Comment 17 for bug 757242

This still happens in kubuntu 11.10, which I just dist upgraded today. (and kubuntu 10.something that I had before today)

It does not happen when I plug my USB 2.0 mouse in the USB 3.0 port. It does not happen when I plug in a small port-powered USB 3.0 hard disk into the USB 3.0 port (which I then tested at 70 MB/s). But it happens when I add a big external "Iomega Prestige Desktop Hard Drive" in. I get lots of general protection faults on various processes (first is usually "ata_id" process). And when switching tty consoles, it starts rapidly spewing messages like "[ 376.000000 ] sr 7:0:0:1: sense urb submission failure". And after enough processes crash, it is not possible to switch consoles, because the system panicked.

$ uname -a
Linux peter 3.0.0-17-generic #30-Ubuntu SMP Thu Mar 8 20:45:39 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=11.10
DISTRIB_CODENAME=oneiric
DISTRIB_DESCRIPTION="Ubuntu 11.10"

I plan to test it on a SuSE or Debian live CD to compare.