[PATCH 0/1][SRU][J][K] Screen freeze after resuming from suspend (nvme0: I/O timeout)

AceLan Kao acelan.kao at canonical.com
Wed Feb 8 07:50:11 UTC 2023


From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>

BugLink: https://launchpad.net/bugs/1996048

[Impact]
The system hangs after S3 with VMD mode is on.

[Fix]
Intel provides a fix and still under discussion
https://patchwork.kernel.org/project/linux-pci/patch/20221107182735.381552-1-francisco.munoz.ruiz@linux.intel.com/

Included in v6.2-rc1
d899aa668498 PCI: vmd: Disable MSI remapping after suspend

[Test]
Verified by us and ODM.

[Where problems could occur]
The VMCONFIG_MSI_REMAP bit is missing after S3, set it back won't lead to any regression.

Nirmal Patel (1):
  PCI: vmd: Disable MSI remapping after suspend

 drivers/pci/controller/vmd.c | 5 +++++
 1 file changed, 5 insertions(+)

-- 
2.34.1




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