Comment 7 for bug 1098064

This is an upstream report of weston crash, which occures the first time with
package weston 1.0.3 in Ubuntu 13.04 development branch. During time launchpad has counted 4 who are affected by stacktrace identification.

The original report can be found at:

https://bugs.launchpad.net/ubuntu/+source/weston/+bug/1098064

A stactrace will be attached here. Much more files can be found on the downstream report.

Unfortunally I am by myself not able to hit the crash on any version, so a
stacktrace from myself is not available(I only bring this upstream).

Also no one of the affected people is able to give a valid reproducing
procedure.

The header of

https://bugs.launchpad.net/ubuntu/+source/weston/+bug/1098064

will be copied here and the available stacktrace will be attached.

If there is need to test any further please contact the 4 affected people
automatically by simple commenting on the launchpad report.

Thanks

---------------------------------------------(header of launchpad bug):

No idea when it happened. The weston window was behaving normal all the time

ProblemType: Crash
DistroRelease: Ubuntu 13.04
Package: weston 1.0.3-0ubuntu1
ProcVersionSignature: Ubuntu 3.7.0-7.15-generic 3.7.0
Uname: Linux 3.7.0-7-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.8-0ubuntu1
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
Date: Thu Jan 10 13:40:32 2013
Disassembly: => 0x0: Cannot access memory at address 0x0
DistUpgraded: 2012-11-25 13:52:25,604 DEBUG enabling apt cron job
DistroCodename: raring
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 4.1.22, 3.7.0-6-generic, x86_64: installed
 virtualbox, 4.1.22, 3.7.0-7-generic, x86_64: installed
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/weston/weston-desktop-shell
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI Wrestler [Radeon HD 6310] [1002:9802] (prog-if 00 [VGA controller])
   Subsystem: Sony Corporation Device [104d:9082]
InstallationDate: Installed on 2012-11-25 (46 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120627)
MachineType: Sony Corporation VPCYB16KG
MarkForUpload: True
ProcCmdline: /usr/lib/weston/weston-desktop-shell
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.7.0-7-generic root=UUID=c5e8db97-be79-41c7-a2d8-be5fa7b409a8 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x0: Cannot access memory at address 0x0
 PC (0x00000000) not located in a known VMA region (needed executable region)!
SegvReason: executing NULL VMA
Signal: 11
SourcePackage: weston
StacktraceTop:
 ?? ()
 ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
 ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
 ?? () from /usr/lib/x86_64-linux-gnu/libwayland-client.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libwayland-client.so.0
Title: weston-desktop-shell crashed with SIGSEGV in ffi_call_unix64()
UpgradeStatus: Upgraded to raring on 2012-11-25 (45 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
dmi.bios.date: 12/22/2010
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: R0160Z7
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnInsydeCorp.:bvrR0160Z7:bd12/22/2010:svnSonyCorporation:pnVPCYB16KG:pvrC900K9AU:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCYB16KG
dmi.product.version: C900K9AU
dmi.sys.vendor: Sony Corporation
version.compiz: compiz 1:0.9.9~daily12.12.05-0ubuntu2
version.ia32-libs: ia32-libs 20090808ubuntu36
version.libdrm2: libdrm2 2.4.40-1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.1-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.1-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.13.1.901-0ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.0.0-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.17-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.6-0ubuntu1
xserver.bootTime: Tue Jan 8 22:32:57 2013
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.13.0.902-0ubuntu1
xserver.video_driver: radeon