From owner-freebsd-current@FreeBSD.ORG Sun Jan 22 16:35:41 2012 Return-Path: Delivered-To: current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8F13C10656DF; Sun, 22 Jan 2012 16:35:41 +0000 (UTC) (envelope-from glebius@FreeBSD.org) Received: from cell.glebius.int.ru (glebius.int.ru [81.19.64.117]) by mx1.freebsd.org (Postfix) with ESMTP id 106F78FC19; Sun, 22 Jan 2012 16:35:40 +0000 (UTC) Received: from cell.glebius.int.ru (localhost [127.0.0.1]) by cell.glebius.int.ru (8.14.5/8.14.5) with ESMTP id q0MGZd8V029315; Sun, 22 Jan 2012 20:35:39 +0400 (MSK) (envelope-from glebius@FreeBSD.org) Received: (from glebius@localhost) by cell.glebius.int.ru (8.14.5/8.14.5/Submit) id q0MGZdRI029314; Sun, 22 Jan 2012 20:35:39 +0400 (MSK) (envelope-from glebius@FreeBSD.org) X-Authentication-Warning: cell.glebius.int.ru: glebius set sender to glebius@FreeBSD.org using -f Date: Sun, 22 Jan 2012 20:35:39 +0400 From: Gleb Smirnoff To: Andriy Gapon Message-ID: <20120122163539.GF16676@glebius.int.ru> References: <20120117110242.GD12760@glebius.int.ru> <20120120154158.GD16676@FreeBSD.org> <4F1ABFF3.9090305@FreeBSD.org> MIME-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline In-Reply-To: <4F1ABFF3.9090305@FreeBSD.org> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: current@FreeBSD.org Subject: Re: new panic in cpu_reset() with WITNESS X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Sun, 22 Jan 2012 16:35:41 -0000 On Sat, Jan 21, 2012 at 03:38:59PM +0200, Andriy Gapon wrote: A> on 20/01/2012 17:41 Gleb Smirnoff said the following: A> > A> > On Tue, Jan 17, 2012 at 03:02:42PM +0400, Gleb Smirnoff wrote: A> > T> New panic has been introduced somewhere between A> > T> r229851 and r229932, that happens on shutdown if A> > T> kernel has WITNESS and doesn't have WITNESS_SKIPSPIN. A> > A> > I've run through binary search and panic was introduced A> > by r229854. A> > A> A> Which means that it was introduced by one of the earlier commits (probably A> mine). Thank you for this investigative work! A> Although, to be frank and honest, I still don't see how the problem could be A> a non-issue before. I can confirm that I can reboot succesfully with a new kernel and kern.stop_scheduler_on_panic=0. -- Totus tuus, Glebius.