[PATCH 1/5] spi: spi-mem: Add support for panic mem writes

[Mark Brown]

On Tue, Oct 13, 2026 at 01:00:50PM +0200, Paul Cercueil wrote:
> Le mardi 13 octobre 2026 à 11:42 +0100, Mark Brown a écrit :

> > Do the other CPUs know they're panicing yet, and what state is the
> > hardware in?  I'm a bit nervous about assuming panic got things into a
> > good state.

> The other CPUs are stopped, yes. At that point there's no SMP, no preemption, no
> IRQs, no time accounting.

My worry is what happens if we didn't actually manage to stop the other
CPUs - in theory we've shut everything down, but I've been burned by the
bug being IPIs breaking.  Perhaps it's just not worth worrying about.
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