From: Sachin Sant Subject: EXT4: kernel BUG at fs/ext4/mballoc.c:1721! Date: Thu, 03 Sep 2009 13:46:08 +0530 Message-ID: <4A9F7B48.9010903@in.ibm.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="------------050200060807080208090304" Cc: "Aneesh Kumar K.V" , Theodore Tso To: linux-ext4@vger.kernel.org Return-path: Received: from e28smtp02.in.ibm.com ([59.145.155.2]:46221 "EHLO e28smtp02.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752141AbZICIQP (ORCPT ); Thu, 3 Sep 2009 04:16:15 -0400 Received: from d28relay01.in.ibm.com (d28relay01.in.ibm.com [9.184.220.58]) by e28smtp02.in.ibm.com (8.14.3/8.13.1) with ESMTP id n838GABU017052 for ; Thu, 3 Sep 2009 13:46:10 +0530 Received: from d28av03.in.ibm.com (d28av03.in.ibm.com [9.184.220.65]) by d28relay01.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id n838GAaG2191492 for ; Thu, 3 Sep 2009 13:46:10 +0530 Received: from d28av03.in.ibm.com (loopback [127.0.0.1]) by d28av03.in.ibm.com (8.14.3/8.13.1/NCO v10.0 AVout) with ESMTP id n838G9Ye024361 for ; Thu, 3 Sep 2009 18:16:10 +1000 Sender: linux-ext4-owner@vger.kernel.org List-ID: This is a multi-part message in MIME format. --------------050200060807080208090304 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit While executing FS resize test against ext4 on a 4-way POWER6 box with 2.6.31-rc8 kernel ran into following bug. ------------[ cut here ]------------ cpu 0x2: Vector: 700 (Program Check) at [c0000000f963ece0] pc: c000000000264d80: .ext4_mb_good_group+0x54/0x15c lr: c00000000026c9b0: .ext4_mb_regular_allocator+0x278/0x44c sp: c0000000f963ef60 msr: 8000000000029032 current = 0xc000000047b635a0 paca = 0xc000000000b62a00 pid = 32202, comm = dd kernel BUG at fs/ext4/mballoc.c:1721! enter ? for help [link register ] c00000000026c9b0 .ext4_mb_regular_allocator+0x278/0x44c [c0000000f963ef60] c00000000026c99c .ext4_mb_regular_allocator+0x264/0x44c (unreliable) [c0000000f963f090] c00000000026cde0 .ext4_mb_new_blocks+0x25c/0x5b0 [c0000000f963f170] c000000000263260 .ext4_ext_get_blocks+0xd18/0xf2c [c0000000f963f2f0] c0000000002404a8 .ext4_get_blocks+0x1b8/0x438 [c0000000f963f3c0] c000000000241d8c .ext4_get_block+0xe8/0x15c [c0000000f963f480] c00000000018e1c0 .__block_prepare_write+0x210/0x4b0 [c0000000f963f5c0] c00000000018e698 .block_write_begin+0xa8/0x13c [c0000000f963f680] c000000000243be4 .ext4_write_begin+0x198/0x324 [c0000000f963f790] c000000000112e50 .generic_file_buffered_write+0x140/0x37c [c0000000f963f8d0] c00000000011364c .__generic_file_aio_write_nolock+0x37c/0x3e0 [c0000000f963f9d0] c0000000001140e0 .generic_file_aio_write+0x88/0x120 [c0000000f963fa90] c000000000239250 .ext4_file_write+0xe4/0x1a4 [c0000000f963fb40] c00000000015e1f4 .do_sync_write+0xcc/0x130 [c0000000f963fce0] c00000000015ef44 .vfs_write+0xd0/0x1dc [c0000000f963fd80] c00000000015f158 .SyS_write+0x58/0xa0 [c0000000f963fe30] c000000000008534 syscall_exit+0x0/0x40 --- Exception: c01 (System Call) at 00000fff8fd1a8f8 SP (fffc6270e00) is in userspace During the first 3 runs i did not see this issue, so might not be able to recreate this again. I have captured the dmesg log and have attached it. ext4 fs was created and mounted using : mkfs.ext4 -b 1024 /dev/sda4 3943948 mount -t ext4 -o errors=panic,data=journal /dev/sda4 /mnt/tmp/ The corresponding c code is : 1718 struct ext4_group_info *grp = ext4_get_group_info(ac->ac_sb, group); 1719 1720 BUG_ON(cr < 0 || cr >= 4); 1721 BUG_ON(EXT4_MB_GRP_NEED_INIT(grp)); 1722 ^^^^^^^^^^^^^^^^^^^^ 1723 free = grp->bb_free; Thanks -Sachin -- --------------------------------- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India --------------------------------- --------------050200060807080208090304 Content-Type: text/plain; name="dmesg-log" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="dmesg-log" 2:mon> dl <4>Crash kernel location must be 0x2000000 <6>Reserving 256MB of memory at 32MB for crashkernel (System RAM: 4096MB) <6>Phyp-dump disabled at boot time <6>Using pSeries machine description <7>Page orders: linear mapping = 24, virtual = 16, io = 12, vmemmap = 24 <6>Using 1TB segments <4>Found initrd at 0xc0000000034d0000:0xc000000003c92232 <6>console [udbg0] enabled <6>Partition configured for 4 cpus. <6>CPU maps initialized for 2 threads per core <7> (thread shift is 1) <4>Starting Linux PPC64 #3 SMP Thu Sep 3 09:17:40 IST 2009 <4>----------------------------------------------------- <4>ppc64_pft_size = 0x1a <4>physicalMemorySize = 0x100000000 <4>htab_hash_mask = 0x7ffff <4>----------------------------------------------------- <6>Initializing cgroup subsys cpuset <6>Initializing cgroup subsys cpu <5>Linux version 2.6.31-rc8 (root@llm62) (gcc version 4.3.2 [gcc-4_3-branch revision 141291] (SUSE Linux) ) #3 SMP Thu Sep 3 09:17:40 IST 2009 <4>[boot]0012 Setup Arch <7>Node 0 Memory: <7>Node 1 Memory: 0x0-0x100000000 <4>EEH: No capable adapters found <6>PPC64 nvram contains 15360 bytes <7>Using shared processor idle loop <4>Zone PFN ranges: <4> DMA 0x00000000 -> 0x00010000 <4> Normal 0x00010000 -> 0x00010000 <4>Movable zone start PFN for each node <4>early_node_map[1] active PFN ranges <4> 1: 0x00000000 -> 0x00010000 <4>Could not find start_pfn for node 0 <7>On node 0 totalpages: 0 <7>On node 1 totalpages: 65536 <7> DMA zone: 56 pages used for memmap <7> DMA zone: 0 pages reserved <7> DMA zone: 65480 pages, LIFO batch:1 <4>[boot]0015 Setup Done <4>Built 2 zonelists in Node order, mobility grouping on. Total pages: 65480 <4>Policy zone: DMA <5>Kernel command line: root=/dev/sda5 sysrq=1 insmod=sym53c8xx insmod=ipr crashkernel=512M-:256M <4>PID hash table entries: 4096 (order: 12, 32768 bytes) <4>freeing bootmem node 1 <6>Memory: 3898432k/4194304k available (8640k kernel code, 295872k reserved, 2048k data, 4267k bss, 512k init) <6>SLUB: Genslabs=18, HWalign=128, Order=0-3, MinObjects=0, CPUs=4, Nodes=16 <6>Hierarchical RCU implementation. <6>NR_IRQS:512 <4>[boot]0020 XICS Init <4>[boot]0021 XICS Done <7>pic: no ISA interrupt controller <7>time_init: decrementer frequency = 512.000000 MHz <7>time_init: processor frequency = 4704.000000 MHz <6>clocksource: timebase mult[7d0000] shift[22] registered <7>clockevent: decrementer mult[83126e97] shift[32] cpu[0] <4>Console: colour dummy device 80x25 <6>console handover: boot [udbg0] -> real [hvc0] <6>allocated 2621440 bytes of page_cgroup <6>please try 'cgroup_disable=memory' option if you don't want memory cgroups <6>Security Framework initialized <6>SELinux: Disabled at boot. <6>Dentry cache hash table entries: 524288 (order: 6, 4194304 bytes) <6>Inode-cache hash table entries: 262144 (order: 5, 2097152 bytes) <4>Mount-cache hash table entries: 4096 <6>Initializing cgroup subsys ns <6>Initializing cgroup subsys cpuacct <6>Initializing cgroup subsys memory <6>Initializing cgroup subsys devices <6>Initializing cgroup subsys freezer <7>irq: irq 2 on host null mapped to virtual irq 16 <7>clockevent: decrementer mult[83126e97] shift[32] cpu[1] <4>Processor 1 found. <7>clockevent: decrementer mult[83126e97] shift[32] cpu[2] <4>Processor 2 found. <7>clockevent: decrementer mult[83126e97] shift[32] cpu[3] <4>Processor 3 found. <6>Brought up 4 CPUs <7>Node 0 CPUs: 0-3 <7>Node 1 CPUs: <7>CPU0 attaching sched-domain: <7> domain 0: span 0-1 level SIBLING <7> groups: 0 1 <7> domain 1: span 0-3 level