Re: Expert input required: P4 odd signals, no apparent memoryfault, DISABLE_PSE?

2003-10-20 Thread Jan Grant
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.)

-- 
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/
Prolog in JavaScript: http://ioctl.org/logic/prolog-latest
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Solved. Re: Expert input required: P4 odd signals, no apparent memoryfault, DISABLE_PSE?

2003-10-20 Thread Jan Grant
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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