* BUG() in 2.6.33-rc8
@ 2010-02-16 23:15 Andreas Schwab
2010-03-08 1:35 ` Andreas Schwab
0 siblings, 1 reply; 3+ messages in thread
From: Andreas Schwab @ 2010-02-16 23:15 UTC (permalink / raw)
To: linux-m68k
I'm getting this BUG() when running 2.6.33-rc8 in Aranym:
ida_remove called for id=13 which is not allocated.
BUG: Dentry 10433d14{i=f000004e,n=kmsg} still in use (1) [unmount of proc proc]
kernel BUG at fs/dcache.c:670!
*** TRAP #7 *** FORMAT=0
Current process id is 1014
BAD KERNEL TRAP: 00000000
Modules linked in: nfs lockd nfs_acl sunrpc ipv6 dm_snapshot dm_mirror dm_region_hash dm_log dm_mod
PC: [<0007d56a>] shrink_dcache_for_umount_subtree+0x1ee/0x1f2
SR: 2310 SP: 10977ec4 a2: 10951030
d0: 00000022 d1: 0000145e d2: 00000001 d3: 0024ca2e
d4: 0007cc0a d5: 0007f064 a0: 0028bdbc a1: 0028bdc0
Process pidof (pid: 1014, task=10951030)
Frame format=0
Stack from 10977ef8:
00243288 0024b83b 0000029e 0024b847 10433d14 f000004e 10433d6c 00000001
0024ca2e 0080d33e 00000003 00000000 00000004 eff06a74 0080d200 0007d37c
00207834 eff069f8 0007d598 00a01694 0080d200 0028ecc6 0006fc7e 0080d200
0080d200 0028ecc6 c010d7a8 0006fd64 0080d200 10965f00 0007048a 0080d200
0080d23a 1082c4d0 10965f40 0006bdd6 0080d200 1082c4d0 10965f00 1082c4d0
10965f00 ffffffef 1082c4d0 10965f04 0006be54 1082c4d0 10965f00 80005650
Call Trace: [<0007d37c>] shrink_dcache_for_umount_subtree+0x0/0x1f2
[<0007d598>] shrink_dcache_for_umount+0x2a/0x62
[<0006fc7e>] generic_shutdown_super+0x1a/0xb0
[<0006fd64>] kill_anon_super+0x18/0x3c
[<0007048a>] deactivate_super+0x5a/0x78
[<0006bdd6>] filp_close+0x72/0x90
[<0006be54>] sys_close+0x60/0x88
[<00002662>] syscall+0x8/0xc
This is triggered by pidof when it close the file after reading one of
the /proc/$pid/stat files. Soon after that another BUG() happens in
mm/slab.c, so this looks like some memory corruption (it is strange that
the mntput at the end of dput ends up calling deactivate_super).
Is anyone else seeing that?
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: BUG() in 2.6.33-rc8
2010-02-16 23:15 BUG() in 2.6.33-rc8 Andreas Schwab
@ 2010-03-08 1:35 ` Andreas Schwab
2010-07-13 21:03 ` Geert Uytterhoeven
0 siblings, 1 reply; 3+ messages in thread
From: Andreas Schwab @ 2010-03-08 1:35 UTC (permalink / raw)
To: linux-m68k; +Cc: Al Viro
Andreas Schwab <schwab@linux-m68k.org> writes:
> I'm getting this BUG() when running 2.6.33-rc8 in Aranym:
>
> ida_remove called for id=13 which is not allocated.
> BUG: Dentry 10433d14{i=f000004e,n=kmsg} still in use (1) [unmount of proc proc]
> kernel BUG at fs/dcache.c:670!
> *** TRAP #7 *** FORMAT=0
> Current process id is 1014
> BAD KERNEL TRAP: 00000000
> Modules linked in: nfs lockd nfs_acl sunrpc ipv6 dm_snapshot dm_mirror dm_region_hash dm_log dm_mod
> PC: [<0007d56a>] shrink_dcache_for_umount_subtree+0x1ee/0x1f2
> SR: 2310 SP: 10977ec4 a2: 10951030
> d0: 00000022 d1: 0000145e d2: 00000001 d3: 0024ca2e
> d4: 0007cc0a d5: 0007f064 a0: 0028bdbc a1: 0028bdc0
> Process pidof (pid: 1014, task=10951030)
> Frame format=0
> Stack from 10977ef8:
> 00243288 0024b83b 0000029e 0024b847 10433d14 f000004e 10433d6c 00000001
> 0024ca2e 0080d33e 00000003 00000000 00000004 eff06a74 0080d200 0007d37c
> 00207834 eff069f8 0007d598 00a01694 0080d200 0028ecc6 0006fc7e 0080d200
> 0080d200 0028ecc6 c010d7a8 0006fd64 0080d200 10965f00 0007048a 0080d200
> 0080d23a 1082c4d0 10965f40 0006bdd6 0080d200 1082c4d0 10965f00 1082c4d0
> 10965f00 ffffffef 1082c4d0 10965f04 0006be54 1082c4d0 10965f00 80005650
> Call Trace: [<0007d37c>] shrink_dcache_for_umount_subtree+0x0/0x1f2
> [<0007d598>] shrink_dcache_for_umount+0x2a/0x62
> [<0006fc7e>] generic_shutdown_super+0x1a/0xb0
> [<0006fd64>] kill_anon_super+0x18/0x3c
> [<0007048a>] deactivate_super+0x5a/0x78
> [<0006bdd6>] filp_close+0x72/0x90
> [<0006be54>] sys_close+0x60/0x88
> [<00002662>] syscall+0x8/0xc
>
> This is triggered by pidof when it close the file after reading one of
> the /proc/$pid/stat files.
