Bug 12018
| Summary: | oops when using ext4 on soft raid on IA64 with 65536 block size | ||
|---|---|---|---|
| Product: | File System | Reporter: | Li Zefan (lizf) |
| Component: | ext4 | Assignee: | fs_ext4 (fs_ext4) |
| Status: | CLOSED CODE_FIX | ||
| Severity: | high | ||
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.28-rc3-git4 | Subsystem: | |
| Regression: | --- | Bisected commit-id: | |
| Attachments: | Proposed patch provided by Yasunori Goto | ||
Created attachment 19341 [details]
Proposed patch provided by Yasunori Goto
This patch was provided by Yasunori Goto and should fix this bug.
This patch has been committed into the the mainline kernel as of 2.6.29-rc1. |
Latest working kernel version: ? Failing kernel version: 2.6.28-rc3-git4 Distribution: Fedora Hardware Environment: four 881.0GB hard disks Software Environment: latest-git e2fsprogs Problem Description and Steps to reproduce: I used soft raid on IA64 and got the following oops. # fdisk -l Disk /dev/sdc: 881.0 GB, 881005166592 bytes 255 heads, 63 sectors/track, 107109 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x0000544c Device Boot Start End Blocks Id System /dev/sdc1 1 107109 860353011 fd Linux raid autodetect ... Device Boot Start End Blocks Id System /dev/sdd1 1 107109 860353011 fd Linux raid autodetect ... Device Boot Start End Blocks Id System /dev/sde1 1 107109 860353011 fd Linux raid autodetect ... Device Boot Start End Blocks Id System /dev/sdf1 1 107109 860353011 fd Linux raid autodetect # mdadm --create /dev/md0 --level=0 --raid-devices=4 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 # mkfs.ext4 -b 65536 /dev/md0 # mount -t ext4 /dev/md0 /mnt # cd /mnt # dd if=/dev/zero of=tmp_file bs=1M count=700 (stuck) (another console) EXT4-fs: barriers enabled kjournald2 starting. Commit interval 5 seconds EXT4 FS on md0, internal journal on md0:8 EXT4-fs: delayed allocation enabled EXT4-fs: file extents enabled EXT4-fs: mballoc enabled EXT4-fs: mounted filesystem with ordered data mode. JBD: barrier-based sync failed on md0:8 - disabling barriers kernel BUG at fs/ext4/mballoc.c:1240! pdflush[12068]: bugcheck! 0 [1] Modules linked in: ext4 jbd2 crc16 raid0 nfsd lockd nfs_acl auth_rpcgss exportfs autofs4 sunrpc ipmi_watchdog mptctl ipmi_devintf ipmi_si ipmi_msghandler vfat fat dm_mirror dm_region_hash dm_log dm_multipath dm_mod e100 mii rng_core iTCO_wdt iTCO_vendor_support lpfc tg3 scsi_transport_fc libphy button sg usb_storage shpchp mptspi mptscsih mptbase scsi_transport_spi sd_mod scsi_mod ext3 jbd mbcache uhci_hcd ohci_hcd ehci_hcd [last unloaded: ipmi_watchdog] Pid: 12068, CPU 0, comm: pdflush psr : 0000101008526030 ifs : 8000000000000814 ip : [<a000000207dde590>] Not tainted (2.6.28-rc3-git4) ip is at ext4_mb_use_best_found+0xd0/0xb00 [ext4] unat: 0000000000000000 pfs : 0000000000000814 rsc : 0000000000000003 rnat: 0000000000000000 bsps: 0000000000000000 pr : 0000000000001941 ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c8a70433f csd : 0000000000000000 ssd : 0000000000000000 b0 : a000000207dde590 b6 : a000000100039260 b7 : a00000010000bb00 f6 : 