Public bug reported: Binary package hint: xserver-xorg-video-nouveau
I got back to my machine in the morning to find that the display showed a slightly corrupted opengl screensaver image with the following text at the top of the screen: gltext:../../nouveau/nouveau_pushbuf.c:273: nouveau_pushbuf_flush: Assertion `!nouveau_pushbuf_space(chan,min)' failed. xscreensaver: 19:48:14: 0: child pid 5290 (gltext) terminated with signal 6. The keyboard is dead in a 'scroll lock/numlock don't change the LEDs' sort of way. I can still ssh into the machine and X is still running (using 66% CPU) along with all my other apps and processes. xscreensaver master process is still running too. It does not respond to DISPLAY=:0 xscreensaver-command -deactivate (or -version) stracing the command shows:(snipping a load of startup file checking): ... socket(PF_FILE, SOCK_STREAM|SOCK_CLOEXEC, 0) = 3 connect(3, {sa_family=AF_FILE, path=@"/tmp/.X11-unix/X0"}, 20) = 0 getpeername(3, {sa_family=AF_FILE, path=@"/tmp/.X11-unix/X0"}, [20]) = 0 uname({sys="Linux", node="e102475-lin", ...}) = 0 access("/home/wookey/.Xauthority", R_OK) = 0 open("/home/wookey/.Xauthority", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f37c42e7000 read(4, "", 4096) = 0 close(4) = 0 munmap(0x7f37c42e7000, 4096) = 0 fcntl(3, F_GETFL) = 0x2 (flags O_RDWR) fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 fcntl(3, F_SETFD, FD_CLOEXEC) = 0 poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}]) writev(3, [{"l\0\v\0\0\0\0\0\0\0\0\0", 12}, {"", 0}], 2) = 12 read(3, 0x1440590, 8) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}], 1, -1 <unfinished ...> Which seems to shwo that the X socket simply isn't responding, so the server is dead to useful activity. hupping the X process doesn't help. restarting gdm (and thus X) makes the display fill with random stuff (lots of little tiles of X stuff) but the keyboard is still dead. Only rebooting the machine gets you back to a useful state. This appears to be the same bug as https://bugs.launchpad.net/ubuntu/+source/extremetuxracer/+bug/612971 provoked by a different app, and extremely similar to the older (Karmic) https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/586714 ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: xscreensaver 5.11-1ubuntu2 ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic x86_64 Architecture: amd64 Date: Thu Nov 11 11:13:31 2010 ProcEnviron: SHELL=/bin/bash LANG=en_GB.UTF-8 SourcePackage: xscreensaver ** Affects: xserver-xorg-video-nouveau (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug maverick -- xscreensaver crashed (display and keyboard dead) on nouveau assertion https://bugs.launchpad.net/bugs/673977 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nouveau in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp