Date: Mon, 20 Oct 2003 12:15:01 -0400 From: Mike Tancsa <mike@sentex.net> To: Jan Grant <Jan.Grant@bristol.ac.uk>, stable@freebsd.org Subject: Re: Expert input required: P4 odd signals, no apparent memory fault, DISABLE_PSE? Message-ID: <6.0.0.22.0.20031020121053.07e575c0@209.112.4.2> In-Reply-To: <Pine.GSO.4.58.0310201625170.1903@mail.ilrt.bris.ac.uk> References: <Pine.GSO.4.58.0310201625170.1903@mail.ilrt.bris.ac.uk>
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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
---Mike
At 11:38 AM 20/10/2003, Jan Grant wrote:
>I'm tracking -STABLE on a 1.8GHz P4 with 512MB of memory. Roughly since
>the PAE changes were MFCed, I've been seeing memory-corruption-related
>errors under specific circumstances: for example, a run of
> portsdb -fUu
>can be guaranteed to generate SIGBUS, SIGILL and SIGSEGVs in a handful
>of sh, sed, etc. processes.
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