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Date:      Thu, 18 Jan 2001 05:39:30 -0800
From:      Peter Wemm <peter@netplex.com.au>
To:        Soren Schmidt <sos@freebsd.dk>
Cc:        jhb@FreeBSD.ORG (John Baldwin), bright@wintelcom.net (Alfred Perlstein), current@FreeBSD.ORG, arch@FreeBSD.ORG, rjesup@wgate.com
Subject:   Re: HEADS-UP: await/asleep removal imminent 
Message-ID:  <200101181339.f0IDdUK14717@mobile.wemm.org>
In-Reply-To: <200101181309.OAA84777@freebsd.dk> 

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Soren Schmidt wrote:
> It seems Peter Wemm wrote:
> > 
> > Hmm.  with the mp_machdep.c fix committed, that leaves the only other
> > significant difference being the re-enable of HLT when a cpu goes idle
> > in i386/i386/machdep.c.
> 
> That still lockups, tried a freshly checked out sys...
> 
> > The refcount.[ch] stuff is not relevant to this problem.
> > 
> > The kern/subr_prf.c change doesn't *appear* to be a likely candidate,
> > unless you are printing lots of console messages during the buildworld..
> > 
> > The kern/vfs_aio.c are not relevant as VFS_AIO is not in GENERIC.
> > 
> > The rest are comments, mtx_assert()'s or DDB activation related.
> > 
> > Soren, can you retest a buildworld with the currently committed kernel
> > with no other changes?  Let us see if the forward_signal() stuff is the
> > culprit, and if not, try adding just the i386/i386/machdep.c patch to HLT
> > the idle CPU.  (if *that* makes a difference then we have got trouble!)
> 
> I'll try adding the forward_signal stuff see if that helps...

But John committed that! it should be in the fresh checkout you tried
above....  Of course, that is assuming you cvsup'ed very recently..

> -Søren
> 

Cheers,
-Peter
--
Peter Wemm - peter@FreeBSD.org; peter@yahoo-inc.com; peter@netplex.com.au
"All of this is for nothing if we don't go to the stars" - JMS/B5



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