BUG after md/raid10:md0: not enough operational mirrors.
From: Ilia Mirkin
Date: Mon Dec 20 2010 - 02:57:29 EST
Hello,
I've just upgraded to linux-2.6.36.2 on this machine. Right after the
upgrade, I got an oops on boot which I was unable to capture. I'm
guessing that it left md state in a somewhat undefined place, although
I don't know what caused the initial oops. Anyways, on second boot:
[ 17.336794] md: Scanned 11 and added 11 devices.
[ 17.337050] md: autorun ...
[ 17.337298] md: considering sdj1 ...
[ 17.337552] md: adding sdj1 ...
[ 17.337800] md: adding sdg1 ...
[ 17.338047] md: adding sdi1 ...
[ 17.338295] md: adding sdh1 ...
[ 17.338548] md: adding sdf1 ...
[ 17.338797] md: adding sde1 ...
[ 17.339046] md: adding sdk1 ...
[ 17.339295] md: adding sdd1 ...
[ 17.339556] md: adding sda1 ...
[ 17.339808] md: adding sdb1 ...
[ 17.340058] md: adding sdc1 ...
[ 17.340305] md: created md0
[ 17.340547] md: bind<sdc1>
[ 17.340793] md: bind<sdb1>
[ 17.341037] md: bind<sda1>
[ 17.341287] md: bind<sdd1>
[ 17.341543] md: bind<sdk1>
[ 17.341790] md: bind<sde1>
[ 17.342036] md: bind<sdf1>
[ 17.342284] md: bind<sdh1>
[ 17.342534] md: bind<sdi1>
[ 17.342783] md: bind<sdg1>
[ 17.343031] md: bind<sdj1>
[ 17.343281] md: running:
<sdj1><sdg1><sdi1><sdh1><sdf1><sde1><sdk1><sdd1><sda1><sdb1><sdc1>
[ 17.344151] md: kicking non-fresh sdj1 from array!
[ 17.344406] md: unbind<sdj1>
[ 17.348365] md: export_rdev(sdj1)
[ 17.348613] md: kicking non-fresh sdg1 from array!
[ 17.348852] md: unbind<sdg1>
[ 17.356343] md: export_rdev(sdg1)
[ 17.356589] md: kicking non-fresh sdi1 from array!
[ 17.356827] md: unbind<sdi1>
[ 17.364325] md: export_rdev(sdi1)
[ 17.364582] md: kicking non-fresh sdh1 from array!
[ 17.364831] md: unbind<sdh1>
[ 17.372308] md: export_rdev(sdh1)
[ 17.372563] md: kicking non-fresh sdf1 from array!
[ 17.372812] md: unbind<sdf1>
[ 17.380291] md: export_rdev(sdf1)
[ 17.380551] md: kicking non-fresh sde1 from array!
[ 17.380801] md: unbind<sde1>
[ 17.388274] md: export_rdev(sde1)
[ 17.388522] md: kicking non-fresh sdk1 from array!
[ 17.388763] md: unbind<sdk1>
[ 17.396256] md: export_rdev(sdk1)
[ 17.397013] md/raid10:md0: not enough operational mirrors.
[ 17.397364] BUG: unable to handle kernel NULL pointer dereference
at 0000000000000014
[ 17.397882] IP: [<ffffffff814ccc1f>] _raw_spin_lock_irq+0xa/0x1b
[ 17.398162] PGD 0
[ 17.398450] Oops: 0002 [#1] SMP
[ 17.398749] last sysfs file:
[ 17.398986] CPU 13
[ 17.399022] Modules linked in:
[ 17.399538]
[ 17.399771] Pid: 1519, comm: md0_raid10 Not tainted 2.6.36.2 #2 X8DT3/X8DT3
[ 17.400013] RIP: 0010:[<ffffffff814ccc1f>] [<ffffffff814ccc1f>]
_raw_spin_lock_irq+0xa/0x1b
[ 17.400510] RSP: 0018:ffff88033d151cc0 EFLAGS: 00010082
[ 17.400750] RAX: 0000000000000100 RBX: 0000000000000000 RCX: 0000000000000000
[ 17.400995] RDX: ffff88033e381650 RSI: 0000000000000000 RDI: 0000000000000014
[ 17.401288] RBP: ffff88033d151cc0 R08: ffff88033d150000 R09: 0000000000000000
[ 17.401531] R10: ffffffff81a7d7f0 R11: ffff88033e355dc8 R12: ffff88033d700d80
[ 17.401774] R13: 0000000000000014 R14: 0000000000000000 R15: ffff88033d151e80
[ 17.402018] FS: 0000000000000000(0000) GS:ffff88034e340000(0000)
knlGS:0000000000000000
[ 17.402478] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 17.402718] CR2: 0000000000000014 CR3: 0000000001a05000 CR4: 00000000000006e0
