Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751204AbdIJGsL (ORCPT ); Sun, 10 Sep 2017 02:48:11 -0400 Received: from mx3.molgen.mpg.de ([141.14.17.11]:33301 "EHLO mx1.molgen.mpg.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751004AbdIJGsJ (ORCPT ); Sun, 10 Sep 2017 02:48:09 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Date: Sun, 10 Sep 2017 08:48:06 +0200 From: Paul Menzel To: x86@kernel.org Cc: linux-kernel@vger.kernel.org, Andy Lutomirski Subject: WARNING: CPU: 1 PID: 0 at arch/x86/mm/tlb.c:237 initialize_tlbstate_and_flush+0x120/0x130 Organization: =?UTF-8?Q?Max-Planck-Institut_f=C3=BCr_molekulare_Genetik?= Message-ID: <207325281bb02ccd9a230ea38255de08@molgen.mpg.de> User-Agent: Roundcube Webmail/1.1.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 12283 Lines: 255 Dear Linux folks, With Linux built from commit 4dfc2788033d (Merge tag 'iommu-updates-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu), I get the warning below on a Lenovo X60t with a 32-bit CPU. ``` $ dmesg [ 0.000000] Linux version 4.13.0+ (root@d44d03a193d6) (gcc version 6.3.0 20170516 (Debian 6.3.0-18)) #126 SMP Sun Sep 10 06:40:58 UTC 2017 [ 0.000000] Disabled fast string operations [ 0.000000] x86/fpu: x87 FPU will use FXSAVE [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x0000000000000fff] type 16 [ 0.000000] BIOS-e820: [mem 0x0000000000001000-0x000000000009ffff] usable [ 0.000000] BIOS-e820: [mem 0x00000000000c0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007f703fff] usable [ 0.000000] BIOS-e820: [mem 0x000000007f704000-0x000000007f7fffff] type 16 [ 0.000000] BIOS-e820: [mem 0x000000007f800000-0x000000007fffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000f0000000-0x00000000f3ffffff] reserved [ 0.000000] Notice: NX (Execute Disable) protection cannot be enabled: non-PAE kernel! [ 0.000000] random: fast init done [ 0.000000] SMBIOS 2.7 present. [ 0.000000] DMI: LENOVO 636338U/636338U, BIOS CBET4000 TIMELESS 01/01/1970 [ 0.000000] tsc: Fast TSC calibration using PIT [ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable [ 0.000000] e820: last_pfn = 0x7f704 max_arch_pfn = 0x100000 [ 0.000000] MTRR default type: uncachable [ 0.000000] MTRR fixed ranges enabled: [ 0.000000] 00000-9FFFF write-back [ 0.000000] A0000-BFFFF uncachable [ 0.000000] C0000-FFFFF write-back [ 0.000000] MTRR variable ranges enabled: [ 0.000000] 0 base 000000000 mask 080000000 write-back [ 0.000000] 1 base 07F800000 mask 0FF800000 uncachable [ 0.000000] 2 base 0D0000000 mask 0F0000000 write-combining [ 0.000000] 3 disabled [ 0.000000] 4 disabled [ 0.000000] 5 disabled [ 0.000000] 6 disabled [ 0.000000] 7 disabled [ 0.000000] x86/PAT: PAT not supported by CPU. [ 0.000000] x86/PAT: Configuration [0-7]: WB WT UC- UC WB WT UC- UC [ 0.000000] found SMP MP-table at [mem 0x000f0400-0x000f040f] mapped at [ffd0f400] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] initial memory mapped: [mem 0x00000000-0x127fffff] [ 0.000000] Base memory trampoline at [c009b000] 9b000 size 16384 [ 0.000000] BRK [0x12478000, 0x12478fff] PGTABLE [ 0.000000] RAMDISK: [mem 0x34827000-0x3640afff] [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F0800 000024 (v02 CORE ) [ 0.000000] ACPI: XSDT 0x000000007F7150E0 000054 (v01 CORE COREBOOT 00000000 CORE 00000000) [ 0.000000] ACPI: FACP 0x000000007F718190 0000F4 (v04 CORE COREBOOT 00000000 CORE 00000000) [ 0.000000] ACPI: DSDT 0x000000007F715280 002F10 (v03 COREv4 COREBOOT 20090419 INTL 20160831) [ 0.000000] ACPI: FACS 0x000000007F715240 000040 [ 0.000000] ACPI: FACS 0x000000007F715240 000040 [ 0.000000] ACPI: SSDT 