Comment 112 for bug 300693

I have a IBM T41 and can add some info regarding this issue:

The lock-up started for me when I got a new network disk-station.
On the old I have used NFS file system, but my new do not support NFS so I chose CIFS...

Now..:
If I mount that CIFS though Fstab or just browse the disk station though network places.
My system will at some point after freez and the caps lock indicator is flashing...!!!
This happens also if I unmount the CIFS mount again...

But if I boot and do not fstab or browse to my network share at all. The system will work for days..

I have always used wireless connection on the last 3 Ubuntu distibutions.
And have newer seen this issue before Ubuntu 10.4 and when using CIFS....

I hope some find this helpfully during trouble shouting and maybe some of the writers above have used a CIFS mount though network as well....