Re: [RFC] x86_64: A real proposal for iret-less return to kernel

[Jiri Kosina]

On Tue, 20 May 2014, Andy Lutomirski wrote:

> So the issue here is that we can have an NMI followed immediately by
> an MCE.  The MCE code can call force_sig

This is interesting by itself. force_sig() takes siglock spinlock. This 
really looks like a deadlock sitting there waiting to happen.

-- 
Jiri Kosina
SUSE Labs

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