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[23.128.96.18]) by mx.google.com with ESMTP id z15si1357918ede.558.2020.05.14.03.05.50; Thu, 14 May 2020 03:06:14 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726073AbgENKES convert rfc822-to-8bit (ORCPT + 99 others); Thu, 14 May 2020 06:04:18 -0400 Received: from out30-56.freemail.mail.aliyun.com ([115.124.30.56]:54444 "EHLO out30-56.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725925AbgENKER (ORCPT ); Thu, 14 May 2020 06:04:17 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R151e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e07425;MF=teawaterz@linux.alibaba.com;NM=1;PH=DS;RN=41;SR=0;TI=SMTPD_---0TyWng6Y_1589450561; Received: from 127.0.0.1(mailfrom:teawaterz@linux.alibaba.com fp:SMTPD_---0TyWng6Y_1589450561) by smtp.aliyun-inc.com(127.0.0.1); Thu, 14 May 2020 18:02:56 +0800 Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.80.23.2.2\)) Subject: Re: [virtio-dev] [PATCH v3 00/15] virtio-mem: paravirtualized memory From: teawater In-Reply-To: <31c5d2f9-c104-53e8-d9c8-cb45f7507c85@redhat.com> Date: Thu, 14 May 2020 18:02:41 +0800 Cc: LKML , Linux MM , virtio-dev@lists.oasis-open.org, Linux Virtualization , kvm@vger.kernel.org, Michal Hocko , Andrew Morton , "Michael S . Tsirkin" , Sebastien Boeuf , Samuel Ortiz , Robert Bradford , Luiz Capitulino , Pankaj Gupta , Igor Mammedov , "Dr . David Alan Gilbert" , Alexander Duyck , Alexander Potapenko , Anshuman Khandual , Anthony Yznaga , Dan Williams , Dave Young , Jason Wang , Johannes Weiner , Juergen Gross , Konrad Rzeszutek Wilk , Len Brown , Mel Gorman , Michal Hocko , Mike Rapoport , Oscar Salvador , Oscar Salvador , Pavel Tatashin , Pavel Tatashin , Pingfan Liu , Qian Cai , "Rafael J. Wysocki" , "Rafael J. Wysocki" , Stefan Hajnoczi , Vlastimil Babka , Wei Yang Content-Transfer-Encoding: 8BIT Message-Id: References: <20200507103119.11219-1-david@redhat.com> <7848642F-6AA7-4B5E-AE0E-DB0857C94A93@linux.alibaba.com> <31c5d2f9-c104-53e8-d9c8-cb45f7507c85@redhat.com> To: David Hildenbrand X-Mailer: Apple Mail (2.3608.80.23.2.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > 2020年5月14日 16:48，David Hildenbrand 写道： > > On 14.05.20 08:44, teawater wrote: >> Hi David, >> >> I got a kernel warning with v2 and v3. > > Hi Hui, > > thanks for playing with the latest versions. Surprisingly, I can > reproduce even by hotplugging a DIMM instead as well - that's good, so > it's not related to virtio-mem, lol. Seems to be some QEMU setup issue > with older machine types. > > Can you switch to a newer qemu machine version, especially > pc-i440fx-5.0? Both, hotplugging DIMMs and virtio-mem works for me with > that QEMU machine just fine. I still could reproduce this issue with pc-i440fx-5.0 or pc. Did I miss anything? > > What also seems to make it work with pc-i440fx-2.1, is giving the > machine 4G of initial memory (-m 4g,slots=10,maxmem=5G). After I changed command, I got error when guest kernel boot: sudo /home/teawater/qemu/qemu/x86_64-softmmu/qemu-system-x86_64 -machine pc,accel=kvm,usb=off -cpu host -no-reboot -nographic -device ide-hd,drive=hd -drive if=none,id=hd,file=/home/teawater/old.img,format=raw -kernel /home/teawater/kernel/bk2/arch/x86/boot/bzImage -append "console=ttyS0 root=/dev/sda nokaslr swiotlb=noforce" -m 4g,slots=10,maxmem=5G -smp 1 -s -monitor unix:/home/teawater/qemu/m,server,nowait SeaBIOS (version rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org) iPXE (http://ipxe.org) 00:03.0 CA00 PCI2.10 PnP PMM+BFF905B0+BFEF05B0 CA00 Booting from ROM.. [ 0.000000] Linux version 5.7.0-rc4-next-20200507+ (teawater@iZbp1bv6xzjxt9vmytkdnmZ) (gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39), GNU ld version0 [ 0.000000] Command line: console=ttyS0 root=/dev/sda nokaslr swiotlb=noforce [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Hygon HygonGenuine [ 0.000000] Centaur CentaurHauls [ 0.000000] zhaoxin Shanghai [ 0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x020: 'AVX-512 opmask' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x040: 'AVX-512 Hi256' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x080: 'AVX-512 ZMM_Hi256' [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: xstate_offset[3]: 832, xstate_sizes[3]: 64 [ 0.000000] x86/fpu: xstate_offset[4]: 896, xstate_sizes[4]: 64 [ 0.000000] x86/fpu: xstate_offset[5]: 960, xstate_sizes[5]: 64 [ 0.000000] x86/fpu: xstate_offset[6]: 1024, xstate_sizes[6]: 512 [ 0.000000] x86/fpu: xstate_offset[7]: 1536, xstate_sizes[7]: 1024 [ 0.000000] x86/fpu: Enabled xstate features 0xff, context size is 2560 bytes, using 'compacted' format. [ 0.000000] BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bffdffff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bffe0000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000013fffffff] usable [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.8 present. [ 0.000000] DMI: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 [ 0.000000] Hypervisor detected: KVM [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2f12001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 227993437 cycles [ 0.000002] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000003] tsc: Detected 2499.998 MHz processor [ 0.001618] last_pfn = 0x140000 max_arch_pfn = 0x400000000 [ 0.001659] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.001666] last_pfn = 0xbffe0 max_arch_pfn = 0x400000000 [ 0.005474] found SMP MP-table at [mem 0x000f5ab0-0x000f5abf] [ 0.005649] check: Scanning 1 areas for low memory corruption [ 0.005676] Using GB pages for direct mapping [ 0.006325] ACPI: Early table checksum verification disabled [ 0.006328] ACPI: RSDP 0x00000000000F58B0 000014 (v00 BOCHS ) [ 0.006330] ACPI: RSDT 0x00000000BFFE1F1E 000038 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.006334] ACPI: FACP 0x00000000BFFE1CF2 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.006339] ACPI: DSDT 0x00000000BFFE0040 001CB2 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.006341] ACPI: FACS 0x00000000BFFE0000 000040 [ 0.006343] ACPI: APIC 0x00000000BFFE1D66 000078 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.006345] ACPI: HPET 0x00000000BFFE1DDE 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.006347] ACPI: SRAT 0x00000000BFFE1E16 0000E0 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.006349] ACPI: WAET 0x00000000BFFE1EF6 000028 (v01 BOCHS BXPCWAET 00000001 BXPC 00000001) [ 0.006421] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.006424] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.006426] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.006428] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x13fffffff] [ 0.006429] ACPI: SRAT: Node 0 PXM 0 [mem 0x140000000-0x3ffffffff] hotplug [ 0.006433] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.006435] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x13fffffff] -> [mem 0x00000000-0x13fffffff] [ 0.006449] NODE_DATA(0) allocated [mem 0x13ffd4000-0x13fffdfff] [ 0.007109] Zone ranges: [ 0.007110] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.007111] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.007112] Normal [mem 0x0000000100000000-0x000000013fffffff] [ 0.007113] Device empty [ 0.007114] Movable zone start for each node [ 0.007116] Early memory node ranges [ 0.007117] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.007119] node 0: [mem 0x0000000000100000-0x00000000bffdffff] [ 0.007119] node 0: [mem 0x0000000100000000-0x000000013fffffff] [ 0.007880] Zeroed struct page in unavailable ranges: 130 pages [ 0.007881] Initmem setup node 0 [mem 0x0000000000001000-0x000000013fffffff] [ 0.023595] ACPI: PM-Timer IO Port: 0x608 [ 0.023611] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.023643] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.023646] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 0.023647] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.023648] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.023649] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.023650] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.023656] Using ACPI (MADT) for SMP configuration information [ 0.023657] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 0.023663] smpboot: Allowing 1 CPUs, 0 hotplug CPUs [ 0.023674] KVM setup pv remote TLB flush [ 0.023690] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.023692] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.023694] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.023695] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.023698] PM: hibernation: Registered nosave memory: [mem 0xbffe0000-0xbfffffff] [ 0.023699] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfeffbfff] [ 0.023701] PM: hibernation: Registered nosave memory: [mem 0xfeffc000-0xfeffffff] [ 0.023702] PM: hibernation: Registered nosave memory: [mem 0xff000000-0xfffbffff] [ 0.023703] PM: hibernation: Registered nosave memory: [mem 0xfffc0000-0xffffffff] [ 0.023706] [mem 0xc0000000-0xfeffbfff] available for PCI devices [ 0.023708] Booting paravirtualized kernel on KVM [ 0.023711] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns [ 0.028274] setup_percpu: NR_CPUS:8192 nr_cpumask_bits:1 nr_cpu_ids:1 nr_node_ids:1 [ 0.028748] percpu: Embedded 55 pages/cpu s188376 r8192 d28712 u2097152 [ 0.028778] KVM setup async PF for cpu 0 [ 0.028784] kvm-stealtime: cpu 0, msr 13bc19580 [ 0.028791] Built 1 zonelists, mobility grouping on. Total pages: 1032041 [ 0.028793] Policy zone: Normal [ 0.028794] Kernel command line: console=ttyS0 root=/dev/sda nokaslr swiotlb=noforce [ 0.029720] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) [ 0.030154] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, linear) [ 0.030188] mem auto-init: stack:off, heap alloc:off, heap free:off [ 0.037244] Memory: 4086692K/4193784K available (14339K kernel code, 2474K rwdata, 4860K rodata, 2408K init, 3324K bss, 107092K reserved, 0K cma-r) [ 0.037640] random: get_random_u64 called from cache_random_seq_create+0x74/0x120 with crng_init=0 [ 0.037687] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.037696] ftrace: allocating 43405 entries in 170 pages [ 0.050874] ftrace: allocated 170 pages with 4 groups [ 0.051295] rcu: Hierarchical RCU implementation. [ 0.051296] rcu: RCU restricting CPUs from NR_CPUS=8192 to nr_cpu_ids=1. [ 0.051297] Trampoline variant of Tasks RCU enabled. [ 0.051298] Rude variant of Tasks RCU enabled. [ 0.051299] Tracing variant of Tasks RCU enabled. [ 0.051299] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies. [ 0.051300] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1 [ 0.054124] NR_IRQS: 524544, nr_irqs: 256, preallocated irqs: 16 [ 0.061561] Console: colour VGA+ 80x25 [ 0.142370] printk: console [ttyS0] enabled [ 0.142809] ACPI: Core revision 20200326 [ 0.143320] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 0.144321] APIC: Switch to symmetric I/O mode setup [ 0.144988] x2apic enabled [ 0.145454] Switched APIC routing to physical x2apic. [ 0.145969] KVM setup pv IPIs [ 0.147050] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.147674] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x240937b9988, max_idle_ns: 440795218083 ns [ 0.148748] Calibrating delay loop (skipped) preset value.. 