[ 17.402961] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 17.403252] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 17.403496] Process md0_raid10 (pid: 1519, threadinfo
ffff88033d150000, task ffff88033e381650)
[ 17.403940] Stack:
[ 17.404195] ffff88033d151cf0 ffffffff81380efb ffff88033d151d10
0000000000000014
[ 17.404536] <0> ffff88033d700d80 ffff88033e381650 ffff88033d151e50
ffffffff81381900
[ 17.405141] <0> ffffffff81a1cd80 ffff88033e381650 ffff88033e381650
ffffffff814cb876
[ 17.406019] Call Trace:
[ 17.406279] [<ffffffff81380efb>] flush_pending_writes+0x1c/0x8a
[ 17.406524] [<ffffffff81381900>] raid10d+0x69/0xe06
[ 17.406765] [<ffffffff814cb876>] ? schedule+0x61e/0x66b
[ 17.407008] [<ffffffff814cbc42>] ? schedule_timeout+0x22/0xbf
[ 17.407299] [<ffffffff81032a25>] ? finish_task_switch+0x3d/0xb0
[ 17.407547] [<ffffffff813936bd>] md_thread+0xf8/0x116
[ 17.407791] [<ffffffff81051e93>] ? autoremove_wake_function+0x0/0x38
[ 17.408033] [<ffffffff813935c5>] ? md_thread+0x0/0x116
[ 17.408291] [<ffffffff810519fb>] kthread+0x81/0x89
[ 17.408534] [<ffffffff81003854>] kernel_thread_helper+0x4/0x10
[ 17.408777] [<ffffffff8105197a>] ? kthread+0x0/0x89
[ 17.409017] [<ffffffff81003850>] ? kernel_thread_helper+0x0/0x10
[ 17.409301] Code: eb f6 c9 c3 55 48 89 e5 9c 58 fa ba 00 01 00 00
f0 66 0f c1 17 38 f2 74 06 f3 90 8a 17 eb f6 c9 c3 55 48 89 e5 fa b8
00 01 00 00 <f0> 66 0f c1 07 38 e0 74 06 f3 90 8a 07 eb f6 c9 c3 55 48
89 e5
[ 17.412131] RIP [<ffffffff814ccc1f>] _raw_spin_lock_irq+0xa/0x1b
[ 17.417553] RSP <ffff88033d151cc0>
[ 17.417789] CR2: 0000000000000014
[ 17.418026] ---[ end trace 1dc7eeca43b701f8 ]---
[ 17.418302] md0_raid10 used greatest stack depth: 4632 bytes left
[ 17.418338] md: pers->run() failed ...
[ 17.418342] md: do_md_run() returned -5
[ 17.418344] md: md0 still in use.
[ 17.418346] md: ... autorun DONE.
Shortly followed by:
[ 18.572342] udev: starting version 149
[ 18.572396] udevd (1612): /proc/1612/oom_adj is deprecated, please
use /proc/1612/oom_score_adj instead.
[ 18.615329] BUG: unable to handle kernel paging request at 00000000000ffeb6
[ 18.615645] IP: [<ffffffff8102a0c7>] __wake_up_common+0x29/0x76
[ 18.615923] PGD 73cd4a067 PUD 73cd4b067 PMD 0
[ 18.616264] Oops: 0000 [#2] SMP
[ 18.616570] last sysfs file:
/sys/devices/pci0000:00/0000:00:1a.2/usb5/5-2/5-2:1.0/input/input2/name
[ 18.617020] CPU 2
[ 18.617057] Modules linked in:
[ 18.617558]
[ 18.617796] Pid: 1635, comm: udevd Tainted: G D 2.6.36.2
#2 X8DT3/X8DT3
[ 18.618242] RIP: 0010:[<ffffffff8102a0c7>] [<ffffffff8102a0c7>]
__wake_up_common+0x29/0x76
[ 18.618719] RSP: 0018:ffff88073cd69de8 EFLAGS: 00010096
[ 18.618958] RAX: 00000000000ffeb6 RBX: ffff88033d700d90 RCX: 0000000000000000
[ 18.619202] RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff88033d700d90
[ 18.619447] RBP: ffff88073cd69e18 R08: 00000000000ffe9e R09: 000000000000000a
[ 18.619691] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[ 18.619934] R13: 0000000000000001 R14: ffff88033d700d98 R15: 0000000000000000
[ 18.620177] FS: 00007fcae5aba6f0(0000) GS:ffff880001c80000(0000)
knlGS:0000000000000000
[ 18.620625] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 18.620886] CR2: 00000000000ffeb6 CR3: 000000073cd49000 CR4: 00000000000006e0
[ 18.621146] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 18.621410] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 18.621761] Process udevd (pid: 1635, threadinfo ffff88073cd68000,
