From owner-freebsd-current@FreeBSD.ORG Mon Nov 15 13:36:50 2004 Return-Path: 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 C307616A4CE for ; Mon, 15 Nov 2004 13:36:50 +0000 (GMT) Received: from fledge.watson.org (fledge.watson.org [204.156.12.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4116E43D49 for ; Mon, 15 Nov 2004 13:36:50 +0000 (GMT) (envelope-from robert@fledge.watson.org) Received: from fledge.watson.org (localhost [127.0.0.1]) by fledge.watson.org (8.13.1/8.13.1) with ESMTP id iAFDZQEY081081; Mon, 15 Nov 2004 08:35:26 -0500 (EST) (envelope-from robert@fledge.watson.org) Received: from localhost (robert@localhost)iAFDZQah081078; Mon, 15 Nov 2004 13:35:26 GMT (envelope-from robert@fledge.watson.org) Date: Mon, 15 Nov 2004 13:35:26 +0000 (GMT) From: Robert Watson X-Sender: robert@fledge.watson.org To: Martin Blapp In-Reply-To: <20041115142036.D53544@cvs.imp.ch> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: current@freebsd.org Subject: Re: Deadlock problems with 'kill PID' on CURRENT X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Nov 2004 13:36:50 -0000 On Mon, 15 Nov 2004, Martin Blapp wrote: > > syscons is typically a sign that some thread holding Giant is spinning, or > > that Giant has been leaked. Alternatively, some other lock is leaked, and > > a thread with Giant waits on that lock. You may be able to get into DDB > > using the serial console as it doesn't require Giant (or you might not). > > I was not able to get into DDB over serial console. Sorry for not saying > this exactly. Hardlock. Any chance that any of the boxes has an NMI button? Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Principal Research Scientist, McAfee Research