4999.99 BogoMIPS (lpj=9999992) [ 0.149579] pid_max: default: 32768 minimum: 301 [ 0.150058] LSM: Security Framework initializing [ 0.150536] Yama: becoming mindful. [ 0.150912] AppArmor: AppArmor initialized [ 0.151331] TOMOYO Linux initialized [ 0.151726] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, linear) [ 0.152754] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, linear) [ 0.153769] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 0.154479] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 0.155015] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 0.155619] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 0.156469] Spectre V2 : Mitigation: Enhanced IBRS [ 0.156749] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 0.157531] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 0.158326] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl and seccomp [ 0.159236] TAA: Vulnerable: Clear CPU buffers attempted, no microcode [ 0.163546] Freeing SMP alternatives memory: 40K [ 0.165628] smpboot: CPU0: Intel(R) Xeon(R) Platinum 8269CY CPU @ 2.50GHz (family: 0x6, model: 0x55, stepping: 0x7) [ 0.166697] Performance Events: Skylake events, Intel PMU driver. [ 0.167301] ... version: 2 [ 0.167684] ... bit width: 48 [ 0.168081] ... generic registers: 4 [ 0.168466] ... value mask: 0000ffffffffffff [ 0.168746] ... max period: 000000007fffffff [ 0.168746] ... fixed-purpose events: 3 [ 0.168749] ... event mask: 000000070000000f [ 0.169286] rcu: Hierarchical SRCU implementation. [ 0.170873] smp: Bringing up secondary CPUs ... [ 0.171317] smp: Brought up 1 node, 1 CPU [ 0.171705] smpboot: Max logical packages: 1 [ 0.172117] smpboot: Total of 1 processors activated (4999.99 BogoMIPS) [ 0.172930] devtmpfs: initialized [ 0.173284] x86/mm: Memory block size: 128MB [ 0.173995] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.174923] futex hash table entries: 256 (order: 2, 16384 bytes, linear) [ 0.175607] pinctrl core: initialized pinctrl subsystem [ 0.176208] PM: RTC time: 10:00:50, date: 2020-05-14 [ 0.176688] thermal_sys: Registered thermal governor 'fair_share' [ 0.176689] thermal_sys: Registered thermal governor 'bang_bang' [ 0.176753] thermal_sys: Registered thermal governor 'step_wise' [ 0.177332] thermal_sys: Registered thermal governor 'user_space' [ 0.177982] NET: Registered protocol family 16 [ 0.179042] audit: initializing netlink subsys (disabled) [ 0.179577] audit: type=2000 audit(1589450451.021:1): state=initialized audit_enabled=0 res=1 [ 0.180450] cpuidle: using governor ladder [ 0.180753] cpuidle: using governor menu [ 0.181162] ACPI: bus type PCI registered [ 0.181548] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 0.182236] PCI: Using configuration type 1 for base access [ 0.183818] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 0.184470] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 0.185279] ACPI: Added _OSI(Module Device) [ 0.185693] ACPI: Added _OSI(Processor Device) [ 0.186119] ACPI: Added _OSI(3.0 _SCP Extensions) [ 0.186572] ACPI: Added _OSI(Processor Aggregator Device) [ 0.187089] ACPI: Added _OSI(Linux-Dell-Video) [ 0.187516] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 0.188027] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 0.189526] ACPI: 1 ACPI AML tables successfully acquired and loaded [ 0.190963] ACPI: Interpreter enabled [ 0.191333] ACPI: (supports S0 S3 S4 S5) [ 0.191716] ACPI: Using IOAPIC for interrupt routing [ 0.192199] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 0.192891] ACPI: Enabled 3 GPEs in block 00 to 0F [ 0.196692] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 0.196758] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 0.197500] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 0.199151] acpiphp: Slot [3] registered [ 0.199546] acpiphp: Slot [4] registered [ 0.199941] acpiphp: Slot [5] registered [ 0.200333] acpiphp: Slot [6] registered [ 0.200729] acpiphp: Slot [7] registered [ 0.200770] acpiphp: Slot [8] registered [ 0.201160] acpiphp: Slot [9] registered [ 0.201555] acpiphp: Slot [10] registered [ 0.201952] acpiphp: Slot [11] registered [ 0.202353] acpiphp: Slot [12] registered [ 0.202750] acpiphp: Slot [13] registered [ 0.203151] acpiphp: Slot [14] registered [ 0.203553] acpiphp: Slot [15] registered [ 0.203952] acpiphp: Slot [16] registered [ 0.204355] acpiphp: Slot [17] registered [ 0.204756] acpiphp: Slot [18] registered [ 0.205155] acpiphp: Slot [19] registered [ 0.205559] acpiphp: Slot [20] registered [ 0.205956] acpiphp: Slot [21] registered [ 0.206358] acpiphp: Slot [22] registered [ 0.206756] acpiphp: Slot [23] registered [ 0.207154] acpiphp: Slot [24] registered [ 0.207557] acpiphp: Slot [25] registered [ 0.207957] acpiphp: Slot [26] registered [ 0.208360] acpiphp: Slot [27] registered [ 0.208756] acpiphp: Slot [28] registered [ 0.209154] acpiphp: Slot [29] registered [ 0.209558] acpiphp: Slot [30] registered [ 0.209955] acpiphp: Slot [31] registered [ 0.210351] PCI host bridge to bus 0000:00 [ 0.210742] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 0.211390] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 0.212033] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 0.212745] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 0.212749] pci_bus 0000:00: root bus resource [mem 0x400000000-0x47fffffff window] [ 0.213475] pci_bus 0000:00: root bus resource [bus 00-ff] [ 0.214026] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 0.214916] pci 0000:00:01.0: [8086:7000] type 00 class 0x060100 [ 0.215901] pci 0000:00:01.1: [8086:7010] type 00 class 0x010180 [ 0.218196] pci 0000:00:01.1: reg 0x20: [io 0xc040-0xc04f] [ 0.219476] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7] [ 0.220155] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6] [ 0.220750] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177] [ 0.221430] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376] [ 0.222181] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 0.223058] pci 0000:00:01.3: quirk: [io 0x0600-0x063f] claimed by PIIX4 ACPI [ 0.223752] pci 0000:00:01.3: quirk: [io 0x0700-0x070f] claimed by PIIX4 SMB [ 0.224604] pci 0000:00:02.0: [1234:1111] type 00 class 0x030000 [ 0.225627] pci 0000:00:02.0: reg 0x10: [mem 0xfd000000-0xfdffffff pref] [ 0.227840] pci 0000:00:02.0: reg 0x18: [mem 0xfebf0000-0xfebf0fff] [ 0.230963] pci 0000:00:02.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 0.231766] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 0.233184] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 0.234628] pci 0000:00:03.0: reg 0x14: [io 0xc000-0xc03f] [ 0.239497] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 0.240716] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 0.240833] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 0.241449] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 0.242063] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 0.242642] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 0.243547] iommu: Default domain type: Translated [ 0.244050] pci 0000:00:02.0: vgaarb: setting as boot VGA device [ 0.244631] pci 0000:00:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 0.244750] pci 0000:00:02.0: vgaarb: bridge control possible [ 0.245300] vgaarb: loaded [ 0.245684] SCSI subsystem initialized [ 0.246080] ACPI: bus type USB registered [ 0.246485] usbcore: registered new interface driver usbfs [ 0.247015] usbcore: registered new interface driver hub [ 0.247532] usbcore: registered new device driver usb [ 0.248053] EDAC MC: Ver: 3.0.0 [ 0.248488] PCI: Using ACPI for IRQ routing [ 0.248889] NetLabel: Initializing [ 0.249220] NetLabel: domain hash size = 128 [ 0.249642] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 0.250192] NetLabel: unlabeled traffic allowed by default [ 0.250793] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 0.251268] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 0.255814] clocksource: Switched to clocksource kvm-clock [ 0.263083] VFS: Disk quotas dquot_6.6.0 [ 0.263479] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.264215] AppArmor: AppArmor Filesystem Enabled [ 0.264683] pnp: PnP ACPI init [ 0.265570] pnp: PnP ACPI: found 6 devices [ 0.271088] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 0.271958] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 0.272551] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 0.273150] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 0.273805] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfffff window] [ 0.274463] pci_bus 0000:00: resource 8 [mem 0x400000000-0x47fffffff window] [ 0.275178] NET: Registered