Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.30-2

[Mark_H_Johnson]

>Just did a build with -V0.7.30-2 and was about to start testing when
>the system locked up (no keyboard response, display frozen, etc.). ...

Same symptom with a slightly different set of steps leading to the
problem.
 - boot / telinit 5 OK
 - su'd to get privileges
 - cat /proc/sys/kernel/preempt_wakeup_latency (showed 0)
 - echo 1 > /proc/sys/kernel/preempt_wakeup_latency
 - set RT priorities as before
 - started scripts to record data
 - system-config-soundcard (newline shown)
At this point, the system is locked up again with no response to any
inputs.

One thing I did notice from the previous test, I had two output files
from preempt_trace showing a couple minor (just over 50 usec each)
wakeup traces.

I have a few ideas to simplify the set up to see if I can get some
useful data out of the system.

--Mark H Johnson
  <mailto:Mark_H_Johnson@xxxxxxxxxxxx>

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/