* xfs_db -c frag -r /dev/sdb1 segmentation fault
@ 2010-10-01 20:06 Robert Pipca
2010-10-02 10:39 ` Dave Chinner
0 siblings, 1 reply; 4+ messages in thread
From: Robert Pipca @ 2010-10-01 20:06 UTC (permalink / raw)
To: xfs, Robert Pipca
Hi,
I'm using kernel 2.6.34.7 on a gentoo amd64 system.
Towards the end of the command, I get:
read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
16384) = 16384
lseek(4, 352256, SEEK_SET) = 352256
read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
16384) = 16384
lseek(4, 376832, SEEK_SET) = 376832
read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
16384) = 16384
lseek(4, 393216, SEEK_SET) = 393216
read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
16384) = 16384
lseek(4, 417792, SEEK_SET) = 417792
read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
16384) = 16384
lseek(4, 434176, SEEK_SET) = 434176
read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
16384) = 16384
lseek(4, 450560, SEEK_SET) = 450560
read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
16384) = 16384
lseek(4, 475136, SEEK_SET) = 475136
read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
16384) = 16384
lseek(4, 491520, SEEK_SET) = 491520
read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
16384) = 16384
lseek(4, 516096, SEEK_SET) = 516096
read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
16384) = 16384
lseek(4, 14190936064, SEEK_SET) = 14190936064
read(4, "BMAP\0\0\0\n\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\0\0\0\0\0\0\0\0\0"...,
4096) = 4096
lseek(4, 532480, SEEK_SET) = 532480
read(4, "IN\201\240\2\3\0\0\0\0\377\376\0\0\377\376\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\21L"...,
16384) = 16384
lseek(4, 37129601024, SEEK_SET) = 37129601024
read(4, "BMAP\0\0\0\n\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\0\0\0\0\0\0\0\0\0"...,
4096) = 4096
lseek(4, 37028130816, SEEK_SET) = 37028130816
read(4, "BMAP\0\0\0\n\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\0\0\0\0\0\0\0\0\0"...,
4096) = 4096
lseek(4, 36522024960, SEEK_SET) = 36522024960
read(4, "\177\260g\203\223s\231\364\273\222\276\34\363~\253\355\271\271\17h\237\v\357\274\230\25\334\351x\2719&\34"...,
4096) = 4096
brk(0x26af000) = 0x26af000
brk(0x26a0000) = 0x26a0000
mmap(NULL, 200704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0) = 0x7ff07237e000
brk(0x2690000) = 0x2690000
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
Is this a kernel or a XFS problem?
Cheers,
- Robert
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: xfs_db -c frag -r /dev/sdb1 segmentation fault
2010-10-01 20:06 xfs_db -c frag -r /dev/sdb1 segmentation fault Robert Pipca
@ 2010-10-02 10:39 ` Dave Chinner
2010-10-03 6:45 ` Christoph Hellwig
0 siblings, 1 reply; 4+ messages in thread
From: Dave Chinner @ 2010-10-02 10:39 UTC (permalink / raw)
To: Robert Pipca; +Cc: xfs
On Fri, Oct 01, 2010 at 05:06:08PM -0300, Robert Pipca wrote:
> Hi,
>
> I'm using kernel 2.6.34.7 on a gentoo amd64 system.
