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Date:      Wed, 6 Jun 2001 19:49:20 -0400 (EDT)
From:      Andrew Gallatin <gallatin@cs.duke.edu>
To:        John Baldwin <jhb@freebsd.org>
Cc:        freebsd-alpha@freebsd.org
Subject:   Re: Possible VM patch..
Message-ID:  <15134.49536.206316.481220@grasshopper.cs.duke.edu>
In-Reply-To: <XFMail.010606120816.jhb@FreeBSD.org>
References:  <XFMail.010606120816.jhb@FreeBSD.org>

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John Baldwin writes:
 > For those people still having some VM problems, please try out the patch at
 > http://www.FreeBSD.org/~jhb/patches/vm.patch and let me know if it helps. 
 > Basically, it sticks the swapper, vmdaemon, and pagedaemon completely back
 > under Giant for now.  Some of the proc locking currently out from under Giant
 > in those isn't really safe yet and won't be until the proc locking is finished
 > (among other things).
 > 

Still no joy here.  It dropped down to the SRM with the RA at XentMM
(../../alpha/alpha/exception.s:88) about 1/2 way through a buildworld
(no -j's).  I had to steal the console by killing the kermit I had
running in the office, so I have no idea what message were emitted.

I suspect it was another ksp not valid halt.  Which means that it is
still faulting in the fault path and recursing until it exhausts the
stack space.

This is a UP kernel.  As luck would have it, I have an assert in my
trap.c to catch this sort of thing, but it uses kernnest & is dependent
on SMP.  D'oh!

Drew




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