Re: [2.6.30][regression] ACPI continuously logging errors and exceptions while reading DVD

Tvrtko A. Ursulin
2009-06-14T09:12:37Z

On Saturday 13 June 2009 12:44:45 Tvrtko A. Ursulin wrote:
> Hi,
>
> Just booted up 2.6.30 for the first time on this machine and found this
> problem. Hope the attachment goes through because everything is in there.
> Log is shortened since errors are always the same and repeating constantly
> while DVD is in use.

Hm, I am not longer certain this was related to DVD access. At the time I was
looking it may have been a wild coincidence, but after that I saw it at other
times as well.

What also may be interesting, and what I have only now noticed, is that with a
distro kernel (2.6.27.23-0.1-default, openSUSE 11.1), kacpid uses a lot of
CPU time at also seemingly random intervals. So far in ~17 hours of uptime it
accumulated 70 minutes of CPU time. When it is active it uses from 5-20% of
it and load average shoots dramatically up:

USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 9 6.9 0.0 0 0 ? S< Jun13 70:24 [kacpid]

10:07am up 16:49, 2 users, load average: 2.56, 1.34, 0.80

Tvrtko