cpu time oddity (was Re: Linux 2.6.27-rc5)

Alistair John Strachan
2008-08-29T15:42:55Z

On Friday 29 August 2008 00:26:45 Linus Torvalds wrote:
> Another week (my weeks do seem to be eight days, don't they? Very odd),
> another -rc.

(Don't know who's responsible for this one, so I've just added Ragael to CC)

I only noticed this recently but it's probably been happening for a while
(doesn't seem to happen on 2.6.26):

ps aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 2 83033595 0.0 0 0 ? S< 10:30 21114574:23 [kthreadd]
root 1740 83078470 0.0 0 0 ? S< 10:31 21114574:23 [md0_raid1]

Seems to happen only to kernel threads and at random. Last time I booted
it was two XFS threads.

Before I start another bisection, does anybody have any ideas?

--
Cheers,
Alistair.