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List:       kopete-devel
Subject:    Re: Kopete crashes in Kopete::MetaContact::isOnline()
From:       Pali =?ISO-8859-1?Q?Roh=E1r?= <pali.rohar () gmail ! com>
Date:       2012-10-22 12:31:25
Message-ID: 1788956.BCCguFEOcm () pali
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On Sunday 07 October 2012 14:17:29 Lamarque V. Souza wrote:
> Em Wednesday 03 October 2012, Christoph Feck escreveu:
> > Hi Kopete developers,
> 
> 	Hi,
> 
> > since KDE 4.8.80 (KDE 4.9 alpha), we get multiple bug reports
> > about Kopete crashing around
> > Kopete::MetaContact::isOnline(), see bug 301989 and newers
> > (links below) even when simply starting it.
> > 
> > It looks like those are caused by the network status updates
> > (commits r1283434, r1285546 ... r1289685) or the new offline
> > group (commit r1282381).
> > 
> > Could you have a look at the issue?
> 
> 	Well, I am trying to figure out why it crashes but I have no
> clue yet. I am able to reproduce the crash and have a valgrind
> log (attached to https://bugs.kde.org/show_bug.cgi?id=229996)
> but I still do not see why it crashes. The crash seems older
> than all those commits above, maybe the commits make the
> problem more often, but I do not think they are the cause.

Hello, I think that above commits did not intorduced this crash.

Kopete is crashing in function Kopete::MetaContact::isOnline. I 
think it can happen only if Kopete::MetaContact object or 
Kopete::Contact is deleted (pointer to *this is invalid). And 
this can be in situation when you delete some metacontact (move 
all subcontacts to other metacontact). Maybe quick & dirty fix 
can be to use qt shared pointer to fix problem of invalid 
pointer.

-- 
Pali Rohár
pali.rohar@gmail.com
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