** Package changed: xorg-server (Ubuntu) => xserver-xorg-input-synaptics
(Ubuntu)
** Changed in: xserver-xorg-input-synaptics (Ubuntu)
Status: Confirmed => In Progress
** Description changed:
+ If the device is turned off, usually by syndaemon to disable the touchpad
while the typing, the touch state will not be updated with the latest hardware
state changes. If a touch begins while the device is off and ends while the
device is on, then the touch count will be decremented without any previous
increment. A similar effect will occur if the device is on when the touch
begins, but off when the touch ends.
+
+ If the touch count goes negative, the index into the touch slot mask array
will be out of bounds. This can corrupt memory and cause random crashes.
+
+ Original bug report
+ ===================
+
No idea what happened.
ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: xserver-xorg-core 2:1.11.4-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-15.24-generic 3.2.5
Uname: Linux 3.2.0-15-generic x86_64
.tmp.unity.support.test.0:
-
+
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CheckboxSubmission: 2f383a1679e8525d7196eb2518a1921f
CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
Date: Mon Feb 13 11:29:44 2012
DistUpgraded: Log time: 2011-12-02 10:42:12.615728
DistroCodename: precise
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
ExecutableTimestamp: 1328935414
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
- Intel Corporation 2nd Generation Core Processor Family Integrated Graphics
Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
- Subsystem: Lenovo Device [17aa:21da]
+ Intel Corporation 2nd Generation Core Processor Family Integrated Graphics
Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
+ Subsystem: Lenovo Device [17aa:21da]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110817)
MachineType: LENOVO 429149G
ProcCmdline: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7
-novtswitch -background none
ProcCwd: /etc/X11
ProcEnviron:
-
+
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-15-generic
root=UUID=51ab960b-a2da-4841-98ce-c017f0582971 ro quiet splash vt.handoff=7
SegvAnalysis:
- Segfault happened at: 0x7f2934a65b88 <XIChangeDeviceProperty+456>: mov
0x10(%r12),%rax
- PC (0x7f2934a65b88) ok
- source "0x10(%r12)" (0x7f2900000010) not located in a known VMA region
(needed readable region)!
- destination "%rax" ok
+ Segfault happened at: 0x7f2934a65b88 <XIChangeDeviceProperty+456>: mov
0x10(%r12),%rax
+ PC (0x7f2934a65b88) ok
+ source "0x10(%r12)" (0x7f2900000010) not located in a known VMA region
(needed readable region)!
+ destination "%rax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: xorg-server
StacktraceTop:
- XIGetDeviceProperty ()
- ?? ()
- ?? ()
- ?? ()
- ?? ()
+ XIGetDeviceProperty ()
+ ?? ()
+ ?? ()
+ ?? ()
+ ?? ()
Title: Xorg crashed with SIGSEGV in XIGetDeviceProperty()
UpgradeStatus: Upgraded to precise on 2012-01-12 (31 days ago)
UserGroups:
-
+
dmi.bios.date: 05/18/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 8DET46WW (1.16 )
dmi.board.asset.tag: Not Available
dmi.board.name: 429149G
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr8DET46WW(1.16):bd05/18/2011:svnLENOVO:pn429149G:pvrThinkPadX220:rvnLENOVO:rn429149G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 429149G
dmi.product.version: ThinkPad X220
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu8
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0~rc2-0ubuntu5
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0~rc2-0ubuntu5
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev
1:2.6.99.901-1ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:0.0.16+git20111201+b5534a1-1build2
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https://bugs.launchpad.net/bugs/931344
Title:
Xorg crashed with SIGSEGV in XIGetDeviceProperty()
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