From: Andi Kleen <ak@suse.de>
To: Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH] x86_64 stack trace cleanup
Date: Fri, 24 Feb 2006 14:20:13 +0100
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On Friday 24 February 2006 14:13, Andrew Morton wrote:


> 
> > > Problem is, scrollback doesn't work after panic().  I don't know why..
> > 
> > Someone claimed it was related to the panic keyboard blinking.
> >
> 
> Strange.  It looks pretty harmless.

[just speculation, haven't examined the code in detail]

One credible theory also was that the keyboard or console driver does too much
work in workqueues, which need the scheduler and scheduling doesn't work anymore
after panic. I remember hacking around a problem with this long ago on 2.4
The hack was to just check after_panic and call the function directly.

-Andi

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