Bug#675621: system freeze after safely unmounting usb drive

[Jonathan Nieder <jrnieder@gmail.com>]

Seb wrote:

> If I umount the disc from console, nothing wrong happen, only if I safely
> remove from right clic, the system freeze, no need to unplug the usb drive
> (as I thought), it happen alone, I manage to open a consol (ctrl-alt-f1)
> before it disable the keyboard, nothing show up.

Thanks, and sorry for the slow reply.

If I understand correctly, the sequence of events are these:

 0. 2.6.32-45 is booted
 1. insertion of USB stick
 2. system mounts USB stick
 3. right-click on it and choose "safely remove drive"
 4. display turns black, though mouse pointer is still showing,
    kernel panic (blinking keyboard LEDs)

If you can get a log of the boot and kernel panic using a serial
console[1] or netconsole[2], that would be perfect.

Hope that helps,
Jonathan

[1] http://www.kernel.org/doc/Documentation/serial-console.txt
[2] http://www.kernel.org/doc/Documentation/networking/netconsole.txt