Things also became better with the Cirrus driver and VMs. After being able to login I noticed that my KVM VM (which runs on a rather power efficient, iow not too fast, machine) still has occasional crashes of this type. And there you can see (and have to wait) every graphical "goodness" like fading in and out or docking. While the host I run the Xen VM (which uses the same cirrus emulation) runs rather smoothly (because it has more CPU power) and I think I did not see any crash, yet. That somehow leads me to believe this could be a problem (in the cirrus case) of the communication between X driver, llvm-pipe and the emulated card being overrun in some way. Not sure how this relates to the nouveau case. I would not think the X driver could be too fast for the 3D pipe in hardware. But maybe this gives X driver people a hint.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1043513 Title: Xorg crashed with SIGABRT in memcpy() via cirRefreshArea() under KVM virtual machine Status in “xorg-server” package in Ubuntu: Confirmed Bug description: No login possible on KVM-based virtual machine (with virt-manager) and network settings Source device: Host device eth2 : macvtap Device model: virtio Source mode: VEPA With source mode set to "Default" it works. ProblemType: Crash DistroRelease: Ubuntu 12.10 Package: xserver-xorg-core 2:1.12.99.905-0ubuntu3 ProcVersionSignature: Ubuntu 3.5.0-13.13-generic 3.5.3 Uname: Linux 3.5.0-13-generic x86_64 ApportVersion: 2.5.1-0ubuntu3 Architecture: amd64 CrashCounter: 1 CurrentDmesg: [ 3.809292] init: plymouth-stop pre-start process (1197) terminated with status 1 [ 5.314446] hda-intel: Invalid position buffer, using LPIB read method instead. [ 9.269441] hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj. Date: Wed Aug 29 22:04:57 2012 DistUpgraded: Fresh install DistroCodename: quantal DistroVariant: ubuntu ExecutablePath: /usr/bin/Xorg GraphicsCard: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller]) Subsystem: Red Hat, Inc Device [1af4:1100] InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: Bochs Bochs ProcCmdline: /usr/bin/X :0 -core -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch ProcEnviron: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-13-generic root=UUID=2258d315-c1f3-4f2c-b925-01ab5cdf448d ro quiet splash vt.handoff=7 Signal: 6 SourcePackage: xorg-server StacktraceTop: ?? () from /lib/x86_64-linux-gnu/libc.so.6 cirRefreshArea () from /usr/lib/xorg/modules/drivers/cirrus_drv.so ?? () from /usr/lib/xorg/modules/libshadowfb.so ?? () ?? () Title: Xorg crashed with SIGABRT in cirRefreshArea() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: dmi.bios.date: 01/01/2007 dmi.bios.vendor: Bochs dmi.bios.version: Bochs dmi.chassis.type: 1 dmi.chassis.vendor: Bochs dmi.modalias: dmi:bvnBochs:bvrBochs:bd01/01/2007:svnBochs:pnBochs:pvr:cvnBochs:ct1:cvr: dmi.product.name: Bochs dmi.sys.vendor: Bochs version.compiz: compiz 1:0.9.8+bzr3319-0ubuntu3 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.38-0ubuntu2 version.libgl1-mesa-dri: libgl1-mesa-dri 9.0~git20120821.c1114c61-0ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.0~git20120821.c1114c61-0ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.12.99.905-0ubuntu3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120713.6ef1ad6a-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.3-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.1-4~ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1043513/+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
