| Summary: |
crash in XUnionRegion->miRegionCopy->memcpy - when starting compiz with X |
| Product: |
xorg
|
Reporter: |
Joel Bosveld <Joel.Bosveld> |
| Component: |
App/compiz | Assignee: |
David Reveman <reveman> |
| Status: |
RESOLVED
NOTOURBUG
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QA Contact: |
Xorg Project Team <xorg-team> |
| Severity: |
normal
|
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| Priority: |
medium
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Keywords: |
have-backtrace |
| Version: |
git | |
|
| Hardware: |
x86-64 (AMD64) | |
|
| OS: |
Linux (All) | |
|
| Whiteboard: |
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i915 platform:
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i915 features:
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| Attachments: |
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It only happens when I start compiz with X (from a script that is called by xinit/startx/whatever calls the script). If I start X and then start compiz (over ssh or from a gnome-terminal) then it works fine. If started with X compiz will crash once a window is opened (when I start gnome-terminal or glxgears) I have attached the crash output from compiz (thanks to crashhandler plugin). Here is the x part: #4 0x00007f261a5c4db9 in memcpy () from /lib/libc.so.6 #5 0x00007f261b5b1129 in miRegionCopy (dstrgn=0xc61ff0, rgn=0x7fff26427e40) at Region.c:553 No locals. #6 0x00007f261b5b2258 in XUnionRegion (reg1=0xc61ff0, reg2=0x7fff26427e40, newReg=0xc61ff0) at Region.c:1297 No locals. I had a look at the code, and put some fprintf's to try figure out why it was failing. It seems that miRegionCopy would break if destrgn->rects was NULL initially (as memory is only (re)allocated if destrgn->rects != NULL) - however, after patching this (potential) problem, it was still crashing. The debug output indicated that destrgn->rects, rgn->rects were both not NULL, and numRects was 1. Is there any more information I can/should give? Thanks for your attention, Joel.