From owner-freebsd-stable@FreeBSD.ORG Fri Mar 11 13:58:22 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DFC6116A4CE for ; Fri, 11 Mar 2005 13:58:22 +0000 (GMT) Received: from rocky.mintel.co.uk (rocky2.mintel.com [217.206.187.69]) by mx1.FreeBSD.org (Postfix) with ESMTP id 145D143D79 for ; Fri, 11 Mar 2005 13:58:22 +0000 (GMT) (envelope-from jason.thomson@mintel.com) Received: from [10.0.62.5] ([10.0.62.5]) by rocky.mintel.co.uk (8.12.8p1/8.12.8) with ESMTP id j2BDvubb041351; Fri, 11 Mar 2005 13:57:56 GMT (envelope-from jason.thomson@mintel.com) Message-ID: <4231A3E4.4070605@mintel.com> Date: Fri, 11 Mar 2005 13:57:56 +0000 From: Jason Thomson User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7) Gecko/20040616 X-Accept-Language: en, en-us MIME-Version: 1.0 To: Emmanuel OTTON References: <6290d171fce4e3b4ee88f403a4aac711@enstimac.fr> <42317CF3.20903@mintel.com> <942faaf51f9210be76c25158da4d1b86@enstimac.fr> In-Reply-To: <942faaf51f9210be76c25158da4d1b86@enstimac.fr> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.28 (www . roaringpenguin . com / mimedefang) cc: freebsd-stable@freebsd.org Subject: Re: PAE+SMP panic with "page fault while in kernel mode" in many files opened situations X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Mar 2005 13:58:23 -0000 Emmanuel OTTON wrote: > > Le 11 mars 05, à 12:11, Jason Thomson a écrit : > >> If you disable the logical processors in the BIOS, this problem >> should go away. >> >> We ended up reverting to 4-STABLE for other reasons. > > > Thanks for your answer. > > The problem is still there, unfortunately. > > Crashes no more on pagedaemon though, for a change, but on irq48:em0... > > Would you have KVA_PAGES / maxvnodes recommendation for this case ? > > Was your answer based on painful trial-and-error, or is there a logical > reason (known bad HTT or PAE or Xeon support) ? > > Should I revert to 4-STABLE to get solid PAE+SMP support ? > > -- > Emmanuel OTTON - Ecole des Mines d'Albi-Carmaux - Responsable informatique > Tél: 05 63 49 30 86 > We had KVA_PAGES=768. It's now at KVA_PAGES=672 to give us the right balance between KVM & usable process size. We spent a few (4 hours) trying to get 5-STABLE to work properly. It would reliably crash when running make -j 4 buildworld. When we disabled the logical processors in the BIOS, make -j 4 buildworld would succeed. Also, we disabled the USB subsystem in the BIOS. I don't know whether you have already. It looks like you haven't from your first post. This is advisable. In any case, we reverted to 4-STABLE. We needed the patches posted to this list to enable us to use PAE + amr driver. Since reverting it has been completely stable. (And very very fast:-) I didn't post anything to the list regarding our problems, because we weren't able to get a crashdump.