From owner-freebsd-alpha  Mon Apr 23  6:29:25 2001
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From: Andrew Gallatin <gallatin@cs.duke.edu>
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Date: Mon, 23 Apr 2001 09:28:49 -0400 (EDT)
To: Peter Wemm <peter@wemm.org>
Cc: John Baldwin <jhb@FreeBSD.ORG>, alpha@FreeBSD.ORG
Subject: Re: SMP is stable now. Whee! :) 
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Peter Wemm writes:
 > I just fired it up on a UP2000+ w/ dual 833MHz cpus (4MB DDR L2 cache each)
 > and it was rather uneventful.
 > 
 > That is.. it was until I typed 'make -j4 world':
 > lock order reversal
 >  1st clk last acquired @ ../../alpha/alpha/clock.c:569
 >  2nd 0xfffffc00006ce728 smp rendezvous @ ../../alpha/alpha/mp_machdep.c:605
 >  3rd 0xfffffc00006d9870 clk @ ../../alpha/alpha/clock.c:390
 > [hang]
 > 
 > This is with alpha.smp.patch, plus the stuff recent commits.  I had to change
 > some #idef's into #ifdefs in alpha/trap.c though.

Huh? idef?  Where?

Can you build with WITNESS_DDB and KTR, with the KTR_MASK set to
something like -1 and dump the ktr buffer when this happens?

Drew





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