CPU <7> groups: 0-1 2-3 <7> domain 2: span 0-3 level NODE <7> groups: 0-3 (__cpu_power = 2048) <7>CPU1 attaching sched-domain: <7> domain 0: span 0-1 level SIBLING <7> groups: 1 0 <7> domain 1: span 0-3 level CPU <7> groups: 0-1 2-3 <7> domain 2: span 0-3 level NODE <7> groups: 0-3 (__cpu_power = 2048) <7>CPU2 attaching sched-domain: <7> domain 0: span 2-3 level SIBLING <7> groups: 2 3 <7> domain 1: span 0-3 level CPU <7> groups: 2-3 0-1 <7> domain 2: span 0-3 level NODE <7> groups: 0-3 (__cpu_power = 2048) <7>CPU3 attaching sched-domain: <7> domain 0: span 2-3 level SIBLING <7> groups: 3 2 <7> domain 1: span 0-3 level CPU <7> groups: 2-3 0-1 <7> domain 2: span 0-3 level NODE <7> groups: 0-3 (__cpu_power = 2048) <6>NET: Registered protocol family 16 <6>IBM eBus Device Driver <6>POWER6 performance monitor hardware support registered <6>PCI: Probing PCI hardware <7>PCI: Probing PCI hardware done <4>bio: create slab at 0 <6>usbcore: registered new interface driver usbfs <6>usbcore: registered new interface driver hub <6>usbcore: registered new device driver usb <6>NET: Registered protocol family 2 <6>IP route cache hash table entries: 32768 (order: 2, 262144 bytes) <6>TCP established hash table entries: 131072 (order: 5, 2097152 bytes) <6>TCP bind hash table entries: 65536 (order: 4, 1048576 bytes) <6>TCP: Hash tables configured (established 131072 bind 65536) <6>TCP reno registered <6>NET: Registered protocol family 1 <6>Unpacking initramfs... <7>Switched to high resolution mode on CPU 0 <7>Switched to high resolution mode on CPU 1 <7>Switched to high resolution mode on CPU 2 <7>Switched to high resolution mode on CPU 3 <7>irq: irq 655360 on host null mapped to virtual irq 17 <7>irq: irq 655362 on host null mapped to virtual irq 18 <6>IOMMU table initialized, virtual merging enabled <7>irq: irq 589825 on host null mapped to virtual irq 19 <7>RTAS daemon started <7>RTAS: event: 62, Type: Platform Error, Severity: 2 <6>audit: initializing netlink socket (disabled) <5>type=2000 audit(1251952168.240:1): initialized <6>HugeTLB registered 16 MB page size, pre-allocated 0 pages <6>HugeTLB registered 16 GB page size, pre-allocated 0 pages <5>VFS: Disk quotas dquot_6.5.2 <4>Dquot-cache hash table entries: 8192 (order 0, 65536 bytes) <6>msgmni has been set to 7612 <6>alg: No test for stdrng (krng) <6>Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254) <6>io scheduler noop registered <6>io scheduler anticipatory registered <6>io scheduler deadline registered <6>io scheduler cfq registered (default) <6>pci_hotplug: PCI Hot Plug PCI Core version: 0.5 <6>rpaphp: RPA HOT Plug PCI Controller Driver version: 0.1 <7>vio_register_driver: driver hvc_console registering <7>HVSI: registered 0 devices <6>Generic RTC Driver v1.07 <6>Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled <6>pmac_zilog: 0.6 (Benjamin Herrenschmidt ) <6>input: Macintosh mouse button emulation as /devices/virtual/input/input0 <6>Uniform Multi-Platform E-IDE driver <6>ide-gd driver 1.18 <6>IBM eHEA ethernet device driver (Release EHEA_0102) <7>irq: irq 590080 on host null mapped to virtual irq 256 <6>ehea: eth0: Jumbo frames are disabled <6>ehea: eth0 -> logical port id #2 <6>ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver <6>ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver <6>mice: PS/2 mouse device common for all mice <6>EDAC MC: Ver: 2.1.0 Aug 31 2009 <6>usbcore: registered new interface driver hiddev <6>usbcore: registered new interface driver usbhid <6>usbhid: v2.6:USB HID core driver <6>TCP cubic registered <6>NET: Registered protocol family 15 <4>registered taskstats version 1 <4>Freeing unused