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

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Message-ID: <20101109102919.GI5220@cr0.nay.redhat.com>
Date:	Tue, 9 Nov 2010 18:29:19 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Ben Gamari <bgamari.foss@...il.com>
Cc:	Sam Ravnborg <sam@...nborg.org>,
	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 Mon, Nov 08, 2010 at 03:17:16PM -0500, Ben Gamari wrote:
>On Mon, 8 Nov 2010 20:05:01 +0100, Sam Ravnborg <sam@...nborg.org> wrote:
>> > 
>> > $ make
>> >   HOSTCC  scripts/basic/fixdep
>> > file=scripts/basic/.fixdep.d
>> > fixdep: fstat failed: Invalid argument
>> 
>> But open succedd - because we see no output from that one.
>> 
>Yes, this is true.
>
>> > How are .d files supposed to be generated?
>> 
>> They are generated by kbuild.
>> See scripts/Kbuild.include:
>> 
>> If you delete the line marked "==>" then you should have .d files are a build.
>> 
>True.
>
>> > export CC=${CROSS_COMPILE}gcc
>> > export CXX=${CROSS_COMPILE}g++
>> This part is wrong. The kernel will do this for you.
>> It should not cause any harm...
>> 
>Yeah, this is for other applications.
>
>Any idea of what could be happening?
>

No idea why this only happens to those .*.d files.
A blind guess would be commit 365b1818. :-/
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