From owner-freebsd-alpha Sat Sep 26 16:25:32 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id QAA02451 for freebsd-alpha-outgoing; Sat, 26 Sep 1998 16:25:32 -0700 (PDT) (envelope-from owner-freebsd-alpha@FreeBSD.ORG) Received: from nlsystems.com (nlsys.demon.co.uk [158.152.125.33]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id QAA02426; Sat, 26 Sep 1998 16:25:23 -0700 (PDT) (envelope-from dfr@nlsystems.com) Received: from herring.nlsystems.com (herring.nlsystems.com [10.0.0.2]) by nlsystems.com (8.9.1/8.8.5) with SMTP id AAA20102; Sun, 27 Sep 1998 00:25:34 +0100 (BST) Date: Sun, 27 Sep 1998 00:25:34 +0100 (BST) From: Doug Rabson To: Gary Palmer cc: "Justin T. Gibbs" , alpha@FreeBSD.ORG Subject: Re: Possible problem with wait syscall handling... In-Reply-To: <26941.906841300@gjp.erols.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Sat, 26 Sep 1998, Gary Palmer wrote: > "Justin T. Gibbs" wrote in message ID > <199809262003.OAA06853@pluto.plutotech.com>: > > Ken started up a buildworld on our Miata last night, but perhaps 40 > > minutes later, the machine started locking up. Ping worked, but > > old network connections were frozen and new network connections blocked > > after the initial connection. When I came in today and dropped into DDB, > > I found that almost every process on the box was sleeping on "wait". > > I continued and broke back into DDB two or three more times and suddenly > > the machine un-froze. Very bizarre. Assuming I can reproduce this, > > anyone have any ideas where I should start poking around to determine > > the cause? > > I've seen this on my alpha too. Blowing away the kernel compile tree and > rebuilding the kernel seemed, along with all of userland, seemed to fix it for > me. It only seemed to happen with parallel compiles. I gave Doug remote-gdb > stack traces, but could never get remote-gdb to give me a ps list to see what > things were blocking on :( I thought you were seeing memory fault panics in execve? Were you having the hang effect too? -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 951 1891 Fax: +44 181 381 1039 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message