From owner-freebsd-alpha Wed Mar 14 17:22:58 2001 Delivered-To: freebsd-alpha@freebsd.org Received: from meow.osd.bsdi.com (meow.osd.bsdi.com [204.216.28.88]) by hub.freebsd.org (Postfix) with ESMTP id 305A937B719 for ; Wed, 14 Mar 2001 17:22:56 -0800 (PST) (envelope-from jhb@FreeBSD.org) Received: from laptop.baldwin.cx (john@jhb-laptop.osd.bsdi.com [204.216.28.241]) by meow.osd.bsdi.com (8.11.2/8.11.2) with ESMTP id f2F1MJG89419; Wed, 14 Mar 2001 17:22:19 -0800 (PST) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.4.0 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <15024.5454.615759.779564@grasshopper.cs.duke.edu> Date: Wed, 14 Mar 2001 17:22:00 -0800 (PST) From: John Baldwin To: Andrew Gallatin Subject: Re: Deadlocks, whee! Cc: alpha@FreeBSD.org Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On 15-Mar-01 Andrew Gallatin wrote: > > 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? I need to crack the case open and move the jumper over so that it does a halt instead of a reboot. :( I just need to get off my duff and do that (along with 10 million other things) and then take it from there. > Drew -- John Baldwin -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message