Date: Mon, 20 Oct 2003 21:23:06 +0100 (BST) From: Jan Grant <Jan.Grant@bristol.ac.uk> To: Mike Tancsa <mike@sentex.net> Cc: stable@freebsd.org Subject: Solved. Re: Expert input required: P4 odd signals, no apparent memoryfault, DISABLE_PSE? Message-ID: <Pine.GSO.4.58.0310202119180.1903@mail.ilrt.bris.ac.uk> In-Reply-To: <Pine.GSO.4.58.0310201741070.1903@mail.ilrt.bris.ac.uk> References: <Pine.GSO.4.58.0310201625170.1903@mail.ilrt.bris.ac.uk> <6.0.0.22.0.20031020121053.07e575c0@209.112.4.2> <Pine.GSO.4.58.0310201741070.1903@mail.ilrt.bris.ac.uk>
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On Mon, 20 Oct 2003, Jan Grant wrote: > On Mon, 20 Oct 2003, Mike Tancsa wrote: > > > How recent is your copy of RELENG_4 ? The PSE disable code was committed > > to the tree already as well as a fix so it would work with APM on the > > 17th. By default it is disabled. If you look at your dmesg.boot you > > should see > > Warning: Pentium 4 CPU: PSE disabled > > Latest was pre-weekend; I'm just completing a fresh build now, so I hope > this'll lick the problem, thanks. (Incidentally this might well be worth > documenting in UPDATING since it's an issue that's been plaguing me [and > a few correspondents, according to emails I've had] for a while.) Well, I'm pleased to report what looks like success: as Mike indicated, PSE is now disabled automatically by default. I've tried repeating the activities which have recently been triggering memory corruption - so far with no ill effects. I'll keep the stress tests running overnight. -- jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/ Tel +44(0)117 9287088 Fax +44 (0)117 9287112 http://ioctl.org/jan/ "I think therefore I am." -- Ronnie Descartes
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