protocol family 2 [ 0.275726] tcp_listen_portaddr_hash hash table entries: 2048 (order: 3, 32768 bytes, linear) [ 0.276548] TCP established hash table entries: 32768 (order: 6, 262144 bytes, linear) [ 0.277341] TCP bind hash table entries: 32768 (order: 7, 524288 bytes, linear) [ 0.278089] TCP: Hash tables configured (established 32768 bind 32768) [ 0.279086] UDP hash table entries: 2048 (order: 4, 65536 bytes, linear) [ 0.279734] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes, linear) [ 0.280450] NET: Registered protocol family 1 [ 0.280896] pci 0000:00:01.0: PIIX3: Enabling Passive Release [ 0.281455] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 0.282028] pci 0000:00:01.0: Activating ISA DMA hang workarounds [ 0.282652] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 0.283463] PCI: CLS 0 bytes, default 64 [ 0.283865] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 0.284483] software IO TLB: mapped [mem 0xbffdf000-0xbffdf800] (0MB) [ 0.285199] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x240937b9988, max_idle_ns: 440795218083 ns [ 0.286167] check: Scanning for low memory corruption every 60 seconds [ 0.286998] Initialise system trusted keyrings [ 0.287462] workingset: timestamp_bits=36 max_order=20 bucket_order=0 [ 0.288814] zbud: loaded [ 0.289224] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.289871] fuse: init (API version 7.31) [ 0.297407] Key type asymmetric registered [ 0.297815] Asymmetric key parser 'x509' registered [ 0.298289] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247) [ 0.299015] io scheduler mq-deadline registered [ 0.299548] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 0.300278] ACPI: Power Button [PWRF] [ 0.300786] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled [ 0.301606] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 0.302840] Linux agpgart interface v0.103 [ 0.304481] loop: module loaded [ 0.305665] scsi host0: ata_piix [ 0.306042] scsi host1: ata_piix [ 0.306385] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc040 irq 14 [ 0.307031] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc048 irq 15 [ 0.307930] libphy: Fixed MDIO Bus: probed [ 0.308331] tun: Universal TUN/TAP device driver, 1.6 [ 0.308847] PPP generic driver version 2.4.2 [ 0.309281] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.309907] ehci-pci: EHCI PCI platform driver [ 0.310340] ehci-platform: EHCI generic platform driver [ 0.310846] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.311437] ohci-pci: OHCI PCI platform driver [ 0.311869] ohci-platform: OHCI generic platform driver [ 0.312375] uhci_hcd: USB Universal Host Controller Interface driver [ 0.313181] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12 [ 0.314458] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 0.314934] serio: i8042 AUX port at 0x60,0x64 irq 12 [ 0.315476] mousedev: PS/2 mouse device common for all mice [ 0.316182] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1 [ 0.317177] rtc_cmos 00:00: RTC can wake from S4 [ 0.317895] rtc_cmos 00:00: registered as rtc0 [ 0.318368] rtc_cmos 00:00: setting system clock to 2020-05-14T10:00:50 UTC (1589450450) [ 0.319151] rtc_cmos 00:00: alarms up to one day, y3k, 114 bytes nvram, hpet irqs [ 0.319867] i2c /dev entries driver [ 0.320229] device-mapper: uevent: version 1.0.3 [ 0.320704] device-mapper: ioctl: 4.42.0-ioctl (2020-02-27) initialised: dm-devel@redhat.com [ 0.321515] intel_pstate: CPU model not supported [ 0.321972] ledtrig-cpu: registered to indicate activity on CPUs [ 0.322567] drop_monitor: Initializing network drop monitor service [ 0.323263] NET: Registered protocol family 10 [ 0.323814] Segment Routing with IPv6 [ 0.324183] NET: Registered protocol family 17 [ 0.324631] Key type dns_resolver registered [ 0.325105] IPI shorthand broadcast: enabled [ 0.325522] sched_clock: Marking stable (238560739, 86481164)->(334226795, -9184892) [ 0.326296] registered taskstats version 1 [ 0.326696] Loading compiled-in X.509 certificates [ 0.328051] Loaded X.509 cert 'Build time autogenerated kernel key: bd0fe972797988f0782b694de4de56b1ff6c4bc3' [ 0.329022] zswap: loaded using pool lzo/zbud [ 0.329489] Key type ._fscrypt registered [ 0.329877] Key type .fscrypt registered [ 0.330259] Key type fscrypt-provisioning registered [ 0.330851] Key type big_key registered [ 0.331274] Key type encrypted registered [ 0.331662] AppArmor: AppArmor sha1 policy hashing enabled [ 0.332190] ima: No TPM chip found, activating TPM-bypass! [ 0.332716] ima: Allocated hash algorithm: sha1 [ 0.333171] ima: No architecture policies found [ 0.333646] evm: Initialising EVM extended attributes: [ 0.334144] evm: security.selinux [ 0.334463] evm: security.SMACK64 [ 0.334782] evm: security.SMACK64EXEC [ 0.335138] evm: security.SMACK64TRANSMUTE [ 0.335531] evm: security.SMACK64MMAP [ 0.335884] evm: security.apparmor [ 0.336215] evm: security.ima [ 0.336504] evm: security.capability [ 0.336855] evm: HMAC attrs: 0x1 [ 0.337354] PM: Magic number: 4:67:22 [ 0.473227] ata2.00: ATA-7: QEMU HARDDISK, 2.5+, max UDMA/100 [ 0.473785] ata2.00: 524288 sectors, multi 16: LBA48 [ 0.474659] scsi 1:0:0:0: Direct-Access ATA QEMU HARDDISK 2.5+ PQ: 0 ANSI: 5 [ 0.475536] sd 1:0:0:0: [sda] 524288 512-byte logical blocks: (268 MB/256 MiB) [ 0.476237] sd 1:0:0:0: [sda] Write Protect is off [ 0.476704] sd 1:0:0:0: Attached scsi generic sg0 type 0 [ 0.477239] sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 0.478205] ------------[ cut here ]------------ [ 0.478652] ata_piix 0000:00:01.1: DMA addr 0x0000000139e4f000+4096 overflow (mask ffffffff, bus limit 0). [ 0.479580] WARNING: CPU: 0 PID: 6 at /home/teawater/kernel/linux2/kernel/dma/direct.c:400 dma_direct_map_page+0x118/0x130 [ 0.480630] Modules linked in: [ 0.480933] CPU: 0 PID: 6 Comm: kworker/0:0H Not tainted 5.7.0-rc4-next-20200507+ #10 [ 0.481681] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 [ 0.482770] Workqueue: kblockd blk_mq_run_work_fn [ 0.483230] RIP: 0010:dma_direct_map_page+0x118/0x130 [ 0.483715] Code: 8b 1f e8 6b 48 5b 00 48 8d 4c 24 08 48 89 c6 4c 89 2c 24 4d 89 e1 49 89 e8 48 89 da 48 c7 c7 48 e4 34 82 31 c0 e8 18 77 f7 ff <00 [ 0.485484] RSP: 0000:ffffc9000003bbe8 EFLAGS: 00010082 [ 0.485984] RAX: 0000000000000000 RBX: ffff88813b3db310 RCX: ffffffff82667968 [ 0.486663] RDX: 0000000000000001 RSI: 0000000000000096 RDI: 0000000000000046 [ 0.487342] RBP: 0000000000001000 R08: 00000000000001bb R09: 00000000000001bb [ 0.488017] R10: 0000000000000000 R11: ffffc9000003b958 R12: 00000000ffffffff [ 0.488699] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888139e272a8 [ 0.489379] FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 [ 0.490148] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 0.490698] CR2: 0000000000000000 CR3: 000000000260a001 CR4: 0000000000360ef0 [ 0.491377] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 0.492057] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 0.492736] Call Trace: [ 0.492985] dma_direct_map_sg+0x64/0xb0 [ 0.493369] ? ata_scsi_write_same_xlat+0x350/0x350 [ 0.493837] ata_qc_issue+0x214/0x260 [ 0.494199] ? ata_scsi_write_same_xlat+0x350/0x350 [ 0.494665] __ata_scsi_queuecmd+0x190/0x410 [ 0.495077] ata_scsi_queuecmd+0x40/0x80 [ 0.495455] scsi_queue_rq+0x697/0xa90 [ 0.495819] blk_mq_dispatch_rq_list+0x90/0x590 [ 0.496259] ? elv_rb_del+0x1f/0x30 [ 0.496597] ? deadline_remove_request+0x6a/0xb0 [ 0.497042] blk_mq_do_dispatch_sched+0xe9/0x130 [ 0.497488] __blk_mq_sched_dispatch_requests+0xd8/0x160 [ 0.497996] blk_mq_sched_dispatch_requests+0x30/0x60 [ 0.498483] __blk_mq_run_hw_queue+0x7e/0x130 [ 0.498904] process_one_work+0x166/0x370 [ 0.499296] worker_thread+0x49/0x3e0 [ 0.499650] kthread+0xf8/0x130 [ 0.499957] ? max_active_store+0x80/0x80 [ 0.500347] ? kthread_bind+0x10/0x10 [ 0.500701] ret_from_fork+0x1f/0x30 [ 0.501048] ---[ end trace cfd92832ca2f7781 ]--- [ 0.524773] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.525404] ata2.00: failed command: READ DMA [ 0.525824] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.525824] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.527275] ata2.00: status: { DRDY } [ 0.528160] ata2.00: configured for MWDMA2 [ 0.528558] ata2: EH complete [ 0.540770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.541399] ata2.00: failed command: READ DMA [ 0.541818] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.541818] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.543265] ata2.00: status: { DRDY } [ 0.544129] ata2.00: configured for MWDMA2 [ 0.544525] ata2: EH complete [ 0.556771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.557389] ata2.00: failed command: READ DMA [ 0.557810] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.557810] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.559255] ata2.00: status: { DRDY } [ 0.560115] ata2.00: configured for MWDMA2 [ 0.560509] ata2: EH complete [ 0.572770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.573398] ata2.00: failed command: READ DMA [ 0.573818] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.573818] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.575264] ata2.00: status: { DRDY } [ 0.576125] ata2.00: configured for MWDMA2 [ 0.576522] ata2: EH complete [ 0.588772] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.589409] ata2.00: failed command: READ DMA [ 0.589831] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.589831] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.591275] ata2.00: status: { DRDY } [ 0.592136] ata2.00: configured for MWDMA2 [ 0.592532] ata2: EH complete [ 0.604771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.605400] ata2.00: failed command: READ DMA [ 0.605821] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.605821] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.607273] ata2.00: status: { DRDY } [ 0.608135] ata2.00: configured for MWDMA2 [ 0.608535] sd 1:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s [ 0.609415] sd 1:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] [ 0.610074] sd 1:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command [ 0.610703] sd 1:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 [ 0.611402] blk_update_request: I/O error, dev sda, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 0.612336] Buffer I/O error on dev sda, logical block 0, async page read [ 0.612987] ata2: EH complete [ 0.636771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.637389] ata2.00: failed command: READ DMA [ 0.637808] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.637808] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.639254] ata2.00: status: { DRDY } [ 0.640112] ata2.00: configured for MWDMA2 [ 0.640511] ata2: EH complete [ 0.652772] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.653398] ata2.00: failed command: READ DMA [ 0.653818] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.653818] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.655267] ata2.00: status: { DRDY } [ 0.656126] ata2.00: configured for MWDMA2 [ 0.656523] ata2: EH complete [ 0.668771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.669396] ata2.00: failed command: READ DMA [ 0.669815] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.669815] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.671264] ata2.00: status: { DRDY } [ 0.672124] ata2.00: configured for MWDMA2 [ 0.672521] ata2: EH complete [ 0.684770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.685390] ata2.00: failed command: READ DMA [ 0.685807] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.685807] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.687252] ata2.00: status: { DRDY } [ 0.688109] ata2.00: configured for MWDMA2 [ 0.688506] ata2: EH complete [ 0.700769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.701388] ata2.00: failed command: READ DMA [ 0.701805] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.701805] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.703249] ata2.00: status: { DRDY } [ 0.704107] ata2.00: configured for MWDMA2 [ 0.704502] ata2: EH complete [ 0.716769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.717389] ata2.00: failed command: READ DMA [ 0.717806] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.717806] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.719251] ata2.00: status: { DRDY } [ 0.720110] ata2.00: configured for MWDMA2 [ 0.720507] sd 1:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s [ 0.721389] sd 1:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] [ 0.722042] sd 1:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command [ 0.722676] sd 1:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 [ 0.723374] blk_update_request: I/O error, dev sda, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 0.724308] Buffer I/O error on dev sda, logical block 0, async page read [ 0.724959] ata2: EH complete [ 0.748770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.749390] ata2.00: failed command: READ DMA [ 0.749810] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.749810] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.751271] ata2.00: status: { DRDY } [ 0.752134] ata2.00: configured for MWDMA2 [ 0.752533] ata2: EH complete [ 0.764771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.765388] ata2.00: failed command: READ DMA [ 0.765809] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.765809] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.767257] ata2.00: status: { DRDY } [ 0.768115] ata2.00: configured for MWDMA2 [ 0.768511] ata2: EH complete [ 0.780773] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.781390] ata2.00: failed command: READ DMA [ 0.781813] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.781813] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.783263] ata2.00: status: { DRDY } [ 0.784123] ata2.00: configured for MWDMA2 [ 0.784520] ata2: EH complete [ 0.796771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.797394] ata2.00: failed command: READ DMA [ 0.797814] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.797814] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.799262] ata2.00: status: { DRDY } [ 0.800122] ata2.00: configured for MWDMA2 [ 0.800519] ata2: EH complete [ 0.812770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.813395] ata2.00: failed command: READ DMA [ 0.813815] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.813815] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.815263] ata2.00: status: { DRDY } [ 0.816121] ata2.00: configured for MWDMA2 [ 0.816517] ata2: EH complete [ 0.828770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.829395] ata2.00: failed command: READ DMA [ 0.829814] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.829814] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.831267] ata2.00: status: { DRDY } [ 0.832126] ata2.00: configured for MWDMA2 [ 0.832524] sd 1:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s [ 0.833403] sd 1:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] [ 0.834060] sd 1:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command [ 0.834692] sd 1:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 [ 0.835389] blk_update_request: I/O error, dev sda, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 0.836319] Buffer I/O error on dev sda, logical block 0, async page read [ 0.836970] ata2: EH complete [ 0.837267] ldm_validate_partition_table(): Disk read failed. [ 0.860772] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.861401] ata2.00: failed command: READ DMA [ 0.861822] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.861822] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.863269] ata2.00: status: { DRDY } [ 0.864132] ata2.00: configured for MWDMA2 [ 0.864528] ata2: EH complete [ 0.876771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.877397] ata2.00: failed command: READ DMA [ 0.877817] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.877817] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.879266] ata2.00: status: { DRDY } [ 0.880127] ata2.00: configured for MWDMA2 [ 0.880524] ata2: EH complete [ 0.892773] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.893399] ata2.00: failed command: READ DMA [ 0.893820] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.893820] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.895273] ata2.00: status: { DRDY } [ 0.896133] ata2.00: configured for MWDMA2 [ 0.896531] ata2: EH complete [ 0.908770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.909394] ata2.00: failed command: READ DMA [ 0.909814] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.909814] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.911257] ata2.00: status: { DRDY } [ 0.912116] ata2.00: configured for MWDMA2 [ 0.912512] ata2: EH complete [ 0.924770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.925398] ata2.00: failed command: READ DMA [ 0.925817] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.925817] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.927261] ata2.00: status: { DRDY } [ 0.928118] ata2.00: configured for MWDMA2 [ 0.928515] ata2: EH complete [ 0.940771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.941387] ata2.00: failed command: READ DMA [ 0.941805] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.941805] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.943250] ata2.00: status: { DRDY } [ 0.944108] ata2.00: configured for MWDMA2 [ 0.944505] sd 1:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s [ 0.945382] sd 1:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] [ 0.946039] sd 1:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command [ 0.946671] sd 1:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 [ 0.947370] blk_update_request: I/O error, dev sda, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 0.948302] Buffer I/O error on dev sda, logical block 0, async page read [ 0.948956] ata2: EH complete [ 0.972774] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.973395] ata2.00: failed command: READ DMA [ 0.973812] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.973812] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.975262] ata2.00: status: { DRDY } [ 0.976126] ata2.00: configured for MWDMA2 [ 0.976524] ata2: EH complete [ 0.988770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 0.989396] ata2.00: failed command: READ DMA [ 0.989815] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 0.989815] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 0.991257] ata2.00: status: { DRDY } [ 0.992117] ata2.00: configured for MWDMA2 [ 0.992511] ata2: EH complete [ 1.004769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.005398] ata2.00: failed command: READ DMA [ 1.005818] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.005818] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.007261] ata2.00: status: { DRDY } [ 1.008122] ata2.00: configured for MWDMA2 [ 1.008518] ata2: EH complete [ 1.020770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.021398] ata2.00: failed command: READ DMA [ 1.021819] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.021819] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.023262] ata2.00: status: { DRDY } [ 1.024123] ata2.00: configured for MWDMA2 [ 1.024519] ata2: EH complete [ 1.036771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.037396] ata2.00: failed command: READ DMA [ 1.037816] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.037816] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.039262] ata2.00: status: { DRDY } [ 1.040120] ata2.00: configured for MWDMA2 [ 1.040515] ata2: EH complete [ 1.052772] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.053397] ata2.00: failed command: READ DMA [ 1.053818] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.053818] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.055264] ata2.00: status: { DRDY } [ 1.056125] ata2.00: configured