From owner-freebsd-hackers Tue Mar 12 14: 6:29 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from patrocles.silby.com (d24.as2.nwbl0.wi.voyager.net [169.207.92.24]) by hub.freebsd.org (Postfix) with ESMTP id 1551137B405 for ; Tue, 12 Mar 2002 14:06:25 -0800 (PST) Received: from patrocles.silby.com (localhost [127.0.0.1]) by patrocles.silby.com (8.12.2/8.12.2) with ESMTP id g2CGBCjJ015993; Tue, 12 Mar 2002 16:11:12 GMT (envelope-from silby@silby.com) Received: from localhost (silby@localhost) by patrocles.silby.com (8.12.2/8.12.2/Submit) with ESMTP id g2CGBAcI015990; Tue, 12 Mar 2002 16:11:12 GMT X-Authentication-Warning: patrocles.silby.com: silby owned process doing -bs Date: Tue, 12 Mar 2002 16:11:10 +0000 (GMT) From: Mike Silbersack To: Terry Lambert Cc: "Clark C . Evans" , Subject: Re: panic: pmap_enter In-Reply-To: <3C8E703D.430CEC4E@mindspring.com> Message-ID: <20020312160818.T14552-100000@patrocles.silby.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Tue, 12 Mar 2002, Terry Lambert wrote: > No, I mean allocate kernel memory pages. As I said, 4M pages > are not permitted to be swapped, so they should never go through > the swap code. > > Because of this, a fault indicating that there is not a page > present behind some of the memory is fatal. Whoa, slow down Terry! He pasted the entire traceback in his second message, and it looks like the ffs code is where the fault is occuring. Clark confirmed that he was not using a 8:1 frag:block ratio on the MFS partition, so that was probably the problem. He's trying out different MFS settings, and I assume we'll hear back from him once he can determine whether that fixed the problem or not. In the meantime, stop hypothesizing about 4MB pages, and go figure out why the FFS code can't handle other frag:block ratios. :) Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message