Package: xorg Version: 1:7.5+6 Severity: important
X with xserver-xorg-video-intel is no longer usable: is causes memory corruption which can only be solved by restarting X every week or so. A little bit of googling suggests this is related to DRI corrupting kernel memory, so I am not sure if this is kernel or X bug, please retarget as necessary. Symptoms: SUnreclaim slab increases by about 1 MB per minute, yielding about 1 GB of SUnreclaim within two weeks. This can be slowed down by not doing anything or speeded up by opening windows, moving them around, causing a program to draw stuff on screen etc. Basically any use of X increases the rate of memory corruption while just letting it idle (without a screensaver!) slows it down. Of course, slowing memory corruption speed down by doing nothing is not quite acceptable - if I did no want to do anything with X, I would not start X in the first place. Curiously, setting "DRI" and "DRI2" to "False" and "NoAccel" to "True" do not seem to disable direct rendering: glxinfo still says; "direct rendering: Yes". What else do I need to turn off to make X usable again? Here are the values of the relevant parts on /proc/meminfo right after logging off X but not yet shutting down kdm (i.e. X is still running) and immediately after shutting down kdm (and therefore X, too): Before: MemFree: 390412 kB Buffers: 0 kB Cached: 442828 kB SwapCached: 52508 kB Active: 182880 kB Inactive: 405552 kB Active(anon): 88712 kB Inactive(anon): 110184 kB Active(file): 94168 kB Inactive(file): 295368 kB AnonPages: 101876 kB Mapped: 30536 kB Slab: 976616 kB SReclaimable: 23784 kB SUnreclaim: 952832 kB After: MemFree: 1460024 kB Buffers: 0 kB Cached: 395244 kB SwapCached: 41652 kB Active: 106172 kB Inactive: 344176 kB Active(anon): 11348 kB Inactive(anon): 49228 kB Active(file): 94824 kB Inactive(file): 294948 kB AnonPages: 21496 kB Mapped: 11620 kB Slab: 47056 kB SReclaimable: 23716 kB SUnreclaim: 23340 kB The culprit is kmalloc-32 according to slabinfo. Unfortunately I forgot to save its output. Its size was about 940MB anyway. I will be happy to provide more info as soon as the slab grows again in a few days. :/ -Juha P.S. I realise my xserver-xorg-video-intel is from experimental, but the older versions have been even less usable: mostly crashing or completely freezing at random (see #575965 for example). -- System Information: Debian Release: squeeze/sid APT prefers unstable APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 2.6.34 (SMP w/2 CPU cores) Locale: LANG=C, LC_CTYPE=C (charmap=UTF-8) (ignored: LC_ALL set to en_GB.UTF-8) Shell: /bin/sh linked to /bin/bash Versions of packages xorg depends on: ii konsole [x-terminal-emulator] 4:4.4.3-1 X terminal emulator for KDE 4 ii libgl1-mesa-dri 7.7.1-2 A free implementation of the OpenG ii libgl1-mesa-glx [libgl1] 7.7.1-2 A free implementation of the OpenG ii libglu1-mesa 7.7.1-2 The OpenGL utility library (GLU) ii lxterminal [x-terminal-emulat 0.1.7-1 desktop independent vte-based term ii rxvt-unicode [x-terminal-emul 9.07-2 RXVT-like terminal emulator with U ii x11-apps 7.5+5 X applications ii x11-session-utils 7.5+1 X session utilities ii x11-utils 7.5+3 X11 utilities ii x11-xfs-utils 7.4+1 X font server utilities ii x11-xkb-utils 7.5+2 X11 XKB utilities ii x11-xserver-utils 7.5+1 X server utilities ii xauth 1:1.0.4-1 X authentication utility ii xfonts-100dpi 1:1.0.1 100 dpi fonts for X ii xfonts-75dpi 1:1.0.1 75 dpi fonts for X ii xfonts-base 1:1.0.1 standard fonts for X ii xfonts-scalable 1:1.0.1-1 scalable fonts for X ii xfonts-utils 1:7.5+2 X Window System font utility progr ii xinit 1.2.0-1 X server initialisation tool ii xkb-data 1.8-1 X Keyboard Extension (XKB) configu ii xorg-docs-core 1:1.5-1 Core documentation for the X.org X ii xserver-xorg 1:7.5+6 the X.Org X server ii xterm [x-terminal-emulator] 258-1 X terminal emulator xorg recommends no packages. Versions of packages xorg suggests: ii xorg-docs 1:1.5-1 Miscellaneous documentation for th -- no debconf information -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20100612214124.16508.1754.report...@localhost.localdomain