for MWDMA2 [ 1.056525] sd 1:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s [ 1.057404] sd 1:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] [ 1.058066] sd 1:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command [ 1.058695] sd 1:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 [ 1.059393] blk_update_request: I/O error, dev sda, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 1.060325] Buffer I/O error on dev sda, logical block 0, async page read [ 1.060973] ata2: EH complete [ 1.084771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.085395] ata2.00: failed command: READ DMA [ 1.085814] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.085814] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.087259] ata2.00: status: { DRDY } [ 1.088119] ata2.00: configured for MWDMA2 [ 1.088514] ata2: EH complete [ 1.100770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.101395] ata2.00: failed command: READ DMA [ 1.101814] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.101814] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.103259] ata2.00: status: { DRDY } [ 1.104118] ata2.00: configured for MWDMA2 [ 1.104515] ata2: EH complete [ 1.116769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.117388] ata2.00: failed command: READ DMA [ 1.117805] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.117805] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.119248] ata2.00: status: { DRDY } [ 1.120106] ata2.00: configured for MWDMA2 [ 1.120503] ata2: EH complete [ 1.132770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.133390] ata2.00: failed command: READ DMA [ 1.133807] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.133807] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.135253] ata2.00: status: { DRDY } [ 1.136113] ata2.00: configured for MWDMA2 [ 1.136509] ata2: EH complete [ 1.148770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.149389] ata2.00: failed command: READ DMA [ 1.149806] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.149806] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.151248] ata2.00: status: { DRDY } [ 1.152108] ata2.00: configured for MWDMA2 [ 1.152503] ata2: EH complete [ 1.164770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.165395] ata2.00: failed command: READ DMA [ 1.165814] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.165814] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.167258] ata2.00: status: { DRDY } [ 1.168119] ata2.00: configured for MWDMA2 [ 1.168515] sd 1:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s [ 1.169397] sd 1:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] [ 1.170054] sd 1:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command [ 1.170685] sd 1:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 [ 1.171382] blk_update_request: I/O error, dev sda, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 1.172315] Buffer I/O error on dev sda, logical block 0, async page read [ 1.172965] ata2: EH complete [ 1.196770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.197391] ata2.00: failed command: READ DMA [ 1.197811] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.197811] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.199265] ata2.00: status: { DRDY } [ 1.200128] ata2.00: configured for MWDMA2 [ 1.200525] ata2: EH complete [ 1.212770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.213389] ata2.00: failed command: READ DMA [ 1.213809] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.213809] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.215253] ata2.00: status: { DRDY } [ 1.216114] ata2.00: configured for MWDMA2 [ 1.216510] ata2: EH complete [ 1.228773] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.229398] ata2.00: failed command: READ DMA [ 1.229819] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.229819] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.231273] ata2.00: status: { DRDY } [ 1.232132] ata2.00: configured for MWDMA2 [ 1.232528] ata2: EH complete [ 1.244773] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.245399] ata2.00: failed command: READ DMA [ 1.245821] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.245821] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.247269] ata2.00: status: { DRDY } [ 1.248128] ata2.00: configured for MWDMA2 [ 1.248525] ata2: EH complete [ 1.260770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.261391] ata2.00: failed command: READ DMA [ 1.261813] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.261813] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.263263] ata2.00: status: { DRDY } [ 1.264124] ata2.00: configured for MWDMA2 [ 1.264520] ata2: EH complete [ 1.276771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.277389] ata2.00: failed command: READ DMA [ 1.277809] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.277809] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.279253] ata2.00: status: { DRDY } [ 1.280112] ata2.00: configured for MWDMA2 [ 1.280510] sd 1:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s [ 1.281385] sd 1:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] [ 1.282040] sd 1:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command [ 1.282672] sd 1:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 [ 1.283371] blk_update_request: I/O error, dev sda, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 1.284305] Buffer I/O error on dev sda, logical block 0, async page read [ 1.284960] ata2: EH complete [ 1.285254] Dev sda: unable to read RDB block 0 [ 1.308770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.309404] ata2.00: failed command: READ DMA [ 1.309825] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.309825] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.311278] ata2.00: status: { DRDY } [ 1.312142] ata2.00: configured for MWDMA2 [ 1.312538] ata2: EH complete [ 1.324770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.325398] ata2.00: failed command: READ DMA [ 1.325817] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.325817] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.327269] ata2.00: status: { DRDY } [ 1.328127] ata2.00: configured for MWDMA2 [ 1.328520] ata2: EH complete [ 1.340770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.341396] ata2.00: failed command: READ DMA [ 1.341813] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.341813] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.343258] ata2.00: status: { DRDY } [ 1.344120] ata2.00: configured for MWDMA2 [ 1.344515] ata2: EH complete [ 1.356771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.357396] ata2.00: failed command: READ DMA [ 1.357815] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.357815] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.359258] ata2.00: status: { DRDY } [ 1.360118] ata2.00: configured for MWDMA2 [ 1.360514] ata2: EH complete [ 1.372772] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.373399] ata2.00: failed command: READ DMA [ 1.373822] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.373822] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.375275] ata2.00: status: { DRDY } [ 1.376135] ata2.00: configured for MWDMA2 [ 1.376533] ata2: EH complete [ 1.388773] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.389397] ata2.00: failed command: READ DMA [ 1.389817] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.389817] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.391263] ata2.00: status: { DRDY } [ 1.392122] ata2.00: configured for MWDMA2 [ 1.392522] sd 1:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s [ 1.393400] sd 1:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] [ 1.394057] sd 1:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command [ 1.394687] sd 1:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 [ 1.395388] blk_update_request: I/O error, dev sda, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 1.396323] Buffer I/O error on dev sda, logical block 0, async page read [ 1.396975] ata2: EH complete [ 1.420771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.421400] ata2.00: failed command: READ DMA [ 1.421819] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.421819] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.423267] ata2.00: status: { DRDY } [ 1.424124] ata2.00: configured for MWDMA2 [ 1.424521] ata2: EH complete [ 1.436771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.437395] ata2.00: failed command: READ DMA [ 1.437813] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.437813] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.439261] ata2.00: status: { DRDY } [ 1.440120] ata2.00: configured for MWDMA2 [ 1.440516] ata2: EH complete [ 1.452770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.453399] ata2.00: failed command: READ DMA [ 1.453816] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.453816] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.455259] ata2.00: status: { DRDY } [ 1.456116] ata2.00: configured for MWDMA2 [ 1.456512] ata2: EH complete [ 1.468769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.469387] ata2.00: failed command: READ DMA [ 1.469802] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.469802] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.471246] ata2.00: status: { DRDY } [ 1.472105] ata2.00: configured for MWDMA2 [ 1.472501] ata2: EH complete [ 1.484769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.485403] ata2.00: failed command: READ DMA [ 1.485822] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.485822] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.487269] ata2.00: status: { DRDY } [ 1.488128] ata2.00: configured for MWDMA2 [ 1.488524] ata2: EH complete [ 1.500770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.501389] ata2.00: failed command: READ DMA [ 1.501807] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.501807] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.503252] ata2.00: