Xorg crashed with SIGSEGV in drm_intel_bo_map()

[kva]

Well, black screen problem again

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: xserver-xorg-core 2:1.9.0.902-1ubuntu4
ProcVersionSignature: Ubuntu 2.6.37-12.26-generic 2.6.37
Uname: Linux 2.6.37-12-generic i686
Architecture: i386
DRM.card0.DP.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1366x768
 edid-base64: AP///////wAw5MIBAAAAAAASAQOAIhN4CuiVm1ZIliYaUFQAAAABAQEBAQEBAQEBAQEBAQEBPhxWoFAAFjAwIDUAWMIQAAAZAAAAAAAAAAAAAAAAAAAAAAAAAAAA/gBMRyBEaXNwbGF5CiAgAAAA/ABMUDE1NldIMS1UTEEzAN4=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Mon Jan 24 19:00:08 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
GdmLog1: Not present
GdmLog2: Not present
GraphicsCard:
 Subsystem: Acer Incorporated [ALI] Device [1025:0459]
   Subsystem: Acer Incorporated [ALI] Device [1025:0459]
LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110123)
MachineType: eMachines eMachines E527
ProcCmdline: X -br -ac -noreset -nolisten tcp -nr vt7 :0
ProcEnviron:
 LANGUAGE=
 PATH=(custom, no user)
 LANG=en_US.UTF-8
ProcKernelCmdLine: file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
ProcKernelCmdLine_: file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
SegvAnalysis:
 Segfault happened at: 0x813311e: movb $0x23,(%eax)
 PC (0x0813311e) ok
 source "$0x23" ok
 destination "(%eax)" (0x00000000) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: xorg-server
StacktraceTop:
 drm_intel_bo_map () from /lib/libdrm_intel.so.1
 ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
 ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
 ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
 ?? ()
Title: Xorg crashed with SIGSEGV in drm_intel_bo_map()
UnitySupportTest:

UserGroups:

dmi.bios.date: 04/16/2010
dmi.bios.vendor: eMachines
dmi.bios.version: V1.01
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: eMachines E527
dmi.board.vendor: eMachines
dmi.board.version: V1.01
dmi.chassis.type: 10
dmi.chassis.vendor: eMachines
dmi.chassis.version: V1.01
dmi.modalias: dmi:bvneMachines:bvrV1.01:bd04/16/2010:svneMachines:pneMachinesE527:pvrV1.01:rvneMachines:rneMachinesE527:rvrV1.01:cvneMachines:ct10:cvrV1.01:
dmi.product.name: eMachines E527
dmi.product.version: V1.01
dmi.sys.vendor: eMachines
version.libdrm2: libdrm2 2.4.22-2ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 7.9+repack-1ubuntu6
version.xserver-xorg: xserver-xorg 1:7.5+6ubuntu8
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.13.2-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.13.901-2ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20100805+b96170a-0ubuntu1

[Apport retracing service (apport)]

StacktraceTop:
 XISendDeviceHierarchyEvent (flags=0xbfe0748c)
 DisableDevice (dev=0xaa09c80, sendevent=1 '\001')
 ?? ()

[Bryce Harrington (bryce)]

Thanks, this is indeed a dupe of 705078 but gives some additional hw data. I'll dupe this, please test the ppa I posted for that bug report.