Date: Sat, 18 Dec 2010 08:08:00 +0100 From: Joel Dahl <joel@FreeBSD.org> To: Alan Cox <alc@FreeBSD.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r216333 - head/sys/i386/i386 Message-ID: <20101218070800.GA59878@pluto.vnode.local> In-Reply-To: <201012092016.oB9KG05P049565@svn.freebsd.org> References: <201012092016.oB9KG05P049565@svn.freebsd.org>
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On 09-12-2010 20:16, Alan Cox wrote: > Author: alc > Date: Thu Dec 9 20:16:00 2010 > New Revision: 216333 > URL: http://svn.freebsd.org/changeset/base/216333 > > Log: > When r207410 eliminated the acquisition and release of the page queues > lock from pmap_extract_and_hold(), it didn't take into account that > pmap_pte_quick() sometimes requires the page queues lock to be held. > This change reimplements pmap_extract_and_hold() such that it no > longer uses pmap_pte_quick(), and thus never requires the page queues > lock. > > For consistency, adopt the same idiom as used by the new > implementation of pmap_extract_and_hold() in pmap_extract() and > pmap_mincore(). It also happens to make these functions shorter. Hi Alan, This commit makes my laptop hang everytime I quit X. I just get a black screen and the machine won't respond to any keys. Everything works if I go back to r216330. -- Joel
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