000000000000000000000 f7 : 1003e0000000000000020 f8 : 1003ee0000040878b0000 f9 : 1003e0000000000000000 f10 : 1003ee0000040a19c0000 f11 : 1003e0000000000000000 r1 : a000000100e24b80 r2 : a000000100bc5210 r3 : 0000000000004000 r8 : 0000000000000029 r9 : 0000000000000001 r10 : a000000100a50000 r11 : ffffffffffff0420 r12 : e00000005bfbfa40 r13 : e00000005bfb0000 r14 : a000000100bc5218 r15 : e00001200ac5fe18 r16 : ffffffffffff6fd0 r17 : a000000100c3f7c8 r18 : 000000000000000a r19 : 0000000000000026 r20 : 0000000000020000 r21 : a000000100c3cb78 r22 : a000000100c3cb74 r23 : a000000100c3cb88 r24 : a000000100c3f7a0 r25 : a000000100c2dba0 r26 : a000000100c3cb74 r27 : 0000001008522030 r28 : 0000000000000034 r29 : a0000001012ce0e3 r30 : 0000000000000000 r31 : a000000100bef7d8 Call Trace: [<a000000100015ca0>] show_stack+0x40/0xa0 sp=e00000005bfbf610 bsp=e00000005bfb1618 [<a0000001000165b0>] show_regs+0x850/0x8a0 sp=e00000005bfbf7e0 bsp=e00000005bfb15b8 [<a000000100039970>] die+0x1b0/0x2c0 sp=e00000005bfbf7e0 bsp=e00000005bfb1570 [<a000000100039ad0>] die_if_kernel+0x50/0x80 sp=e00000005bfbf7e0 bsp=e00000005bfb1540 [<a00000010066a010>] ia64_bad_break+0x230/0x460 sp=e00000005bfbf7e0 bsp=e00000005bfb1518 [<a00000010000c300>] ia64_native_leave_kernel+0x0/0x270 sp=e00000005bfbf870 bsp=e00000005bfb1518 [<a000000207dde590>] ext4_mb_use_best_found+0xd0/0xb00 [ext4] sp=e00000005bfbfa40 bsp=e00000005bfb1478 [<a000000207ddf130>] ext4_mb_check_limits+0x170/0x1a0 [ext4] sp=e00000005bfbfa50 bsp=e00000005bfb1440 [<a000000207de8e90>] ext4_mb_regular_allocator+0x1910/0x1f20 [ext4] sp=e00000005bfbfa70 bsp=e00000005bfb13a8 [<a000000207dec6d0>] ext4_mb_new_blocks+0x3b0/0x1400 [ext4] sp=e00000005bfbfad0 bsp=e00000005bfb1328 [<a000000207dda050>] ext4_ext_get_blocks+0x16d0/0x1b40 [ext4] sp=e00000005bfbfae0 bsp=e00000005bfb1248 [<a000000207dae570>] ext4_get_blocks_wrap+0x1d0/0x4c0 [ext4] sp=e00000005bfbfb50 bsp=e00000005bfb11d0 [<a000000207db6c70>] ext4_da_get_block_write+0xd0/0x300 [ext4] sp=e00000005bfbfb50 bsp=e00000005bfb1180 [<a000000207dabc10>] mpage_da_map_blocks+0xf0/0xce0 [ext4] sp=e00000005bfbfb50 bsp=e00000005bfb1118 [<a000000207db4240>] ext4_da_writepages+0x4a0/0x780 [ext4] sp=e00000005bfbfc40 bsp=e00000005bfb1088 [<a000000100126c90>] do_writepages+0xb0/0x120 sp=e00000005bfbfcf0 bsp=e00000005bfb1060 [<a0000001001d1070>] __writeback_single_inode+0x370/0x6e0 sp=e00000005bfbfcf0 bsp=e00000005bfb1018 [<a0000001001d1cb0>] generic_sync_sb_inodes+0x4b0/0x7a0 sp=e00000005bfbfd30 bsp=e00000005bfb0fc8 [<a0000001001d1fd0>] sync_sb_inodes+0x30/0x60 sp=e00000005bfbfd30 bsp=e00000005bfb0fa0 [<a0000001001d28f0>] writeback_inodes+0x130/0x260 sp=e00000005bfbfd30 bsp=e00000005bfb0f70 [<a0000001001283a0>] background_writeout+0x140/0x1e0 sp=e00000005bfbfd30 bsp=e00000005bfb0f38 [<a000000100129460>] pdflush+0x2e0/0x4e0 sp=e00000005bfbfd80 bsp=e00000005bfb0f18 [<a0000001000b8ba0>] kthread+0xa0/0x120 sp=e00000005bfbfe30 bsp=e00000005bfb0ee8 [<a000000100014430>] kernel_thread_helper+0x30/0x60 sp=e00000005bfbfe30 bsp=e00000005bfb0ec0 [<a00000010000a0c0>] start_kernel_thread+0x20/0x40 sp=e00000005bfbfe30 bsp=e00000005bfb0ec0