Re: [RFC PATCH] rseq: x86: implement abort-at-ip extension

[Peter Zijlstra]

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.