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Bug#328728: libqt3-mt: Multiple apps segfault in QShared::deref()



On September 19, 2005 15:15, Bob Tanner wrote:
> On Monday 19 September 2005 01:44 pm, Christopher Martin wrote:
> > On September 19, 2005 14:30, Bob Tanner wrote:
> > > On Monday 19 September 2005 09:03 am, Christopher Martin wrote:
> > > > And as Josh Metzler pointed out, please ensure that everything is
> > > > being built with gcc-4.0.
> > >
> > > I responded to Josh in private email, everything is gcc-4.0.2.
> >
> > Thanks for letting us know. Sorry to be a pain, though, but do you mean
> > "everything is _fine_ with gcc-4.0.2" ? And are you using Debian's
> > gcc-4.0 packages, or the gcc 4.0.2 pre-release from upstream? What
> > compiler caused the original problems - gcc-3.3, gcc-3.4, or an earlier
> > gcc-4.0?
> >
> > This information will allow us to make sure that the problem is fully
> > resolved.
>
> Very thing was compiled with gcc-4.0.2 from sid and this is still the
> case.
>
> I'm using Debian's gcc-4.0 package.
>
> $ gcc --version
> gcc (GCC) 4.0.2 20050917 (prerelease) (Debian 4.0.1-8)
>
> gcc-4.0.2 caused the orginal problems
>
> -AND-
>
> Linked against libqt3-mt-3.3.5-1, I still get the segfault.
>
> [KCrash handler]
> #3  0xb6c24b02 in QShared::deref (this=0x46464541) at qshared.h:50
> #4  0xb7021058 in QString::deref (this=0xbfffebec) at
> tools/qstring.cpp:1549 #5  0xb70212e9 in QString::operator=
> (this=0xbfffebec, s=@0xbfffebf4) at tools/qstring.cpp:1594
>
> Install the pwmanager sid debian package. My FAQ has more info.
>
> http://faq.eqenchanters.org/index.php?action=artikel&cat=366315&id=37&art
>lang=en
>
> Where can I download the pwmanager Debian packages?
>
> Add the following to your /etc/apt/sources.list
>
> Unstable (sid)
>  deb ftp://ftp.real-time.com/linux/real-time-debpool sid custom
>  deb-src ftp://ftp.real-time.com/linux/real-time-debpool sid custom
>
> $ sudo apt-get update
> $ sudo apt-get install pwmanager
>
> Once you have pwmanager installed, try to
>
> Edit->Add Entry
>
> Description: Crash Me
> Category: (drop down, just pick one)
> Username: segfault
> Password: crashing
>
> Click Ok.
>
> Click Save icon on the toolbar (segfault)
> OR
> File->Save (segfault)
>
>
>
> Kmail
>
> Get a bunch of messages, get to the top of the messages, and hit delete
> as fast as you can.


Please CC the bug report in future, thanks.

Hmmm, all is stable here running pwmanager.

> Kmail
>
> Get a bunch of messages, get to the top of the messages, and hit delete
> as fast as you can.

This might be an unrelated KMail issue - I have the faintest recollection of 
this being an upstream bug. But, if you can't reproduce the problem in 
earlier kmail packages, then perhaps not. It might still be related to 
whatever is causing your pwmanager crashes, however.

That said, unless someone else comes forward reporting similar issues, I 
suspect that there is something particular to your machine that is causing 
the issues - something untransitioned, perhaps.

Cheers,
Christopher Martin

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