From owner-freebsd-current@FreeBSD.ORG Thu Nov 12 16:34:09 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 3BB90106568F for ; Thu, 12 Nov 2009 16:34:09 +0000 (UTC) (envelope-from serguey-grigoriev@yandex.ru) Received: from forward9.mail.yandex.net (forward9.mail.yandex.net [77.88.61.48]) by mx1.freebsd.org (Postfix) with ESMTP id DF6F38FC18 for ; Thu, 12 Nov 2009 16:34:08 +0000 (UTC) Received: from webmail59.yandex.ru (webmail59.yandex.ru [77.88.61.4]) by forward9.mail.yandex.net (Yandex) with ESMTP id 4FCC2468C45; Thu, 12 Nov 2009 19:34:07 +0300 (MSK) Received: from localhost (localhost.localdomain [127.0.0.1]) by webmail59.yandex.ru (Yandex) with ESMTP id 3AEF1B6C128; Thu, 12 Nov 2009 19:34:07 +0300 (MSK) X-Yandex-Spam: 1 X-Yandex-Front: webmail59 X-Yandex-TimeMark: 1258043647 Received: from [89.223.19.70] ([89.223.19.70]) by mail.yandex.ru with HTTP; Thu, 12 Nov 2009 19:34:06 +0300 From: S.N.Grigoriev To: Andriy Gapon In-Reply-To: <4AFC0F6A.3000501@icyb.net.ua> 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> <1257864452.46072.25.camel@RabbitsDen> <20091110162205.48abcffe@ernst.jennejohn.org> <4AF99D53.9030005@icyb.net.ua> <941257966918@webmail42.yandex.ru> <4AFC0F6A.3000501@icyb.net.ua> MIME-Version: 1.0 Message-Id: <36041258043646@webmail59.yandex.ru> Date: Thu, 12 Nov 2009 19:34:06 +0300 X-Mailer: Yamail [ http://yandex.ru ] 5.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain Cc: freebsd-current@freebsd.org Subject: Re: 8.0RC2 amd64 - kernel panic running make buildworld 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: Thu, 12 Nov 2009 16:34:09 -0000 12.11.09, 15:36, "Andriy Gapon" wrote: > Serguey, > are you sure that setting vm.pmap.pg_ps_enabled=0 doesn't help you? > I know that already asked you this once. > But, could you please try again with vm.pmap.pg_ps_enabled=0 and hw.mca.enabled=1 > and see what kind of behavior you get? > I am curious what would happen, would it be the same kind of machine check condition. Andriy, I've done the world compilation with 'vm.pmap.pg_ps_enabled=0'. The first attempt has finished with silent reboot. The second one has been captured by the debugger: panic: backgroundwritedone: lost buffer cpuid = 0 KDB: enter: panic [thread pid 3 tid 100014 ] Stopped at breakpoint+0x5: leave -- Regards, S.Grigoriev.