Date: Tue, 26 Aug 2003 07:58:54 -0400 From: Mike Tancsa <mike@sentex.net> To: Mike Harding <mvh@ix.netcom.com>, stable@freebsd.org Subject: Re: PAE removal patch for testing Message-ID: <5.2.0.9.0.20030826075826.07d6a660@209.112.4.2> In-Reply-To: <20030826053009.B5B115320@netcom1.netcom.com> References: <20030826034451.GD61917@nexus.dglawrence.com> <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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What do your panic's look like ? Do you have a crash dump with debug kernel ?
---Mike
At 10:30 PM 25/08/2003 -0700, Mike Harding wrote:
>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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