Perfect mario, that points to the cause of the crash:
#0 0x00228004 in uxa_solid_rects (op=<value optimized out>, dst=0xbe38080,
color=0xbdb73c0, num_rects=4, rects=0xbdb73c8) at ../../uxa/uxa-render.c:1070
solid = 0x0
src = 0x0
Code at this location is:
solid = uxa_acquire_solid(screen, src->pSourcePict);
FreePicture(src, 0);
src = solid;
src_pixmap = uxa_get_offscreen_pixmap(src->pDrawable,
&src_off_x,
&src_off_y);
uxa_acquire_solid() can return 0 for all manner of different reasons, if
it could not create a solid picture. Yet the return value isn't checked
before dereferencing it. Looks like this code has been there for a
while, and doesn't appear to have been fixed in the upstream codebase
(at least, there's no null pointer check).
** Changed in: xorg-server (Ubuntu)
Status: Incomplete => Triaged
** Changed in: xorg-server (Ubuntu)
Assignee: (unassigned) => Bryce Harrington (bryce)
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https://bugs.launchpad.net/bugs/705078
Title:
Xorg crashed with SIGSEGV in pixman_image_set_has_client_clip()
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