ACK: [PATCH v2 0/2][SRU][J][K] System freeze after resuming from suspend due to PCI ASPM settings
kai.heng.feng at canonical.com
Thu Aug 25 03:52:36 UTC 2022
On Thu, Aug 25, 2022 at 9:56 AM AceLan Kao <acelan.kao at canonical.com> wrote:
> From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>
> BugLink: https://bugs.launchpad.net/bugs/1980829
> While doing some tests such as suspend/resume or CPU stress tests the system would hang.
> The 2 commits fix the issue, but still not get accepted yet.
> So, I created a DMI quirk to make the patches only affects on listed platforms.
> Verified on the failed machines and ODM also verified on their side.
> [Where problems could occur]
> The patches only affects on the listed platforms, and won't affect other platforms.
> Chia-Lin Kao (AceLan) (1):
> UBUNTU: SAUCE: whitelist platforms that needs save/restore ASPM L1SS
> for suspend/resume
> Vidya Sagar (1):
> UBUNTU: SAUCE: PCI/ASPM: Save/restore L1SS Capability for
Acked-by: Kai-Heng Feng <kai.heng.feng at canonical.com>
> drivers/pci/pci.c | 30 +++++++++++++++++++++++++++-
> drivers/pci/pci.h | 4 ++++
> drivers/pci/pcie/aspm.c | 44 +++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 77 insertions(+), 1 deletion(-)
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