linux-kernel - Re: 2.6.39-rc5-git2 boot crashs

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Message-ID: <BANLkTikFqF1vzMq3L9zDB=MDnCOFYp+XEQ@mail.gmail.com>
Date:	Mon, 2 May 2011 16:24:35 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	werner <w.landgraf@...ru>
Cc:	jaxboe@...ionio.com, tj@...nel.org, linux-kernel@...r.kernel.org,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: 2.6.39-rc5-git2 boot crashs

On Mon, May 2, 2011 at 3:28 PM, werner <w.landgraf@...ru> wrote:
> Also, with this configuration, sync dont work, the terminal waits endless.
>  And if I type in 'reboot', then after the message it would go to reboot,
> nothing happens (it's possible that for reboot, sync is called).

Yes, sync is called for reboot.

However, that should be fairly easy to figure out. Well, perhaps not
"figure out", but at least get more details of where it is hanging. A
simple

   echo w > /proc/sysrq-trigger

should give you a nice trace in the dmesg showing where 'sync' is
hanging, and that would hopefully give us a lot more clues.

                                Linus
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