Re: [PATCH] arm64: irq: exclude the softirq stack switch from KCOV

[Will Deacon]

On Sat, 26 Sep 2026 21:13:25 +0200, Karl Mehltretter wrote:
> On IRQ exit, __irq_exit_rcu() drops HARDIRQ_OFFSET before calling
> invoke_softirq(). The arm64 do_softirq_own_stack() wrapper and its
> ____do_softirq() trampoline run before __do_softirq() establishes
> softirq context, so KCOV records their PCs in the interrupted task's
> coverage buffer. They also run outside softirq accounting when
> local_bh_enable() reaches do_softirq().
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] arm64: irq: exclude the softirq stack switch from KCOV
      https://git.kernel.org/arm64/c/a9cd14bfb0c1

Cheers,
-- 
Will

https://fixes.arm64.dev
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