Re: [RFC PATCH] rseq: x86: implement abort-at-ip extension
From: Peter Zijlstra <peterz@infradead.org>
Date: 2022-01-12 15:38:43
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On Wed, Jan 12, 2022 at 04:16:36PM +0100, Florian Weimer wrote:
You could perhaps push a signal frame onto the stack. It's going to be expensive, but it's already in the context switch path, so maybe it does not matter.
Please no! Signals are a trainwreck that need change (see the whole AVX-512 / AMX saga), we shouldn't use more of that just cause.