From owner-freebsd-alpha Wed Mar 14 17: 5:51 2001 Delivered-To: freebsd-alpha@freebsd.org Received: from duke.cs.duke.edu (duke.cs.duke.edu [152.3.140.1]) by hub.freebsd.org (Postfix) with ESMTP id 4459437B71A; Wed, 14 Mar 2001 17:05:49 -0800 (PST) (envelope-from gallatin@cs.duke.edu) Received: from grasshopper.cs.duke.edu (grasshopper.cs.duke.edu [152.3.145.30]) by duke.cs.duke.edu (8.9.3/8.9.3) with ESMTP id UAA29503; Wed, 14 Mar 2001 20:05:48 -0500 (EST) Received: (from gallatin@localhost) by grasshopper.cs.duke.edu (8.11.3/8.9.1) id f2F15IF09447; Wed, 14 Mar 2001 20:05:18 -0500 (EST) (envelope-from gallatin@cs.duke.edu) From: Andrew Gallatin MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15024.5454.615759.779564@grasshopper.cs.duke.edu> Date: Wed, 14 Mar 2001 20:05:18 -0500 (EST) To: John Baldwin Cc: alpha@FreeBSD.org Subject: Re: Deadlocks, whee! In-Reply-To: References: <15024.3948.98001.417245@grasshopper.cs.duke.edu> X-Mailer: VM 6.75 under 21.1 (patch 12) "Channel Islands" XEmacs Lucid Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org John Baldwin writes: > > On 15-Mar-01 Andrew Gallatin wrote: > > > > John Baldwin writes: > > > Hi all, > > > > > > I managed to deadlock my alpha yesterday with a -j 4 buildworld. > > Previously it > > > would die when it trapped with a raised IPL as a blockable mtx_lock() of > > lockmgr > > > in trap(). I'm not sure if these two things are related or not. I'll try > > a > > > normal world without -j X today to see if it fairs better. Just FYI for > > those > > > running current that heavy load may deadlock right now. :( > > > > The machine is really deadlocked, or just one process is wedged and > > the buildworld stalled? > > Well, no messages on the console, no ddb (I have vidconsole), no pings, etc. > So interrupts aren't getting through, or if they are their threads aren't > running, and since I use preemption on this alpha, that is very, very unlikely. > I'm assuming it is genuinely deadlocked or possibly spinning somewhere with a > raised IPL. Do you have a halt button? If so, what does the console tell you your PC and RA are? Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message