From owner-freebsd-current@FreeBSD.ORG Thu Jan 21 17:52:39 2010 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 776D4106568B for ; Thu, 21 Jan 2010 17:52:39 +0000 (UTC) (envelope-from naylor.b.david@gmail.com) Received: from mail-ew0-f211.google.com (mail-ew0-f211.google.com [209.85.219.211]) by mx1.freebsd.org (Postfix) with ESMTP id F03568FC17 for ; Thu, 21 Jan 2010 17:52:38 +0000 (UTC) Received: by ewy3 with SMTP id 3so256931ewy.33 for ; Thu, 21 Jan 2010 09:52:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:from:organization:to:subject :date:user-agent:cc:references:in-reply-to:mime-version:content-type :content-transfer-encoding:message-id; bh=CIdeBMmdwAgcZ2dNlI1IEdPpP4Rwevzic6CLJmnNmQ8=; b=ETFcSjlW6jXl2NUx2t/uGGfcdALL1MR1emP/36ZbzmdV8rqw91FSZfoQBU0j4UKu6Z uhRHaSxxv7PuJ5V5oE7F/WwTQokji//kJOVjMkkmFoeXr+VTGkSUnohzdgBtDQyt8Mwd CTdhqVyp26sy6vQr6hJiAOeYh+b4/oG/+3b70= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:organization:to:subject:date:user-agent:cc:references :in-reply-to:mime-version:content-type:content-transfer-encoding :message-id; b=x8Q3gRYfy71OfrXS3Ka/m8H7qm7iKbLS2Oc3RFZdV7HJRVFZDRGLjgAKFSjO1eRHqn 3YZFK9hkq245bYRPWJaJQQKF/tSiTEqjqpNyJZKdHwLukDsjThO29/PAfF4kbM0CWcDk gPX48yvFA0dHkLvoJBhNVLP+rONrRJcxzr4fs= Received: by 10.216.90.137 with SMTP id e9mr681450wef.141.1264096357753; Thu, 21 Jan 2010 09:52:37 -0800 (PST) Received: from dragon.dg ([41.216.197.17]) by mx.google.com with ESMTPS id 5sm1212718eyf.4.2010.01.21.09.52.18 (version=SSLv3 cipher=RC4-MD5); Thu, 21 Jan 2010 09:52:35 -0800 (PST) From: David Naylor Organization: Private To: Andriy Gapon Date: Thu, 21 Jan 2010 19:52:16 +0200 User-Agent: KMail/1.12.3 (FreeBSD/8.0-STABLE; KDE/4.3.3; amd64; ; ) References: <201001201543.15818.naylor.b.david@gmail.com> <201001201834.48466.naylor.b.david@gmail.com> <4B573A8B.8080306@icyb.net.ua> In-Reply-To: <4B573A8B.8080306@icyb.net.ua> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart9632437.lP9HUY7ufi"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201001211952.20202.naylor.b.david@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: stacked unionfs freeze and crash FreeBSD 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, 21 Jan 2010 17:52:39 -0000 --nextPart9632437.lP9HUY7ufi Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable On Wednesday 20 January 2010 19:16:59 Andriy Gapon wrote: > on 20/01/2010 18:34 David Naylor said the following: > > Here it is. If anyone ones the full core.txt just shout. > > > > #0 doadump () at pcpu.h:223 > > 223 pcpu.h: No such file or directory. > > in pcpu.h > > (kgdb) #0 doadump () at pcpu.h:223 > > #1 0xffffffff80589ba9 in boot (howto=3D260) > > at /usr/src/sys/kern/kern_shutdown.c:416 > > #2 0xffffffff80589fdc in panic (fmt=3D0xffffffff8098bd81 "double fault= ") > > at /usr/src/sys/kern/kern_shutdown.c:579 > > #3 0xffffffff8086e546 in dblfault_handler (frame=3DVariable "frame" is= not > > available.) > > at /usr/src/sys/amd64/amd64/trap.c:884 > > #4 0xffffffff808557fc in Xdblfault () > > at /usr/src/sys/amd64/amd64/exception.S:278 > > #5 0xffffffff81e464c1 in unionfs_statfs (mp=3DVariable "mp" is not > > available.) at > > /usr/src/sys/modules/unionfs/../../fs/unionfs/union_vfsops.c:428 Previo= us > > frame inner to this frame (corrupt stack?) > > (kgdb) >=20 > Double-fault could indicate stack overflow. Thanks, I bumped KSTACK_PAGES to 32 (just to be on the safe side) and it is= =20 working fairly well now. Only crash I have had since was related to tmpfs.= =20 So far I have successfully build a port with 59 stacked unionfs (1 rw, 58 r= o). =20 Regards, David --nextPart9632437.lP9HUY7ufi Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.13 (FreeBSD) iEYEABECAAYFAktYlFQACgkQUaaFgP9pFrLkZgCeM6qrD+tZyw3mFRmc69eJfvj3 3F8An1bkTYMEKyt2qk34oKgtood2fTvD =+8eS -----END PGP SIGNATURE----- --nextPart9632437.lP9HUY7ufi--