rl(4) is not ready for mpsafenet net enough? (silent reboots)
Robert Watson
rwatson at FreeBSD.org
Fri Jul 22 00:46:43 GMT 2005
On Fri, 22 Jul 2005, Andrey Chernov wrote:
> On Fri, Jul 22, 2005 at 01:17:52AM +0100, Robert Watson wrote:
>> coverage, it's not necessarily a locking problem. Out of curiousity,
>> if you take "options PREEMPTION" out, but leave debug.mpsafenet=1, do
>> things change?
>
> I don't have "options PREEMPTION". Is it good to have?
It's in GENERIC, so I assumed you were running with it unless you
otherwise documented it as part of your bug report.
PREEMPTION is good to have, as it dramatically lowers the latency in
processing interrupts when running kernel-intensive workloads.
Robert N M Watson
More information about the freebsd-current
mailing list