Segmentation fault (SEGV) in cyrus ptloader / CentOS 7

[Cornelius Hald]

While at it, I've also added a bug report about ctl_mboxlist.

https://issues.kolab.org/show_bug.cgi?id=3963


On Sat, 2014-11-22 at 15:34 +0100, Cornelius Hald wrote:
> I've managed to get a strack trace by running gdb manually. The bug
> report is here:
> 
> https://issues.kolab.org/show_bug.cgi?id=3962
> 
> Cheers,
> Conny
> 
> 
> On Thu, 2014-11-20 at 20:39 +0100, Cornelius Hald wrote:
> > Thanks for the info, so I think I'll stay with the "stable" version of
> > cyrus and just restart it once a night using cron. I found out that if I
> > prefork 10 ptloader processes I can get through a day ;)
> > 
> > Anyway, if you know how to get a stack trace I'd be glad to hear about
> > it.
> > 
> > BTW ctl_mboxlist seems to segfault on my system as well occasionally.
> > 
> > [...]
> > [493826.976159] ctl_mboxlist[25827]: segfault at 3 ip 00007f2d44c016e1
> > sp 00007fff1b6240d8 error 4 in libc-2.17.so[7f2d44a9f000+1b6000]
> > [...]
> > 
> > Cheers,
> > Conny
> > 
> > 
> > On Thu, 2014-11-20 at 16:54 +0100, Franz Skale wrote:
> > > Hi,
> > > i stepped back to version 2.5~dev2014082101-0~kolab1.
> > > Itried an upgrade to 2.5~dev2014111801-0~kolab1 which results in weird
> > > behaviour.
> > > Nevertheless, ctl_mboxlist didn't work with 2.5~dev2014082101-0~kolab1,
> > > so i took ctl_mboxlist from 2.5~dev2014111801-0~kolab1, which actually
> > > works !
> > > 
> > > 2.5~dev2014111801-0~kolab1 ctl_cyrusdb destroys the working mailboxes.db
> > > and finally fills up the imapd.log:
> > > cyrus-imapd/ctl_cyrusdb[6698]: IOERROR: skiplist RECSIZE not safe
> > > /var/lib/imap/mailboxes.db, offset 12192
> > > 
> > > Then i recreated the mailboxes.db using a backup, made before the
> > > upgrade, and was able to use ctl_mboxlist -d and cyr_dbtool skiplist show.
> > > When starting cyrus again, the mailboxes.db get corrupt again, showing
> > > the same error in imapd.log.
> > > 
> > > I think both versions are not bugfree, so i stay with my working, but
> > > mixed version.
> > > 
> > > Rgds.
> > > 
> > > Franz
> > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > Am 19.11.14 um 15:15 schrieb Cornelius Hald:
> > > > On Wed, 2014-11-19 at 12:07 +1300, Torsten Grote wrote:
> > > >> On 11/19/2014 04:52 AM, Cornelius Hald wrote:
> > > >>> Unfortunately I do not get any of those gdb-backtrace file in /tmp
> > > >>>
> > > >>> Any ideas?
> > > >> Not really, but maybe this helps:
> > > >>
> > > >>     https://issues.kolab.org/show_bug.cgi?id=3652#c2
> > > > Thanks, but that's just about running a stand-alone program under gdb.
> > > > In my situation the cyrus master process has to start the ptloader child
> > > > processes under gdb. Which it does, but somehow wrong.
> > > >
> > > > Well, I'll keep trying...
> > > >
> > > > Cheers,
> > > > Conny
> > > >
> > > > _______________________________________________
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> > > 
> > > 
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