kernel memory: 512k freed <6>SysRq : Changing Loglevel <4>Loglevel set to 1 <5>SCSI subsystem initialized <7>vio_register_driver: driver ibmvscsi registering <6>ibmvscsi 30000002: SRP_VERSION: 16.a <6>scsi0 : IBM POWER Virtual SCSI Adapter 1.5.8 <6>ibmvscsi 30000002: partner initialization complete <6>ibmvscsi 30000002: host srp version: 16.a, host partition VIO (1), OS 3, max io 1048576 <3>ibmvscsi 30000002: fast_fail not supported in server <6>ibmvscsi 30000002: Client reserve enabled <6>ibmvscsi 30000002: sent SRP login <6>ibmvscsi 30000002: SRP_LOGIN succeeded <5>scsi 0:0:1:0: Direct-Access AIX VDASD 0001 PQ: 0 ANSI: 3 <6>udevd version 128 started <5>sd 0:0:1:0: [sda] 167772160 512-byte logical blocks: (85.8 GB/80.0 GiB) <5>sd 0:0:1:0: [sda] Write Protect is off <7>sd 0:0:1:0: [sda] Mode Sense: 17 00 00 08 <5>sd 0:0:1:0: [sda] Cache data unavailable <3>sd 0:0:1:0: [sda] Assuming drive cache: write through <5>sd 0:0:1:0: [sda] Cache data unavailable <3>sd 0:0:1:0: [sda] Assuming drive cache: write through <6> sda: sda1 sda2 < sda5 > sda3 sda4 <5>sd 0:0:1:0: [sda] Cache data unavailable <3>sd 0:0:1:0: [sda] Assuming drive cache: write through <5>sd 0:0:1:0: [sda] Attached SCSI disk <6>kjournald starting. Commit interval 5 seconds <6>EXT3 FS on sda5, internal journal <6>EXT3-fs: mounted filesystem with writeback data mode. <6>udevd version 128 started <5>sd 0:0:1:0: Attached scsi generic sg0 type 0 <6>Adding 1044096k swap on /dev/sda3. Priority:-1 extents:1 across:1044096k <6>device-mapper: uevent: version 1.0.3 <6>device-mapper: ioctl: 4.15.0-ioctl (2009-04-01) initialised: dm-devel@redhat.com <6>loop: module loaded <6>fuse init (API version 7.12) <6>ehea: eth0: Physical port up <6>ehea: External switch port is backup port <7>irq: irq 780 on host null mapped to virtual irq 268 <7>irq: irq 781 on host null mapped to virtual irq 269 <6>NET: Registered protocol family 10 <6>lo: Disabled Privacy Extensions <7>eth0: no IPv6 routers present <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 2369, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <6>EXT4-fs (sda4): delayed allocation enabled <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with ordered data mode <6>EXT4-fs: mballoc: 0 blocks 0 reqs (0 success) <6>EXT4-fs: mballoc: 0 extents scanned, 0 goal hits, 0 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 0 generated and it took 0 <6>EXT4-fs: mballoc: 0 preallocated, 0 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 2421, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <6>EXT4-fs (sda4): delayed allocation enabled <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with ordered data mode <6>EXT4-fs: mballoc: 6244531 blocks 10745 reqs (2595 success) <6>EXT4-fs: mballoc: 26476 extents scanned, 2300 goal hits, 4471 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 896 generated and it took 150107 <6>EXT4-fs: mballoc: 6526653 preallocated, 6273745 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 2496, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <4>EXT4-fs (sda4): Ignoring delalloc option - requested data journaling mode <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with journalled data mode <6>EXT4-fs: mballoc: 607646 blocks 13911 reqs (1584 success) <6>EXT4-fs: mballoc: 82962 extents scanned, 2609 goal hits, 6966 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 56 generated and it took 25783 <6>EXT4-fs: mballoc: 3006529 preallocated, 1982560 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 2591, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with ordered data mode <6>EXT4-fs: mballoc: 590599 blocks 13721 reqs (1511 