Comment 4 for bug 183568
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| Martin Fuzzey (mfuzzey) wrote INVESTIGATION Re: Gutsy network-manager causes OS to freeze on system restart or power down | #4 |
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73416ba
(Get the code!)
Some more details on my setup and investigations.
The problem is 100% reproducable for me on a Dell Latitude D520.
I have narrowed it down as follows:
Boot machine then switch to text console before logging in
Login in text mode as root
/etc/init.d/gdm stop
/etc/dbus-
shutdown most other services (ps -ef output showing processes remaining in attached file)
strace -p <PID OF NM> -f 2> /var/log/
do a ALT-SysRq t to dump kernel threads before hang to syslog
kill -15 <PID OF NM>
system now hangs after a couple of seconds:
No more console echo
Cannot switch virtual consoles
Cannot connect or use existing SSH sessions
Cannot ping machine
do another ALT-SysRq t to dump kernel threads after hang to syslog
ALT-SysRq s (sync disks)
ALT-SysRq b (reboot)
Attached is an archive with the logfiles from all this.