Comment 4 for bug 944626

I'm getting this more often as well and it's about one of the most annoying bugs I have *ever* experienced.

Here's my backtrace:

Backtrace:
[ 12549.977] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7f18af4362f6]
[ 12549.977] 1: /usr/bin/X (0x7f18af2ae000+0x18c19a) [0x7f18af43a19a]
[ 12549.977] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f18ae5d4000+0xfcb0) [0x7f18ae5e3cb0]
[ 12549.977] 3: /lib/x86_64-linux-gnu/libc.so.6 (0x7f18ad44a000+0x14c321) [0x7f18ad596321]
[ 12549.977] 4: /usr/bin/X (WriteToClient+0x202) [0x7f18af4398e2]
[ 12549.977] 5: /usr/bin/X (WriteEventsToClient+0x24a) [0x7f18af30638a]
[ 12549.977] 6: /usr/bin/X (TryClientEvents+0x106) [0x7f18af3064f6]
[ 12549.977] 7: /usr/bin/X (0x7f18af2ae000+0x5bd12) [0x7f18af309d12]
[ 12549.977] 8: /usr/bin/X (DeliverEventsToWindow+0x1cb) [0x7f18af309f4b]
[ 12549.977] 9: /usr/bin/X (DeliverEvents+0x133) [0x7f18af30ae93]
[ 12549.977] 10: /usr/bin/X (DeleteWindow+0x20b) [0x7f18af32884b]
[ 12549.977] 11: /usr/bin/X (0x7f18af2ae000+0x6f302) [0x7f18af31d302]
[ 12549.978] 12: /usr/bin/X (FreeClientResources+0x6a) [0x7f18af31e03a]
[ 12549.978] 13: /usr/bin/X (CloseDownClient+0x5a) [0x7f18af2fbbaa]
[ 12549.978] 14: /usr/bin/X (0x7f18af2ae000+0x4e736) [0x7f18af2fc736]
[ 12549.978] 15: /usr/bin/X (0x7f18af2ae000+0x3d64a) [0x7f18af2eb64a]
[ 12549.978] 16: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7f18ad46b76d]
[ 12549.978] 17: /usr/bin/X (0x7f18af2ae000+0x3d93d) [0x7f18af2eb93d]
[ 12549.978] Segmentation fault at address 0xffffffffb09485b0
[ 12549.978]
Caught signal 11 (Segmentation fault). Server aborting