0x000000007F718290 000524 (v02 CORE COREBOOT 0000002A CORE 0000002A) [ 0.000000] ACPI: MCFG 0x000000007F7187C0 00003C (v01 CORE COREBOOT 00000000 CORE 00000000) [ 0.000000] ACPI: TCPA 0x000000007F718800 000032 (v02 CORE COREBOOT 00000000 CORE 00000000) [ 0.000000] ACPI: APIC 0x000000007F718840 000068 (v01 CORE COREBOOT 00000000 CORE 00000000) [ 0.000000] ACPI: HPET 0x000000007F7188B0 000038 (v01 CORE COREBOOT 00000000 CORE 00000000) [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] 1151MB HIGHMEM available. [ 0.000000] 887MB LOWMEM available. [ 0.000000] mapped low ram: 0 - 377fe000 [ 0.000000] low ram: 0 - 377fe000 [ 0.000000] BRK [0x12479000, 0x12479fff] PGTABLE [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] Normal [mem 0x0000000001000000-0x00000000377fdfff] [ 0.000000] HighMem [mem 0x00000000377fe000-0x000000007f703fff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009ffff] [ 0.000000] node 0: [mem 0x0000000000100000-0x000000007f703fff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000007f703fff] [ 0.000000] On node 0 totalpages: 521891 [ 0.000000] DMA zone: 36 pages used for memmap [ 0.000000] DMA zone: 0 pages reserved [ 0.000000] DMA zone: 3999 pages, LIFO batch:0 [ 0.000000] Normal zone: 1962 pages used for memmap [ 0.000000] Normal zone: 223230 pages, LIFO batch:31 [ 0.000000] HighMem zone: 294662 pages, LIFO batch:31 [ 0.000000] Using APIC driver default [ 0.000000] Reserving Intel graphics memory at 0x7f800000-0x7fffffff [ 0.000000] ACPI: PM-Timer IO Port: 0x508 [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1]) [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 high edge) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: IRQ0 used by override. [ 0.000000] ACPI: IRQ9 used by override. [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000bffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000c0000-0x000fffff] [ 0.000000] e820: [mem 0x80000000-0xefffffff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on bare hardware [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns [ 0.000000] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] percpu: Embedded 21 pages/cpu @f65d1000 s56844 r0 d29172 u86016 [ 0.000000] pcpu-alloc: s56844 r0 d29172 u86016 alloc=21*4096 [ 0.000000] pcpu-alloc: [0] 0 [0] 1 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 519893 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-4.13.0+ root=UUID=0198e82a-32df-4f18-bec0-3e08802b084d ro quiet noisapnp pcie_aspm=force pcie_aspm.policy=powersave nmi_watchdog=0 iomem=relaxed [ 0.000000] PCIe ASPM is forcibly enabled [ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes) [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) [ 0.000000] Initializing CPU#0 [ 0.000000] Initializing HighMem for node 0 (000377fe:0007f704) [ 0.000000] Initializing Movable for node 0 (00000000:00000000) [ 0.000000] Memory: 2028788K/2087564K available (6300K kernel code, 590K rwdata, 2248K rodata, 744K init, 444K bss, 58776K reserved, 0K cma-reserved, 1178648K highmem) [ 0.000000] virtual kernel memory layout: fixmap : 0xfff0e000 - 0xfffff000 ( 964 kB) pkmap : 0xff800000 - 0xffc00000 (4096 kB) vmalloc : 0xf7ffe000 - 0xff7fe000 ( 120 MB) lowmem : 0xc0000000 - 0xf77fe000 ( 887 MB) .init : 0xd22fd000 - 0xd23b7000 ( 744 kB) .data : 0xd2027125 - 0xd22eeba0 (2846 kB) .text : 0xd1a00000 - 0xd2027125 (6300 kB) [ 0.000000] Checking if this processor honours the WP bit even in supervisor mode...Ok. [ 0.000000] ftrace: allocating 26613 entries in 52 pages [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 0.000000] NR_IRQS: 2304, nr_irqs: 440, preallocated irqs: 16 [ 0.000000] CPU 0 irqstacks, hard=f44a6000 soft=f44a8000 [ 0.000000] Console: colour dummy device 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484882848 ns [ 0.000000] hpet clockevent registered [ 0.000000] tsc: Fast TSC calibration using PIT [ 0.004000] tsc: Detected 1662.445 MHz processor [ 0.004000] Calibrating delay loop (skipped), value calculated using timer frequency.. 