| Summary: | Xinerama causes segfault on keypress on xserver-1.6.0 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | Adam Golebiowski <adamg> | ||||||
| Component: | Server/General | Assignee: | Keith Packard <keithp> | ||||||
| Status: | RESOLVED FIXED | QA Contact: | Xorg Project Team <xorg-team> | ||||||
| Severity: | normal | ||||||||
| Priority: | medium | CC: | adamg, bryce, drewp, jared.bunting, peter.hutterer, phil | ||||||
| Version: | unspecified | ||||||||
| Hardware: | x86 (IA32) | ||||||||
| OS: | Linux (All) | ||||||||
| Whiteboard: | |||||||||
| i915 platform: | i915 features: | ||||||||
| Attachments: |
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Description
Adam Golebiowski
2009-03-09 03:49:40 UTC
please run "addr2line -e /path/to/Xorg 0x808faf7" Did an upgrade today so a new backtrace (addresses changed):
Backtrace:
0: /usr/bin/Xwrapper(xorg_backtrace+0x39) [0x81595a1]
1: /usr/bin/Xwrapper(xf86SigHandler+0x9e) [0x80d8262]
2: [0xb7ff4400]
3: /usr/bin/Xwrapper [0x8094f4a]
4: /usr/bin/Xwrapper [0x8095103]
5: /usr/bin/Xwrapper [0x8095a97]
6: /usr/bin/Xwrapper [0x80962f6]
7: /usr/bin/Xwrapper [0x80964ee]
8: /usr/bin/Xwrapper [0x8095764]
9: /usr/bin/Xwrapper(CheckMotion+0x48) [0x8099797]
10: /usr/bin/Xwrapper(ProcessOtherEvent+0x16e) [0x81c2652]
11: /usr/bin/Xwrapper(XkbHandleActions+0x736) [0x81fe26f]
12: /usr/bin/Xwrapper(XkbProcessKeyboardEvent+0x4f2) [0x81fec8a]
13: /usr/bin/Xwrapper(AccessXFilterPressEvent+0x453) [0x81f2d05]
14: /usr/bin/Xwrapper(ProcessKeyboardEvent+0x1bb) [0x81fee4b]
15: /usr/bin/Xwrapper(mieqProcessInputEvents+0x3d9) [0x813581f]
16: /usr/bin/Xwrapper(ProcessInputEvents+0x17) [0x80d7c20]
17: /usr/bin/Xwrapper(Dispatch+0x6f) [0x8084a75]
18: /usr/bin/Xwrapper(main+0x53c) [0x806b2f0]
19: /lib/libc.so.6(__libc_start_main+0xee) [0xb7c4d6ee]
[adamg@ankh-th tmp]$ addr2line -e /usr/bin/Xorg 0x8099797
/usr/src/debug/xorg-server-1.6.0/dix/events.c:2555
[adamg@ankh-th tmp]$
That corresponds to:
[adamg@ankh-th tmp]$ cat -n /usr/src/debug/xorg-server-1.6.0/dix/events.c | head -n 2560 | tail -n 10
2551 prevSpriteWin = pSprite->win;
2552
2553 #ifdef PANORAMIX
2554 if(!noPanoramiXExtension)
2555 return XineramaCheckMotion(xE, pDev);
2556 #endif
2557
2558 if (xE && !syncEvents.playingEvents)
2559 {
2560 /* GetPointerEvents() guarantees that pointer events have the correct
[adamg@ankh-th tmp]$
Similar crash here, with xinerama and Rotate CW: http://bigasterisk.com/post/xorg-20557-xorg-log http://bigasterisk.com/post/xorg-20557-xorg-conf I get a very repeatable crash if I hold any key and make it repeat. I also get a crash if I restart my fvwm (which normally does not restart X). Also seeing this bug: Backtrace: 0: /usr/bin/Xorg(xorg_backtrace+0x26) [0x4f00a6] 1: /usr/bin/Xorg(xf86SigHandler+0x39) [0x49c149] 2: /lib/libc.so.6 [0x7fc566508150] 3: /usr/bin/Xorg [0x4da6c5] 4: /usr/bin/Xorg [0x455628] 5: /usr/bin/Xorg [0x4577be] 6: /usr/bin/Xorg(CheckMotion+0x9b) [0x45904b] 7: /usr/bin/Xorg(ProcessOtherEvent+0x2d9) [0x53e559] 8: /usr/bin/Xorg(XkbHandleActions+0x21b) [0x5653db] 9: /usr/bin/Xorg(XkbProcessKeyboardEvent+0x116) [0x565c16] 10: /usr/bin/Xorg [0x55ddd4] 11: /usr/bin/Xorg [0x55de7c] 12: /usr/bin/Xorg [0x4ed908] 13: /usr/bin/Xorg(WaitForSomething+0x56b) [0x4edf5b] 14: /usr/bin/Xorg(Dispatch+0x80) [0x44d6d0] 15: /usr/bin/Xorg(main+0x3bd) [0x4338ad] 16: /lib/libc.so.6(__libc_start_main+0xe6) [0x7fc5664f4546] 17: /usr/bin/Xorg [0x432d39] Tri-head Xinerama setup. *** Bug 20744 has been marked as a duplicate of this bug. *** Created attachment 24220 [details] [review] 0001-dix-ignore-non-pointer-events-in-XineramaCheckMotio.patch Created attachment 24224 [details] [review] 0001-dix-ignore-non-pointer-events-in-XineramaCheckMotio.patch Updated patch thanks to Julien. The original patch had some unnecessary noise. Xserver no longer segfaults for me with this patch applied. Thanks! I can confirm this - no segfaults anymore for me either. Nominated for 1.6.1, reassigning to keith. |
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