On Thu, Feb 17, 2011 at 05:06:15PM -0800, Greg KH wrote: > On Thu, Feb 17, 2011 at 04:57:00PM -0800, Sarah Sharp wrote: > > Greetings, > > > > This is a note to let Dmitry, Paul, and Luben know that while testing > > their patches against Greg's usb-linus branch, my kernel crashed when I > > plugged in a USB 3.0 hard drive. This was the first device to be > > plugged into the host after driver load, so it should be fairly easy to > > reproduce. > > > > At this point, I'm not sure whether one of the patches are to blame, or > > if the problem lies somewhere in Greg's tree. I'm compiling a kernel to > > do diagnosis now. Until I find the underlying cause, I'm not going to > > be able to send any of your patches off to Greg. Thanks for your > > patience. > > No problem, good luck debugging. Hi Greg, I haven't been able to reproduce my crash in a couple days of testing, so I'm inclined to just send these bug fixes off. What happened with the original crash was a flaky USB 3.0 drive disconnected sometime in the night, while I had a bash shell open to a directory in the mount point. When I noticed the drive had disconnected, and re-plugged it in and tried to play a movie from the bash shell, the graphical session froze. I'm not sure if it was a kernel crash, because the keyboard lights weren't blinking, and the system responded to syscontrol keys to sync, unmount, and reboot. I think I couldn't ssh into the box, although I can't clearly remember that bit. The system log file was corrupted just after it showed the device connecting, and I wasn't running netconsole at the time. I haven't seen this issue show up again with the flaky USB3 drive. I'm inclined to think the original hang wasn't caused by the bug fix patches, unless maybe Paul's ring patches caused a failure when the drive re-connected? But ring math issues usually have the effect of just causing the xHCI host controller to stop responding to transfers, so my gut feeling is that Paul's patches aren't the cause either. Should I just send the patches off? Sarah Sharp -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
