linux-kernel - Re: 2.6.21-rc4-mm1 + 3 hot-fixes -- WARNING: could not find versions for .tmp

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Message-ID: <20070323161903.GA7485@uranus.ravnborg.org>
Date:	Fri, 23 Mar 2007 17:19:03 +0100
From:	Sam Ravnborg <sam@...nborg.org>
To:	Yasunori Goto <y-goto@...fujitsu.com>
Cc:	Miles Lane <miles.lane@...il.com>, Andrew Morton <akpm@...l.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.21-rc4-mm1 + 3 hot-fixes -- WARNING: could not find versions for .tmp_versions/built-in.mod

On Fri, Mar 23, 2007 at 09:54:29PM +0900, Yasunori Goto wrote:
> Hello.
> 
> > > WARNING: mm/built-in.o - Section mismatch: reference to
> > > .init.text:__alloc_bootmem_node from .text between 'sparse_init' (at
> > > offset 0x15c8f) and '__section_nr'
> > I took a look at this one.
> > You have SPARSEMEM enabled in your config.
> > And then I see that in sparse.c we call alloc_bootmem_node()
> > from a function I thought should be marked __devinit (it
> > is used by memory_hotplug.c).
> > But I am not familiar enough to judge if __alloc_bootmen_node
> > are marked correct with __init or __devinit (to say
> > this is used in the HOTPLUG case) is more correct.
> > Anyone?
> > 
> > > WARNING: mm/built-in.o - Section mismatch: reference to
> > > .init.text:__alloc_bootmem_node from .text between 'sparse_init' (at
> > > offset 0x15d02) and '__section_nr'
> > Same as above....
> 
> Memory hotplug code has __meminit for its purpose.
> But, I suspect that many other places of memory hotplug code may have
> same issue. I will chase them.
Thanks!

> 
> BTW, does -mm code checks more strict than stock kernel? I can't see
> these warnings in 2.6.21-rc4.....
Yes it does. The included kbuild changes enables proper check of
symbols in vmlinux.

	Sam
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