"Craig O'Brien" <cobr...@fishman.com> wrote on 11/01/2013 09:48:23 AM:
> > This error shows BackupPC_dump segfault, and pointing to libperl.so
> > How do you install your BackupPC ? From source or from RPM?
>
> I did a yum install backuppc, which got it from epel
That's how I do it.
> > That tells you it was unmounted cleanly last time, not that
> everything checks out OK.
> > Try it with the -f option to make it do the actual checks.
>
> bash-4.1$ fsck -f /dev/sda1
> fsck from util-linux-ng 2.17.2
> e2fsck 1.41.12 (17-May-2010)
> Pass 1: Checking inodes, blocks, and sizes
> Pass 2: Checking directory structure
> Pass 3: Checking directory connectivity
> Pass 4: Checking reference counts
> Pass 5: Checking group summary information
> /dev/sda1: 20074505/2929688576 files (0.3% non-contiguous),
> 2775975116/2929686016 blocks
> bash-4.1$
Good. I think we've eliminated a disk or filesystem issue. I think we're
pretty comfortable it's a BackupPC corruption issue. It was hard to tell
when your error messages said that it could not seek to a particular point
in a file.
> > What distro are you using? (I use CentOS/RHEL)
>
> CentosOS release 6.4
Same here.
> > I think that segfault in a perl process needs to be tracked
> down before expecting anything else to make sense.
> > Either bad RAM or mismatching perl libs could break about anything
else.
>
> I installed perl-libs with yum as well. A yum info perl-libs tells
> me it was installed from the updates repo
>
> I think what I'm going to try at this point is to delete the bad
> backups, reinstall perl from epel, and keep an eye on it to see if
> it balloons up again. Thanks for all your help!
That's a very reasonable, if not very subtle, solution.
I think you need to monitor /var/log/messages for errors that mention
backup. See if the crash returns. Jeff is (justifiably) worried that the
crash caused your corruption, but it could just as easily be the other way
around. Once you clean up from this, you want to make sure that nothing
comes back.
If you've got the time, running memtest for a weekend might be a good
idea, too. The only thing it would cost is the downtime...
Tim Massey
Out of the Box Solutions, Inc.
Creative IT Solutions Made Simple!
http://www.OutOfTheBoxSolutions.com
tmas...@obscorp.com
22108 Harper Ave.
St. Clair Shores, MI 48080
Office: (800)750-4OBS (4627)
Cell: (586)945-8796
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