Re: trap 12 with preempt (and ule)

From: Brian Fundakowski Feldman <green_at_freebsd.org>
Date: Tue, 19 Oct 2004 13:24:26 -0400
On Tue, Oct 19, 2004 at 10:03:57AM -0700, Randy Bush wrote:
> >>> Yeah, there's no one looking at fixing all of the ULE bugs for now --
> >>> so make sure to not turn on PREEMPTION.
> >> i thought the preeempt fix was in the must-do for 5.3.  so when it
> >> was not in this week's list, i figured it was fixed and would work
> >> in current.  silly me.  must have mis-read or mis-understood.  ah
> >> well.
> > Only for SCHED_4BSD.  I have no clue at all why config(8) doesn't
> > print out a warning that SCHED_ULE is now unsupported.
> 
> so, the word from the wise is SCHED_4BSD not ULE.  and is PREEMPT
> solid with 4bsd?

It seems pretty solid here on 2xCPU.  It is supposed to be mostly solid
now, yes.  Turning it off would probably result in little visible
difference unless it's a desktop, or has very high load, or similar.

-- 
Brian Fundakowski Feldman                           \'[ FreeBSD ]''''''''''\
  <> green_at_FreeBSD.org                               \  The Power to Serve! \
 Opinions expressed are my own.                       \,,,,,,,,,,,,,,,,,,,,,,\
Received on Tue Oct 19 2004 - 15:24:28 UTC

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