Bug#242427: further information on X server crash (with patch)
I found a fairly reliable way to reproduce this - log in and hold down
CTRL-F1 which in my window manager (sawfish) starts a pterm. I was able
to get a backtrace this time, having installed the debug version of the
server.
AFAICS the problem is that an XKB-related bug fix doesn't take into
account the possibility that you used the -kb option when invoking the
server. (Turning XKB back on makes the crash go away but also breaks
all my keyboard configuration.)
I'm attempting a rebuild with this patch. I'll let the bug report know
how it goes.
------------------------------------------------------------------------
--- xc/programs/Xserver/dix/events.c~ 2004-04-06 20:01:52.000000000 +0100
+++ xc/programs/Xserver/dix/events.c 2004-04-06 20:30:39.000000000 +0100
@@ -991,7 +991,7 @@
#ifdef XKB
/* Fix for key repeating bug. */
- if (xE->u.u.type == KeyRelease)
+ if (xE->u.u.type == KeyRelease && device->key->xkbInfo)
AccessXCancelRepeatKey(device->key->xkbInfo, xE->u.u.detail);
#endif
------------------------------------------------------------------------
ttfn/rjk
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This GDB was configured as "i386-linux"...
warning: core file may not match specified executable file.
Core was generated by `/usr/X11R6/bin/X -dpi 75 -nolisten tcp -kb +bs -deferglyphs all -auth /var/lib/'.
Program terminated with signal 6, Aborted.
Reading symbols from /usr/lib/libfreetype.so.6...done.
Loaded symbols for /usr/lib/libfreetype.so.6
Reading symbols from /usr/lib/libz.so.1...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /lib/libm.so.6...done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/libnss_files.so.2...done.
Loaded symbols for /lib/libnss_files.so.2
#0 0x400f1571 in kill () from /lib/libc.so.6
(gdb) dir /export/sources/xfree86-4.3.0/build-tree/xc/programs/Xserver/dix
Source directories searched: /export/sources/xfree86-4.3.0/build-tree/xc/programs/Xserver/dix:$cdir:$cwd
(gdb) fr 9
#9 0x0848f58d in EnqueueEvent (xE=0xbffff720, device=0x8b61a28, count=1)
at events.c:995
warning: Source file is more recent than executable.
995 AccessXCancelRepeatKey(device->key->xkbInfo, xE->u.u.detail);
(gdb) print device->key->xkbInfo
$1 = (struct _XkbSrvInfo *) 0x0
(gdb) quit
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