From owner-freebsd-smp Mon Dec 23 01:19:29 1996 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id BAA25781 for smp-outgoing; Mon, 23 Dec 1996 01:19:29 -0800 (PST) Received: from mail001.mediacity.com (mail001.mediacity.com [206.24.105.68]) by freefall.freebsd.org (8.8.4/8.8.4) with SMTP id BAA25776 for ; Mon, 23 Dec 1996 01:19:26 -0800 (PST) From: brian@mediacity.com Received: (qmail-queue invoked from smtpd); 23 Dec 1996 09:19:02 -0000 Received: from home001.mediacity.com (HELO mediacity.com) (qmailr@206.24.105.66) by mail001.mediacity.com with SMTP; 23 Dec 1996 09:19:02 -0000 Received: (qmail-queue invoked by uid 100); 23 Dec 1996 09:18:08 -0000 Message-ID: <19961223091808.7334.qmail@mediacity.com> Subject: Re: (long) P6 and ??? TLB shootdown ??? To: erich@uruk.org (Erich Boleyn) Date: Mon, 23 Dec 1996 01:18:08 -0800 (PST) Cc: smp@freebsd.org In-Reply-To: from Erich Boleyn at "Dec 22, 96 10:38:07 am" Reply-To: brian@mediacity.com X-Mailer: ELM [version 2.4ME+ PL22 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Erich Boleyn wrote: > Hi all. I spent the last few days doing debugging exercises with > FreeBSD-SMP on my P6 SMP test box. The results were interesting. > > First of all, I dug around in the debugger more, always getting an > error message and stack traceback that always looks like the following > (modulo some differences in the "fault virtual address" and the > "current process" stuff): I get the identical fault, at the same point, running on my P6 ASUS 2xPP200 motherboard. brian@mediacity.com > > ---------------------------(start DDB stuff)-------------------------------- > Fatal trap 12: page fault while in kernel mode ... > kernel: type 12 trap, code=0 > Stopped at _pmap_enter+0x8f: movl 0(%ecx),%ecx