Thank you for reporting this. While the backtrace in Xorg.0.log is useful for seeing where the problem is, it does not tell us everything we want to know. We would therefore like you to obtain a full backtrace.
There are several methods for getting a full backtrace at https://wiki.ubuntu.com/X/Backtracing . My personal favourite is sudo /etc/init.d/gdm stop ulimit -c unlimited sudo /etc/init.d/gdm start and then provoke the crash and get a core file in /etc/X11 and then do the backtrace "offline" with sudo gdb /usr/bin/Xorg /etc/X11/core 2>&1 | tee gdb-Xorg.txt backtrace full You may have to add Section "ServerFlags" Option "NoTrapSignals" "true" EndSection to your xorg.conf for this to work, but I'm not sure. ** Description changed: Binary package hint: xorg Since the upgrade from Intrepid to Jaunty, X will hang randomly. It has happened in Firefox (while scrolling a webpage with the touchpad), OpenOffice (moving mouse and clicking an icon), and Eclipse several times while interacting with UI elements using the mouse pointer. When X hangs, the mouse moves but no UI elements respond. I am not able to switch virtual terminals, and CTRL-ALT-BKSP and CTRL-ALT-DEL do not respond, but CTRL-ALT-PRTSC-S-U-B is able to restart the machine. On the most recent hang, I found that I was able to SSH into the machine. The Xorg.log indicated a likely infinite loop, with the following backtrace: [mi] EQ overflowing. The server is probably stuck in an infinite loop. Backtrace: 0: /usr/X11R6/bin/X(xorg_backtrace+0x3b) [0x813518b] 1: /usr/X11R6/bin/X(mieqEnqueue+0x2d9) [0x8114c89] 2: /usr/X11R6/bin/X(xf86PostButtonEvent+0x105) [0x80d8405] 3: /usr/lib/xorg/modules/input//synaptics_drv.so [0xa6ac1729] 4: /usr/lib/xorg/modules/input//synaptics_drv.so [0xa6ac3bf9] 5: /usr/X11R6/bin/X [0x80c7da7] 6: /usr/X11R6/bin/X [0x80b82cc] 7: [0xb8016400] 8: /usr/lib/libdrm.so.2(drmCommandNone+0x32) [0xb7924ee2] 9: /usr/lib/xorg/modules/drivers//intel_drv.so [0xb78bb68f] 10: /usr/X11R6/bin/X [0x817d1cb] 11: /usr/X11R6/bin/X [0x8145f88] 12: /usr/X11R6/bin/X [0x80f8b98] 13: /usr/X11R6/bin/X(BlockHandler+0x58) [0x80911c8] 14: /usr/X11R6/bin/X(WaitForSomething+0x124) [0x8132974] 15: /usr/X11R6/bin/X(Dispatch+0x7e) [0x808d2be] 16: /usr/X11R6/bin/X(main+0x3bd) [0x80722ed] 17: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe5) [0xb7be2775] 18: /usr/X11R6/bin/X [0x80717a1] [mi] EQ overflowing. The server is probably stuck in an infinite loop. [mi] EQ overflowing. The server is probably stuck in an infinite loop. [...repeats a few dozen times...] [mi] EQ overflowing. The server is probably stuck in an infinite loop. [mi] mieqEnqueue: more than six valuator events; dropping. [...these two repeat in alternation until the machine is rebooted...] I suspect the synaptics driver, since each hang involves interacting with UI elements using the mouse, immediately before the crash. I honestly can't say whether all these crashes happened while using the *touchpad* as opposed to a USB mouse, but the most recent one was the touchpad, and it's entirely possible that all the hangs I've experienced were during touchpad use. Lots of information should be attached via the ubuntu-bug tool -- please let me know if there's anything else I can add. ProblemType: Bug Architecture: i386 DistroRelease: Ubuntu 9.04 Package: xorg 1:7.4~5ubuntu18 ProcEnviron: PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersion: Linux version 2.6.28-12-generic (bui...@rothera) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #43-Ubuntu SMP Fri May 1 19:27:06 UTC 2009 SourcePackage: xorg Uname: Linux 2.6.28-12-generic i686 + + [lspci] + 00:00.0 Host bridge [0600]: Intel Corporation Mobile 915GM/PM/GMS/910GML Express Processor to DRAM Controller [8086:2590] (rev 04) + Subsystem: ASUSTeK Computer Inc. Device [1043:1882] + 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller [8086:2592] (rev 04) + Subsystem: ASUSTeK Computer Inc. Device [1043:1882] ** Tags added: 915gm crash intel xorg -- Xorg infinite loop, backtrace thru synaptics driver https://bugs.launchpad.net/bugs/384333 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
