linux-kernel - Re: [GIT PULL] Squashfs fixes for 2.6.29?

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Message-Id: <200903102102.50584.s.L-H@gmx.de>
Date:	Tue, 10 Mar 2009 21:02:48 +0100
From:	Stefan Lippers-Hollmann <s.L-H@....de>
To:	Phillip Lougher <phillip@...gher.demon.co.uk>
Cc:	Linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] Squashfs fixes for 2.6.29?

Hi

On Dienstag, 10. März 2009, Phillip Lougher wrote:
> Stefan Lippers-Hollmann wrote:
> 
> > 
> > This patch seems to break squashfs for me on i386 and amd64. 
> > 
> > Test environment is a squashed filesystem image (live CD image, but also 
> > tested manually with a loop mounted iso9660 and loop mounted squashfs; 
> > kernel 2.6.29-rc7-git2). The squashfs image has been created with 
> > squashfs-tools CVS[1] as of today (latest commit 2009-03-03).
> > 
> 
> Hi,
> 
> Can you send me a filesystem (or link to one) which exhibits this?  Zlib 
> is obviously showing unexpected behaviour...

http://sidux.com/slh/squashfs/sidux-snapshot-minimal-i386-200903101824.iso [104 MB]

MD5:
03475b9793134f48306fe2ba7f26ce7c *sidux-snapshot-minimal-i386-200903101824.iso

SHA256:
6ff9ec65102af8e2277a0ec30e8db13be2313ef64c9a3a3b5febaafab37cf00f *sidux-snapshot-minimal-i386-200903101824.iso

The squashfs image is stored inside the ISO9660 container as 
"sidux/sidux.686", it is bootable and the installed kernel (2.6.29-rc7-git3
+ aufs2, it's required for the live system, but I have checked that it is 
also reproducable with plain linux-2.6.git and without any patches, outside
of a live environment) exposes this problem.

Sources for all software installed inside the squashfs image is available 
at:
	http://sidux.com/slh/squashfs/sidux-snapshot-minimal-i386-200903101824-source/

The (Debian-) packaged kernel source as:
	dget http://sidux.com/slh/squashfs/sidux-snapshot-minimal-i386-200903101824-source/linux-sidux-2.6_2.6.29~rc7-1~git3.slh.0.dsc [67 MB]
and as plain tarball with all patches pre-applied:
	http://sidux.com/slh/squashfs/linux-source-sidux-2.6.29-rc7.tar.bz2 [51 MB]

which consists of the following sources/ patches:
	http://eu.kernel.org/pub/linux/kernel/v2.6/linux-2.6.28.tar.bz2 [64 MB]
	http://eu.kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.29-rc7.bz2 [12 MB]
	http://eu.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.29-rc7-git3.bz2 [60 KB]

and required for the live CD, but reproducable without these:
	http://svn.berlios.de/svnroot/repos/fullstory/linux-sidux-2.6/trunk/debian/patches/debian/version.patch [4 KB]
	http://svn.berlios.de/svnroot/repos/fullstory/linux-sidux-2.6/trunk/debian/patches/debian/kernelvariables.patch [4 KB]
	http://svn.berlios.de/svnroot/repos/fullstory/linux-sidux-2.6/trunk/debian/patches/debian/doc-build-parallel.patch [4 KB]
	http://svn.berlios.de/svnroot/repos/fullstory/linux-sidux-2.6/trunk/debian/patches/debian/scripts-kconfig-reportoldconfig.patch [12 KB]
	http://svn.berlios.de/svnroot/repos/fullstory/linux-sidux-2.6/trunk/debian/patches/features/aufs2-20090309.diff [632 KB]

used Kernel config:
	http://sidux.com/slh/squashfs/config-2.6.29-rc7-sidux-686 [96 KB]

> Thanks
> 
> Phillip

Thank you a lot for your efforts, I'm now going to test Geert 
Uytterhoeven's proposed patch and will report back.

Regards
	Stefan Lippers-Hollmann
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