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Date: Thu, 11 Aug 2011 23:05:25 +0200
From: Andi Kleen <andi@firstfloor.org>
To: Don Zickus <dzickus@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>, Alex Neronskiy <zakmagnus@chromium.org>,
        linux-kernel@vger.kernel.org, peterz@infradead.org,
        Ingo Molnar <mingo@elte.hu>, Mandeep Singh Baines <msb@chromium.org>,
        Alex Neronskiy <zakmagnus@chromium.com>
Subject: Re: [PATCH v6 2/2] Output stall data in debugfs
Message-ID: <20110811210525.GR5782@one.firstfloor.org>
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> No because the serial console driver does a touch_nmi_watchdog().  So if
> we are trying to output debug info _before_ the lockup detector goes off,
> we effectively shoot ourselves in the foot by reseting the lockup detector
> everytime we print something.  Hence we are trying to capture the data and
> output using another interface.

Well surely that's fixable in the serial driver? Maybe set some global
on that CPU to disable it.

-Andi