linux-kernel - Re: fstat suddenly return -EINVAL [Was: Bus error on make allyesconfig, kernelbuild with HEAD]

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Message-ID: <87lj54raw3.fsf@gmail.com>
Date:	Sun, 07 Nov 2010 18:07:08 -0500
From:	Ben Gamari <bgamari.foss@...il.com>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	Américo Wang <xiyou.wangcong@...il.com>,
	Christoph Egger <siccegge@...fau.de>,
	linux-kernel@...r.kernel.org,
	linux-kbuild <linux-kbuild@...r.kernel.org>,
	Michal Marek <mmarek@...e.cz>
Subject: Re: fstat suddenly return -EINVAL [Was: Bus error on make allyesconfig, kernelbuild with HEAD]

On Sun, 7 Nov 2010 23:30:56 +0100, Sam Ravnborg <sam@...nborg.org> wrote:
> I looked briefly at the fstat implmnetation in the kernel and
> this did not give me any hints.
> I therefore changed to subject to attrack attention of more readers.
> 
Thanks!

> Can you supply us with a bit more information about your system:
> - filesystem (as fstat seems to reach filesystem specific code)
> - glibc version 
> - box (architecture + 32 or 64 bit kernel)
> - do you see other things misbehave or is this only a kernel build thing
> 
> If you have provided this info in the past I have missed it.
> 
The kernel tree resides on an ext4 partition. The machine has two Xeon
E5520 processors and runs 64-bit Ubuntu 10.04 which uses eglibc 2.11.1.
Note that the kernel is being cross-compiled for ARM under an
OpenEmbedded toolchain (have tried both gcc 4.4.4 and 4.5). This is the
only strange behavior that I know of.

Cheers,

- Ben
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