Date: Mon, 25 Aug 2003 22:30:09 -0700 (PDT) From: Mike Harding <mvh@ix.netcom.com> To: stable@freebsd.org Subject: Re: PAE removal patch for testing Message-ID: <20030826053009.B5B115320@netcom1.netcom.com> In-Reply-To: <20030826034451.GD61917@nexus.dglawrence.com> References: <5.2.0.9.0.20030825220024.07324008@209.112.4.2> <20030826022000.25AC22A7EA@canning.wemm.org> <20030826034451.GD61917@nexus.dglawrence.com>
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I did just get a crash after doing the 'short' patch - I am reverting to Aug. 7 code... - Mike H. > > Mike Tancsa wrote: > > > At 04:51 PM 25/08/2003 -0500, Mike Silbersack wrote: > > > > > > >Right now, anyone who is experiencing problems should definitely try that > > > >short patch which Mike Tancsa said works for him and confirm whether or > > > >not it fixes the issue on their system. > > > > > > The 2 servers I am running it on both have been stable since applying it. > > > ns4% uptime > > > 9:58PM up 2 days, 4:27, 2 users, load averages: 0.02, 0.03, 0.05 > > > ns4% > > > > > > would have rebooted several times by now. The other machine is also > > > stable. Both are quite busy mail routers. One also runs spamassassin via a > > > milter. > > > > This change matches -current and should probably be committed ASAP. > > I've reviewed it as well and it definitely is a bug that needs to be fixed > ASAP. Basically, the pmap_remove code in -stable doesn't handle the case of > crossing a page table boundry properly. If the next page table page isn't > currently mapped, then the kernel will [fatally] fault when trying to access > it.
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