Red Hat Bugzilla – Bug 807116
KiCad triggers crash in unaccelerated X server line drawing code
Last modified: 2013-02-26 10:16:36 EST
Description of problem:
Using Kicad's "fill zones" with an unaccelerated X server crashes the server.
Version of X: xorg-x11-server-Xorg-1.11.4-2.fc16
Steps to Reproduce:
1. Right click on zone boundary
2. Choose Zone -> Fill zone
3. X server crashes
Doesn't happen every time, and may depend on the shape of zones.
What's happening is that a call is being made to XDrawLine with parameters which kill the unaccelerated Bresenham line drawing algorithm. The bug was already reported here:
That bug report also has a patch to fix the problem. I have been running xorg-x11-server-Xorg-1.11.4-2.fc16 with that patch applied, and there have been no further crashes, nor can I see any line drawing problems.
It should not be possible to crash the X server under any circumstance. I would suggest including this patch in the build for xorg-x11-server-Xorg as soon as possible.
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