http://oss.sgi.com/bugzilla/show_bug.cgi?id=784
Summary: Kernel BUG at fs/xfs/support/debug.c:57
Product: Linux XFS
Version: unspecified
Platform: PC
OS/Version: Linux
Status: NEW
Severity: critical
Priority: P2
Component: XFS kernel code
AssignedTo: xfs-master@xxxxxxxxxxx
ReportedBy: pnealy@xxxxxxxxxxx
First off I am running kernel.org 2.6.18 kernel.
Here is the BUG from /var/log/messages
Jun 19 09:43:49 localhost kernel: Access to block zero: fs: <dm-0> inode:
1879052298 start_block : 0 start_off : 0 blkcnt : 0 extent-state : 0
Jun 19 09:43:49 localhost kernel: ----------- [cut here ] --------- [please bite
here ] ---------
Jun 19 09:43:49 localhost kernel: Kernel BUG at fs/xfs/support/debug.c:57
Jun 19 09:43:49 localhost kernel: invalid opcode: 0000 [1] SMP
Jun 19 09:43:49 localhost kernel: last sysfs file:
/devices/platform/host2/target2:0:1/2:0:1:0/model
Jun 19 09:43:49 localhost kernel: CPU 0
Jun 19 09:43:49 localhost kernel: Modules linked in: xfs nfsd exportfs lockd
nfs_acl bonding ftdi_sio usbserial sch_teql ipv6 autofs4 sunrpc lm85 hwmon_vid
i2c_isa i2c_amd756 dm_mirror dm_multipath dm_mod video button battery ac sg
ata_generic intel_rng pcspkr e1000 i2c_i801 ide_cd serio_raw cdrom bccfg bcraid
ata_piix libata reiserfs sd_mod scsi_mod ehci_hcd ohci_hcd uhci_hcd
Jun 19 09:43:49 localhost kernel: Pid: 22547, comm: smbd Not tainted 2.6.18 #1
Jun 19 09:43:49 localhost kernel: RIP: 0010:[<ffffffff883b6093>]
[<ffffffff883b6093>] :xfs:cmn_err+0xda/0x11f
Jun 19 09:43:49 localhost kernel: RSP: 0018:ffff81011647d868 EFLAGS: 00010246
Jun 19 09:43:49 localhost kernel: RAX: 0000000000000071 RBX: ffffffff883b7e7c
RCX: ffffffff8047c348
Jun 19 09:43:49 localhost kernel: RDX: ffffffff8047c348 RSI: 0000000000000297
RDI: ffffffff883cfa2c
Jun 19 09:43:49 localhost kernel: RBP: 0000000000000000 R08: ffffffff8047c348
R09: 0000000000000000
Jun 19 09:43:49 localhost kernel: R10: 0000000000040046 R11: ffff81000102a780
R12: 0000000000000297
Jun 19 09:43:49 localhost kernel: R13: ffff81012db07470 R14: 00000000023fa000
R15: ffff81011647dc58
Jun 19 09:43:49 localhost kernel: FS: 00002aaaadfa1d30(0000)
GS:ffffffff804f6000(0000) knlGS:0000000000000000
Jun 19 09:43:49 localhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Jun 19 09:43:49 localhost kernel: CR2: 00002aaaaaba33d2 CR3: 00000001231b8000
CR4: 00000000000006e0
Jun 19 09:43:49 localhost kernel: Process smbd (pid: 22547, threadinfo
ffff81011647c000, task ffff8100566b5000)
Jun 19 09:43:49 localhost kernel: Stack: 0000003000000030 ffff81011647d968
ffff81011647d888 00000000000000c5
Jun 19 09:43:49 localhost kernel: ffffffff88390059 ffff81011647dba0
ffff810156c0f320 000000007000100a
Jun 19 09:43:49 localhost kernel: 0000000000000000 0000000000000000
ffff81012db04000 ffff81012db07470
Jun 19 09:43:49 localhost kernel: Call Trace:
Jun 19 09:43:49 localhost kernel: [<ffffffff88390059>]
:xfs:xfs_iext_get_ext+0x34/0x5c
Jun 19 09:43:49 localhost kernel: [<ffffffff88390059>]
:xfs:xfs_iext_get_ext+0x34/0x5c
Jun 19 09:43:49 localhost kernel: [<ffffffff8837524b>]
:xfs:xfs_bmap_search_multi_extents+0x9b/0xd8
Jun 19 09:43:49 localhost kernel: [<ffffffff8837533d>]
:xfs:xfs_bmap_search_extents+0xb5/0xc3
Jun 19 09:43:49 localhost kernel: [<ffffffff8025afb4>] thread_return+0x0/0xf8
