From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sog-mx-2.v43.ch3.sourceforge.com ([172.29.43.192] helo=mx.sourceforge.net) by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.69) (envelope-from ) id 1P7ler-0003WC-Qs for user-mode-linux-devel@lists.sourceforge.net; Mon, 18 Oct 2010 09:05:29 +0000 Received: from mailout-de.gmx.net ([213.165.64.23] helo=mail.gmx.net) by sog-mx-2.v43.ch3.sourceforge.com with smtp (Exim 4.69) id 1P7leq-0007vq-Du for user-mode-linux-devel@lists.sourceforge.net; Mon, 18 Oct 2010 09:05:29 +0000 From: Toralf =?iso-8859-1?q?F=F6rster?= Date: Mon, 18 Oct 2010 11:05:16 +0200 References: <201010131328.06465.toralf.foerster@gmx.de> <201010171555.40453.toralf.foerster@gmx.de> <20101017201837.GA16458@lst.de> In-Reply-To: <20101017201837.GA16458@lst.de> MIME-Version: 1.0 Message-Id: <201010181105.17077.toralf.foerster@gmx.de> Subject: Re: [uml-devel] Fwd: Re: UML kernel crash of v2.6.36-rcX kernel List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net To: Christoph Hellwig Cc: Richard Weinberger , linux-kernel@vger.kernel.org, user-mode-linux-devel@lists.sourceforge.net, Al Viro Well, in addition to my last mail the following patch isn't a fix, but it = might point to the culprit. If I apply this patch against latest tree, then the crash doesn't occur : diff --git a/include/linux/statfs.h b/include/linux/statfs.h index 0166d32..e336e70 100644 --- a/include/linux/statfs.h +++ b/include/linux/statfs.h @@ -15,8 +15,8 @@ struct kstatfs { __kernel_fsid_t f_fsid; long f_namelen; long f_frsize; - long f_flags; long f_spare[4]; + long f_flags; }; Christoph Hellwig wrote at 22:18:37 > On Sun, Oct 17, 2010 at 03:55:39PM +0200, Toralf F?rster wrote: > > I bisected it again w/ a fixed test script, got the same bad commit > > script and double checked, that this commit is really the culprit which > > crashes a user mode linux kernel at my 32bix x86 stable Gentoo running > > 2.6.35.6 vanilla kernel as host system and 2/ gcc version 4.4.3 (Gentoo > > 4.4.3-r2 p1.2) and glibc-2.11.2-r1 in the tool chain. > = > I really can't see any relation to the patch. Can you try the some > things in the following order, please: > = > (1) git-revert 365b18189789bfa1acd9939e6312b8a4b4577b28 on current > Linus tree and see it it works. > If it works try the next, else the bisect must have been a weird > conicidence and I can't really help more. > (2) re-apply only the changes to include/asm-generic/statfs.h from > 365b18189789bfa1acd9939e6312b8a4b4577b28 and see if that still > boots. > (3) re-apply the arch/mips/include/asm/statfs.h and > arch/s390/include/asm/statfs.h changes and see if it still boots > (4) re-apply the include/linux/statfs.h changes and see if it still > boots > (5) re-apply the fs/statfs.c changes, and by now it really shouldn't > boot anymore > (6) verify the code really is the same again as in current Linus' tree -- = MfG/Kind regards Toralf F=F6rster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 ---------------------------------------------------------------------------= --- Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly = Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel