linux-kernel - Re: Regression: patch " hvc_console: display printk messages on console." causing infinite loop with 3.2-rc0 + Xen.

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Date:	Wed, 2 Nov 2011 18:30:12 -0700
From:	Greg KH <gregkh@...e.de>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>, miche@...gle.com,
	linux-kernel@...r.kernel.org, xen-devel@...ts.xensource.com,
	Anton Blanchard <anton@...ba.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	virtualization@...ts.linux-foundation.org,
	ppc-dev <linuxppc-dev@...ts.ozlabs.org>,
	Amit Shah <amit.shah@...hat.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Linus <torvalds@...ux-foundation.org>
Subject: Re: Regression: patch " hvc_console: display printk messages on
 console." causing infinite loop with 3.2-rc0 + Xen.

On Wed, Nov 02, 2011 at 12:13:09PM +1100, Stephen Rothwell wrote:
> Hi Greg,
> 
> On Thu, 27 Oct 2011 07:48:06 +0200 Greg KH <gregkh@...e.de> wrote:
> >
> > On Thu, Oct 27, 2011 at 01:30:08AM -0400, Konrad Rzeszutek Wilk wrote:
> > > Hey Miche.
> > > 
> > > The git commit 361162459f62dc0826b82c9690a741a940f457f0:
> > > 
> > >     hvc_console: display printk messages on console.
> > > 
> > > is causing an infinite loop when booting Linux under Xen, as so:
> > 
> > Ick, not good, thanks for letting us know.
> 
> Indeed. I am wondering why it was put in a tree and sent to Linus without
> any Acks or even being replied to by anyone.  It appeared in the tty tree
> between Oct 14 and Oct 25 (while I was unfortunately on vacation).  If
> anyone had tried to boot this on any PowerPC server, it would have been
> immediately obvious (as it was when I booted Linus' tree last night).
> 
> And the original author expressed doubts as to his understanding of how
> it should all work anyway.
> 
> Just a little more care, please.
> 
> I would vote for reverting the original and having it resubmitted with
> corrections at some later date.

You are right, I will go do that, sorry for the problems.

greg k-h
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