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** Changed in: xorg-server (Ubuntu)
Status: Triaged => Incomplete
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https://bugs.launchpad.net/bugs/533622
Title:
"sudo strace -p $(pgrep X)" hangs system after a few seconds
Status in xorg-server package in Ubuntu:
Incomplete
Bug description:
I've tried "sudo strace -p $(pgrep X)" in a KDE konsole to see what
Xorg was doing that may cause high cpu load.
After a few seconds and lot of output, the system hung and I could not switch
to another VT, but music kept playing in the background.
Doing the REISUB sequence, the system restartet after Alt-SysRq-R or -E
already.
This was reproducible (I've tried it twice), the restart however appeared
only once: it required a hard reset the other time.
This is probably related to the generated output, since it did not
happen on VT1 after reboot, where I've used "-o outputfile" though.
Using "sudo strace -p $(pgrep X) -o /tmp/1" and "tail -f /tmp/1" also
does not cause the hangup.
ProblemType: Bug
Architecture: i386
Date: Sun Mar 7 04:06:46 2010
DistroRelease: Ubuntu 10.04
Lsusb:
Bus 002 Device 004: ID 045e:00db Microsoft Corp. Natural Ergonomic Keyboard
4000 V1.0
Bus 002 Device 002: ID 1a7c:0068
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
NonfreeKernelModules: nvidia
Package: xserver-xorg-core 2:1.7.5-1ubuntu2
ProcCmdLine: root=UUID=73d091ef-8ee9-4ad2-9243-1ece878c1024
resume=/dev/fastrcvg/swaplv ro acpi_use_timer_override usbcore.autosuspend=1
splash
ProcEnviron:
LANGUAGE=
PATH=(custom, user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-15.22-generic
SourcePackage: xorg-server
Uname: Linux 2.6.32-15-generic i686
dmi.bios.date: 03/08/2007
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F9c
dmi.board.name: NF-CK804
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.modalias:
dmi:bvnAwardSoftwareInternational,Inc.:bvrF9c:bd03/08/2007:svn:pn:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnNF-CK804:rvrx.x:cvn:ct3:cvr:
system:
distro: Ubuntu
codename: lucidarchitecture: i686kernel:
2.6.32-15-generic
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