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Message-ID: <86802c440707190004g563ddd64g4866f5877d6bf292@mail.gmail.com>
Date:	Thu, 19 Jul 2007 00:04:51 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Andi Kleen" <ak@...e.de>
Cc:	"Vivek Goyal" <vgoyal@...ibm.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Greg KH" <gregkh@...e.de>, "Bjorn Helgaas" <bjorn.helgaas@...com>,
	"linux kernel mailing list" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3]x86_64: early_printk for early debug port support

On 7/18/07, Andi Kleen <ak@...e.de> wrote:
> On Monday 21 May 2007 07:19:18 Yinghai Lu wrote:
> > add early dbgp to early_printk.
> >
> > kernel command line:
> > earlyprintk=dbgp
> > or
> > earlyprintk=dbgp1
>
> Just checking some old patches. Was there ever an update for this one?
> What were the testing results?
>
> -Andi
>

please check the attachment. the diff to current Linus'd git.

after remove pci quirks for usb handoff, it could get boot log till
ohci try to reset the port with debug device. --- reset will fail.

Maybe Greg could continue debug it.

YH

View attachment "9xxx.diff" of type "text/x-patch" (22720 bytes)

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