Comment 12 for bug 916890

Just thought of a bunch more that might be useful:
 - /var/log/syslog
 - /var/log/kern.log

And if you don't mind a reboot and know of to do that:
 - reboot with "--log" appended to the kernel boot command line
 - make a tarball out of /var/log/upstart/* and attach it to the bug

Please note that these upstart logging instructions may cause a kernel panic at boot time because of an upstart bug (that's why it's not the current default). If it does, just reboot without the extra "--log". We expect the next upstart upload to fix that bug and then turn logging on by default (which should make debugging this kind of bug much much easier).

I had planned to do a review of ifupdown bugs tomorrow morning and try to fix or reproduce as many as possible so I probably won't spend much more time on this bug today but hopefully with these few files I should have enough to figure out what happened.

Thanks