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https://bugs.launchpad.net/bugs/1234786
Title:
Xorg crashed with SIGSEGV in __mpn_divrem()
Status in “xorg-server” package in Ubuntu:
New
Bug description:
I did a 'sudo service networking restart', saw Unity/Compiz crash and
then X fall over.
ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: xserver-xorg-core 2:1.14.2.901-2ubuntu7
ProcVersionSignature: Ubuntu 3.11.0-11.17-generic 3.11.3
Uname: Linux 3.11.0-11-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.12.5-0ubuntu1
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Thu Oct 3 11:33:32 2013
DistUpgraded: 2013-05-29 12:02:50,961 DEBUG enabling apt cron job
DistroCodename: saucy
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166]
(rev 09) (prog-if 00 [VGA controller])
Subsystem: Dell Device [1028:058b]
InstallationDate: Installed on 2013-04-02 (183 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130402)
MachineType: Dell Inc. Dell System XPS L322X
MarkForUpload: True
ProcCmdline: /usr/bin/X -core :0 -auth /var/run/lightdm/root/:0 -nolisten tcp
vt7 -novtswitch
ProcEnviron:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-11-generic
root=UUID=a9dd85e0-61ec-4b25-a944-73962e721907 ro quiet splash vt.handoff=7
SegvAnalysis:
Segfault happened at: 0x7f3d8e6549f5 <__mpn_divrem+21>: mov
%rsi,0x28(%rsp)
PC (0x7f3d8e6549f5) ok
source "%rsi" ok
destination "0x28(%rsp)" (0x7fff1ad12ff8) not located in a known VMA region
(needed writable region)!
Stack memory exhausted (SP below stack segment)
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: xorg-server
StacktraceTop:
__mpn_divrem (qp=0x7fff1ad13110, qextra_limbs=qextra_limbs@entry=0,
np=0x7fff1ad13150, nsize=2, dp=0x7fff1ad130d0, dsize=1) at divrem.c:56
hack_digit () at printf_fp.c:250
___printf_fp (fp=fp@entry=0x7fff1ad13990, info=0x7fff1ad134e0,
args=args@entry=0x7fff1ad13480) at printf_fp.c:943
_IO_vfprintf_internal (s=<optimized out>, format=<optimized out>,
ap=<optimized out>) at vfprintf.c:1654
buffered_vfprintf (s=s@entry=0x7f3d91f95500,
format=format@entry=0x7f3d90adafb0 "[%10.3f] ", args=args@entry=0x7fff1ad16118)
at vfprintf.c:2341
Title: Xorg crashed with SIGSEGV in __mpn_divrem()
UpgradeStatus: Upgraded to saucy on 2013-05-29 (126 days ago)
UserGroups:
dmi.bios.date: 08/17/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: X29
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnDellInc.:bvrX29:bd08/17/2012:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr0.1:
dmi.product.name: Dell System XPS L322X
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.10+13.10.20130927.1-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.46-1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2-1ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2-1ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.14.2.901-2ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu9
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.14-4ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.9-2ubuntu1
xserver.bootTime: Thu Oct 3 11:35:42 2013
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 4920
vendor CMN
xserver.version: 2:1.14.2.901-2ubuntu7
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