success) <6>EXT4-fs: mballoc: 84253 extents scanned, 2582 goal hits, 6916 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 56 generated and it took 24777 <6>EXT4-fs: mballoc: 2930797 preallocated, 1924365 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 2666, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <4>EXT4-fs (sda4): Ignoring delalloc option - requested data journaling mode <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with journalled data mode <6>EXT4-fs: mballoc: 2372555 blocks 14001 reqs (1494 success) <6>EXT4-fs: mballoc: 32852 extents scanned, 2406 goal hits, 7468 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 896 generated and it took 150887 <6>EXT4-fs: mballoc: 11110121 preallocated, 7007315 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 2761, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with ordered data mode <6>EXT4-fs: mballoc: 2353859 blocks 14033 reqs (1473 success) <6>EXT4-fs: mballoc: 33436 extents scanned, 2457 goal hits, 7511 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 864 generated and it took 143955 <6>EXT4-fs: mballoc: 10936855 preallocated, 6890516 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 2836, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <6>EXT4-fs (sda4): delayed allocation enabled <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with ordered data mode <6>EXT4-fs: mballoc: 1560428 blocks 10526 reqs (2610 success) <6>EXT4-fs: mballoc: 71851 extents scanned, 2052 goal hits, 4218 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 56 generated and it took 24738 <6>EXT4-fs: mballoc: 1778678 preallocated, 1722174 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 2963, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <6>EXT4-fs (sda4): delayed allocation enabled <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with ordered data mode <6>EXT4-fs: mballoc: 0 blocks 0 reqs (0 success) <6>EXT4-fs: mballoc: 0 extents scanned, 0 goal hits, 0 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 0 generated and it took 0 <6>EXT4-fs: mballoc: 0 preallocated, 0 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 2988, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <6>EXT4-fs (sda4): delayed allocation enabled <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with ordered data mode <6>EXT4-fs: mballoc: 6238187 blocks 10560 reqs (2618 success) <6>EXT4-fs: mballoc: 25763 extents scanned, 2294 goal hits, 4393 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 896 generated and it took 148384 <6>EXT4-fs: mballoc: 6413426 preallocated, 6138288 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 3065, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <6>EXT4-fs (sda4): delayed allocation enabled <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with ordered data mode <6>EXT4-fs: mballoc: 6010491 blocks 7217 reqs (4585 success) <6>EXT4-fs: mballoc: 161881 extents scanned, 2299 goal hits, 3097 2^N hits, 747 breaks, 74 lost <6>EXT4-fs: mballoc: 4554 generated and it took 1320519 <6>EXT4-fs: mballoc: 3711031 preallocated, 195203 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 23415, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <4>EXT4-fs (sda4): Ignoring delalloc option - requested data journaling mode <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with journalled data mode <6>EXT4-fs: mballoc: 0 blocks 0 reqs (0 success) <6>EXT4-fs: mballoc: 0 extents scanned, 0 goal hits, 0 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 0 generated and it took 0 <6>EXT4-fs: mballoc: 0 preallocated, 0 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 