From owner-freebsd-current@FreeBSD.ORG Tue Nov 17 15:53:08 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 71C911065695 for ; Tue, 17 Nov 2009 15:53:08 +0000 (UTC) (envelope-from gallasch@free.de) Received: from smtp.free.de (smtp.free.de [91.204.6.103]) by mx1.freebsd.org (Postfix) with ESMTP id C253A8FC19 for ; Tue, 17 Nov 2009 15:53:07 +0000 (UTC) Received: (qmail 25757 invoked from network); 17 Nov 2009 16:53:06 +0100 Received: from smtp.free.de (HELO orwell.free.de) (gallasch@free.de@[91.204.4.103]) (envelope-sender ) by smtp.free.de (qmail-ldap-1.03) with AES128-SHA encrypted SMTP for ; 17 Nov 2009 16:53:06 +0100 Date: Tue, 17 Nov 2009 16:53:04 +0100 From: Kai Gallasch To: Andriy Gapon Message-ID: <20091117165304.01676555@orwell.free.de> In-Reply-To: <4B025FA9.7020003@icyb.net.ua> References: <1031257439203@webmail57.yandex.ru> <941257966918@webmail42.yandex.ru> <200911111504.14906.jhb@freebsd.org> <20091112195932.5875387e@orwell.free.de> <4AFD140D.7010407@icyb.net.ua> <20091113144804.2c0fb90f@orwell.free.de> <4AFD655E.5020801@icyb.net.ua> <20091114022121.217dd831@orwell.free.de> <4AFE7A32.7060203@icyb.net.ua> <4B025FA9.7020003@icyb.net.ua> X-Mailer: Claws Mail 3.7.0 (GTK+ 2.18.2; powerpc-apple-darwin9.7.0) X-Face: 7"x0zA5=*cXGZw-xjU<">'+!3(KXTUXZVLD42KVN{'go[UQr"Mc.e(XW92N8plZ(9x.{x; I<|95e+b&GH-36\15F~L$YD*Y +u}o&KV?6.%"mJIkaY3G>BKNt`1|Y+%K1P4t; 47D65&(Y7h5Ll-[ltkhamx.-; ,jggK'}oMpUgEHFG YQ"9oXKAl>!d,J}T{)@uxvfu?YFWC*\~h+,^f Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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: Tue, 17 Nov 2009 15:53:08 -0000 Am Tue, 17 Nov 2009 10:32:41 +0200 schrieb Andriy Gapon : > on 14/11/2009 11:36 Andriy Gapon said the following: > > on 14/11/2009 03:21 Kai Gallasch said the following: > >> Hi. The patch did help for surviving a makeworld. > >> > >> But now I have another machine check exception with this server. It > >> happened with your patch active, and vm.pmap.pg_ps_enabled="1". I > >> copied data from a remote server by NFS mount to the instable > >> server. Destination was a local ZFS filesystem. > >> > >> ---------------- > >> > >> sonnenkraft:~ # MCA: CPU 7 UNCOR PCC OVER DTLB L1 error > >> MCA: Address 0xff800d860000 > > > > It's interesting because the same happened to me too, only in my > > case it was zpool scrub that triggered it. > > I will try to look into this further. > > > > Kai, > > the latest patch in the works, it's against a clean tree: > > diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c > index 44b71f3..ff35eb9 100644 > --- a/sys/amd64/amd64/pmap.c > +++ b/sys/amd64/amd64/pmap.c Andriy. I tested this latest patch of yours and until now the server did not panic any more with superpages enabled. It survived several makeworld -j8 and also copying many small files over NFS mount to local ZFS. Also "zfs scrub" did not provoke a panic. I'll notify you, should a machine check exception occur again. --Kai. -- For large values of one, one equals two, for small values of two.