status: { DRDY } [ 1.504114] ata2.00: configured for MWDMA2 [ 1.504512] sd 1:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s [ 1.505395] sd 1:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] [ 1.506054] sd 1:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command [ 1.506685] sd 1:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 [ 1.507383] blk_update_request: I/O error, dev sda, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 1.508319] Buffer I/O error on dev sda, logical block 0, async page read [ 1.508972] ata2: EH complete [ 1.532770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.533402] ata2.00: failed command: READ DMA [ 1.533825] ata2.00: cmd c8/00:08:18:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.533825] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.535282] ata2.00: status: { DRDY } [ 1.536143] ata2.00: configured for MWDMA2 [ 1.536542] ata2: EH complete [ 1.548771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.549394] ata2.00: failed command: READ DMA [ 1.549817] ata2.00: cmd c8/00:08:18:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.549817] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.551272] ata2.00: status: { DRDY } [ 1.552132] ata2.00: configured for MWDMA2 [ 1.552530] ata2: EH complete [ 1.564771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.565392] ata2.00: failed command: READ DMA [ 1.565814] ata2.00: cmd c8/00:08:18:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.565814] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.567271] ata2.00: status: { DRDY } [ 1.568129] ata2.00: configured for MWDMA2 [ 1.568530] ata2: EH complete [ 1.580769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.581390] ata2.00: failed command: READ DMA [ 1.581812] ata2.00: cmd c8/00:08:18:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.581812] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.583257] ata2.00: status: { DRDY } [ 1.584114] ata2.00: configured for MWDMA2 [ 1.584510] ata2: EH complete [ 1.596770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.597389] ata2.00: failed command: READ DMA [ 1.597809] ata2.00: cmd c8/00:08:18:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.597809] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.599260] ata2.00: status: { DRDY } [ 1.600119] ata2.00: configured for MWDMA2 [ 1.600515] ata2: EH complete [ 1.612770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.613394] ata2.00: failed command: READ DMA [ 1.613814] ata2.00: cmd c8/00:08:18:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.613814] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.615276] ata2.00: status: { DRDY } [ 1.616139] ata2.00: configured for MWDMA2 [ 1.616539] sd 1:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s [ 1.617421] sd 1:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] [ 1.618081] sd 1:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command [ 1.618714] sd 1:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 00 18 00 00 08 00 [ 1.619418] blk_update_request: I/O error, dev sda, sector 24 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 1.620369] Buffer I/O error on dev sda, logical block 3, async page read [ 1.621028] ata2: EH complete [ 1.644770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.645397] ata2.00: failed command: READ DMA [ 1.645819] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.645819] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.647272] ata2.00: status: { DRDY } [ 1.648136] ata2.00: configured for MWDMA2 [ 1.648536] ata2: EH complete [ 1.660769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.661389] ata2.00: failed command: READ DMA [ 1.661809] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.661809] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.663260] ata2.00: status: { DRDY } [ 1.664119] ata2.00: configured for MWDMA2 [ 1.664516] ata2: EH complete [ 1.676770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.677393] ata2.00: failed command: READ DMA [ 1.677812] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.677812] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.679262] ata2.00: status: { DRDY } [ 1.680120] ata2.00: configured for MWDMA2 [ 1.680517] ata2: EH complete [ 1.692769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.693390] ata2.00: failed command: READ DMA [ 1.693810] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.693810] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.695265] ata2.00: status: { DRDY } [ 1.696128] ata2.00: configured for MWDMA2 [ 1.696526] ata2: EH complete [ 1.708769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.709395] ata2.00: failed command: READ DMA [ 1.709817] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.709817] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.711277] ata2.00: status: { DRDY } [ 1.712138] ata2.00: configured for MWDMA2 [ 1.712535] ata2: EH complete [ 1.724769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.725393] ata2.00: failed command: READ DMA [ 1.725814] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.725814] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.727265] ata2.00: status: { DRDY } [ 1.728125] ata2.00: configured for MWDMA2 [ 1.728525] ata2: EH complete [ 1.752770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.753396] ata2.00: failed command: READ DMA [ 1.753815] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.753815] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.755272] ata2.00: status: { DRDY } [ 1.756130] ata2.00: configured for MWDMA2 [ 1.756525] ata2: EH complete [ 1.768769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.769386] ata2.00: failed command: READ DMA [ 1.769803] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.769803] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.771250] ata2.00: status: { DRDY } [ 1.772108] ata2.00: configured for MWDMA2 [ 1.772503] ata2: EH complete [ 1.784769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.785390] ata2.00: failed command: READ DMA [ 1.785812] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.785812] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.787264] ata2.00: status: { DRDY } [ 1.788127] ata2.00: configured for MWDMA2 [ 1.788525] ata2: EH complete [ 1.800769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.801392] ata2.00: failed command: READ DMA [ 1.801813] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.801813] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.803264] ata2.00: status: { DRDY } [ 1.804126] ata2.00: configured for MWDMA2 [ 1.804522] ata2: EH complete [ 1.816770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.817391] ata2.00: failed command: READ DMA [ 1.817813] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.817813] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.819264] ata2.00: status: { DRDY } [ 1.820126] ata2.00: configured for MWDMA2 [ 1.820523] ata2: EH complete [ 1.832773] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.833398] ata2.00: failed command: READ DMA [ 1.833819] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in [ 1.833819] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.835275] ata2.00: status: { DRDY } [ 1.836136] ata2.00: configured for MWDMA2 [ 1.836537] ata2: EH complete [ 1.836833] sda: unable to read partition table [ 1.837393] sd 1:0:0:0: [sda] Attached SCSI disk [ 1.837855] md: Waiting for all devices to be available before autodetect [ 1.838510] md: If you don't use raid, use raid=noautodetect [ 1.839152] sda: detected capacity change from 0 to 268435456 [ 1.839759] sda: detected capacity change from 0 to 268435456 [ 1.840346] md: Autodetecting RAID arrays. [ 1.840741] md: autorun ... [ 1.841018] md: ... autorun DONE. [ 1.864774] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.865398] ata2.00: failed command: READ DMA [ 1.865821] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 1.865821] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.867274] ata2.00: status: { DRDY } [ 1.868146] ata2.00: configured for MWDMA2 [ 1.868546] ata2: EH complete [ 1.880772] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.881393] ata2.00: failed command: READ DMA [ 1.881816] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 1.881816] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.883269] ata2.00: status: { DRDY } [ 1.884130] ata2.00: configured for MWDMA2 [ 1.884531] ata2: EH complete [ 1.896771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.897392] ata2.00: failed command: READ DMA [ 1.897816] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 1.897816] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.899265] ata2.00: status: { DRDY } [ 1.900125] ata2.00: configured for MWDMA2 [ 1.900524] ata2: EH complete [ 1.912771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.913395] ata2.00: failed command: READ DMA [ 1.913821] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 1.913821] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.915281] ata2.00: status: { DRDY } [ 1.916144] ata2.00: configured for MWDMA2 [ 1.916544] ata2: EH complete [ 1.928769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.929392] ata2.00: failed command: READ DMA [ 1.929814] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 1.929814] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.931269] ata2.00: status: { DRDY } [ 1.932129] ata2.00: configured for MWDMA2 [ 1.932529] ata2: EH complete [ 1.944769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.945402] ata2.00: failed command: READ DMA [ 1.945826] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 1.945826] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.947295] ata2.00: status: { DRDY } [ 1.948156] ata2.00: configured for MWDMA2 [ 1.948561] ata2: EH complete [ 1.948860] EXT4-fs (sda): unable to read superblock [ 1.972772] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.973397] ata2.00: