Sorry for the late reply, I haven't had a crash for five days until today, so I couldn't properly reply to your questions. This mornig crash however has been a little different, since the monitor flashed two times going black, but then the graphical session resumed correctly, I am typing right now from Firefox. In /var/log/Xorg.0.log I have nothing relevant, but in dmesg I have the following lines (I don't know if they are related to a kernel call trace):
[ 6243.620093] radeon 0000:01:00.0: ring 0 stalled for more than 10332msec [ 6243.620109] radeon 0000:01:00.0: GPU lockup (current fence id 0x0000000000000745 last fence id 0x0000000000000746 on ring 0) [ 6243.806159] Failed to wait GUI idle while programming pipes. Bad things might happen. [ 6243.809265] radeon 0000:01:00.0: Saved 43 dwords of commands on ring 0. [ 6243.809284] radeon 0000:01:00.0: (r300_asic_reset:425) RBBM_STATUS=0x80010140 [ 6244.310399] radeon 0000:01:00.0: (r300_asic_reset:444) RBBM_STATUS=0x80010140 [ 6244.807516] radeon 0000:01:00.0: (r300_asic_reset:456) RBBM_STATUS=0x00000140 [ 6244.807556] radeon 0000:01:00.0: GPU reset succeed [ 6244.807562] radeon 0000:01:00.0: GPU reset succeeded, trying to resume [ 6244.822004] radeon 0000:01:00.0: ffff880035b85400 unpin not necessary So this time it seems that GPU reset succeeded fine. I don't have nothing in /var/crash related to what happened. I am glad to provide more details to discover a possible call trace if you suggest me how to do. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1529932 Title: X session crashes with EQ overflowing Status in xorg package in Ubuntu: Incomplete Bug description: On my very old laptop, that is equipped with an Ati Mobility Radeon X700, sometimes (and, sadly, I have to use this word, because I found no regularity pattern for the occurrence of this bug) randomly the desktop session locks, that is I can only move the mouse pointer, but I cannot interact anymore with the desktop session. I am forced to login trough ssh from another pc and to restart the laptop. In Xorg.0.log I found these lines that are, in my opinion, related to the crash: (EE) [mi] EQ overflowing. Additional events will be discarded until existing events are processed. (EE) (EE) Backtrace: (EE) 0: /usr/bin/X (xorg_backtrace+0x4e) [0x5608e56a768e] (EE) 1: /usr/bin/X (mieqEnqueue+0x253) [0x5608e5689373] (EE) 2: /usr/bin/X (QueuePointerEvents+0x52) [0x5608e5563152] (EE) 3: /usr/bin/X (xf86PostMotionEvent+0xd6) [0x5608e559a026] (EE) 4: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7f5e497b3000+0x5322) [0x7f5e497b8322] (EE) 5: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7f5e497b3000+0x73d2) [0x7f5e497ba3d2] (EE) 6: /usr/bin/X (0x5608e54f3000+0x96ac8) [0x5608e5589ac8] (EE) 7: /usr/bin/X (0x5608e54f3000+0xbfc92) [0x5608e55b2c92] (EE) 8: /lib/x86_64-linux-gnu/libc.so.6 (0x7f5e522c9000+0x352f0) [0x7f5e522fe2f0] (EE) 9: /lib/x86_64-linux-gnu/libc.so.6 (ioctl+0x7) [0x7f5e523c60b7] (EE) 10: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmIoctl+0x28) [0x7f5e536ada08] (EE) 11: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmCommandWrite+0x1b) [0x7f5e536b06cb] (EE) 12: /usr/lib/x86_64-linux-gnu/libdrm_radeon.so.1 (0x7f5e4e3ad000+0x19c9) [0x7f5e4e3ae9c9] (EE) 13: /usr/lib/x86_64-linux-gnu/libdrm_radeon.so.1 (0x7f5e4e3ad000+0x1c0c) [0x7f5e4e3aec0c] (EE) 14: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7f5e4e5b9000+0x26236) [0x7f5e4e5df236] (EE) 15: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0x569b) [0x7f5e4d97869b] (EE) 16: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0x7e8f) [0x7f5e4d97ae8f] (EE) 17: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0x11953) [0x7f5e4d984953] (EE) 18: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0xe770) [0x7f5e4d981770] (EE) 19: /usr/bin/X (0x5608e54f3000+0x13ca51) [0x5608e562fa51] (EE) 20: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0xf74f) [0x7f5e4d98274f] (EE) 21: /usr/bin/X (0x5608e54f3000+0x1332a2) [0x5608e56262a2] (EE) 22: /usr/bin/X (0x5608e54f3000+0x5818f) [0x5608e554b18f] (EE) 23: /usr/bin/X (0x5608e54f3000+0x5c34b) [0x5608e554f34b] (EE) 24: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7f5e522e9a40] (EE) 25: /usr/bin/X (_start+0x29) [0x5608e55396c9] (EE) (EE) [mi] These backtraces from mieqEnqueue may point to a culprit higher up the stack. (EE) [mi] mieq is *NOT* the cause. It is a victim. (EE) [mi] EQ overflow continuing. 