From owner-freebsd-current@FreeBSD.ORG Mon Jan 10 19:42:23 2005 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 1864616A4CE for ; Mon, 10 Jan 2005 19:42:23 +0000 (GMT) Received: from relay.pair.com (relay00.pair.com [209.68.1.20]) by mx1.FreeBSD.org (Postfix) with SMTP id 797E643D39 for ; Mon, 10 Jan 2005 19:42:22 +0000 (GMT) (envelope-from pho@holm.cc) Received: (qmail 43373 invoked from network); 10 Jan 2005 19:42:21 -0000 Received: from unknown (HELO peter.osted.lan) (unknown) by unknown with SMTP; 10 Jan 2005 19:42:21 -0000 X-pair-Authenticated: 80.164.63.199 Received: from peter.osted.lan (localhost.osted.lan [127.0.0.1]) by peter.osted.lan (8.13.1/8.13.1) with ESMTP id j0AJgKiI064234; Mon, 10 Jan 2005 20:42:20 +0100 (CET) (envelope-from pho@peter.osted.lan) Received: (from pho@localhost) by peter.osted.lan (8.13.1/8.13.1/Submit) id j0AJgKTq064233; Mon, 10 Jan 2005 20:42:20 +0100 (CET) (envelope-from pho) Date: Mon, 10 Jan 2005 20:42:20 +0100 From: Peter Holm To: Bosko Milekic Message-ID: <20050110194220.GA64197@peter.osted.lan> References: <20041222210553.GA28108@peter.osted.lan> <20041222221540.GA70052@technokratis.com> <20041226161153.GA74592@peter.osted.lan> <20041226181738.GA21533@technokratis.com> <20041226225651.GA87178@peter.osted.lan> <20041227013745.GA5267@technokratis.com> <20041227040216.GA44588@technokratis.com> <20041228084731.GA766@peter.osted.lan> <20041228135339.GA80377@technokratis.com> <20050110185104.GA22091@technokratis.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050110185104.GA22091@technokratis.com> User-Agent: Mutt/1.4.2.1i cc: current@freebsd.org Subject: Re: panic: uma_zone_slab is looping 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, 10 Jan 2005 19:42:23 -0000 On Mon, Jan 10, 2005 at 01:51:04PM -0500, Bosko Milekic wrote: > > Peter, > > Any updates? should I commit the fix I sent you? > Your patch seems to work for me. I have been testing non stop for weeks and not seen any uma problems. - Peter > -Bosko > > On Tue, Dec 28, 2004 at 08:53:39AM -0500, Bosko Milekic wrote: > > > > On Tue, Dec 28, 2004 at 09:47:31AM +0100, Peter Holm wrote: > > > On Sun, Dec 26, 2004 at 11:02:16PM -0500, Bosko Milekic wrote: > > > > > I'll have to reserve some more time to think about this. One way I > > > > > think it might be solvable would be to change that check that > > > > > triggers the NULL return explicitly check for the bucketzone, and not > > > > > for all UMA_ZONE_INTERNAL zones; I need to think this through a little > > > > > more. > > > > > > > > Please try the attached patch and let me know if with it you can or > > > > cannot trigger the original (seemingly infinite) looping. Although I > > > > still haven't quite figured out how the described scenario could lead > > > > to infinite looping exactly (I did conclude that it could lead to some > > > > looping, though), the patch is worth trying as I believe the scenario > > > > *could* occur. > > > > > > > > > > After more than 18 hours of testing with your patch I ran into a > > > (unrelated ?) "panic: mutex vm object not owned": > > > http://www.holm.cc/stress/log/freeze06.html > > > > Your other (private) Email to me mentions that another developer has > > claimed this one. If/when he fixes it, it would be worthwhile to give > > it another consecutive 18 hours before we decide that "yes, it's good > > and it works." I am optimistic, but we have to be thorough. > > > > Good work, so far! > > > > Cheers, > > -- > > Bosko Milekic > > bmilekic@technokratis.com > > bmilekic@FreeBSD.org > > _______________________________________________ > > freebsd-current@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-current > > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > > -- > Bosko Milekic > bmilekic@technokratis.com > bmilekic@FreeBSD.org -- Peter Holm