On Thu, 14 Dec 2017, Linus Torvalds wrote: > On Thu, Dec 14, 2017 at 2:36 PM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> 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
