linux-kernel - Re: 2.6.36-rc3 - Unable to build: "Error: input truncated"

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Date:	Mon, 13 Sep 2010 15:01:37 +1000
From:	Nigel Cunningham <nigel@...onice.net>
To:	Randy Dunlap <randy.dunlap@...cle.com>
CC:	"Rafael J. Wysocki" <rjw@...k.pl>,
	LKML <linux-kernel@...r.kernel.org>, linux-kbuild@...r.kernel.org
Subject: Re: 2.6.36-rc3 - Unable to build: "Error: input truncated"

Hi.

On 13/09/10 13:11, Randy Dunlap wrote:
> On Mon, 13 Sep 2010 09:07:45 +1000 Nigel Cunningham wrote:
>
>> Hi.
>>
>> On 13/09/10 03:34, Rafael J. Wysocki wrote:
>>> On Sunday, September 12, 2010, Nigel Cunningham wrote:
>>>> Hi all.
>>>>
>>>> I'm unable to compile the latest kernel and git bisect isn't helping:
>>>
>>> Did you try to save .config, run "make distclean" and restore .config?
>>
>> I hadn't tried that, but had done git reset --hard and make clean
>> menuconfig bzImage. Trying distclean doesn't help, I'm afraid. Perhaps I
>> should attach my .config. I'm running a 32 bit kernel/distro on a 64 bit
>> machine if that makes any difference.
>
>
> Try to strace scripts/mod/mk_elfconfig to see why it is producing
> that error message:
>
>     scripts/mod/mk_elfconfig<  scripts/mod/empty.o>  scripts/mod/elfconfig.h
> Error: input truncated
>
> I guess that the empty.o file is not in the expected format.

Yeah. It's zero bytes long.

> Who owns that stuff, anyway?

I figured the kbuild guys did, which is why I cc'd them.

> You should probably post the empty.o file so that interested parties can
> try to debug the problem.
>
> I built the kernel just fine with the .config file that you posted.

Okay. So it's probably something specific to Ubuntu Lucid then. I'll see 
if I can find the time to do a bisection by hand.

Nigel
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