[SRU] [Unstable/OEM-5.14] [PATCH 0/1] Reinstate ACPI S5 for reboot

[Timo Aaltonen]

On 16.11.2021 8.18, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1951055
> 
> [Impact]
> On some systems, Intel WiFi device may stop working after reboot.
> 
> [Fix]
> Use ACPI S5 for reboot.
> 
> [Test]
> 2000 times of reboot stress, and Intel WiFi continues work on affected
> system.
> 
> [Where problems could occur]
> There was a bug introduced by this patch, but the user didn't want to
> find the root cause. Since we have more control on Ubuntu kernel, we'll
> fix the root cause properly this time.
> 
> Kai-Heng Feng (1):
>    UBUNTU: SAUCE: PM: ACPI: reboot: Reinstate S5 for reboot
> 
>   kernel/reboot.c | 2 ++
>   1 file changed, 2 insertions(+)
> 

I looked at the private bug, and looks like there's a proper fix in the 
works?


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