task ffff88073cd30770)
[ 18.622238] Stack:
[ 18.622487] 0000000300000000 ffff88033d700d90 0000000000000000
0000000000000001
[ 18.622928] <0> 0000000000000296 0000000000000003 ffff88073cd69e58
ffffffff8102d080
[ 18.623596] <0> ffff88073cd69ee8 ffff88033d10b400 0000000000000000
ffffffff81a44410
[ 18.624514] Call Trace:
[ 18.624816] [<ffffffff8102d080>] __wake_up+0x38/0x50
[ 18.625075] [<ffffffff8138e297>] md_wakeup_thread+0x27/0x29
[ 18.625319] [<ffffffff8138f301>] mddev_unlock+0xa6/0xab
[ 18.625605] [<ffffffff8138f533>] md_attr_show+0x4c/0x58
[ 18.625867] [<ffffffff8112a83b>] sysfs_read_file+0xb2/0x131
[ 18.626121] [<ffffffff810dbd8e>] vfs_read+0xa8/0x100
[ 18.626371] [<ffffffff810dbeaa>] sys_read+0x47/0x70
[ 18.626666] [<ffffffff81002aab>] system_call_fastpath+0x16/0x1b
[ 18.626928] Code: c9 c3 55 48 89 e5 41 57 4d 89 c7 41 56 4c 8d 77
08 41 55 41 54 41 89 d4 53 48 83 ec 08 89 75 d4 89 4d d0 48 8b 47 08
4c 8d 40 e8 <49> 8b 40 18 48 8d 58 e8 eb 2d 45 8b 28 4c 89 f9 8b 55 d0
8b 75
[ 18.629848] RIP [<ffffffff8102a0c7>] __wake_up_common+0x29/0x76
[ 18.630139] RSP <ffff88073cd69de8>
[ 18.630386] CR2: 00000000000ffeb6
[ 18.630680] ---[ end trace 1dc7eeca43b701f9 ]---
And then a watchdog:
[ 230.799819] ------------[ cut here ]------------
[ 230.800081] WARNING: at kernel/watchdog.c:240
watchdog_overflow_callback+0xa9/0xbb()
[ 230.805856] Hardware name: X8DT3
[ 230.806106] Watchdog detected hard LOCKUP on cpu 1
[ 230.806147] Modules linked in: cifs kvm_intel kvm iTCO_wdt
iTCO_vendor_support i2c_i801
[ 230.807114] Pid: 2594, comm: udevd Tainted: G D 2.6.36.2 #2
[ 230.807358] Call Trace:
[ 230.807636] <NMI> [<ffffffff8107f1d2>] ?
watchdog_overflow_callback+0xa9/0xbb
[ 230.808134] [<ffffffff81038abf>] warn_slowpath_common+0x80/0x99
[ 230.808382] [<ffffffff81038bbb>] warn_slowpath_fmt+0x69/0x6b
[ 230.808679] [<ffffffff8107f1d2>] watchdog_overflow_callback+0xa9/0xbb
[ 230.808938] [<ffffffff8109ebeb>] __perf_event_overflow+0x189/0x1fc
[ 230.809195] [<ffffffff8109efcd>] perf_event_overflow+0x14/0x16
[ 230.809448] [<ffffffff81011b52>] intel_pmu_handle_irq+0x385/0x3ee
[ 230.809744] [<ffffffff814ce2c0>] perf_event_nmi_handler+0x6f/0xcf
[ 230.810001] [<ffffffff814cfdf2>] notifier_call_chain+0x33/0x5b
[ 230.810249] [<ffffffff814cfe3c>] atomic_notifier_call_chain+0x13/0x15
[ 230.810499] [<ffffffff814cfe6c>] notify_die+0x2e/0x30
[ 230.810789] [<ffffffff814cda31>] do_nmi+0x91/0x261
[ 230.811042] [<ffffffff814cd4fa>] nmi+0x1a/0x20
[ 230.811290] [<ffffffff814ccc0f>] ? _raw_spin_lock_irqsave+0x17/0x1d
[ 230.811576] <<EOE>> [<ffffffff8102d06a>] __wake_up+0x22/0x50
[ 230.811875] [<ffffffff8138e297>] md_wakeup_thread+0x27/0x29
[ 230.812125] [<ffffffff8138f301>] mddev_unlock+0xa6/0xab
[ 230.812373] [<ffffffff8138f533>] md_attr_show+0x4c/0x58
[ 230.812663] [<ffffffff8112a83b>] sysfs_read_file+0xb2/0x131
[ 230.812919] [<ffffffff810dbd8e>] vfs_read+0xa8/0x100
[ 230.813168] [<ffffffff810dbeaa>] sys_read+0x47/0x70
[ 230.813415] [<ffffffff81002aab>] system_call_fastpath+0x16/0x1b
[ 230.813706] ---[ end trace 1dc7eeca43b701fa ]---
I will be throwing out/rebuilding this raid shortly (it's used for
swap, no real data on it anyways), but thought it would be good to
report this. Let me know if I can provide any further details about
this system.
--
Ilia Mirkin
imirkin@xxxxxxxxxxxx
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