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	Sun, 7 Nov 2010 18:07:11 -0500
From: Ben Gamari <bgamari.foss@gmail.com>
Subject: Re: fstat suddenly return -EINVAL [Was: Bus error on make allyesconfig, kernelbuild with HEAD]
In-Reply-To: <20101107223056.GA23871@merkur.ravnborg.org>
References: <20100729105225.GA13192@faui48a.informatik.uni-erlangen.de> <AANLkTi=cYgV69VyNZ+TKs_f-+3AJmyo_RaYS57R72j50@mail.gmail.com> <20100729121002.GC13192@faui48a.informatik.uni-erlangen.de> <20100730084353.GB5638@cr0.nay.redhat.com> <87d3qicwxn.fsf@gmail.com> <87aalmcv0p.fsf@gmail.com> <20101106162426.GA14361@merkur.ravnborg.org> <87tyjtjd7m.fsf@gmail.com> <20101107170700.GA22684@merkur.ravnborg.org> <87mxplypid.fsf@gmail.com> <20101107223056.GA23871@merkur.ravnborg.org>
Date: Sun, 07 Nov 2010 18:07:08 -0500
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To: Sam Ravnborg <sam@ravnborg.org>
Cc: =?utf-8?Q?Am=C3=A9rico?= Wang <xiyou.wangcong@gmail.com>, Christoph Egger <siccegge@cs.fau.de>, linux-kernel@vger.kernel.org, linux-kbuild <linux-kbuild@vger.kernel.org>, Michal Marek <mmarek@suse.cz>

On Sun, 7 Nov 2010 23:30:56 +0100, Sam Ravnborg <sam@ravnborg.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