Re: [PATCH v6 0/6] panic: fix panic_force_cpu= redirect races and NMI bypass

[Andrew Morton]

On Tue, 18 Aug 2026 16:38:00 +0000 Bradley Morgan <include@xxxxxxxxx> wrote:

> The panic_force_cpu= parameter redirects a panic to a specific CPU so
> the crash kernel runs there. The redirect code in panic_try_force_cpu()
> had two races and an NMI bypass, all found by Sashiko. This series
> closes them and kills one more hack that the rework turned up.

Thanks.  Sashiko had more to say:
	https://sashiko.dev/#/patchset/20260818163806.17460-1-include@xxxxxxxxx

In the first one it suggests va_copy(), but perhaps this would be
better addressed with va_end/va_start.