Re: Spinlock debug, was Re: [PATCH RFC] m68k: skip kernel premption if interrupts were disabled

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Hi Finn,

Am 28.03.2024 um 15:48 schrieb Finn Thain:
Spinlock recursion in scheduler_tick() doesn't look possible from
reentering scheduler_tick() through code in its call path, so the
mechanism there would be different.

We did rule out the VIA timer interrupt (or MFP timer A interrupt)
getting reentered, right?


I never added an assertion to prove that because I don't have a way to
reproduce the "spinlock recursion" BUG reported by Guenter.

Right. I can reproduce the bug in ARAnyM, so I'll check that the timer interrupt isn't reentered there. Doesn't quite amount to the same thing though.

Cheers,

	Michael




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