Re: Maybe a bug in kernel/irq/chip.c unmask_irq(), device IRQ masked unexpectedly. (re-formated the mail body, sorry)
From: Tony Lindgren
Date: Thu Oct 10 2019 - 09:51:43 EST
* Yi Zheng <goodmenzy@xxxxxxxxx> [191010 06:22]:
> My patch is canceled. I have tested that simple adjustment, the
> device IRQ masked unexpectedly. It seems that it is more easily to
> occur with that patch.
> So, the root cause is not found yet.
OK. Based on your description, it could be a missing flush of a
posted write somewhere in the gpio-omap or intc path.