Re: RCU question

[Manfred Spraul]

Zwane Mwaikambo wrote:

> "Intel processors don't suppress SMI or NMI after an STI instruction. 
> Since the INTR suppresion is not preserved across an SMI or NMI handler, 
> this may result in an INTR being serviced after the STI, which constitutes 
> a violation of the INTR suppresion.
>  
Interesting find.
It means that our NMI irq return path should check if it points to a hlt 
instruction and if yes, then increase the saved EIP by one before doing 
the iretd, right?

--
   Manfred
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