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List:       kde-devel
Subject:    Re: Qt 4.5 related Crash on KDM Startup? [Fwd]
From:       "Roman Jarosz" <roman.jarosz () gmail ! com>
Date:       2009-02-07 12:36:22
Message-ID: op.uozemwi0rj95b0 () kedge
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On Sat, 07 Feb 2009 13:22:41 +0100, Roman Jarosz <roman.jarosz@gmail.com> wrote:

> On Sat, 07 Feb 2009 09:56:44 +0100, Thiago Macieira <thiago@kde.org>  
> wrote:
>
>> Roman Jarosz wrote:
>>> I see the same bug with qt-copy and KDE 4.2 (didn't try trunk).
>>> I've tried to debug it and actually the crash isn't in strlen because
>>> I've put printf into the XSetCommand in libX11 and it did print
>>> everything.
>>>
>>> The funny thing is that if I put qWarning() in
>>> kdebase/workspace/kdm/kfrontend/kqapp.cpp it doesn't crash.
>>>
>>> debug( "entering event loop\n" );
>>> rslt = dialog->exec();
>>> debug( "left event loop\n" );
>>> qWarning() << "XXXX 1"; // MY WARNING
>>> delete dialog;
>>> delete proc2;
>>>
>>> The strange thing is that the code actually waits in exec till
>>> I login so it isn't even executed.
>>>
>>> Any ideas?
>>
>> Sounds like a Heisenbug.
>>
>> Can you try valgrinding this section of the code? There's some memory
>> junk
>> somewhere and valgrind may be of help.
>>
>> The fact that strlen doesn't crash while debugging doesn't mean that the
>> argument it got passed was right.
>
> Here are the log two runs the second is with check-leak full.
>
> Roman

Hm go the files?? ... I've uploaded them here http://kedge.wz.cz/kopete/kdm/

Roman
 
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