With an upgrade to xserver-1.6.0 my xinerama setup causes segfault of xserver. Config file: http://pld.pastebin.com/m545f79a3 Xorg log: http://pld.pastebin.com/f302a9d50 I start X session with nothing but xterm (happens on gdm login screen too) and press any key, I get following backtrace: Backtrace: 0: /usr/bin/Xorg(xorg_backtrace+0x3b) [0x8123173] 1: /usr/bin/Xorg(xf86SigHandler+0x4d) [0x80bb10d] 2: [0xb7f1b400] 3: /usr/bin/Xorg [0x80b7b0f] 4: /usr/bin/Xorg [0x810d3bd] 5: /usr/bin/Xorg [0x816451a] 6: /usr/bin/Xorg [0x808bcb1] 7: /usr/bin/Xorg(CheckMotion+0x31f) [0x808faf7] 8: /usr/bin/Xorg(ProcessOtherEvent+0x2bd) [0x816d785] 9: /usr/bin/Xorg(XkbHandleActions+0x24e) [0x8194228] 10: /usr/bin/Xorg(XkbProcessKeyboardEvent+0x3a4) [0x8194cdc] 11: /usr/bin/Xorg(AccessXFilterPressEvent+0xfe) [0x818d038] 12: /usr/bin/Xorg(ProcessKeyboardEvent+0x18c) [0x8194f62] 13: /usr/bin/Xorg(mieqProcessInputEvents+0x383) [0x8104213] 14: /usr/bin/Xorg(ProcessInputEvents+0x17) [0x80bbc17] 15: /usr/bin/Xorg(Dispatch+0x6e) [0x8084b1c] 16: /usr/bin/Xorg(main+0x3b0) [0x806b9b5] 17: /lib/libc.so.6(__libc_start_main+0xee) [0xb7b746ee] If I first do a mouseclick, then I am able to log in / use xterm for some time. Eventually, it will segfault again with the same backtrace. Disabling Xinerama helps. I am ready to do some git bisection (1.5.3 worked fine) if that would help.
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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