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From: Ingo Molnar <mingo@elte.hu>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Peter Zijlstra <peterz@infradead.org>,
	linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
	Fenghua Yu <fenghua.yu@intel.com>, Michal Marek <mmarek@suse.cz>
Subject: [kbuild] Re: linux-next: build failure after merge of the tip tree
Date: Thu, 17 Feb 2011 13:43:04 +0100
Message-ID: <20110217124304.GA27504@elte.hu> (raw)
In-Reply-To: <20110217144743.2db26b27.sfr@canb.auug.org.au>


* Stephen Rothwell <sfr@canb.auug.org.au> wrote:

> Hi all,
> 
> On Mon, 31 Jan 2011 15:42:59 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> >
> > After merging the tip tree, today's linux-next build (x86_64 allmodconfig)
> > failed like this:
> > 
> > x86_64-linux-gcc: arch/x86/lib/memmove_64.c: No such file or directory
> > 
> > Caused by commit 9599ec0471deae24044241e2173090d2cbc0e899 ("x86-64, mem:
> > Convert memmove() to assembly file and fix return value bug") interacting
> > with our build system.
> > 
> > After removing arch/x86/lib/.memmove_64.o.cmd (left over from the build
> > before merging the tip tree) from my object tree, it built correctly.
> 
> I am still getting this (of course).

You reported this as a -tip build failure - but it appears to be some sort of kbuild 
bug/artifact, right? There was a leftover .memmove_64.o.cmd file from an old tree.

When jumping between kernel versions via git checkout a 'make mrproper' is generally 
needed. In most cases 'make' will figure things out but it's not always guaranteed.

So for example there are version transitions where a stale include/asm links could 
cause build problems.

Thanks,

	Ingo

  reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-31  4:42 Stephen Rothwell
2011-02-17  3:47 ` Stephen Rothwell
2011-02-17 12:43   ` Ingo Molnar [this message]
2011-02-17 12:45     ` [kbuild] " Peter Zijlstra
2011-02-17 13:18   ` Michal Marek
2011-02-17 15:02     ` Michal Marek
2011-02-17 17:11       ` Ingo Molnar
2011-02-17 22:47       ` Stephen Rothwell
2011-02-18  3:54         ` Stephen Rothwell

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