Bug#647741: linux-image-3.0.0-2-amd64: UI sometimes freezes for several seconds, with a disk access

[Jonathan Nieder <jrnieder@gmail.com>]

Hi,

Vincent Lefevre wrote:

> Several times a day, the UI freezes for a few seconds. This can happen
> when I'm working in an xterm or with Iceweasel. During this time, the
> disk LED is on. Note that the disk is encrypted.
>
> I also had this problem with the version 3.0.0-5 of this kernel package.
> I reverted to 2.6.38-2-amd64 between Oct 30 and Nov 4, and didn't notice
> this problem with it (the disk accesses seemed to be sometimes slower,
> but I'm not sure; however the UI never froze).

Thanks.  Are you low on swap?  Does dmesg say anything interest when
this happens?  Does alt-sysrq + t (after echo-ing 1 to
/proc/sys/kernel/sysrq to avoid the paranoid check) say anything
interesting?  If nothing along those lines help, can you bisect (e.g.,
starting by trying 2.6.39 for a while)?

Hope that helps,
Jonathan