100 events have been dropped. (EE) (EE) Backtrace: (EE) 0: /usr/bin/X (xorg_backtrace+0x4e) [0x5608e56a768e] (EE) 1: /usr/bin/X (QueuePointerEvents+0x52) [0x5608e5563152] (EE) 2: /usr/bin/X (xf86PostMotionEvent+0xd6) [0x5608e559a026] (EE) 3: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7f5e497b3000+0x5322) [0x7f5e497b8322] (EE) 4: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7f5e497b3000+0x73d2) [0x7f5e497ba3d2] (EE) 5: /usr/bin/X (0x5608e54f3000+0x96ac8) [0x5608e5589ac8] (EE) 6: /usr/bin/X (0x5608e54f3000+0xbfc92) [0x5608e55b2c92] (EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (0x7f5e522c9000+0x352f0) [0x7f5e522fe2f0] (EE) 8: /lib/x86_64-linux-gnu/libc.so.6 (ioctl+0x7) [0x7f5e523c60b7] (EE) 9: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmIoctl+0x28) [0x7f5e536ada08] (EE) 10: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmCommandWrite+0x1b) [0x7f5e536b06cb] (EE) 11: /usr/lib/x86_64-linux-gnu/libdrm_radeon.so.1 (0x7f5e4e3ad000+0x19c9) [0x7f5e4e3ae9c9] (EE) 12: /usr/lib/x86_64-linux-gnu/libdrm_radeon.so.1 (0x7f5e4e3ad000+0x1c0c) [0x7f5e4e3aec0c] (EE) 13: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7f5e4e5b9000+0x26236) [0x7f5e4e5df236] (EE) 14: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0x569b) [0x7f5e4d97869b] (EE) 15: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0x7e8f) [0x7f5e4d97ae8f] (EE) 16: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0x11953) [0x7f5e4d984953] (EE) 17: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0xe770) [0x7f5e4d981770] (EE) 18: /usr/bin/X (0x5608e54f3000+0x13ca51) [0x5608e562fa51] (EE) 19: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0xf74f) [0x7f5e4d98274f] (EE) 20: /usr/bin/X (0x5608e54f3000+0x1332a2) [0x5608e56262a2] (EE) 21: /usr/bin/X (0x5608e54f3000+0x5818f) [0x5608e554b18f] (EE) 22: /usr/bin/X (0x5608e54f3000+0x5c34b) [0x5608e554f34b] (EE) 23: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7f5e522e9a40] (EE) 24: /usr/bin/X (_start+0x29) [0x5608e55396c9] (EE) [ 335.003] [mi] Increasing EQ size to 1024 to prevent dropped events. [ 335.005] [mi] EQ processing has resumed after 151 dropped events. [ 335.005] [mi] This may be caused my a misbehaving driver monopolizing the server's resources. [ 377.274] failed to map pixmap: -1 --- ApportVersion: 2.19.3-0ubuntu2 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: LXDE DistUpgraded: 2016-01-08 14:07:17,902 DEBUG enabling apt cron job DistroCodename: xenial DistroRelease: Ubuntu 16.04 DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] RV410/M26 [Mobility Radeon X700] [1002:5653] (prog-if 00 [VGA controller]) Subsystem: Acer Incorporated [ALI] Aspire 5024WLMi [1025:0080] InstallationDate: Installed on 2015-11-26 (45 days ago) InstallationMedia: Lubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: Acer Aspire 5020 Package: xorg 1:7.7+12ubuntu1 PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.3.0-5-generic root=UUID=4c854a4e-3c70-4b7b-b86d-841d4387937e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.3.0-5.16-generic 4.3.3 Tags: xenial ubuntu UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' Uname: Linux 4.3.0-5-generic x86_64 UpgradeStatus: Upgraded to xenial on 2016-01-08 (2 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 12/19/2005 dmi.bios.vendor: Phoenix dmi.bios.version: V1.20 dmi.board.name: Aspire 5020 dmi.board.vendor: Acer dmi.board.version: Rev.A dmi.chassis.type: 10 dmi.chassis.vendor: N/A dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenix:bvrV1.20:bd12/19/2005:svnAcer:pnAspire5020:pvr-1:rvnAcer:rnAspire5020:rvrRev.A:cvnN/A:ct10:cvrN/A: dmi.product.name: Aspire 5020 dmi.product.version: -1 dmi.sys.vendor: Acer version.compiz: compiz N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.65-3 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.7-1ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.7-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.17.3-2ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.6.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20151217-1~exp1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Sun Jan 10 11:41:29 2016 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Video Bus KEYBOARD, id 7 input Sleep Button KEYBOARD, id 8 input AT Translated Set 2 keyboard KEYBOARD, id 9 input SynPS/2 Synaptics TouchPad TOUCHPAD, id 10 xserver.errors: systemd-logind: failed to get session: PID 956 does not belong to any known session xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.17.3-2ubuntu2 xserver.video_driver: radeon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1529932/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
