Hello, Thanks for looking into this!
2009/10/20 Michel Dänzer <[email protected]>: > On Mon, 2009-10-12 at 20:12 +0100, Renato Caldas wrote: >> Hello, >> >> First of all, I'm not subscribed to this list, so please include my >> e-mail in the CC. >> >> When using (trying to use...), kicad I managed to get consistent Xorg >> segmentation faults. I've filed a bug report on fedora's bugzilla: >> https://bugzilla.redhat.com/show_bug.cgi?id=528475. There I've >> included a very basic test case that works all the time. In the >> meantime, I've also got my hands dirty, and tried to debug Xorg using >> gdb. >> >> The symptom is that the function fbBltOne is called with src=0x0, so >> Xorg segfaults as soon as it tries to use src (in LoadBits; at >> fb/fbbltone.c:292). >> >> I've traced its value back to fbPushPixels, where it is created and >> fed to the function chain, in the macro fbGetStipDrawable (defined at >> fb/fb.h:720). >> >> Here pDrawable->type seems to be DRAWABLE_PIXMAP, so _pPix is simply >> cast from pDrawable. Then the _pPix -> devPrivate.ptr is used as >> "src", after a couple of castings and copying around. > > Please provide a full backtrace ('bt full' in gdb) from when the crash > occurs. Attached. I've also attached it to the bug report, just in case. > If you're using EXA, the problem is most likely that some code path > isn't calling exaPrepareAccess(Reg) for the pixmap in question before > calling down to the fb module. I am using EXA. I'll try enabling XAA and report back. Thanks, Renato
gdb_full
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