failed command: READ DMA [ 1.973819] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 1.973819] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.975278] ata2.00: status: { DRDY } [ 1.976142] ata2.00: configured for MWDMA2 [ 1.976541] ata2: EH complete [ 1.988771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 1.989390] ata2.00: failed command: READ DMA [ 1.989812] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 1.989812] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 1.991263] ata2.00: status: { DRDY } [ 1.992126] ata2.00: configured for MWDMA2 [ 1.992526] ata2: EH complete [ 2.004773] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.005394] ata2.00: failed command: READ DMA [ 2.005817] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.005817] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.007276] ata2.00: status: { DRDY } [ 2.008141] ata2.00: configured for MWDMA2 [ 2.008542] ata2: EH complete [ 2.020770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.021394] ata2.00: failed command: READ DMA [ 2.021815] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.021815] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.023273] ata2.00: status: { DRDY } [ 2.024138] ata2.00: configured for MWDMA2 [ 2.024538] ata2: EH complete [ 2.036771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.037392] ata2.00: failed command: READ DMA [ 2.037815] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.037815] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.039272] ata2.00: status: { DRDY } [ 2.040135] ata2.00: configured for MWDMA2 [ 2.040533] ata2: EH complete [ 2.052771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.053393] ata2.00: failed command: READ DMA [ 2.053816] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.053816] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.055273] ata2.00: status: { DRDY } [ 2.056136] ata2.00: configured for MWDMA2 [ 2.056538] ata2: EH complete [ 2.056834] EXT4-fs (sda): unable to read superblock [ 2.080771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.081394] ata2.00: failed command: READ DMA [ 2.081815] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.081815] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.083272] ata2.00: status: { DRDY } [ 2.084137] ata2.00: configured for MWDMA2 [ 2.084536] ata2: EH complete [ 2.096770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.097393] ata2.00: failed command: READ DMA [ 2.097814] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.097814] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.100505] ata2.00: status: { DRDY } [ 2.101411] ata2.00: configured for MWDMA2 [ 2.101809] ata2: EH complete [ 2.112771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.113392] ata2.00: failed command: READ DMA [ 2.113812] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.113812] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.115270] ata2.00: status: { DRDY } [ 2.116137] ata2.00: configured for MWDMA2 [ 2.116537] ata2: EH complete [ 2.128770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.129395] ata2.00: failed command: READ DMA [ 2.129819] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.129819] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.131275] ata2.00: status: { DRDY } [ 2.132138] ata2.00: configured for MWDMA2 [ 2.132538] ata2: EH complete [ 2.144772] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.145403] ata2.00: failed command: READ DMA [ 2.145825] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.145825] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.147286] ata2.00: status: { DRDY } [ 2.148149] ata2.00: configured for MWDMA2 [ 2.148549] ata2: EH complete [ 2.160771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.161400] ata2.00: failed command: READ DMA [ 2.161822] ata2.00: cmd c8/00:02:02:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.161822] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.163282] ata2.00: status: { DRDY } [ 2.164146] ata2.00: configured for MWDMA2 [ 2.164548] ata2: EH complete [ 2.164846] EXT4-fs (sda): unable to read superblock [ 2.184771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.185398] ata2.00: failed command: READ DMA [ 2.185820] ata2.00: cmd c8/00:02:00:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.185820] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.187280] ata2.00: status: { DRDY } [ 2.188146] ata2.00: configured for MWDMA2 [ 2.188548] ata2: EH complete [ 2.200770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.201397] ata2.00: failed command: READ DMA [ 2.201820] ata2.00: cmd c8/00:02:00:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.201820] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.203281] ata2.00: status: { DRDY } [ 2.204144] ata2.00: configured for MWDMA2 [ 2.204543] ata2: EH complete [ 2.216770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.217404] ata2.00: failed command: READ DMA [ 2.217825] ata2.00: cmd c8/00:02:00:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.217825] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.219290] ata2.00: status: { DRDY } [ 2.220152] ata2.00: configured for MWDMA2 [ 2.220551] ata2: EH complete [ 2.232770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.233396] ata2.00: failed command: READ DMA [ 2.233819] ata2.00: cmd c8/00:02:00:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.233819] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.235281] ata2.00: status: { DRDY } [ 2.236145] ata2.00: configured for MWDMA2 [ 2.236545] ata2: EH complete [ 2.248769] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.249396] ata2.00: failed command: READ DMA [ 2.249818] ata2.00: cmd c8/00:02:00:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.249818] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.251279] ata2.00: status: { DRDY } [ 2.252145] ata2.00: configured for MWDMA2 [ 2.252543] ata2: EH complete [ 2.264770] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [ 2.265393] ata2.00: failed command: READ DMA [ 2.265815] ata2.00: cmd c8/00:02:00:00:00/00:00:00:00:00/e0 tag 0 dma 1024 in [ 2.265815] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) [ 2.267271] ata2.00: status: { DRDY } [ 2.268133] ata2.00: configured for MWDMA2 [ 2.268534] ata2: EH complete [ 2.268833] SQUASHFS error: Failed to read block 0x0: -5 [ 2.269346] unable to read squashfs_super_block [ 2.269785] VFS: Cannot open root device "sda" or unknown-block(8,0): error -5 [ 2.270481] Please append a correct "root=" boot option; here are the available partitions: [ 2.271284] 0800 262144 sda [ 2.271285] driver: sd [ 2.271881] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,0) [ 2.272673] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 5.7.0-rc4-next-20200507+ #10 [ 2.273527] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 [ 2.274614] Call Trace: [ 2.274861] dump_stack+0x6b/0x83 [ 2.275189] panic+0x102/0x2f3 [ 2.275491] mount_block_root+0x290/0x339 [ 2.275879] prepare_namespace+0x13d/0x16c [ 2.276277] kernel_init_freeable+0x246/0x270 [ 2.276699] ? rdinit_setup+0x28/0x28 [ 2.277056] ? rest_init+0xb0/0xb0 [ 2.277387] kernel_init+0xa/0x110 [ 2.277718] ret_from_fork+0x1f/0x30 [ 2.278414] Kernel Offset: disabled [ 2.278755] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,0) ]--- qemu-system-x86_64: terminating on signal 2 Best, Hui > > Cheers! > > >> // start a QEMU that is get from https://github.com/davidhildenbrand/qemu/tree/virtio-mem-v2 and setup a file as a ide disk. >> /home/teawater/qemu/qemu/x86_64-softmmu/qemu-system-x86_64 -machine pc-i440fx-2.1,accel=kvm,usb=off -cpu host -no-reboot -nographic -device ide-hd,drive=hd -drive if=none,id=hd,file=/home/teawater/old.img,format=raw -kernel /home/teawater/kernel/bk2/arch/x86/boot/bzImage -append "console=ttyS0 root=/dev/sda nokaslr swiotlb=noforce" -m 1g,slots=10,maxmem=2G -smp 1 -s -monitor unix:/home/teawater/qemu/m,server,nowait >> >> // Setup virtio-mem and plug 256m memory in qemu monitor: >> object_add memory-backend-ram,id=mem1,size=256m >> device_add virtio-mem-pci,id=vm0,memdev=mem1 >> qom-set vm0 requested-size 256M >> >> // Go back to the terminal and access file system will got following kernel warning. >> [ 19.515549] pci 0000:00:04.0: [1af4:1015] type 00 class 0x00ff00 >> [ 19.516227] pci 0000:00:04.0: reg 0x10: [io 0x0000-0x007f] >> [ 19.517196] pci 0000:00:04.0: BAR 0: assigned [io 0x1000-0x107f] >> [ 19.517843] virtio-pci 0000:00:04.0: enabling device (0000 -> 0001) >> [ 19.535957] PCI Interrupt Link [LNKD] enabled at IRQ 11 >> [ 19.536507] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver >> [ 19.537528] virtio_mem virtio0: start address: 0x100000000 >> [ 19.538094] virtio_mem virtio0: region size: 0x10000000 >> [ 19.538621] virtio_mem virtio0: device block size: 0x200000 >> [ 19.539186] virtio_mem virtio0: memory block size: 0x8000000 >> [ 19.539752] virtio_mem virtio0: subblock size: 0x400000 >> [ 19.540357] virtio_mem virtio0: plugged size: 0x0 >> [ 19.540834] virtio_mem virtio0: requested size: 0x0 >> [ 20.170441] virtio_mem virtio0: plugged size: 0x0 >> [ 20.170933] virtio_mem virtio0: requested size: 0x10000000 >> [ 20.172247] Built 1 zonelists, mobility grouping on. Total pages: 266012 >> [ 20.172955] Policy zone: Normal >> >> / # ls >> [ 26.724565] ------------[ cut here ]------------ >> [ 26.725047] ata_piix 0000:00:01.1: DMA addr 0x000000010fc14000+49152 overflow (mask ffffffff, bus limit 0). >> [ 26.726024] WARNING: CPU: 0 PID: 179 at /home/teawater/kernel/linux2/kernel/dma/direct.c:364 dma_direct_map_page+0x118/0x130 >> [ 26.727141] Modules linked in: >> [ 26.727456] CPU: 0 PID: 179 Comm: ls Not tainted 5.6.0-rc5-next-20200311+ #9 >> [ 26.728163] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 >> [ 26.729305] RIP: 0010:dma_direct_map_page+0x118/0x130 >> [ 26.729825] Code: 8b 1f e8 3b 70 59 00 48 8d 4c 24 08 48 89 c6 4c 89 2c 24 4d 89 e1 49 89 