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Date:      Thu, 03 Jun 2010 07:17:19 -0300
From:      Mario Sergio Fujikawa Ferreira <lioux@FreeBSD.org>
To:        x11@FreeBSD.org
Subject:   Re: kde 3 SIGSEGV inside VNC on XInput_find_display (libXi.so.6)
Message-ID:  <4C07812F.3000308@FreeBSD.org>
In-Reply-To: <4C05ACB7.5020307@FreeBSD.org> (sfid-20100601_22022_0D390647)
References:  <4C05ACB7.5020307@FreeBSD.org> (sfid-20100601_22022_0D390647)

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Hi,

On 01/06/2010 21:58, Mario Sergio Fujikawa Ferreira wrote:
> Hi,
>
> I am unable to run several applications inside tightvnc. Everything
> worked just fine until the last xorg update.
>
> FreeBSD exxodus.fedaykin.here 8.1-PRERELEASE FreeBSD 8.1-PRERELEASE #4:
> Mon May 31 08:11:18 BRT 2010 lioux@exxodus:/usr/obj/usr/src/sys/LIOUX amd64
>
> All broken applications work under normal X (startx). They just break
> inside tightvnc.
>
> I am able to start a KDE 4 session inside tightvnc, although most apps
> crash during KDE startup. However, KDE 3 just won't launch. Moreover,
> opera SIGSEGVs under the running KDE 4.
>
> Ports tree up to date as of yesterday.
>
> A small list of broken applications:
> 1) KDE3
> - kdeinit
> - ksplash
> - kpersonalizer
> - kwin
> 2) Opera 10.10
>
> You may notice a trend of SIGSEGV on XInput_find_display().
>
> I've just done a full 'portupgrade -af' to make sure everything is updated.
>
> Backtraces follow.
>
> Regards,
> Mario Ferreira
>
> $ gdb /usr/local/bin/kdeinit kdeinit.core
> Core was generated by `kdeinit'.
> Program terminated with signal 11, Segmentation fault.
> #0 0x00000008045bdd0f in XInput_find_display () from
> /usr/local/lib/libXi.so.6
> [New Thread 8050041c0 (LWP 100115)]
> (gdb) bt
> #0 0x00000008045bdd0f in XInput_find_display () from
> /usr/local/lib/libXi.so.6
> #1 0x00000008045bbfbb in XListInputDevices () from
> /usr/local/lib/libXi.so.6
> #2 0x0000000802185f0b in qt_init_internal () from
> /usr/local/lib/libqt-mt.so.3
> #3 0x00000008021e985e in QApplication::construct () from
> /usr/local/lib/libqt-mt.so.3
> #4 0x00000008013ede56 in KApplication::KApplication () from
> /usr/local/lib/libkdecore.so.6
> #5 0x00000008053b6b7f in kdemain () from
> /usr/local/lib/libkdeinit_ksmserver.so
> #6 0x0000000000407a33 in execpath_avoid_loops ()
> #7 0x00000000004080c1 in execpath_avoid_loops ()
> #8 0x0000000000408561 in execpath_avoid_loops ()
> #9 0x0000000000408efe in main ()
> (gdb) quit
>
> $ gdb /usr/local/share/opera/bin/opera opera.core
> Core was generated by `opera'.
> Program terminated with signal 11, Segmentation fault.
> #0 0x00000008030f5d0f in XInput_find_display () from
> /usr/local/lib/libXi.so.6
> [New Thread 8044041c0 (LWP 100431)]
> (gdb) bt
> #0 0x00000008030f5d0f in XInput_find_display () from
> /usr/local/lib/libXi.so.6
> #1 0x00000008030f3fbb in XListInputDevices () from
> /usr/local/lib/libXi.so.6
> #2 0x000000080163ff0b in qt_init_internal () from
> /usr/local/lib/libqt-mt.so.3
> #3 0x00000008016a385e in QApplication::construct () from
> /usr/local/lib/libqt-mt.so.3
> #4 0x000000000041fec7 in QGList::count ()
> #5 0x000000000041d8ae in ?? ()
> #6 0x000000000041d70e in ?? ()
> ---Type <return> to continue, or q <return> to quit---quit
> Quit
> (gdb) quit

   I've just posted truss logs for some of the applications at:

http://people.freebsd.org/~lioux/xorg/kpersonalizer-truss.log
http://people.freebsd.org/~lioux/xorg/kwin-truss.log
http://people.freebsd.org/~lioux/xorg/opera-truss.log

   Let me know if there is any further information I can provide.

   Regards,

-- 
Mario S F Ferreira - DF - Brazil - "I guess this is a signature."
feature, n: a documented bug | bug, n: an undocumented feature



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