kern/131784: triple LOR after hard reboot
Daan Vreeken
Daan at vehosting.nl
Fri Feb 20 16:30:04 PST 2009
The following reply was made to PR kern/131784; it has been noted by GNATS.
From: Daan Vreeken <Daan at vehosting.nl>
To: bug-followup at freebsd.org
Cc: Dirk Meyer <dm at home3.dinoex.sub.de>
Subject: Re: kern/131784: triple LOR after hard reboot
Date: Sat, 21 Feb 2009 01:27:14 +0100
On Tuesday 17 February 2009 19:59:22 Dirk Meyer wrote:
> >Number: 131784
> >Category: kern
> >Synopsis: triple LOR after hard reboot
...
> lock order reversal:
> 1st 0xffffff0003a2d7f8 ufs (ufs) @ /usr/src/sys/ufs/ffs/ffs_snapshot.c:424
> 2nd 0xfffffffe53e58bc8 bufwait (bufwait) @
...
> >How-To-Repeat:
>
> kernel crashes while loading snd_hda, no crashdump can be written.
> on reboot ffsck runs (and backroung fsck) which tiggered this LOR.
I'm seeing a similar (but slightly different) LOR when booting after loosing
the last bit of power of a laptop battery :
lock order reversal:
1st 0xc5f70ad0 ufs (ufs) @ /mnt/1/src-current/sys/ufs/ffs/ffs_snapshot.c:424
2nd 0xd9637810 bufwait (bufwait) @ /mnt/1/src-current/sys/kern/vfs_bio.c:1783
3rd 0xc5b04058 ufs (ufs) @ /mnt/1/src-current/sys/ufs/ffs/ffs_snapshot.c:545
KDB: stack backtrace:
db_trace_self_wrapper(c0be832c,e7dbd40c,c0879735,4,c0be37fb,...) at
db_trace_self_wrapper+0x26
kdb_backtrace(4,c0be37fb,c5523740,c55264c0,e7dbd468,...) at kdb_backtrace+0x29
_witness_debugger(c0beb0e2,c5b04058,c0bde712,c55264c0,c0c082e2,...) at
_witness_debugger+0x25
witness_checkorder(c5b04058,9,c0c082e2,221,0,...) at witness_checkorder+0x839
__lockmgr_args(c5b04058,80100,c5b04074,0,0,...) at __lockmgr_args+0x797
ffs_lock(e7dbd578,c0e7b5a0,c5b010a4,80100,c5b04000,...) at ffs_lock+0x8a
VOP_LOCK1_APV(c0cee5a0,e7dbd578,e7dbd598,c0d06ec0,c5b04000,...) at
VOP_LOCK1_APV+0xb5
_vn_lock(c5b04000,80100,c0c082e2,221,c5553200,...) at _vn_lock+0x5e
ffs_snapshot(c5b05500,c5861980,c0c09c5b,15e,3,...) at ffs_snapshot+0x1527
ffs_mount(c5b05500,c5b01000,c0bf18e3,3d7,c586cb00,...) at ffs_mount+0x146f
vfs_donmount(c5b01000,211000,c5d54380,c5d54380,bfbfed04,...) at
vfs_donmount+0x130e
nmount(c5b01000,e7dbdcf8,c,e7dbdd38,c0ccbb30,...) at nmount+0xbe
syscall(e7dbdd38) at syscall+0x2a3
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (378, FreeBSD ELF32, nmount), eip = 0x280e6c8b, esp = 0xbfbfeb2c,
ebp = 0xbfbfee78 ---
lock order reversal:
1st 0xd9637810 bufwait (bufwait) @ /mnt/1/src-current/sys/kern/vfs_bio.c:1783
2nd 0xc5fe9c9c snaplk (snaplk)
@ /mnt/1/src-current/sys/ufs/ffs/ffs_snapshot.c:2564
3rd 0xd9610360 bufwait (bufwait) @ /mnt/1/src-current/sys/kern/vfs_bio.c:2443
KDB: stack backtrace:
db_trace_self_wrapper(c0be832c,e7dbcfe0,c0879735,4,c0be37fb,...) at
db_trace_self_wrapper+0x26
kdb_backtrace(4,c0be37fb,c5527360,c5523740,e7dbd03c,...) at kdb_backtrace+0x29
_witness_debugger(c0beb0e2,d9610360,c0bf0833,c5523740,c0befd8e,...) at
_witness_debugger+0x25
witness_checkorder(d9610360,9,c0befd8e,98b,0,...) at witness_checkorder+0x839
__lockmgr_args(d9610360,81900,c5f70b20,c0bf0768,50,...) at
__lockmgr_args+0x797
getblk(c5f70a78,c1a2cd,0,4000,0,...) at getblk+0x153
