From owner-cvs-src@FreeBSD.ORG Wed Jun 30 01:14:51 2004 Return-Path: Delivered-To: cvs-src@freebsd.org Received: by hub.freebsd.org (Postfix, from userid 758) id 51CF116A4CF; Wed, 30 Jun 2004 01:14:51 +0000 (GMT) Date: Wed, 30 Jun 2004 01:14:51 +0000 From: Kris Kennaway To: Tor Egge Message-ID: <20040630011451.GA86791@hub.freebsd.org> References: <200406282026.i5SKQZZQ062647@repoman.freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200406282026.i5SKQZZQ062647@repoman.freebsd.org> User-Agent: Mutt/1.4.1i cc: cvs-src@FreeBSD.org cc: src-committers@FreeBSD.org cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/vm vm_object.c X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Jun 2004 01:14:51 -0000 On Mon, Jun 28, 2004 at 08:26:35PM +0000, Tor Egge wrote: > tegge 2004-06-28 20:26:35 UTC > > FreeBSD src repository > > Modified files: > sys/vm vm_object.c > Log: > Initialize result->backing_object_offset before linking result onto the list of > vm objects shadowing source in vm_object_shadow(). This closes a race where > vm_object_collapse() could be called with a partially uninitialized object > argument causing symptoms that looked like hardware problems, e.g. signal 6, > 10, 11 or a /bin/sh busy-waiting for a nonexistant child process. > > Revision Changes Path > 1.325 +5 -5 src/sys/vm/vm_object.c Sweet..this sounds like the bug that was exposed by turning ithread preemption back on. I'll update and see if it's gone. Kris -- In God we Trust -- all others must submit an X.509 certificate. -- Charles Forsythe