From owner-freebsd-alpha Mon Feb 25 3:54:35 2002 Delivered-To: freebsd-alpha@freebsd.org Received: from srv1.cosmo-project.de (srv1.cosmo-project.de [213.83.6.106]) by hub.freebsd.org (Postfix) with ESMTP id 85E6737B400 for ; Mon, 25 Feb 2002 03:54:26 -0800 (PST) Received: (from uucp@localhost) by srv1.cosmo-project.de (8.11.6/8.11.6) with UUCP id g1PBsOL29242; Mon, 25 Feb 2002 12:54:24 +0100 (CET) (envelope-from ticso@cicely8.cicely.de) Received: from cicely8.cicely.de (cicely8.cicely.de [10.1.2.10]) by cicely5.cicely.de (8.12.1/8.12.1) with ESMTP id g1PBp1Yd069976; Mon, 25 Feb 2002 12:51:01 +0100 (CET)?g (envelope-from ticso@cicely8.cicely.de) Received: (from ticso@localhost) by cicely8.cicely.de (8.11.6/8.11.6) id g1PBoxq72187; Mon, 25 Feb 2002 12:50:59 +0100 (CET) (envelope-from ticso) Date: Mon, 25 Feb 2002 12:50:59 +0100 From: Bernd Walter To: Christian Weisgerber Cc: freebsd-alpha@FreeBSD.ORG Subject: Re: -CURRENT lockups Message-ID: <20020225115058.GB72127@cicely8.cicely.de> References: <20020224140250.GG64936@cicely8.cicely.de> <20020224180950.GA69066@cicely8.cicely.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.3.26i X-Operating-System: FreeBSD cicely8.cicely.de 5.0-CURRENT i386 Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Mon, Feb 25, 2002 at 02:53:07AM +0000, Christian Weisgerber wrote: > Bernd Walter wrote: > > > If it's realy with a lockmgr lock you should enable debugging for it: > > options KTR > > options KTR_EXTEND > > options KTR_ENTRIES=1024 > > options KTR_COMPILE="(KTR_LOCKMGR)" > > options KTR_MASK=KTR_LOCKMGR > > options KTR_CPUMASK=0x3 > > options KTR_VERBOSE > > This doesn't seem realistic. Just how often is lockmgr() called? > > > In case it's to chatty on booting you can set KTR_MASK to 0 and enable > > it later with sysctl debug.ktr.mask=0x00020000. > > Well, after an hour the boot hasn't gone anywhere. Sorry - I should have known. The vebose output slows things to much down. Usually one would disable verboseity and check the buffer from ddb. I have no idea about how difficult it is to read the buffer from srm. Interestingly I had two full hangs with my noname yesterday. SCSI channel was active but the box did not even react on the halt button. All I did was an installworld on a local disc with src and obj on nfs. -- B.Walter COSMO-Project http://www.cosmo-project.de ticso@cicely.de Usergroup info@cosmo-project.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message