+linux-acpi Hi Michael, On Mon, Nov 26, 2018 at 10:53:26PM -0500, Michael S. Tsirkin wrote: > So a new thinkpad: > 01:00.0 VGA compatible controller: NVIDIA Corporation GP107GLM [Quadro P2000 Mobile] (rev a1) > > Hangs whenever I try to poke at the card. It starts happily enough with > > [ 3.971515] ACPI Warning: \_SB.PCI0.GFX0._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20181003/nsarguments-66) > [ 3.971553] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20181003/nsarguments-66) > [ 3.971721] pci 0000:01:00.0: optimus capabilities: enabled, status dynamic power, hda bios codec supported > [ 3.971726] VGA switcheroo: detected Optimus DSM method \_SB_.PCI0.PEG0.PEGP handle > [ 3.971727] nouveau: detected PR support, will not use DSM > [ 3.971745] nouveau 0000:01:00.0: enabling device (0006 -> 0007) > [ 3.971923] nouveau 0000:01:00.0: NVIDIA GP107 (137000a1) > [ 4.009875] PM: Image not found (code -22) > [ 4.135752] nouveau 0000:01:00.0: DRM: VRAM: 4096 MiB > [ 4.135753] nouveau 0000:01:00.0: DRM: GART: 536870912 MiB > [ 4.135754] nouveau 0000:01:00.0: DRM: BIT table 'A' not found > [ 4.135755] nouveau 0000:01:00.0: DRM: BIT table 'L' not found > [ 4.135756] nouveau 0000:01:00.0: DRM: TMDS table version 2.0 > [ 4.135756] nouveau 0000:01:00.0: DRM: DCB version 4.1 > [ 4.135757] nouveau 0000:01:00.0: DRM: DCB outp 00: 02800f76 04600020 > [ 4.135758] nouveau 0000:01:00.0: DRM: DCB outp 01: 02011f62 00020010 > [ 4.135759] nouveau 0000:01:00.0: DRM: DCB outp 02: 01022f46 04600010 > [ 4.135760] nouveau 0000:01:00.0: DRM: DCB outp 03: 01033f56 04600020 > [ 4.135761] nouveau 0000:01:00.0: DRM: DCB conn 00: 00020047 > [ 4.135761] nouveau 0000:01:00.0: DRM: DCB conn 01: 00010161 > [ 4.135762] nouveau 0000:01:00.0: DRM: DCB conn 02: 00001246 > [ 4.135763] nouveau 0000:01:00.0: DRM: DCB conn 03: 00002346 > [ 4.508355] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). > [ 4.508355] [drm] Driver supports precise vblank timestamp query. > [ 4.509812] [drm] Cannot find any crtc or sizes > [ 4.510144] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 2 > > > Although that type mismatch is a bit worrying. And I'm not sure what > prints PM: Image not found. That is fine, it just says it cannot find a hibernation image from swap device. I guess you have resume=... in the kernel command line. > But after a short while it gets pretty busy: > > > [ 52.917009] No Local Variables are initialized for Method [NVPO] > [ 52.917011] No Arguments are initialized for method [NVPO] > [ 52.917012] ACPI Error: Method parse/execution failed \_SB.PCI0.PEG0.PEGP.NVPO, AE_AML_LOOP_TIMEOUT (20181003/psparse-516) > [ 52.917063] ACPI Error: Method parse/execution failed \_SB.PCI0.PGON, AE_AML_LOOP_TIMEOUT (20181003/psparse-516) > [ 52.917084] ACPI Error: Method parse/execution failed \_SB.PCI0.PEG0.PG00._ON, AE_AML_LOOP_TIMEOUT (20181003/psparse-516) > [ 52.917108] acpi device:00: Failed to change power state to D0 Here it seems to fail to turn on the power resource for the device. > [ 52.969287] video LNXVIDEO:00: Cannot transition to power state D0 for parent in (unknown) > [ 52.969289] pci_raw_set_power_state: 2 callbacks suppressed > [ 52.969291] nouveau 0000:01:00.0: Refused to change power state, currently in D3 > [ 53.029514] video LNXVIDEO:00: Cannot transition to power state D0 for parent in (unknown) > [ 53.041027] nouveau 0000:01:00.0: Refused to change power state, currently in D3 > [ 53.041035] video LNXVIDEO:00: Cannot transition to power state D0 for parent in (unknown) > [ 53.053008] nouveau 0000:01:00.0: Refused to change power state, currently in D3 > > > And then kernel proceeds to throw up errors at random places, e.g. > > [ 67.021892] cfg80211: failed to load regulatory.db > [ 67.021895] cfg80211: failed to load regulatory.db > [ 67.021897] cfg80211: failed to load regulatory.db > [ 67.021900] cfg80211: failed to load regulatory.db > [ 67.021927] cfg80211: failed to load regulatory.db > [ 67.021928] cfg80211: failed to load regulatory.db > [ 67.021932] cfg80211: failed to load regulatory.db > [ 67.021934] cfg80211: failed to load regulatory.db > [ 67.024463] cfg80211: failed to load regulatory.db > [ 99.980625] iwlwifi 0000:00:14.3: Error sending STATISTICS_CMD: time out after 2000ms. > > followed by soft lockups and sometimes hard lockups in places > like attempts to walk skb lists. > > Adding runpm=0 does away with this issue. > > The specific test was with noaccel=1 - it does not seem to change > things for me. > > I poked at the ACPI method NVPO and yes it does actually > seem to execute a while loop waiting for some register > to become 0. Which I guess never happens? Because card > is in a low power state and so reads return ffffffff maybe? Yes, it could be the case. > X isn't happy even with runpm=0 but that might be a different > issue - I thought runpm=0 might be an easier place to start debugging > things given there are logs of the failure. > > Using 4.20.0-rc3 right now. > > Userspace bits are from fedora 29: > xorg-x11-drv-nouveau-1.0.15-6.fc29.x86_64 > > firmware is pretty recent: > linux-firmware-20181008-88.gitc6b6265d.fc29.noarch > > More hints for debugging would be appreciated. > If anyone wants me to play with a different kernel tree, > let me know. Can you share full dmesg and acpidump of the system? I would like to check the power resource methods.
