From owner-freebsd-current Wed Dec 18 21:15:20 2002 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1C19637B401 for ; Wed, 18 Dec 2002 21:15:19 -0800 (PST) Received: from wantadilla.lemis.com (wantadilla.lemis.com [192.109.197.80]) by mx1.FreeBSD.org (Postfix) with ESMTP id CA7FF43EC5 for ; Wed, 18 Dec 2002 21:15:17 -0800 (PST) (envelope-from grog@lemis.com) Received: by wantadilla.lemis.com (Postfix, from userid 1004) id 3577251997; Thu, 19 Dec 2002 15:45:21 +1030 (CST) Date: Thu, 19 Dec 2002 15:45:21 +1030 From: Greg 'groggy' Lehey To: Dan Nelson Cc: FreeBSD current users Subject: Re: Frequent lockups with SMP and heavy NFS access Message-ID: <20021219051521.GB53089@wantadilla.lemis.com> References: <20021219043020.GA53089@wantadilla.lemis.com> <20021219043607.GB54615@dan.emsphone.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20021219043607.GB54615@dan.emsphone.com> User-Agent: Mutt/1.4i Organization: The FreeBSD Project Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.FreeBSD.org/ X-PGP-Fingerprint: 9A1B 8202 BCCE B846 F92F 09AC 22E6 F290 507A 4223 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Wednesday, 18 December 2002 at 22:36:08 -0600, Dan Nelson wrote: > In the last episode (Dec 19), Greg 'groggy' Lehey said: >> I've been experiencing a lot of lockups (system completely dead, no >> reaction at the keyboard, can't ping) on an Intel SMP machine running >> CURRENT. Normally I do my kernel builds over NFS, but in the last >> few months I haven't been able to complete a 'make world'. Along >> with -DNOCLEAN I can get a build done in about 4 attempts; local >> builds work fine. NFS builds also work fine with other single >> processor machines. >> >> Questions: >> >> 1. Has anybody else seen this? >> 2. How should I approach looking for the problem? > > I've seen intermittent lockups where everything is dead, but I can > break into DDB via serial console. They may be NFS-related, as it > often crashes a half-hour before I get in to work, which could be due > to co-workers trying to bulid from my NFS-exported ports tree. ps > inside DDB doesn't show anything obviously wrong to my untrained eyes. Well, then at least you can get a dump and others can look. In my case, the machine is completely catatonic. Greg -- See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message