Hi, * Mario Limonciello [230528 21:44]: > On 5/28/23 01:49, Salvatore Bonaccorso wrote: > > Hi Mario > > > > Nick Hastings reported in Debian in https://bugs.debian.org/1036530 > > lockups from his system after updating from a 6.0 based version to > > 6.1.y. > > > #regzbot ^introduced 24867516f06d > > > > he bisected the issue and tracked it down to: > > > > On Sun, May 28, 2023 at 10:14:51AM +0900, Nick Hastings wrote: > > > Control: tags -1 - moreinfo > > > > > > Hi, > > > > > > I repeated the git bisect, and the bad commit seems to be: > > > > > > (git)-[v6.1-rc1~206^2~4^5~3|bisect] % git bisect bad > > > 24867516f06dabedef3be7eea0ef0846b91538bc is the first bad commit > > > commit 24867516f06dabedef3be7eea0ef0846b91538bc > > > Author: Mario Limonciello > > > Date: Tue Aug 23 13:51:31 2022 -0500 > > > > > > ACPI: OSI: Remove Linux-Dell-Video _OSI string > > > This string was introduced because drivers for NVIDIA hardware > > > had bugs supporting RTD3 in the past. > > > Before proprietary NVIDIA driver started to support RTD3, Ubuntu had > > > had a mechanism for switching PRIME on and off, though it had required > > > to logout/login to make the library switch happen. > > > When the PRIME had been off, the mechanism had unloaded the NVIDIA > > > driver and put the device into D3cold, but the GPU had never come back > > > to D0 again which is why ODMs used the _OSI to expose an old _DSM > > > method to switch the power on/off. > > > That has been fixed by commit 5775b843a619 ("PCI: Restore config space > > > on runtime resume despite being unbound"). so vendors shouldn't be > > > using this string to modify ASL any more. > > > Reviewed-by: Lyude Paul > > > Signed-off-by: Mario Limonciello > > > Signed-off-by: Rafael J. Wysocki > > > > > > drivers/acpi/osi.c | 9 --------- > > > 1 file changed, 9 deletions(-) > > > > > > This machine is a Dell with an nvidia chip so it looks like this really > > > could be the commit that that is causing the problems. The description > > > of the commit also seems (to my untrained eye) to be consistent with the > > > error reported on the console when the lockup occurs: > > > > > > [ 58.729863] ACPI Error: Aborting method \_SB.PCI0.PGON due to previous error (AE_AML_LOOP_TIMEOUT) (20220331/psparse-529) > > > [ 58.729904] ACPI Error: Aborting method \_SB.PCI0.PEG0.PG00._ON due to previous error (AE_AML_LOOP_TIMEOUT) (20220331/psparse-529) > > > [ 60.083261] vfio-pci 0000:01:00.0 Unable to change power state from D3cold to D0, device inaccessible > > > > > > Hopefully this is enough information for experts to resolve this. > > > > Does this ring some bell for you? Do you need any further information > > from Nick? > > > > Regards, > > Salvatore > > Have Nick try using "pcie_port_pm=off" and see if it helps the issue. I booted into a 6.1 kernel with this option. It has been running without problems for 1.5 hours. Usually I would expect the lockup to have occurred by now. > Does this happen in the latest 6.4 RC as well? I have compiled that kernel and will boot into it after running this one with the pcie_port_pm=off for another hour or so. > I think we need to see a full dmesg and acpidump to better > characterize it. Please find attached. Let me know if there is anything else I can provide. Regards, Nick.