Date: Tue, 14 Oct 2003 21:57:12 -0400 From: Barney Wolff <barney@databus.com> To: current@freebsd.org Subject: "pmap_enter: attempted pmap_enter on 4MB page Message-ID: <20031015015712.GA85828@pit.databus.com>
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I've been getting subject panics lately. A sure way to provoke them is to portupgrade -ap. Sooner or later, panic. With the latest build: FreeBSD lab.databus.com 5.1-CURRENT FreeBSD 5.1-CURRENT #1: Tue Oct 14 01:41:23 EDT 2003 it seemed to last longer (almost 30 min!) before failing. HW is Asus A7M266-D with 2xAthlon 2200+, 1GB, Adaptec 39160, 2x10k disks, em0, fxp0. I have (with a slightly older build) tried DISABLE_PSE and DISABLE_PG_G with no visible effect. I believe this started about 10/4/03, but the first few panics were "PTE vanished". With builds in the last couple of days, the panic changed to the "4MB page" one. I cannot rule out hardware, since this system has also lately been getting sig11's on buildworld - but mbmon shows no excessive temp and sensible rpms & volts. Before 10/4, this system was rock solid. One oddity is that I can't get a UP kernel to boot - possibly because the bios is set to apic interrupts. If needed, I can make it happen again and get a traceback, or build an older kernel. I've been hoping for a magical fix, without success so far. Thanks for any advice, Barney
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