e8 48 89 da 48 c7 c7 08 6c 34 82 31 c0 e8 d8 8e f7 ff <00 >> [ 26.731683] RSP: 0000:ffffc90000213838 EFLAGS: 00010082 >> [ 26.732205] RAX: 0000000000000000 RBX: ffff88803ebeb1b0 RCX: ffffffff82665148 >> [ 26.732913] RDX: 0000000000000001 RSI: 0000000000000092 RDI: 0000000000000046 >> [ 26.733621] RBP: 000000000000c000 R08: 00000000000001df R09: 00000000000001df >> [ 26.734338] R10: 0000000000000000 R11: ffffc900002135a8 R12: 00000000ffffffff >> [ 26.735054] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88803d55f5b0 >> [ 26.735772] FS: 00000000024e9880(0000) GS:ffff88803ec00000(0000) knlGS:0000000000000000 >> [ 26.736579] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> [ 26.737162] CR2: 00000000005bfc7f CR3: 0000000107e12004 CR4: 0000000000360ef0 >> [ 26.737879] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 >> [ 26.738591] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 >> [ 26.739307] Call Trace: >> [ 26.739564] dma_direct_map_sg+0x64/0xb0 >> [ 26.739969] ? ata_scsi_write_same_xlat+0x350/0x350 >> [ 26.740461] ata_qc_issue+0x214/0x260 >> [ 26.740839] ata_scsi_queuecmd+0x16a/0x490 >> [ 26.741255] scsi_queue_rq+0x679/0xa60 >> [ 26.741639] blk_mq_dispatch_rq_list+0x90/0x510 >> [ 26.742099] ? elv_rb_del+0x1f/0x30 >> [ 26.742456] ? deadline_remove_request+0x6a/0xb0 >> [ 26.742926] blk_mq_do_dispatch_sched+0x78/0x100 >> [ 26.743397] blk_mq_sched_dispatch_requests+0xf9/0x170 >> [ 26.743924] __blk_mq_run_hw_queue+0x7e/0x130 >> [ 26.744365] __blk_mq_delay_run_hw_queue+0x107/0x150 >> [ 26.744874] blk_mq_run_hw_queue+0x61/0x100 >> [ 26.745299] blk_mq_sched_insert_requests+0x71/0x110 >> [ 26.745798] blk_mq_flush_plug_list+0x14b/0x210 >> [ 26.746258] blk_flush_plug_list+0xbf/0xe0 >> [ 26.746675] blk_finish_plug+0x27/0x40 >> [ 26.747056] read_pages+0x7c/0x190 >> [ 26.747399] __do_page_cache_readahead+0x19c/0x1b0 >> [ 26.747886] filemap_fault+0x54e/0x9a0 >> [ 26.748268] ? alloc_set_pte+0x102/0x610 >> [ 26.748673] ? walk_component+0x64/0x2e0 >> [ 26.749072] ? filemap_map_pages+0xfa/0x3f0 >> [ 26.749498] ext4_filemap_fault+0x2c/0x3b >> [ 26.749911] __do_fault+0x38/0xb0 >> [ 26.750251] __handle_mm_fault+0xd2a/0x16d0 >> [ 26.750678] handle_mm_fault+0xe2/0x1f0 >> [ 26.751069] do_page_fault+0x250/0x590 >> [ 26.751448] async_page_fault+0x34/0x40 >> [ 26.751841] RIP: 0033:0x5bfc7f >> [ 26.752155] Code: Bad RIP value. >> [ 26.752481] RSP: 002b:00007ffef0289cd8 EFLAGS: 00010246 >> [ 26.752999] RAX: 0000000000000001 RBX: 00007ffef028af81 RCX: 00007ffef028af84 >> [ 26.753715] RDX: 00007ffef0289e01 RSI: 00007ffef0289ea8 RDI: 0000000000000001 >> [ 26.754424] RBP: 00000000000000ac R08: 0000000000000001 R09: 0000000000000006 >> [ 26.755144] R10: 000000000089fc18 R11: 0000000000000246 R12: 00007ffef0289ea8 >> [ 26.755853] R13: 000000000043a5f0 R14: 0000000000000000 R15: 0000000000000000 >> [ 26.756560] ---[ end trace 23cc3e9021358587 ]--- >> [ 26.778034] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 >> [ 26.778690] ata2.00: failed command: READ DMA >> [ 26.779131] ata2.00: cmd c8/00:e8:92:ad:00/00:00:00:00:00/e0 tag 0 dma 118784 in >> [ 26.779131] res 50/00:00:0a:80:03/00:00:00:00:00/a0 Emask 0x40 (internal error) >> [ 26.780691] ata2.00: status: { DRDY } >> [ 26.781603] ata2.00: configured for MWDMA2 >> [ 26.782034] sd 1:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s >> [ 26.782958] sd 1:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] >> [ 26.783646] sd 1:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command >> [ 26.784321] sd 1:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 ad 92 00 00 e8 00 >> [ 26.785056] blk_update_request: I/O error, dev sda, sector 44434 op 0x0:(READ) flags 0x80700 phys_seg 3 prio class 0 >> [ 26.786118] ata2: EH complete >> [ 26.810033] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 >> [ 26.810690] ata2.00: failed command: READ DMA >> [ 26.811133] ata2.00: cmd c8/00:08:fa:ad:00/00:00:00:00:00/e0 tag 0 dma 4096 in >> [ 26.811133] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) >> [ 26.812681] ata2.00: status: { DRDY } >> [ 26.813569] ata2.00: configured for MWDMA2 >> [ 26.813992] ata2: EH complete >> [ 26.826031] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 >> [ 26.826687] ata2.00: failed command: READ DMA >> [ 26.827131] ata2.00: cmd c8/00:08:fa:ad:00/00:00:00:00:00/e0 tag 0 dma 4096 in >> [ 26.827131] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) >> [ 26.828668] ata2.00: status: { DRDY } >> [ 26.829552] ata2.00: configured for MWDMA2 >> [ 26.829972] ata2: EH complete >> [ 26.842030] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 >> [ 26.842686] ata2.00: failed command: READ DMA >> [ 26.843127] ata2.00: cmd c8/00:08:fa:ad:00/00:00:00:00:00/e0 tag 0 dma 4096 in >> [ 26.843127] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) >> [ 26.844656] ata2.00: status: { DRDY } >> [ 26.845538] ata2.00: configured for MWDMA2 >> [ 26.845961] ata2: EH complete >> [ 26.858030] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 >> [ 26.858690] ata2.00: failed command: READ DMA >> [ 26.859132] ata2.00: cmd c8/00:08:fa:ad:00/00:00:00:00:00/e0 tag 0 dma 4096 in >> [ 26.859132] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) >> [ 26.860656] ata2.00: status: { DRDY } >> [ 26.861542] ata2.00: configured for MWDMA2 >> [ 26.861960] ata2: EH complete >> [ 26.874030] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 >> [ 26.874693] ata2.00: failed command: READ DMA >> [ 26.875131] ata2.00: cmd c8/00:08:fa:ad:00/00:00:00:00:00/e0 tag 0 dma 4096 in >> [ 26.875131] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) >> [ 26.876675] ata2.00: status: { DRDY } >> [ 26.877554] ata2.00: configured for MWDMA2 >> [ 26.877976] ata2: EH complete >> [ 26.890030] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 >> [ 26.890655] ata2.00: failed command: READ DMA >> [ 26.891082] ata2.00: cmd c8/00:08:fa:ad:00/00:00:00:00:00/e0 tag 0 dma 4096 in >> [ 26.891082] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) >> [ 26.892544] ata2.00: status: { DRDY } >> [ 26.893408] ata2.00: configured for MWDMA2 >> [ 26.893812] sd 1:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s >> [ 26.894698] sd 1:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] >> [ 26.895356] sd 1:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command >> [ 26.895993] sd 1:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 ad fa 00 00 08 00 >> [ 26.896693] blk_update_request: I/O error, dev sda, sector 44538 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 >> [ 26.897668] ata2: EH complete >> [ 26.922032] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 >> [ 26.922652] ata2.00: failed command: READ DMA >> [ 26.923080] ata2.00: cmd c8/00:08:fa:ad:00/00:00:00:00:00/e0 tag 0 dma 4096 in >> [ 26.923080] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) >> [ 26.924538] ata2.00: status: { DRDY } >> [ 26.925404] ata2.00: configured for MWDMA2 >> [ 26.925807] ata2: EH complete >> [ 26.938031] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 >> [ 26.938650] ata2.00: failed command: READ DMA >> [ 26.939076] ata2.00: cmd c8/00:08:fa:ad:00/00:00:00:00:00/e0 tag 0 dma 4096 in >> [ 26.939076] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) >> [ 26.940529] ata2.00: status: { DRDY } >> [ 26.941391] ata2.00: configured for MWDMA2 >> [ 26.941793] ata2: EH complete >> [ 26.954031] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 >> [ 26.954652] ata2.00: failed command: READ DMA >> [ 26.955079] ata2.00: cmd c8/00:08:fa:ad:00/00:00:00:00:00/e0 tag 0 dma 4096 in >> [ 26.955079] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) >> [ 26.956536] ata2.00: status: { DRDY } >> [ 26.957400] ata2.00: configured for MWDMA2 >> [ 26.957800] ata2: EH complete >> [ 26.970031] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 >> [ 26.970653] ata2.00: failed command: READ DMA >> [ 26.971079] ata2.00: cmd c8/00:08:fa:ad:00/00:00:00:00:00/e0 tag 0 dma 4096 in >> [ 26.971079] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) >> [ 26.972536] ata2.00: status: { DRDY } >> [ 26.973402] ata2.00: configured for MWDMA2 >> [ 26.973804] ata2: EH complete >> [ 26.986030] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 >> [ 26.986654] ata2.00: failed command: READ DMA >> [ 26.987082] ata2.00: cmd c8/00:08:fa:ad:00/00:00:00:00:00/e0 tag 0 dma 4096 in >> [ 26.987082] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) >> [ 26.988541] ata2.00: status: { DRDY } >> [ 26.989406] ata2.00: configured for MWDMA2 >> [ 26.989807] ata2: EH complete >> [ 27.002031] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 >> [ 27.002653] ata2.00: failed command: READ DMA >> [ 27.003083] ata2.00: cmd c8/00:08:fa:ad:00/00:00:00:00:00/e0 tag 0 dma 4096 in >> [ 27.003083] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) >> [ 27.004541] ata2.00: status: { DRDY } >> [ 27.005404] ata2.00: configured for MWDMA2 >> [ 27.005806] sd 1:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s >> [ 27.006688] sd 1:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] >> [ 27.007346] sd 1:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command >> [ 27.007982] sd 1:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 ad fa 00 00 08 00 >> [ 27.008680] blk_update_request: I/O error, dev sda, sector 44538 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 >> [ 27.009649] ata2: EH complete >> Bus error >> >> I cannot reproduce this warning with set file as nvdimm with following command. >> sudo /home/teawater/qemu/qemu/x86_64-softmmu/qemu-system-x86_64 -machine pc,accel=kvm,kernel_irqchip,nvdimm -no-reboot -nographic -kernel /home/teawater/kernel/bk2/arch/x86/boot/bzImage -append "console=ttyS0 root=/dev/pmem0 swiotlb=noforce" -m 1g,slots=1,maxmem=2G -smp 1 -device nvdimm,id=nv0,memdev=mem0 -object memory-backend-file,id=mem0,mem-path=/home/teawater/old.img,size=268435456 -monitor unix:/home/teawater/qemu/m,server,nowait >> >> Best, >> Hui > > > -- > Thanks, > > David / dhildenb