[Bug 829980] Re: upstart-udev-bridge eats 100% cpu calling dbus_message_iter_append_basic()
Jim4Prez
829980 at bugs.launchpad.net
Sat Mar 31 02:06:15 UTC 2012
Just posting information on the fix. This bug affected me as well.
However it was not with the POWER_SUPPLY_MODEL_NAME. Every time I would
unplug and plugin my laptop I would get 100% CPU usage from upstart-
udev-bridge.
The garbage characters are in the value of the model name for this Sanyo
battery.
0003760 012 120 117 127 105 122 137 123 125 120 120 114 131 137 115 117
\n P O W E R _ S U P P L Y _ M O
0004000 104 105 114 137 116 101 115 105 075 060 021 060 052 171 206 012
D E L _ N A M E = 0 021 0 * y 206 \n
I have applied the fix and restarted upstart-udev-bridge and the issue
has not appeard again, even after rapidly unpluging and pluging in the
power supply. Attached is just the output for the add event for the
power supply.
Thanks for the fix.
** Attachment added: "udev_upstart.txt"
https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/829980/+attachment/2972362/+files/udev_upstart.txt
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https://bugs.launchpad.net/bugs/829980
Title:
upstart-udev-bridge eats 100% cpu calling
dbus_message_iter_append_basic()
Status in Upstart:
Fix Released
Status in “linux” package in Ubuntu:
Confirmed
Status in “upstart” package in Ubuntu:
Fix Released
Bug description:
the segv was created by me sending a kill -11. but the 100% cpu is
unbarable
ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: upstart 1.3-0ubuntu6
ProcVersionSignature: Ubuntu 3.0.0-8.11-generic 3.0.1
Uname: Linux 3.0.0-8-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Sat Aug 20 11:48:34 2011
ExecutablePath: /sbin/upstart-udev-bridge
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64+mac (20110803.1)
ProcCmdline: upstart-udev-bridge --daemon
ProcEnviron: PATH=(custom, no user)
Signal: 11
SourcePackage: upstart
StacktraceTop:
?? () from /lib/x86_64-linux-gnu/libc.so.6
?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
dbus_message_iter_append_basic () from /lib/x86_64-linux-gnu/libdbus-1.so.3
?? ()
Title: upstart-udev-bridge crashed with SIGSEGV in dbus_message_iter_append_basic()
UpgradeStatus: No upgrade log present (probably fresh install)
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