Messages in this thread | | | Date | Fri, 15 Dec 2017 10:05:23 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: Linux 4.15-rc2: Regression in resume from ACPI S3 |
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On Thu, 14 Dec 2017, Linus Torvalds wrote:
> On Thu, Dec 14, 2017 at 2:36 PM, Thomas Gleixner <tglx@linutronix.de> wrote: > > > > But, because the silly firmware comes out of suspend with all PIC lines > > unmasked for whatever reason, the PIC can observe that IRQ being raised and > > the CPU not handling it. So yes, I forgot about 7 being magic, but I still > > think it's the firmware which causes it by unmasking the PIC irqs. > > Yes, that sounds quite likely.
And just for the record I was able to figure out which interrupt comes in and goes away again. It's the only level triggered interrupt, which is the ACPI interrupt.....
Thanks,
tglx
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