Is it dumping core?
Adrian
On 22 December 2012 07:07, Mikhail T. <mi+thun at aldan.algebra.com>
wrote:> Hello!
>
> I've set up several nightly backups all using the pipe-chain of dump |
xz -9
> | ccrypt > /remote/backups/fs.xz.cpt
>
> On one system these just work every night without a problem. On another I
> see xz SEGFAULT-ing about 90% through almost every night for one of the
> filesystems (the bigger of the two). This is, what cron emails me:
>
> DUMP: WARNING: should use -L when dumping live read-write
filesystems!
> DUMP: Date of this level 1 dump: Sat Dec 22 03:23:00 2012
> DUMP: Date of last level 0 dump: Thu Dec 6 01:23:02 2012
> DUMP: Dumping /dev/ad4s1g (/home) to standard output
> DUMP: mapping (Pass I) [regular files]
> DUMP: Cache 16 MB, blocksize = 65536
> DUMP: mapping (Pass II) [directories]
> DUMP: estimated 2157823 tape blocks.
> DUMP: dumping (Pass III) [directories]
> DUMP: dumping (Pass IV) [regular files]
> DUMP: 11.50% done, finished in 0:38 at Sat Dec 22 04:07:55 2012
> DUMP: 17.80% done, finished in 0:46 at Sat Dec 22 04:20:37 2012
> DUMP: 24.32% done, finished in 0:46 at Sat Dec 22 04:26:05 2012
> DUMP: 31.23% done, finished in 0:44 at Sat Dec 22 04:28:27 2012
> DUMP: 36.16% done, finished in 0:44 at Sat Dec 22 04:33:34 2012
> DUMP: 43.21% done, finished in 0:39 at Sat Dec 22 04:33:51 2012
> DUMP: 54.86% done, finished in 0:28 at Sat Dec 22 04:28:14 2012
> DUMP: 60.63% done, finished in 0:25 at Sat Dec 22 04:30:24 2012
> DUMP: 65.83% done, finished in 0:23 at Sat Dec 22 04:32:47 2012
> DUMP: 70.54% done, finished in 0:20 at Sat Dec 22 04:35:18 2012
> DUMP: 75.15% done, finished in 0:18 at Sat Dec 22 04:37:37 2012
> DUMP: 80.28% done, finished in 0:14 at Sat Dec 22 04:39:10 2012
> DUMP: 85.57% done, finished in 0:10 at Sat Dec 22 04:40:23 2012
> DUMP: 90.50% done, finished in 0:07 at Sat Dec 22 04:41:46 2012
> DUMP: SIGSEGV: ABORTING!
> DUMP: DUMP: DUMP: SIGSEGV: ABORTING!
> SIGSEGV: ABORTING!
> SIGSEGV: ABORTING!
> DUMP: SIGSEGV: ABORTING!
>
> Following xz's fault, all other processes (dump, ccrypt, sh) dump their
> cores to, but, according to dmesg, the culprit is always xz. According to
> core, the fault is somewhere inside liblzma.so.5. I recompiled the library
> to enable debugging and am trying to investigate, but, perhaps, someone has
> already run into this?
>
> Both systems used to run FreeBSD-8/amd64, when I first set the jobs up. I
> have since upgraded the troublesome server to 9.1, but that did not fix the
> problem.
>
> The remote filesystem (where ccrypt writes encrypted output) is mounted via
> smbfs on both servers, but I doubt that matters...
>
> Any ideas? Thanks,
>
> -mi
>
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