Date: Sat, 21 Aug 2004 22:30:03 -0400 (EDT) From: Robert Watson <rwatson@FreeBSD.org> To: Brian Fundakowski Feldman <green@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/vm vm_fault.c Message-ID: <Pine.NEB.3.96L.1040821222342.95496C-100000@fledge.watson.org> In-Reply-To: <20040822015800.GE784@green.homeunix.org>
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On Sat, 21 Aug 2004, Brian Fundakowski Feldman wrote: > > > #1. Lock order reversal. Giant is acquired after the map read lock. > > > > No, that is the order it has been in for months. The other functions > > that acquire a map lock and Giant do the same. > > Giant can never be acquired after another lock has been acquired :-( Actually, that's not quite accurate. Take a look at the relationship between lockmgr/sx locks and Giant, for example. Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Principal Research Scientist, McAfee Research
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