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

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Message-ID: <20111027054806.GA1377@suse.de>
Date:	Thu, 27 Oct 2011 07:48:06 +0200
From:	Greg KH <gregkh@...e.de>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc:	miche@...gle.com, linux-kernel@...r.kernel.org,
	xen-devel@...ts.xensource.com
Subject: Re: Regression: patch " hvc_console: display printk messages on
 console." causing infinite loop with 3.2-rc0 + Xen.

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:
> 
> [    2.382984] console [hvc0] enabled
> [    2.382984] console [hvc0] enabled
> [    2.382984] console [hvc0] enabled
> [    2.382984] console [hvc0] enabled
> [    2.382984] console [hvc0] enabled
> [    2.382984] console [hvc0] enabled
> .. 
> 
> (see attached file titled bad.log)
> 
> If I use Linus's latest git tree and revert your patch I get the kernel
> to bootup (see good.log file),

Ick, not good, thanks for letting us know.

Miche, want me to just revert this, or do you think you can fix it?

thanks,

greg k-h
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