Reverting 86acdca1b63e6890540fa19495cfc708beff3d8b (fix
autofs/afs/etc. magic mountpoint breakage) fixes that.
Any idea?
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: BUG() in 2.6.33-rc8
2010-03-08 1:35 ` Andreas Schwab
@ 2010-07-13 21:03 ` Geert Uytterhoeven
0 siblings, 0 replies; 3+ messages in thread
From: Geert Uytterhoeven @ 2010-07-13 21:03 UTC (permalink / raw)
To: Andreas Schwab; +Cc: linux-m68k, Al Viro
On Mon, Mar 8, 2010 at 03:35, Andreas Schwab <schwab@linux-m68k.org> wrote:
> Andreas Schwab <schwab@linux-m68k.org> writes:
>
>> I'm getting this BUG() when running 2.6.33-rc8 in Aranym:
>>
>> ida_remove called for id=13 which is not allocated.
>> BUG: Dentry 10433d14{i=f000004e,n=kmsg} still in use (1) [unmount of proc proc]
>> kernel BUG at fs/dcache.c:670!
>> *** TRAP #7 *** FORMAT=0
>> Current process id is 1014
>> BAD KERNEL TRAP: 00000000
>> Modules linked in: nfs lockd nfs_acl sunrpc ipv6 dm_snapshot dm_mirror dm_region_hash dm_log dm_mod
>> PC: [<0007d56a>] shrink_dcache_for_umount_subtree+0x1ee/0x1f2
>> SR: 2310 SP: 10977ec4 a2: 10951030
>> d0: 00000022 d1: 0000145e d2: 00000001 d3: 0024ca2e
>> d4: 0007cc0a d5: 0007f064 a0: 0028bdbc a1: 0028bdc0
>> Process pidof (pid: 1014, task=10951030)
>> Frame format=0
>> Stack from 10977ef8:
>> 00243288 0024b83b 0000029e 0024b847 10433d14 f000004e 10433d6c 00000001
>> 0024ca2e 0080d33e 00000003 00000000 00000004 eff06a74 0080d200 0007d37c
>> 00207834 eff069f8 0007d598 00a01694 0080d200 0028ecc6 0006fc7e 0080d200
>> 0080d200 0028ecc6 c010d7a8 0006fd64 0080d200 10965f00 0007048a 0080d200
>> 0080d23a 1082c4d0 10965f40 0006bdd6 0080d200 1082c4d0 10965f00 1082c4d0
>> 10965f00 ffffffef 1082c4d0 10965f04 0006be54 1082c4d0 10965f00 80005650
>> Call Trace: [<0007d37c>] shrink_dcache_for_umount_subtree+0x0/0x1f2
>> [<0007d598>] shrink_dcache_for_umount+0x2a/0x62
>> [<0006fc7e>] generic_shutdown_super+0x1a/0xb0
>> [<0006fd64>] kill_anon_super+0x18/0x3c
>> [<0007048a>] deactivate_super+0x5a/0x78
>> [<0006bdd6>] filp_close+0x72/0x90
>> [<0006be54>] sys_close+0x60/0x88
>> [<00002662>] syscall+0x8/0xc
>>
>> This is triggered by pidof when it close the file after reading one of
>> the /proc/$pid/stat files.
>
> Reverting 86acdca1b63e6890540fa19495cfc708beff3d8b (fix
> autofs/afs/etc. magic mountpoint breakage) fixes that.
>
> Any idea?
Was this ever fixed?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2010-07-13 21:03 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-02-16 23:15 BUG() in 2.6.33-rc8 Andreas Schwab
2010-03-08 1:35 ` Andreas Schwab
2010-07-13 21:03 ` Geert Uytterhoeven
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox