I had a problem a while ago and most of the folks here told me it was probably my wireless drivers.  Since I've switched to the ath5k FOSS drivers as opposed to madwifi I've had no problems so I'm inclined to think that was the problem.  If you're running wireless, try leaving it up overnight with the wireless drivers unloaded.

On Sat, Jan 15, 2011 at 9:13 PM, Andy Stewart <andystewart@comcast.net> wrote:

HI gang,

I've read an awful lot of posts recently describing freezing or hanging
systems in very recent versions of several Linux distributions.

Unfortunately, I got one of them - Kubuntu 10.10 (I *knew* I shouldn't
have upgraded from the very stable SuSE 10.1, except that it was quite
old).

My system arbitrarily hangs/freezes at unpredictable intervals.
Sometimes I can make it happen 2 minutes after a reboot, and other times
it takes a few days, but invariably, it does occur.

I can usually induce it by doing something semi-stressful to the video,
like watching something via mplayer, but it doesn't always occur.

The postings I've seen appear to describe a wide variety of hardware and
software configurations, and nobody can seem to find any error data in
any log file.

What I can't find is the solution, and I've googled extensively.  Has
anybody found anything online that talks about some very recently
discovered bug and its fix that would cure the problem?

Thanks!

Andy

--
Andy Stewart (KB1OIQ)
Founder:   Worcester Linux Users' Group
Founder:   Chelmsford Linux Meetup Group
President: PART of Westford, MA (WB1GOF)
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Eric Martin