Comment 0 for bug 418499

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Alan Lord (theopensourcerer) wrote :

Fully updated Ubuntu Karmic as of today (25/08/09 at 10:05 BST).

Hardware: Asus 1008HA

3G dongle: Option ICON 225 (Uses kernel module hso.ko)

Plugging in the USB stick and removing it without attempting to make a connection does not cause the failure.

To cause failure, plug in the USB device, attempt to make a connection in NM (it doesn't matter if the connection succeeds or not) then disconnect using the NM interface. OK so far.

Upon removing the dongle, the entire system locks up.

FYI, these symptoms used to happen with the early versions of the hso module prior to being included in the mainstream kernel tree in 2.6.27 IIRC. I tested this with all available Karmic kernels on my system: 2.6.31.3-generic, 2.6.31.4-generic, 2.6.31.5-generic, 2.6.31.6-generic, 2.6.31.7-generic, and the problem is the same. However, I am *pretty sure* this did not used to happen a couple of weeks ago. Not much help I know.

It is repeatable *every-time*. No mouse movement is possible, no keyboard commands are accepted apart from doing Alt+SysRq REISUB will cause a reboot.

I had an ssh connection into the device and was tailing /var/log/messages. No output upon removal and the ssh connection is also broken.