| Summary: | "x11perf -wdcircle100 -time 1 -repeat 1 -rop GXxor" crashes X | ||||||||
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| Product: | xorg | Reporter: | David H <david.hedberg> | ||||||
| Component: | Server/Acceleration/EXA | Assignee: | Xorg Project Team <xorg-team> | ||||||
| Status: | RESOLVED FIXED | QA Contact: | Xorg Project Team <xorg-team> | ||||||
| Severity: | normal | ||||||||
| Priority: | medium | CC: | analyzer1, jlt_fdo, pva, trueurssian | ||||||
| Version: | unspecified | ||||||||
| Hardware: | x86-64 (AMD64) | ||||||||
| OS: | Linux (All) | ||||||||
| Whiteboard: | |||||||||
| i915 platform: | i915 features: | ||||||||
| Attachments: |
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This is an EXA bug, a fix is being discussed on the xorg-devel mailing list. This appears to be a bug not (obviously) related to exa. At least not when several other things were fixed (so it's possible you're crashing on something else). For me it crashed in mi/miarc.c:1213, upon dereferencing a arcData0. My initial impression is that arcIndex is out of bounds, but why, i don't know. rop GXCopy works for me now, rop GXxor not, but these patches haven't made it upstream yet. (In reply to comment #2) I'm a little confused by this comment, but it sounds like your patch will actually fix this particular crash, but there's more down the road? If so you can either reassign this back once the patch lands, or resolve it and track the remaining crashes in separate reports. *** Bug 25266 has been marked as a duplicate of this bug. *** Are there any news on this bug? Any known workarounds? I am seeing this bug on an ia32 machine with an x300 radeon card. It started showing when Debian upgraded its xserver-xorg-core package to version 1.7 (and going back fixes the issue). Created attachment 33395 [details]
Xorg.log including the backtrace
I also see this bug both on my desktop (amd64, ATI Technologies Inc Radeon HD 3200 Graphics) and on my notebook (x86, Radeon Mobility 9200 (AGP)).
It happens if I use xfig and draw a circle.
I use xorg-server-1.7.5 and xf86-video-ati (git master commit a3b730eceb522c7ac1ef3dd6f6c7d773118d03f7).
Maarten, any news on the stuff you mentioned in comment #2? I can confirm this bug. An obvious workaround is to add Option "AccelMethod" "XAA" to xorg.conf. The bug also happens when drawing a circle in xfig. Unable to reproduce this with either Xvfb or Xephyr -fakexa. |
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Created attachment 31178 [details] Log/backtrace from X Running "x11perf -wdcircle100 -time 1 -repeat 1 -rop GXxor" seems to be a sure way to crash X. The crash was originally found triggered by running a certain application in wine, but as far as I could determine back when I investigated it, this is the exact same crash. I'm using a HD3200 IGP, and while I'm currently running xf86-video-ati from todays git and xorg-server-1.7.1, this same (I think) bug has actually been present for at least a few months. Log from Xorg including backtrace attached.