3324.89 BogoMIPS (lpj=6649780) [ 0.004000] pid_max: default: 32768 minimum: 301 [ 0.004000] ACPI: Core revision 20170728 [ 0.008295] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 0.008349] Security Framework initialized [ 0.008351] Yama: becoming mindful. [ 0.008360] AppArmor: AppArmor disabled by boot time parameter [ 0.008386] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.008391] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.008741] Disabled fast string operations [ 0.008744] CPU: Physical Processor ID: 0 [ 0.008745] CPU: Processor Core ID: 0 [ 0.008754] mce: CPU supports 6 MCE banks [ 0.008762] CPU0: Thermal monitoring enabled (TM2) [ 0.008768] process: using mwait in idle threads [ 0.008776] Last level iTLB entries: 4KB 128, 2MB 0, 4MB 2 [ 0.008777] Last level dTLB entries: 4KB 128, 2MB 0, 4MB 8, 1GB 0 [ 0.008895] Freeing SMP alternatives memory: 28K [ 0.010734] smpboot: Max logical packages: 1 [ 0.010741] Enabling APIC mode: Flat. Using 1 I/O APICs [ 0.011184] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.052000] smpboot: CPU0: Intel(R) Core(TM) Duo CPU L2400 @ 1.66GHz (family: 0x6, model: 0xe, stepping: 0xc) [ 0.052000] Performance Events: Core events, core PMU driver. [ 0.052000] ... version: 1 [ 0.052000] ... bit width: 40 [ 0.052000] ... generic registers: 2 [ 0.052000] ... value mask: 000000ffffffffff [ 0.052000] ... max period: 000000007fffffff [ 0.052000] ... fixed-purpose events: 0 [ 0.052000] ... event mask: 0000000000000003 [ 0.052000] Hierarchical SRCU implementation. [ 0.052000] smp: Bringing up secondary CPUs ... [ 0.052000] CPU 1 irqstacks, hard=f4530000 soft=f4532000 [ 0.052000] x86: Booting SMP configuration: [ 0.052000] .... node #0, CPUs: #1 [ 0.004000] Initializing CPU#1 [ 0.004000] ------------[ cut here ]------------ [ 0.004000] WARNING: CPU: 1 PID: 0 at arch/x86/mm/tlb.c:237 initialize_tlbstate_and_flush+0x120/0x130 [ 0.004000] Modules linked in: [ 0.004000] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.13.0+ #126 [ 0.004000] Hardware name: LENOVO 636338U/636338U, BIOS CBET4000 TIMELESS 01/01/1970 [ 0.004000] task: f4513380 task.stack: f4518000 [ 0.004000] EIP: initialize_tlbstate_and_flush+0x120/0x130 [ 0.004000] EFLAGS: 00210006 CPU: 1 [ 0.004000] EAX: 123be000 EBX: d2292f60 ECX: d23c1000 EDX: 123c1000 [ 0.004000] ESI: 00000000 EDI: 00000000 EBP: f4519f60 ESP: f4519f50 [ 0.004000] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 0.004000] CR0: 80050033 CR2: 00000000 CR3: 123be000 CR4: 00000690 [ 0.004000] Call Trace: [ 0.004000] cpu_init+0xcd/0x260 [ 0.004000] start_secondary+0x17/0x1a0 [ 0.004000] startup_32_smp+0x164/0x166 [ 0.004000] Code: 00 00 89 c8 50 9d 8d 74 26 00 83 c3 10 81 fb 4c 60 3b d2 75 c9 58 5b 5e 5f 5d c3 0f ff e9 41 ff ff ff 89 f6 8d bc 27 00 00 00 00 <0f> ff e9 13 ff ff ff 89 f6 8d bc 27 00 00 00 00 3e 8d 74 26 00 [ 0.004000] ---[ end trace 04b7fb19fe13e425 ]--- [ 0.004000] Disabled fast string operations [ 0.130040] smp: Brought up 1 node, 2 CPUs [ 0.130040] smpboot: Total of 2 processors activated (6649.87 BogoMIPS) [ 0.130040] devtmpfs: initialized [ 0.132194] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns […] ``` Kind regards, Paul