6.0-BETA5 random freeze with rtc

[Rainer Alves]

Thomas Quinot wrote:

>On a new Dell Precision 380 box running 6.05-BETA5, I've seen random
>freezes (apparently not related to specific activities running on the
>machine, which has web and mail servers and also runs an X server) a few
>days apart.
>
>On the last two instances, the last message recorded in the logs was the
>same:
>
>Nov 21 02:11:22 melamine kernel: rtc: 1000 > kern.hz: Timing will be inaccurate, please increase hz.
>
>and this messages does not occur at any other time, so I suspect it's
>related to the freezes I saw. I might have been running mplayer shortly
>before the freeze. Could this be related to PR 71536? (i.e. could the
>rtc bug cause a freeze, and not only an annoying console message?)
>
>Thomas.
>  
>

I've had the same problem with mplayer+RTC on (5|6).x, the solution was 
to rebuild the kernel with "options HZ=1160", as well as rebuild the 
emulators/rtc port after each and every kernel update (reloading rtc.ko 
before launching mplayer). Messages regarding "inaccurate timing" and 
weird system freezes disappeared ever since.
7-current doesn't seem to be affected by any of those.

--
Rainer Alves
BrasilTelecom