From owner-freebsd-current@FreeBSD.ORG  Tue Nov 30 06:42:48 2004
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
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 877A016A4CE
	for <current@freebsd.org>; Tue, 30 Nov 2004 06:42:48 +0000 (GMT)
Received: from mail.chesapeake.net (chesapeake.net [208.142.252.6])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 2693543D48
	for <current@freebsd.org>; Tue, 30 Nov 2004 06:42:48 +0000 (GMT)
	(envelope-from jroberson@chesapeake.net)
Received: from mail.chesapeake.net (localhost [127.0.0.1])
	by mail.chesapeake.net (8.12.10/8.12.10) with ESMTP id iAU6d20N069546;
	Tue, 30 Nov 2004 01:39:02 -0500 (EST)
	(envelope-from jroberson@chesapeake.net)
Received: from localhost (jroberson@localhost)iAU6d2sP069543;
	Tue, 30 Nov 2004 01:39:02 -0500 (EST)
	(envelope-from jroberson@chesapeake.net)
X-Authentication-Warning: mail.chesapeake.net: jroberson owned process doing
	-bs
Date: Tue, 30 Nov 2004 01:39:01 -0500 (EST)
From: Jeff Roberson <jroberson@chesapeake.net>
To: Peter Holm <peter@holm.cc>
In-Reply-To: <20041123013054.GA38804@peter.osted.lan>
Message-ID: <20041130013802.J85758@mail.chesapeake.net>
References: <20041120000743.G18094@mail.chesapeake.net>
	<41A1C3BD.4010903@fer.hr><20041123013054.GA38804@peter.osted.lan>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
cc: current@freebsd.org
cc: Ivan Voras <ivoras@fer.hr>
Subject: Re: Giantless VFS.
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 30 Nov 2004 06:42:48 -0000


On Tue, 23 Nov 2004, Peter Holm wrote:

> On Mon, Nov 22, 2004 at 06:46:50AM -0500, Jeff Roberson wrote:
> > On Mon, 22 Nov 2004, Ivan Voras wrote:
> >
> > > Jeff Roberson wrote:
> > >
> > > > The short description:
> > > > This patch removes Giant from the read(), write(), and fstat() syscalls,
> > > > as well as page faults, and bufdone (io interrupts) when using FFS.  It
> > >
> > > What is the plan re: RELENG_5? Will things like this (giantless vm, fs)
> > > be merged into it?
> >
> > The giantless vm was already merged back to RELENG_5 and enabled on amd64,
> > and i386.  I hope to merge the giantless vfs back after a month or so of
> > no problems on -current.  I hope to commit it to -current this week.
> >
> > I haven't received any feedback from the list though.  I hope people are
> > testing it.  Perhaps the silence indicates universal success? :-)
> >
>
> Here's a problem I ran into during stress test:
>
> http://www.holm.cc/stress/log/jeff01.html
>
> Let me know if you need more gdb output.

Thanks, this is the most serious bug of the couple that were reported.  It
indicates a possible race to flush a buffer.  I'm still looking for this.
What steps did you take to produce this panic?

>
> - Peter
>
> > > _______________________________________________
> > > 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"
> > >
> > _______________________________________________
> > 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"
>