[Lxc-users] lxc-stop crashes the host

[Serge E. Hallyn]

Quoting Ulli Horlacher (framstag at rus.uni-stuttgart.de):
> 
> vms1 is an Ubuntu 10.04 based host system (4 * Xeon 64bit) with:
> 
> root at vms1:/lxc# uname -a
> Linux vms1 2.6.38-11-server #50~lucid1-Ubuntu SMP Tue Sep 13 22:10:53 UTC 2011 x86_64 GNU/Linux
> 
> root at vms1:/lxc# lxc-version 
> lxc version: 0.7.5
> 
> 
> I can start (Ubuntu 10.04) containers without problems:
> 
> root at vms1:/lxc# lxc-start -f fex.cfg -n fex -d -o fex.log
> 
> root at vms1:/lxc# lxc-info -n fex
> state:   RUNNING
> pid:      4073
> 
> 
> But when I try to stop this container with:
> 
> root at vms1:/lxc# lxc-stop -n fex
> 
> the host (vms1) crashes with a kernel traceback.
> 
> After reboot of vms1 no crash traces are found in /var/log/
> 
> I have attached vms1 to a console server, where I can make screenshots:
> 
> http://fex.rus.uni-stuttgart.de/tmp/vms1-crash.png
> 
> It's a pity, but this console server (HP IP console) cannot log ASCII
> based, it is GUI only. I can make only screenshots and cannot scroll back,
> so the beginning of the kernel crash message is missing.
> 
> Any tips for debugging or even problem solving?

Can you use some screencast program to grab the video as the error passes
by on the gui?  Then export a .jpg from the screencast video?