linux-kernel - Re: [2.6.25-rc5-mm1] BUG: spinlock bad magic early during boot

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Message-Id: <200803171405.04808.lenb@kernel.org>
Date:	Mon, 17 Mar 2008 14:05:04 -0400
From:	Len Brown <lenb@...nel.org>
To:	Éric Piel <Eric.Piel@...mplin-utc.net>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Tilman Schmidt <tilman@...p.cc>,
	Dave Hansen <haveblue@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Thomas Renninger <trenn@...e.de>,
	Len Brown <len.brown@...el.com>,
	Christoph Hellwig <hch@...radead.org>,
	Markus Gaugusch <dsdt@...gusch.at>, linux-acpi@...r.kernel.org,
	Al Viro <viro@...iv.linux.org.uk>,
	Arjan van de Ven <arjanv@...hat.com>
Subject: Re: [2.6.25-rc5-mm1] BUG: spinlock bad magic early during boot

On Saturday 15 March 2008, Éric Piel wrote:
> 15/03/08 20:21, Linus Torvalds wrote/a écrit:
> > 
> > I've reverted the whole thing. Or rather, since there were various small 
> > fixup commits over time, and a simple revert doesn't really work, I ended 
> > up just removing the option and the code that was conditional on it - that 
> > way, if we really want to fight this out some time (after 2.6.25 is out) 
> > or some vendor wants to use a known-broken option anyway, there's a simple 
> > and fairly clean commit to revert the revert.
> > 
> > It's commit 9a9e0d685553af76cb6ae2af93cca4913e7fcd47, see 
> > 
> > 	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=9a9e0d685553af76cb6ae2af93cca4913e7fcd47
> > 
> > for details if you aren't a git person.

> It's a pity, I had just nearly finished a new approach. Instead of
> relying on populate_rootfs() and the filesystem infrastructure, the new
> approach directly finds the file in the initramfs. With
> unpack_to_rootfs(), it turned out to be rather straightforward. Attached
>  is a half-tested version of the patch (it boots and works but I haven't
> compiled without the option yet). Just in case you would like to change
> your mind ;-)

I recommend that you make a new proposal for 2.6.26
that applies on top of Linus' top-of-tree and that we
include lkml in hashing it out rather than just linux-acpi.

thanks,
-Len
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