breadn(c5f70a78,c1a2cd,0,4000,0,...) at breadn+0x44
bread(c5f70a78,c1a2cd,0,4000,0,...) at bread+0x4c
ffs_blkfree(c5a1e200,dd793000,c5f70a78,60d2210,0,...) at ffs_blkfree+0x328
mapacct_ufs2(c5f70a78,c60a1000,c60a5000,dd793000,8e7d80,...) at
mapacct_ufs2+0xe2
indiracct_ufs2(60d1658,0,ff7187f4,ffffffff,8e780c,...) at indiracct_ufs2+0x3f1
indiracct_ufs2(3a6bd18,0,ff7ff7f3,ffffffff,8e780c,...) at indiracct_ufs2+0x338
indiracct_ufs2(4d2ace8,0,ffbff7f2,ffffffff,80080c,...) at indiracct_ufs2+0x338
expunge_ufs2(c0a331c0,2,2,29a,0,...) at expunge_ufs2+0x495
ffs_snapshot(c5b05500,c5861980,c0c09c5b,15e,3,...) at ffs_snapshot+0x239d
ffs_mount(c5b05500,c5b01000,c0bf18e3,3d7,c586cb00,...) at ffs_mount+0x146f
vfs_donmount(c5b01000,211000,c5d54380,c5d54380,bfbfed04,...) at
vfs_donmount+0x130e
nmount(c5b01000,e7dbdcf8,c,e7dbdd38,c0ccbb30,...) at nmount+0xbe
syscall(e7dbdd38) at syscall+0x2a3
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (378, FreeBSD ELF32, nmount), eip = 0x280e6c8b, esp = 0xbfbfeb2c,
ebp = 0xbfbfee78 ---
lock order reversal:
1st 0xc5fe9c9c snaplk (snaplk) @ /mnt/1/src-current/sys/kern/vfs_vnops.c:293
2nd 0xc5f70ad0 ufs (ufs) @ /mnt/1/src-current/sys/ufs/ffs/ffs_snapshot.c:1588
KDB: stack backtrace:
db_trace_self_wrapper(c0be832c,e7dbd8c4,c0879735,4,c0be37fb,...) at
db_trace_self_wrapper+0x26
kdb_backtrace(4,c0be37fb,c5527360,c55264c0,e7dbd920,...) at kdb_backtrace+0x29
_witness_debugger(c0beb0c9,c5f70ad0,c0bde712,c55264c0,c0c082e2,...) at
_witness_debugger+0x25
witness_checkorder(c5f70ad0,9,c0c082e2,634,0,...) at witness_checkorder+0x839
__lockmgr_args(c5f70ad0,80000,0,0,0,...) at __lockmgr_args+0x797
ffs_snapremove(c5f70a78,c5b05500,0,c0bf3105,414,...) at ffs_snapremove+0x11f
softdep_releasefile(c5b157f8,e7dbdaa8,2,c0e7b570,c0cd03e4,...) at
softdep_releasefile+0x3b
ufs_inactive(e7dbdae8,c5f70aec,c5f70a78,c5f70aec,e7dbdb00,...) at
ufs_inactive+0x1bc
VOP_INACTIVE_APV(c0cee5a0,e7dbdae8,c0bf1f1d,92d,c0d06e80,...) at
VOP_INACTIVE_APV+0xa5
vinactive(c0cee5a0,e7dbdb1c,c0bf1f1d,8b3,129,...) at vinactive+0x8e
vput(c5f70a78,e7dbdb54,c0bf3105,125,c0d06be0,...) at vput+0x1db
vn_close(c5f70a78,1,c556c400,c5b01000,e7dbdbe0,...) at vn_close+0xee
vn_closefile(c5a895e8,c5b01000,3,0,c5a895e8,...) at vn_closefile+0xe9
_fdrop(c5a895e8,c5b01000,e7dbdc1c,c087957c,0,c5b010a4,c0e7b570,c0cd1bf0,c0be048b,c5d4712c,44f,c0be048b,e7dbdc44,c0841d80,c5d4712c,8,c0be048b,44f)
at _fdrop+0x43
closef(c5a895e8,c5b01000,44f,434,c5a895e8,...) at closef+0x290
kern_close(c5b01000,4,e7dbdd2c,c0b3d5f3,c5b01000,...) at kern_close+0x11d
close(c5b01000,e7dbdcf8,4,c0bebe9a,c0cc9850,...) at close+0x1a
syscall(e7dbdd38) at syscall+0x2a3
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (6, FreeBSD ELF32, close), eip = 0x28184573, esp = 0xbfbfeb2c, ebp
= 0xbfbfee78 ---
System:
FreeBSD Racebeest.Vitsch.LAN 8.0-CURRENT FreeBSD 8.0-CURRENT #2: Sat Feb 14
01:34:10 CET 2009
root at Racebeest.Vitsch.LAN:/usr/obj/mnt/1/src-current/sys/GENERIC i386
Regards,
--
Daan Vreeken
VEHosting
http://VEHosting.nl
tel: +31-(0)40-7113050 / +31-(0)6-46210825
KvK nr: 17174380
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