Re: [PATCH] Revert "x86: Disable IST stacks for debug/int 3/stack fault for PREEMPT_RT"
From: Andi Kleen <hidden>
Date: 2014-01-04 18:18:12
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On Fri, Jan 03, 2014 at 02:55:48PM +0100, Sebastian Andrzej Siewior wrote:
where do I start. Let me explain what is going on here. The code sequence
Yes the IST stacks are needed for correctness, even in more cases than the example below. You cannot just disable them, just because you don't like them. -Andi