(In reply to comment #55) > Created attachment 74005 [details] > Xorg.0.log with intel_drv.so 2.20.8 > > Sorry for the delay, it's awfully confusing that we're both called Chris > Wilson, I didn't realise that you'd replied to my comment :) > > Here is Xorg.0.log, hopefully showing that the driver running is 2.20.8 (so > with the patch)? > > I haven't been running xrestop, sorry. I've just started. Even if this is a > client pixmap leak, surely one app shouldn't be able to bring down my > desktop? Wouldn't that be a bug, perhaps in X itself rather than the Intel > driver? But I've never seen anything like this happen with any other > graphics card or system in 15 years of using Linux on the desktop.
It's a Denial-of-Service. There's a limited address space for mmapping of buffers, so that if the client does leak, eventually we will not be able to map a new buffer and it will remain blank. (KDE is full of such examples, or at least one sufficiently common one.) We've harden the kernel to recover as much of that space as possible, but that is limited by the guarantees given by the userspace API. On the other side, it is possible to use alternative fallback methods if the mmapping fails, that hardening is present in SNA. Nevertheless, the side-effects will remain unpleasant until the source of the bug is found. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1053959 Title: Corrupt display after a while (after resume?) on intel graphics Status in X.org xf86-video-intel: Fix Released Status in “xserver-xorg-video-intel” package in Ubuntu: New Bug description: I'm using a Thinkpad X201 with Intel graphics: chris@lap-x201:~$ lspci -vvv -s 00:02.0 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device 215a Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 42 Region 0: Memory at f2000000 (64-bit, non-prefetchable) [size=4M] Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at 1800 [size=8] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: i915 Kernel modules: i915 chris@lap-x201:~$ lspci -vvvn -s 00:02.0 00:02.0 0300: 8086:0046 (rev 02) (prog-if 00 [VGA controller]) Subsystem: 17aa:215a Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 42 Region 0: Memory at f2000000 (64-bit, non-prefetchable) [size=4M] Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at 1800 [size=8] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: i915 Kernel modules: i915 I usually notice this problem after several days of use, which would normally include several suspend and resume cycles and (dis)connections of an external monitor. chris@lap-x201:~$ lsb_release -rd Description: Ubuntu 12.04.1 LTS Release: 12.04 chris@lap-x201:~$ apt-cache policy xserver-xorg-video-intel xserver-xorg-video-intel: Installed: 2:2.17.0-1ubuntu4.1 Candidate: 2:2.17.0-1ubuntu4.1 Version table: *** 2:2.17.0-1ubuntu4.1 0 500 http://gb.archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages 100 /var/lib/dpkg/status 2:2.17.0-1ubuntu4 0 500 http://gb.archive.ubuntu.com/ubuntu/ precise/main i386 Packages [ 75101.039] (II) intel(0): [DRI2] Setup complete [ 75101.039] (II) intel(0): [DRI2] DRI driver: i965 [ 75101.039] (II) intel(0): Allocated new frame buffer 1280x800 stride 5120, tiled [ 75101.050] (II) UXA(0): Driver registered support for the following operations: [ 75101.050] (II) solid [ 75101.050] (II) copy [ 75101.050] (II) composite (RENDER acceleration) [ 75101.050] (II) put_image [ 75101.050] (II) get_image [ 75101.050] (==) intel(0): Backing store disabled [ 75101.050] (==) intel(0): Silken mouse enabled [ 75101.050] (II) intel(0): Initializing HW Cursor [ 75101.333] (II) intel(0): RandR 1.2 enabled, ignore the following RandR disabled message. [ 75101.336] (==) intel(0): DPMS enabled [ 75101.336] (==) intel(0): Intel XvMC decoder enabled [ 75101.336] (II) intel(0): Set up textured video [ 75101.341] (II) intel(0): [XvMC] xvmc_vld driver initialized. [ 75101.341] (II) intel(0): direct rendering: DRI2 Enabled [ 75101.341] (==) intel(0): hotplug detection: "enabled" [ 75101.363] (II) AIGLX: enabled GLX_MESA_copy_sub_buffer [ 75101.363] (II) AIGLX: enabled GLX_INTEL_swap_event [ 75101.363] (II) AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control [ 75101.363] (II) AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects [ 75101.363] (II) AIGLX: Loaded and initialized i965 [ 75101.363] (II) GLX: Initialized DRI2 GL provider for screen 0 [ 75101.364] (II) intel(0): Setting screen physical size to 338 x 211 ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xserver-xorg-video-intel 2:2.17.0-1ubuntu4.1 Uname: Linux 3.6.0-030600rc6-generic i686 .tmp.unity.support.test.0: ApportVersion: 2.0.1-0ubuntu12 Architecture: i386 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,grid,clone,regex,resize,animation,gnomecompat,snap,workarounds,vpswitch,fadedesktop,imgpng,mousepoll,move,place,ezoom,session,staticswitcher,fade,cube,scale,gears] CompositorRunning: compiz Date: Fri Sep 21 11:44:24 2012 DistUpgraded: 2012-08-25 13:19:45,909 DEBUG enabling apt cron job DistroCodename: precise DistroVariant: ubuntu EcryptfsInUse: Yes ExtraDebuggingInterest: Yes, even including gdb or git bisection work if needed GraphicsCard: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:215a] MachineType: LENOVO 3323DAG ProcEnviron: LANGUAGE=en_GB:en TERM=xterm PATH=(custom, user) LANG=en_GB.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.6.0-030600rc6-generic root=UUID=3d626876-a6a6-4378-b989-3acdf40c39c7 ro quiet splash resume=/dev/sda5 vt.handoff=7 SourcePackage: xserver-xorg-video-intel UdevDb: Error: [Errno 2] No such file or directory UpgradeStatus: Upgraded to precise on 2012-08-25 (26 days ago) dmi.bios.date: 12/17/2010 dmi.bios.vendor: LENOVO dmi.bios.version: 6QET62WW (1.32 ) dmi.board.name: 3323DAG dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6QET62WW(1.32):bd12/17/2010:svnLENOVO:pn3323DAG:pvrThinkPadX201:rvnLENOVO:rn3323DAG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3323DAG dmi.product.version: ThinkPad X201 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.7.8-0ubuntu1.4 version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.3+8.0.2-0ubuntu3.2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.3+8.0.2-0ubuntu3.2 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.7 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2 To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1053959/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
