Looks like 1048304 is another dupe of this? 1056511 looks like a very similar backtrace to me as well, even though the driver at the last stage is nouveau rather than cirrus, the rest of it looks the same.
As of todays Quantal update it's stable enough to allow me to login and get a few minutes of useage before failing. Dave -- 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 : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