23440, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <4>EXT4-fs (sda4): Ignoring delalloc option - requested data journaling mode <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with journalled data mode <6>EXT4-fs: mballoc: 594416 blocks 13850 reqs (1513 success) <6>EXT4-fs: mballoc: 81136 extents scanned, 2608 goal hits, 7019 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 56 generated and it took 24638 <6>EXT4-fs: mballoc: 2958282 preallocated, 1948161 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 23517, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <4>EXT4-fs (sda4): Ignoring delalloc option - requested data journaling mode <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with journalled data mode <6>EXT4-fs: mballoc: 1399 blocks 1399 reqs (0 success) <6>EXT4-fs: mballoc: 1399 extents scanned, 68 goal hits, 1331 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 88 generated and it took 50539 <6>EXT4-fs: mballoc: 2303933 preallocated, 0 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 11506, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with ordered data mode <6>EXT4-fs: mballoc: 0 blocks 0 reqs (0 success) <6>EXT4-fs: mballoc: 0 extents scanned, 0 goal hits, 0 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 0 generated and it took 0 <6>EXT4-fs: mballoc: 0 preallocated, 0 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 11531, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with ordered data mode <6>EXT4-fs: mballoc: 581002 blocks 13862 reqs (1523 success) <6>EXT4-fs: mballoc: 83828 extents scanned, 2601 goal hits, 7021 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 56 generated and it took 24906 <6>EXT4-fs: mballoc: 2962458 preallocated, 1945571 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 11649, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with ordered data mode <6>EXT4-fs: mballoc: 1399 blocks 1399 reqs (0 success) <6>EXT4-fs: mballoc: 1399 extents scanned, 69 goal hits, 1330 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 88 generated and it took 50888 <6>EXT4-fs: mballoc: 2303933 preallocated, 0 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 31982, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <4>EXT4-fs (sda4): Ignoring delalloc option - requested data journaling mode <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with journalled data mode <6>EXT4-fs: mballoc: 0 blocks 0 reqs (0 success) <6>EXT4-fs: mballoc: 0 extents scanned, 0 goal hits, 0 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 0 generated and it took 0 <6>EXT4-fs: mballoc: 0 preallocated, 0 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 32007, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <4>EXT4-fs (sda4): Ignoring delalloc option - requested data journaling mode <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with journalled data mode <6>EXT4-fs: mballoc: 2347542 blocks 14187 reqs (1540 success) <6>EXT4-fs: mballoc: 33559 extents scanned, 2535 goal hits, 7553 2^N hits, 0 breaks, 0 lost <6>EXT4-fs: mballoc: 896 generated and it took 149256 <6>EXT4-fs: mballoc: 11009673 preallocated, 6901648 discarded <6>EXT4-fs (sda4): barriers enabled <6>kjournald2 starting: pid 32133, dev sda4:8, commit interval 5 seconds <6>EXT4-fs (sda4): internal journal on sda4:8 <4>EXT4-fs (sda4): Ignoring delalloc option - requested data journaling mode <6>EXT4-fs: file extents enabled <6>EXT4-fs: mballoc enabled <6>EXT4-fs (sda4): mounted filesystem with journalled data mode <0>------------[ cut here ]------------ <2>kernel BUG at fs/ext4/mballoc.c:1721! 2:mon> --------------050200060807080208090304--