Jun 19 09:43:49 localhost kernel: [<ffffffff88375727>]
:xfs:xfs_bmapi+0x2b0/0x1ab9
Jun 19 09:43:49 localhost kernel: [<ffffffff8023ae90>]
lock_timer_base+0x1b/0x3c
Jun 19 09:43:49 localhost kernel: [<ffffffff80218f4f>] poll_freewait+0x22/0x6a
Jun 19 09:43:49 localhost kernel: [<ffffffff802106f9>] do_select+0x43c/0x469
Jun 19 09:43:49 localhost kernel: [<ffffffff8021cfff>] __pollwait+0x0/0xe1
Jun 19 09:43:49 localhost kernel: [<ffffffff883b38fa>]
:xfs:xfs_zero_eof+0x17e/0x22c
Jun 19 09:43:49 localhost kernel: [<ffffffff8020d621>]
current_fs_time+0x3b/0x40
Jun 19 09:43:49 localhost kernel: [<ffffffff8022ea73>] release_sock+0x13/0xaa
Jun 19 09:43:49 localhost kernel: [<ffffffff883b45b7>]
:xfs:xfs_write+0x4ab/0x954
Jun 19 09:43:49 localhost kernel: [<ffffffff802418c2>] do_sock_read+0x9b/0x9f
Jun 19 09:43:49 localhost kernel: [<ffffffff803be8f4>] sock_aio_read+0x51/0x60
Jun 19 09:43:49 localhost kernel: [<ffffffff883b0d38>]
:xfs:xfs_file_aio_write+0x69/0x6e
Jun 19 09:43:49 localhost kernel: [<ffffffff802168ea>] do_sync_write+0xc7/0x104
Jun 19 09:43:49 localhost kernel: [<ffffffff883b2efe>]
:xfs:xfs_vn_getattr+0x3e/0x100
Jun 19 09:43:49 localhost kernel: [<ffffffff802b9c37>]
__posix_lock_file_conf+0x354/0x398
Jun 19 09:43:49 localhost kernel: [<ffffffff8028ae0b>]
autoremove_wake_function+0x0/0x2e
Jun 19 09:43:49 localhost kernel: [<ffffffff8023743e>] fcntl_setlk+0x211/0x23e
Jun 19 09:43:49 localhost kernel: [<ffffffff802153cb>] vfs_write+0xad/0x153
Jun 19 09:43:49 localhost kernel: [<ffffffff8023f7ab>] sys_pwrite64+0x50/0x70
Jun 19 09:43:49 localhost kernel: [<ffffffff80257c26>] system_call+0x7e/0x83
Jun 19 09:43:49 localhost kernel:
Jun 19 09:43:49 localhost kernel:
Jun 19 09:43:50 localhost kernel: Code: 0f 0b 68 b0 b4 3b 88 c2 39 00 eb 2b 48
c7 c2 20 14 3d 88 48
Jun 19 09:43:50 localhost kernel: RIP [<ffffffff883b6093>]
:xfs:cmn_err+0xda/0x11f
Jun 19 09:43:50 localhost kernel: RSP <ffff81011647d868>
Here is the output from xfs_db on that inode:
[Thu Jun 19 18:08:57] root@oblivion:~ # xfs_db -r /dev/HYD_vol0/HYD_vol0 -c "ino
de 1879052298" -c "print"
core.magic = 0x494e
core.mode = 0100766
core.version = 1
core.format = 3 (btree)
core.nlinkv1 = 1
core.uid = 499
core.gid = 499
core.flushiter = 0
core.atime.sec = Thu Jun 19 09:43:40 2008
core.atime.nsec = 835449000
core.mtime.sec = Thu Jun 19 09:43:49 2008
core.mtime.nsec = 355449000
core.ctime.sec = Thu Jun 19 09:43:49 2008
core.ctime.nsec = 355449000
core.size = 37539840
core.nblocks = 882
core.extsize = 0
core.nextents = 512
core.naextents = 0
core.forkoff = 0
core.aformat = 2 (extents)
core.dmevmask = 0
core.dmstate = 0
core.newrtbm = 0
core.prealloc = 0
core.realtime = 0
core.immutable = 0
core.append = 0
core.sync = 0
core.noatime = 0
core.nodump = 0
core.rtinherit = 0
core.projinherit = 0
core.nosymlinks = 0
core.extsz = 0
core.extszinherit = 0
core.nodefrag = 0
core.gen = 2
next_unlinked = null
u.bmbt.level = 1
u.bmbt.numrecs = 3
u.bmbt.keys[1-3] = [startoff] 1:[0] 2:[4664] 3:[6569]
u.bmbt.ptrs[1-3] = 1:2030065417 2:537920507 3:538082440
Have you seen this before and any hints on if it has been fixed in a later
kernel or not? This is second time we've seen it, and only under heavy client
load.
Thanks.
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