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Date: Thu, 1 Oct 2009 11:36:10 +0100
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Ingo Molnar <mingo@elte.hu>
Cc: Greg KH <gregkh@suse.de>, Linus Torvalds <torvalds@linux-foundation.org>,
       Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org
Subject: Re: [origin tree boot crash] Re: [GIT PATCH] TTY patches for
 2.6.31-git
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> Hm, removing the serial console boot line portion still causes a 
> spontaneous reboot. Same for removing /bin/setserial and removing 
> /dev/ttyS0 and /dev/ttyS1.
> 
> That would exclude all possible uses of the codepath affected by that 
> commit, right?

Who knows what the early Red Hat user space does. Booting with
init=/bin/sh might be informative just as a double check.