Comment 116 for bug 300693

Near as I was able to figure out (prior to 10.04) the issue appeared to center around wireless usage. The more wireless usage a user had the more likely they were to trigger the bug/issue.

However, that being said, since my upgrade to 10.04 my hardlocks have been replaced with random reboots. This is somewhat good as there is a kernel crashdump when this happens. However, at this time I'm unable to retrace the issue myself as apport-retrace bails with an index out of range error and reporting the crash via the notification applet fails with an HTTP 500 error.