>
> Towards the end of the command, I get:
>
> read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
> 16384) = 16384
> lseek(4, 352256, SEEK_SET) = 352256
> read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
> 16384) = 16384
> lseek(4, 376832, SEEK_SET) = 376832
> read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
> 16384) = 16384
> lseek(4, 393216, SEEK_SET) = 393216
> read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
> 16384) = 16384
> lseek(4, 417792, SEEK_SET) = 417792
> read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
> 16384) = 16384
> lseek(4, 434176, SEEK_SET) = 434176
> read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
> 16384) = 16384
> lseek(4, 450560, SEEK_SET) = 450560
> read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
> 16384) = 16384
> lseek(4, 475136, SEEK_SET) = 475136
> read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
> 16384) = 16384
> lseek(4, 491520, SEEK_SET) = 491520
> read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
> 16384) = 16384
> lseek(4, 516096, SEEK_SET) = 516096
> read(4, "INA\350\2\1\0\0\0\0\377\376\0\0\377\376\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\1L"...,
> 16384) = 16384
> lseek(4, 14190936064, SEEK_SET) = 14190936064
> read(4, "BMAP\0\0\0\n\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\0\0\0\0\0\0\0\0\0"...,
> 4096) = 4096
> lseek(4, 532480, SEEK_SET) = 532480
> read(4, "IN\201\240\2\3\0\0\0\0\377\376\0\0\377\376\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\21L"...,
> 16384) = 16384
> lseek(4, 37129601024, SEEK_SET) = 37129601024
> read(4, "BMAP\0\0\0\n\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\0\0\0\0\0\0\0\0\0"...,
> 4096) = 4096
> lseek(4, 37028130816, SEEK_SET) = 37028130816
> read(4, "BMAP\0\0\0\n\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\0\0\0\0\0\0\0\0\0"...,
> 4096) = 4096
> lseek(4, 36522024960, SEEK_SET) = 36522024960
> read(4, "\177\260g\203\223s\231\364\273\222\276\34\363~\253\355\271\271\17h\237\v\357\274\230\25\334\351x\2719&\34"...,
> 4096) = 4096
> brk(0x26af000) = 0x26af000
> brk(0x26a0000) = 0x26a0000
> mmap(NULL, 200704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
> -1, 0) = 0x7ff07237e000
> brk(0x2690000) = 0x2690000
> --- SIGSEGV (Segmentation fault) @ 0 (0) ---
> +++ killed by SIGSEGV +++
>
>
> Is this a kernel or a XFS problem?
It's an xfs_db problem. what version are you running (xfs_db -V)?
Can you build a non-stripped xfs_db executable and run it under gdb
so we can get a stack trace and location of where the SEGV is
occurring?
Note that the crash could be caused by a corrupted filesystem.
Running xfs_repair -n over the filesystem will tell you if there are
any problems in the filesystem. If there are, can you post the
output of the repair command as well?
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: xfs_db -c frag -r /dev/sdb1 segmentation fault
2010-10-02 10:39 ` Dave Chinner
@ 2010-10-03 6:45 ` Christoph Hellwig
2010-10-04 19:43 ` Robert Pipca
0 siblings, 1 reply; 4+ messages in thread
From: Christoph Hellwig @ 2010-10-03 6:45 UTC (permalink / raw)
To: Dave Chinner; +Cc: Robert Pipca, xfs
On Sat, Oct 02, 2010 at 08:39:03PM +1000, Dave Chinner wrote:
> Note that the crash could be caused by a corrupted filesystem.
Or running it on a mounted filesystem. Robert, did you run the command
on a mounted or unmounted filesystem?
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xfs mailing list
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http://oss.sgi.com/mailman/listinfo/xfs
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: xfs_db -c frag -r /dev/sdb1 segmentation fault
2010-10-03 6:45 ` Christoph Hellwig
@ 2010-10-04 19:43 ` Robert Pipca
0 siblings, 0 replies; 4+ messages in thread
From: Robert Pipca @ 2010-10-04 19:43 UTC (permalink / raw)
To: Christoph Hellwig; +Cc: xfs
Hi,
I ran it on a mounted filesystem.
It's a squid webcache machine, and I ran it on the HD that's doing the
cache, to see how fragmented it is....
This thing is: After I ran xfs_fsr on the same partition, xfs_db
started working again (even though both times I used "-r").
Should this have happened?
Cheers,
- Robert
2010/10/3 Christoph Hellwig <hch@infradead.org>:
> On Sat, Oct 02, 2010 at 08:39:03PM +1000, Dave Chinner wrote:
>> Note that the crash could be caused by a corrupted filesystem.
>
> Or running it on a mounted filesystem. Robert, did you run the command
> on a mounted or unmounted filesystem?
>
>
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xfs mailing list
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http://oss.sgi.com/mailman/listinfo/xfs
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2010-10-02 10:39 ` Dave Chinner
2010-10-03 6:45 ` Christoph Hellwig
2010-10-04 19:43 ` Robert Pipca
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