[PATCH 0/1][SRU][OEM-5.17][OEM-6.0] Screen freeze after resuming from suspend (nvme0: I/O timeout)

AceLan Kao acelan.kao at canonical.com
Wed Nov 9 10:17:09 UTC 2022


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/

The patch is not finalized, so submit SRU to OEM kernels only, and will
submit to other series kernels once the patch is accepted by upstream.

[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):
  UBUNTU: SAUCE: PCI: vmd: Disable MSI remapping after suspend

 drivers/pci/controller/vmd.c | 3 +++
 1 file changed, 3 insertions(+)

-- 
2.34.1




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