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From: Andy Fleming <afleming@freescale.com>
Date: Wed, 14 Dec 2005 15:46:08 -0600
To: Johannes Berg <johannes@sipsolutions.net>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: illegal instructions / irqs disabled warning
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On Dec 14, 2005, at 08:05, Johannes Berg wrote:
>
> Does that mean __copy_from_user_inatomic isn't actually valid to  
> call in
> atomic context? Or is this only so that kernel developers that use
> powerpc see the bugs their code would have on other platforms? The  
> magic
> in get_user_asm thoroughly confuses me.
>
> [Somehow I got sidetracked. I only wanted to look at implementing
> backtrace support for oprofile...]


What platform is this on?  The copy from user stuff is a bit out of  
my area of expertise, but I've got an implementation of backtrace for  
oprofile running on 85xx.  Mostly, it's just a hacked up version of  
the ppc64 patch that was floating around.

Andy