From owner-freebsd-current@FreeBSD.ORG Tue Nov 10 14:07:08 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 406F11065694 for ; Tue, 10 Nov 2009 14:07:08 +0000 (UTC) (envelope-from gary.jennejohn@freenet.de) Received: from mout3.freenet.de (mout3.freenet.de [IPv6:2001:748:100:40::2:5]) by mx1.freebsd.org (Postfix) with ESMTP id C98F88FC1C for ; Tue, 10 Nov 2009 14:07:07 +0000 (UTC) Received: from [195.4.92.17] (helo=7.mx.freenet.de) by mout3.freenet.de with esmtpa (ID gary.jennejohn@freenet.de) (port 25) (Exim 4.69 #92) id 1N7rNC-0004xK-1z; Tue, 10 Nov 2009 15:07:06 +0100 Received: from t8597.t.pppool.de ([89.55.133.151]:47292 helo=ernst.jennejohn.org) by 7.mx.freenet.de with esmtpa (ID gary.jennejohn@freenet.de) (port 25) (Exim 4.69 #94) id 1N7rNB-0003yV-RA; Tue, 10 Nov 2009 15:07:06 +0100 Date: Tue, 10 Nov 2009 15:07:05 +0100 From: Gary Jennejohn To: S.N.Grigoriev Message-ID: <20091110150705.648bce4f@ernst.jennejohn.org> In-Reply-To: <12631257861469@webmail52.yandex.ru> References: <1031257439203@webmail57.yandex.ru> <20091105184925.16b55c43@ernst.jennejohn.org> <31221257446063@webmail71.yandex.ru> <20091106101943.5a763f43@ernst.jennejohn.org> <41361257585651@webmail39.yandex.ru> <20091107115256.3df62bc3@ernst.jennejohn.org> <1257618758.1511.14.camel@RabbitsDen> <6511257846119@webmail85.yandex.ru> <20091110105856.1270038e@ernst.jennejohn.org> <12631257861469@webmail52.yandex.ru> X-Mailer: Claws Mail 3.7.2 (GTK+ 2.16.2; amd64-portbld-freebsd8.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: freebsd-current@freebsd.org, "Alexandre \"Sunny\" Kovalenko" Subject: Re: 8.0RC2 amd64 - kernel panic running make buildworld X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: gary.jennejohn@freenet.de List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Nov 2009 14:07:08 -0000 On Tue, 10 Nov 2009 16:57:49 +0300 S.N.Grigoriev wrote: > > > 10.11.09, 10:58, "Gary Jennejohn" > wrote: > > > I've seen panics like this myself and they were almost always caused > > by faulty memory. Running "make buildworld" really stresses the > > system and reveals hardware faults like that. > > Is there a non-zero probability that 7-stable irrespective of faulty memory > ALWAYS works fine on the same hardware (including 'make -j 8 buildworld') > but 8.0 ALWAYS crashes? > Who can say? Newer versions of FreeBSD could be more aggressive in their memory usage. Other parts of the kernel like the ATA/AHCI subsystem also use hardware capabilities more fully. It seems that the kernel is not seeing any panic, otherwise it should land in the debugger. This points to some hardware problem, especially since other users are not reporting crashes like you see. --- Gary Jennejohn