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Date: Mon, 30 Jun 2008 20:33:37 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Randy Dunlap <randy.dunlap@oracle.com>
Cc: linux-next@vger.kernel.org, lkml <linux-kernel@vger.kernel.org>,
       mingo <mingo@redhat.com>, tglx <tglx@linutronix.de>,
       hpa <hpa@zytor.com>, akpm <akpm@linux-foundation.org>,
       Jens Axboe <jens.axboe@oracle.com>
Subject: Re: [PATCH -next] fork and exit: need to include iocontext.h
Message-ID: <20080630183337.GD32211@elte.hu>
References: <20080630105458.7c95e195.randy.dunlap@oracle.com> <20080630180506.GC23739@elte.hu> <20080630112222.f103e477.randy.dunlap@oracle.com>
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* Randy Dunlap <randy.dunlap@oracle.com> wrote:

> On Mon, 30 Jun 2008 20:05:06 +0200 Ingo Molnar wrote:
> 
> > 
> > * Randy Dunlap <randy.dunlap@oracle.com> wrote:
> > 
> > > From: Randy Dunlap <randy.dunlap@oracle.com>
> > > 
> > > Fix fork and exit build errors: they need to include iocontext.h:
> > > 
> > > linux-next-20080630/kernel/fork.c: In function 'copy_process':
> > > linux-next-20080630/kernel/fork.c:1237: error: implicit declaration of function 'put_io_context'
> > > linux-next-20080630/kernel/exit.c: In function 'do_exit':
> > > linux-next-20080630/kernel/exit.c:992: error: implicit declaration of function 'exit_io_context'
> > 
> > i havent seen this one - do you know by chance which commit triggers it?
> 
> 
> Sorry, no idea which commit.
> 
> In 50 randconfigs today (next-20080630), I saw this one 12 times.

btw., block.git would be one of my first guesses - Jens Cc:-ed.

normally there's an easy way to find out the source commit of build 
failures. Try something like:

 git-bisect reset
 git-bisect start
 git-bisect good v2.6.26-rc8
 git-bisect bad linux-next/master
 git-bisect run make kernel/fork.o

... this should lead you to the commit that broke the build 
automatically. (as long as everyone keeps make oldconfig compatibility)

	Ingo