Bug#407007: x11-common: random X crashes - miSetShape

[Calum Mackay <calum.mackay@cdmnet.org>]

hi Michel,

some progress at last; appended.

I did notice that it happened as Thunderbird (nightly cvs build) popped 
up its "biff" window, which appeared, but did not get painted. I was not 
moving the mouse at the time of the crash, nor were there any other 
screen updates occurring. I have a vague impression that this matches 
previous instances, but can't be sure.

Awaiting further instructions.

cheers,
calum.


Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1211423040 (LWP 12680)]
0x081167da in miRegionDestroy ()

(gdb) bt
#0  0x081167da in miRegionDestroy ()
#1  0x0812210d in miSetShape ()
#2  0x0812d357 in ShapeExtensionInit ()
#3  0x0812d794 in ShapeExtensionInit ()
#4  0x08086cab in Dispatch ()
#5  0x0806e699 in main ()


eax            0x0      0
ecx            0x8433f28        138624808
edx            0x94bb2b8        155955896
ebx            0x81c25f0        136062448
esp            0xbfe45fe0       0xbfe45fe0
ebp            0xbfe45ff8       0xbfe45ff8
esi            0x0      0
edi            0x94bb2b8        155955896
eip            0x81167da        0x81167da <miRegionDestroy+26>
eflags         0x13216  [ PF AF IF #12 #13 RF ]
cs             0x73     115
ss             0x7b     123
ds             0x7b     123
es             0x7b     123
fs             0x0      0
gs             0x33     51
st0            -nan(0xdcdad500dcdad5)   (raw 0xffff00dcdad500dcdad5)
st1            -nan(0xdcdad500dcdad5)   (raw 0xffff00dcdad500dcdad5)
st2            -nan(0xdcdad500dcdad5)   (raw 0xffff00dcdad500dcdad5)
st3            -nan(0xdcdad500dcdad5)   (raw 0xffff00dcdad500dcdad5)
st4            -nan(0xdcdad500dcdad5)   (raw 0xffff00dcdad500dcdad5)
st5            -nan(0xdcdad500dcdad5)   (raw 0xffff00dcdad500dcdad5)
st6            -nan(0xdcdad500dcdad5)   (raw 0xffff00dcdad500dcdad5)