linux-kernel - Re: xfs compat

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Message-ID: <20090831183751.GC19343@comcast.net>
Date:	Mon, 31 Aug 2009 13:37:51 -0500
From:	Tim Walberg <twalberg@...cast.net>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Michael Tokarev <mjt@....msk.ru>,
	Linux-kernel <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>, xfs@....sgi.com
Subject: Re: xfs compat_ioctl?

I still get these on 2.6.30.4 on sparc64 (32-bit userspace a la Debian etch):

sparcy:~# uname -a
Linux sparcy 2.6.30.4-sparcy #2 Sat Aug 1 21:14:46 CDT 2009 sparc64 GNU/Linux
sparcy:~# file $(which xfs_fsr)
/usr/sbin/xfs_fsr: ELF 32-bit MSB executable, SPARC32PLUS, V8+ Required, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped
sparcy:~# dmesg | grep xfs | tail -5
[62457.467755] ioctl32(xfs_fsr:18816): Unknown cmd fd(7) cmd(c0a8586d){t:'X';sz:168} arg(00028e30) on /export
[62473.400273] ioctl32(xfs_fsr:18816): Unknown cmd fd(7) cmd(c0a8586d){t:'X';sz:168} arg(00028e30) on /export
[62481.928844] ioctl32(xfs_fsr:18816): Unknown cmd fd(7) cmd(c0a8586d){t:'X';sz:168} arg(00028e30) on /export
[62486.304567] ioctl32(xfs_fsr:18816): Unknown cmd fd(7) cmd(c0a8586d){t:'X';sz:168} arg(00028e30) on /export
[62490.833736] ioctl32(xfs_fsr:18816): Unknown cmd fd(7) cmd(c0a8586d){t:'X';sz:168} arg(00028e30) on /export

Haven't tried rolling my own xfs_progs binaries yet. xfs_db also fails with
a "Bus error" immediately on startup, but that may be a completely different
issue...



				tw




On 08/31/2009 08:30 -0400, Christoph Hellwig wrote:
>>	On Mon, Aug 31, 2009 at 11:02:51AM +0400, Michael Tokarev wrote:
>>	> Hello!
>>	>
>>	> I tried to resize an xfs filesystem on 64bit 2.6.30 kernel
>>	> using 32bit userland, and that does not work, in dmesg I see:
>>	>
>>	> ioctl32(xfs_growfs:24426): Unknown cmd fd(3) cmd(400c586e){t:'X';sz:12} arg(ffa56df4) on /mnt
>>	> ioctl32(xfs_growfs:24427): Unknown cmd fd(3) cmd(400c586e){t:'X';sz:12} arg(ff991254) on /mnt
>>	>
>>	> so apparently there's no compat_ioctl layer for these ioctls.
>>	>
>>	> Are there any plans to add these? :)
>>	
>>	Are you sure you're testing 2.6.30?  The copat ioctls were added in
>>	2.6.28.
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End of included message



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