From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Jared Hulbert" <jaredeh@gmail.com>
Subject: Re: [PATCH 00/10] AXFS: Advanced XIP filesystem
Date: Fri, 22 Aug 2008 09:51:01 -0700
Message-ID: <6934efce0808220951i5a2cd6f9t70f9c522eae6f1d6@mail.gmail.com>
References: <48AD00C4.6060302@gmail.com>
	 <Pine.LNX.4.64.0808221650500.17105@vixen.sonytel.be>
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit
Return-path: <linux-embedded-owner@vger.kernel.org>
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=gamma;
        h=domainkey-signature:received:received:message-id:date:from:to
         :subject:cc:in-reply-to:mime-version:content-type
         :content-transfer-encoding:content-disposition:references;
        bh=V7cnkUtF0im4j76Ksxk4RIq1ZsVunRcuN7VZHi1v7KE=;
        b=uNd3hRwNXi/+xoPYJN76r/zJm1lR4nl427DG16uNq7TkSiJcCKopK1IG//+r8Pb3l2
         lFxpWRuQpKNmZgE54nyJ8xK7JX1w0+BDZG1U3x0q03bd+Df6RB2Lp+rjOjMsQd58aIDM
         5JdfZ6vllB7SKbU7wRbQAP/I1wg9f2lDdFpjg=
In-Reply-To: <Pine.LNX.4.64.0808221650500.17105@vixen.sonytel.be>
Content-Disposition: inline
Sender: linux-embedded-owner@vger.kernel.org
List-ID: <linux-embedded.vger.kernel.org>
Content-Type: text/plain; charset="us-ascii"
To: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Linux-kernel@vger.kernel.org, linux-embedded@vger.kernel.org, linux-mtd <linux-mtd@lists.infradead.org>, =?UTF-8?Q?J=C3=B6rn_Engel?= <joern@logfs.org>, tim.bird@am.sony.com, cotte@de.ibm.com, nickpiggin@yahoo.com.au

> The version in SVN seems to be slightly older than the one you submitted?

Oops.  Okay I must have neglected to sync at the very end.  Thanks.

I forgot, there is also a git repo at

git://git.infradead.org/users/jehulber/axfs.git

> Which platform(s) do you use for testing?

ARM, x86

> I gave AxFS a try on PS3 (ppc64, always use big-endian 64-bit for testing new
> code ;-).

Smart.  Hmmm, If only I had a PS3....

> When mounting the image, I got the crash below:
>
> | attempt to access beyond end of device
> | loop0: rw=0, want=4920, limit=4912
> | [c00000000c1e34c0] [d000000000037974] .axfs_copy_block+0x8c/0x144 [axfs] (unreliable)
> | [c00000000c1e3580] [d000000000035f20] .axfs_copy_metadata+0x154/0x1cc [axfs]
> | [c00000000c1e3630] [d000000000035fd8] .axfs_verify_eofs_magic+0x40/0xa0 [axfs]
> | [c00000000c1e36c0] [d000000000036678] .axfs_fill_super+0x3c0/0x7c8 [axfs]
> | [c00000000c1e3780] [c0000000000d1670] .get_sb_bdev+0x154/0x1ec
> | [c00000000c1e3860] [d000000000037a94] .axfs_get_sb_bdev+0x34/0x6c [axfs]
> | [c00000000c1e38f0] [d000000000035d0c] .axfs_get_sb+0x320/0x394 [axfs]
> | [c00000000c1e3a00] [c0000000000d1318] .vfs_kern_mount+0x88/0x108
> | [c00000000c1e3ab0] [c0000000000d143c] .do_kern_mount+0x68/0x148
> | [c00000000c1e3b60] [c0000000000f0a10] .do_new_mount+0x90/0xf4
> | [c00000000c1e3c10] [c0000000000f0c5c] .do_mount+0x1e8/0x23c
> | [c00000000c1e3d60] [c000000000114778] .compat_sys_mount+0x21c/0x2ac
> | [c00000000c1e3e30] [c0000000000074dc] syscall_exit+0x0/0x40

Yeah we've had this problem before.  I'm not so sure this is an endian
bug, though it is likely.

> When mounting (also on PS3) an image created on ia32, I get a different crash:
>
> | axfs: wrong magic
>
> So I guess some parts are not yet 64-bit or endian clean.

Can you run mkfs.axfs on the same trivial directory on both ia32 and
PPC64 and then get me the resulting images?