This happens on logging in with Gnome (full effects) and Ubuntu and
using for a few minutes, then crashes. 

Regards
Alex

On Mon, 2012-10-22 at 12:43 +0000, Maarten Lankhorst wrote:
> How can I reproduce this easily?
> 
> ** Changed in: xserver-xorg-video-nouveau (Ubuntu Quantal)
>        Status: Confirmed => Incomplete
> 
> -- 
> You received this bug notification because you are subscribed to a
> duplicate bug report (1045115).
> https://bugs.launchpad.net/bugs/1033533
> 
> Title:
>   Xorg crashed with SIGABRT: exaMemcpyBox with src=0x0 on nouveau with
>   SW rendering
> 
> Status in “xserver-xorg-video-nouveau” package in Ubuntu:
>   Confirmed
> Status in “xserver-xorg-video-nouveau” source package in Quantal:
>   Incomplete
> 
> Bug description:
>   Crash doing memcpy in EXA on nouveau, with software rendering
>   activated.
> 
>   #8  <signal handler called>
>   No symbol table info available.
>   #9  __memcpy_sse2 () at ../sysdeps/x86_64/multiarch/../memcpy.S:72
>   No locals.
>   #10 0x00007f570e63684e in memcpy (__len=23, __src=0x0, __dest=0x7f5713877100) at /usr/include/x86_64-linux-gnu/bits/string3.h:52
>   No locals.
>   #11 exaMemcpyBox (pbox=pbox@entry=0x7fffef000de0, src=0x0, src_pitch=64, dst=0x7f5713877100 "", dst_pitch=24, pPixmap=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at ../../exa/exa_migration_classic.c:59
>           i = 16
>           cpp = <optimized out>
>           bytes = 23
>   #12 0x00007f570e636d03 in exaCopyDirty (migrate=migrate@entry=0x7fffef000e40, pValidDst=0x7f5713dc3e40, pValidSrc=0x7f5713dc3e50, transfer=0x7f570f28b7f0 <nouveau_exa_download_from_screen>, fallback_index=fallback_index@entry=1, sync=0x7f570e635780 <exaWaitSync>) at ../../exa/exa_migration_classic.c:240
>           pPixmap = 0x7f5713dc3da0
>           pExaPixmap = 0x7f5713dc3e00
>           damage = <optimized out>
>           CopyReg = {extents = {x1 = 0, y1 = 0, x2 = 23, y2 = 16}, data = 0x0}
>           save_use_gpu_copy = 1
>           save_pitch = 64
>           pBox = 0x7fffef000de0
>           nbox = 1
>           access_prepared = 1
>           need_sync = 0
>   #13 0x00007f570e636f32 in exaCopyDirtyToSys (migrate=migrate@entry=0x7fffef000e40) at ../../exa/exa_migration_classic.c:285
>           pPixmap = <optimized out>
>           pExaScr = 0x7f5713877100
>           pExaPixmap = 0x0
>   #14 0x00007f570e63951a in exaPrepareAccessReg_mixed (pPixmap=0x7f5713dc3da0, index=<optimized out>, pReg=0x0) at ../../exa/exa_migration_mixed.c:254
>           as_dst = 1
>           pixmaps = {{as_dst = 0, as_src = 1, pPix = 0x7f5713dc3da0, pReg = 0x0}}
>           pExaPixmap = 0x7f5713dc3e00
>           has_gpu_copy = <optimized out>
>           success = <optimized out>
> 
>   [Original Report]
>   The crash report started immediately after login.
> 
>   ProblemType: Crash
>   DistroRelease: Ubuntu 12.10
>   Package: xserver-xorg-core 2:1.12.99.902-0ubuntu1
>   ProcVersionSignature: Ubuntu 3.5.0-8.8-generic 3.5.0
>   Uname: Linux 3.5.0-8-generic x86_64
>   .tmp.unity.support.test.0:
> 
>   ApportVersion: 2.4-0ubuntu6
>   Architecture: amd64
>   CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
>   CompositorRunning: None
>   CrashCounter: 1
>   Date: Sun Aug  5 14:46:44 2012
>   DistUpgraded: Fresh install
>   DistroCodename: quantal
>   DistroVariant: ubuntu
>   DkmsStatus:
>    virtualbox, 4.1.18, 3.5.0-6-generic, x86_64: installed
>    virtualbox, 4.1.18, 3.5.0-8-generic, x86_64: installed
>   ExecutablePath: /usr/bin/Xorg
>   ExtraDebuggingInterest: Yes, if not too technical
>   GraphicsCard:
>    NVIDIA Corporation C61 [GeForce 6100 nForce 400] [10de:03d2] (rev a2) (prog-if 00 [VGA controller])
>      Subsystem: NVIDIA Corporation Device [10de:cb84]
>   InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120519)
>   Lsusb:
>    Bus 001 Device 002: ID 18ec:3399 Arkmicro Technologies Inc.
>    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>   ProcCmdline: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background none
>   ProcEnviron:
> 
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-8-generic root=UUID=a80eff25-65c3-4db0-adad-31d8ea95823b ro quiet splash vt.handoff=7
>   Renderer: Software
>   Signal: 6
>   SourcePackage: xorg-server
>   StacktraceTop:
>    ?? () from /lib/x86_64-linux-gnu/libc.so.6
>    ?? () from /usr/lib/xorg/modules/libexa.so
>    ?? () from /usr/lib/xorg/modules/libexa.so
>    ?? () from /usr/lib/xorg/modules/libexa.so
>    ?? () from /usr/lib/xorg/modules/libexa.so
>   Title: Xorg crashed with SIGABRT
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   UserGroups:
> 
>   dmi.bios.date: 09/22/2006
>   dmi.bios.vendor: Phoenix Technologies, LTD
>   dmi.bios.version: 6.00 PG
>   dmi.board.name: NF-MCP61
>   dmi.chassis.type: 3
>   dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd09/22/2006:svn:pn:pvr:rvn:rnNF-MCP61:rvr:cvn:ct3:cvr:
>   version.compiz: compiz 1:0.9.8+bzr3249-0ubuntu2
>   version.ia32-libs: ia32-libs N/A
>   version.libdrm2: libdrm2 2.4.37-0ubuntu2
>   version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-1ubuntu1
>   version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
>   version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-1ubuntu1
>   version.xserver-xorg-core: xserver-xorg-core 2:1.12.99.902-0ubuntu1
>   version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-2~ubuntu1
>   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 2:2.20.2-1ubuntu1
>   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/xserver-xorg-video-nouveau/+bug/1033533/+subscriptions


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