[Bug 227922] KMail sometimes crashes X when opening the composer

[Manolis Papadakis]

https://bugs.kde.org/show_bug.cgi?id=227922





--- Comment #3 from Manolis Papadakis <manopapad gmail com>  2010-02-28 18:08:37 ---
Got a crash again today. Actually, it happened when I tried to compose an
answer to Ralf's last comment - KMail has a strange sense of humor it seems.
The backtrace was still cryptic, but I tried addr2line as well and I am
attaching the results:

Backtrace:
0: /usr/bin/X (xorg_backtrace+0x3b) [0x80e696b]
1: /usr/bin/X (0x8048000+0x60b75) [0x80a8b75]
2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb770e40c]
3: /usr/bin/X (FindGlyphByHash+0x3c) [0x81b346c]
4: /usr/bin/X (0x8048000+0xcfa22) [0x8117a22]
5: /usr/bin/X (0x8048000+0xca553) [0x8112553]
6: /usr/bin/X (0x8048000+0x2b017) [0x8073017]
7: /usr/bin/X (0x8048000+0x1e95a) [0x806695a]
8: /lib/i686/cmov/libc.so.6 (__libc_start_main+0xe5) [0xb7423b55]
9: /usr/bin/X (0x8048000+0x1e541) [0x8066541]
Segmentation fault at address 0x4

addr2line output (same command as Ralf):
0: xorg_backtrace
/home/bgoglin/debian/git/xserver/xorg-server-1.7.5/build/os/../../os/backtrace.c:46
1: OsSigHandler
/home/bgoglin/debian/git/xserver/xorg-server-1.7.5/build/os/../../os/osinit.c:142
3: FindGlyphByHash
/home/bgoglin/debian/git/xserver/xorg-server-1.7.5/build/render/../../render/glyph.c:263
4: ProcRenderAddGlyphs
/home/bgoglin/debian/git/xserver/xorg-server-1.7.5/build/render/../../render/render.c:1107
5: ProcRenderDispatch
/home/bgoglin/debian/git/xserver/xorg-server-1.7.5/build/render/../../render/render.c:2059
6: Dispatch
/home/bgoglin/debian/git/xserver/xorg-server-1.7.5/build/dix/../../dix/dispatch.c:440
7: main
/home/bgoglin/debian/git/xserver/xorg-server-1.7.5/build/dix/../../dix/main.c:287

Although I'm not sure it's the same binary (backtrace mentions "X", while the
debugging symbols refer to "Xorg"). I forgot to mention that I've been
experiencing the same crash using both fglrx and radeonhd drivers, therefore
it's probably not driver-related. I'll try attaching gdb to X before trying to
reproduce it next time, as explained here:
http://wiki.debian.org/XStrikeForce/XserverDebugging.

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