Re: 2.6.23 regression: accessing invalid mmap'ed memory from gdbcauses unkillable spinning

[David Miller]

From: Nick Piggin <npiggin@xxxxxxx>
Date: Wed, 31 Oct 2007 08:41:06 +0100

> On Tue, Oct 30, 2007 at 11:56:00PM -0700, David Miller wrote:
> > From: Nick Piggin <npiggin@xxxxxxx>
> > Date: Wed, 31 Oct 2007 07:42:21 +0100
> > 
> > Anyways, my core suggestion is to add a hook here so platforms can
> > do the remote register fetch if they want.
> 
> You could possibly even do a generic "best effort" kind of thing with
> regular IPIs, that will timeout and continue if some CPUs don't handle
> them, and should be pretty easy to get working with existing smp_call_
> function stuff. Not exactly clean, but it would be better than nothing.

Without a doubt.
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