3 Jun
2004
3 Jun
'04
5:42 a.m.
Hi,
What specific benefits have folks seen by turning on
the kernel
preemption patch in a 2.4.19 kernel?
We found that a nasty system crash was fixed by turning off preemption.
The crash would happen fairly reliably by switching between virtual
terminals a number of times. It locked up the system hard. So hard that
we can't really find the problem in the kernel; we just found a
work-around basically by trial and error.
Both preempt and ll are known to cause deadlocks on 2.4. If you want a rock
solid system i recommend to go either with vanilla 2.4 or even better 2.6.
There is an interesting thread about scheduling latency going on on
fedora-devel:
http://www.redhat.com/archives/fedora-devel-list/2004-June/msg00031.html
Regards,
Florian
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