ACK: [PATCH 0/2][SRU][OEM-B]System hangs after play video from thunderbolt HDD and then S3

[Kai-Heng Feng]

at 10:18, AceLan Kao <acelan.kao at canonical.com> wrote:

> BugLink: https://bugs.launchpad.net/bugs/1834550
>
> [Impact]
> System hangs after played video from TBT storage, and then suspend the
> system. It enters suspend correctly, but hangs during waking up.
>
> [Fix]
> There are 2 commits in upstream which fix this issue.
>    95c80bc6952b PCI/PME: Fix hotplug/sysfs remove deadlock in pcie_pme_remove()
>    3943af9d01e9 PCI: pciehp: Ignore Link State Changes after powering off a slot
>
> [Test]
> Verified on below thunderbolt interface with thunderbolt HDD
> 01:00.0 PCI bridge [0604]: Intel Corporation JHL6340 Thunderbolt 3
> Bridge (C step) [Alpine Ridge 2C 2016] [8086:15da] (rev 02)
>
> [Regression Potential]
> Low, both commits have been SRU to Ubuntu Disco 5.0 kernel through
> stable update, and the fix on remove functions are small and reasonable.
>
> Rafael J. Wysocki (1):
>   PCI/PME: Fix hotplug/sysfs remove deadlock in pcie_pme_remove()
>
> Sergey Miroshnichenko (1):
>   PCI: pciehp: Ignore Link State Changes after powering off a slot

Acked-by: Kai-Heng Feng <kai.heng.feng at canonical.com>

>
>  drivers/pci/hotplug/pciehp_ctrl.c |  4 ++++
>  drivers/pci/pcie/pme.c            | 22 +++++++++++++++-------
>  2 files changed, 19 insertions(+), 7 deletions(-)
>
> -- 
> 2.17.1
>
>
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