qt4 and xcb

[Gabriel C]

S.Çağlar Onur wrote:
> 22 Şub 2007 Per tarihinde, S.Çağlar Onur şunları yazmıştı: 
>   
>>> We are using vanilla qt4 yes.
>>>       
>> qt-copy patches seems not responsible at first sight, recompiling qt4 much
>> more sense to me. Thanks for advice.
>>     
>
> Still no luck, recompiling with debug symbols gaves following backtrace (all 
> examples bundles with qt source also gaves same bt);
>
> [caglar at zangetsu][~]> ldd /usr/bin/designer-qt4 | grep xcb
>         libxcb-xlib.so.0 => /usr/lib/libxcb-xlib.so.0 (0xb6ee6000)
>         libxcb.so.1 => /usr/lib/libxcb.so.1 (0xb6ecd000)
>
> [caglar at zangetsu][~]> gdb designer-qt4
> GNU gdb 6.5
> Copyright (C) 2006 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "i686-pc-linux-gnu"...(no debugging symbols found)
> Using host libthread_db library "/lib/libthread_db.so.1".
>
> (gdb) run -dograb
> Starting program: /usr/bin/designer-qt4 -dograb
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> [Thread debugging using libthread_db enabled]
> [New Thread -1225111856 (LWP 11903)]
> designer-qt4: xcb_xlib.c:41: xcb_xlib_lock: Sav `!c->xlib.lock' başarısızlığa 
> uğradı.
>
> Program received signal SIGABRT, Aborted.
> [Switching to Thread -1225111856 (LWP 11903)]
> 0xb7fd57f2 in QWidget::inputMethodEvent () from /lib/ld-linux.so.2
> (gdb) bt
> #0  0xb7fd57f2 in QWidget::inputMethodEvent () from /lib/ld-linux.so.2
> #1  0xb701cffe in raise () from /lib/libc.so.6
> #2  0xb711eff4 in ?? () from /lib/libc.so.6
> #3  0xb6fa46d0 in ?? ()
> #4  0xb701e8ce in abort () from /lib/libc.so.6
> #5  0x080fba90 in ?? ()
> #6  0xb7120120 in __after_morecore_hook () from /lib/libc.so.6
> #7  0x0000005e in ?? ()
> #8  0xb705cd31 in realloc () from /lib/libc.so.6
> #9  0xb7120120 in __after_morecore_hook () from /lib/libc.so.6
> #10 0x080fba90 in ?? ()
> #11 0x0000005e in ?? ()
> #12 0x080fba88 in ?? ()
> #13 0x00000068 in ?? ()
> #14 0x080fba90 in ?? ()
> #15 0xb711eff4 in ?? () from /lib/libc.so.6
> #16 0x0000005e in ?? ()
> #17 0x080fba90 in ?? ()
> #18 0x0000005d in ?? ()
> #19 0xb7051f31 in vasprintf () from /lib/libc.so.6
> #20 0x080fba90 in ?? ()
> #21 0x0000005e in ?? ()
> #22 0xbfe26080 in ?? ()
> #23 0x080fba90 in ?? ()
> #24 0x00000000 in ?? ()
> (gdb)  
>
> Could you please check your qt4/qt4 apps linked against libxcb?

Well they are :

crazy at zwerg:~/K$ ldd /usr/bin/designer|grep xcb
libxcb-xlib.so.0 => /usr/lib/libxcb-xlib.so.0 (0xb70f4000)
libxcb.so.1 => /usr/lib/libxcb.so.1 (0xb6fbc000)


Gabriel