On Sat, Jan 04, 2020 at 11:30:56AM -0500, Bryan Steele wrote: > On Sat, Jan 04, 2020 at 05:07:04PM +0100, Mark Kettenis wrote: > > > Date: Sat, 4 Jan 2020 10:52:24 -0500 > > > From: Bryan Steele <[email protected]> > > > > > > I noticed an unusually high interrupt rate for amdgpio0 on my Huawei > > > Matebook D laptop. I'm suspecting this may be partially why it apmd -A > > > has been struggling, as the CPU is constantly busy so it never has a > > > chance to scale down. > > > > > > Any ideas? > > > > Please send acpidump output (all files in /var/db/acpi). > > > > Try to figure out which GPIO pin is causing the interrupt. That may > > be tricky since the interrupt fires again and again, so if you add a > > printf in amdgpio_intr() your machine will become unusable. Maybe > > just print the pin every 10000 times: > > > > static count = 0; > > > > .... > > > > if ((count++ % 10000) == 0) > > printf("st %llx\n", status) > > > > Cheers, > > > > Mark > > Thanks, for some reason it vanished with on a cold boot. I'm not sure > what it was that caused it. In case it helps, sending the acpidump > anyway. > > If I can figure out what caused it, I'll try your other suggestion. > > Sigh.. :-)
Aha! I must of accidentally bumped the Touchscreen at some point, doing that causes the amdgpio0 rate to spike. I had sent a diff to add AMD controller support to dwiic(4) months ago, I could never get interrupts to work, only polling mode. Perhaps this issue explains some of that. I don't have this diff in my tree at the moment, had to restore from backup. Managed to login and type shutdown, lol. .. st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 syncing disks...st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008 st 1f00000000000008
