Re: [PATCH] ACPI: processor: Fix CPU0 wakeup in acpi_idle_play_dead()

2021-03-29 Thread Rafael J. Wysocki
On Wed, Mar 24, 2021 at 4:37 PM Rafael J. Wysocki wrote: > > On Wed, Mar 24, 2021 at 4:23 PM Vitaly Kuznetsov wrote: > > > > Commit 496121c02127 ("ACPI: processor: idle: Allow probing on platforms > > with one ACPI C-state") broke CPU0 hotplug on certain systems, e.g. > > I'm observing the

Re: [PATCH] ACPI: processor: Fix CPU0 wakeup in acpi_idle_play_dead()

2021-03-24 Thread Rafael J. Wysocki
On Wed, Mar 24, 2021 at 4:23 PM Vitaly Kuznetsov wrote: > > Commit 496121c02127 ("ACPI: processor: idle: Allow probing on platforms > with one ACPI C-state") broke CPU0 hotplug on certain systems, e.g. > I'm observing the following on AWS Nitro (e.g r5b.xlarge but other > instance types are

[PATCH] ACPI: processor: Fix CPU0 wakeup in acpi_idle_play_dead()

2021-03-24 Thread Vitaly Kuznetsov
Commit 496121c02127 ("ACPI: processor: idle: Allow probing on platforms with one ACPI C-state") broke CPU0 hotplug on certain systems, e.g. I'm observing the following on AWS Nitro (e.g r5b.xlarge but other instance types are affected as well): # echo 0 > /sys/devices/system/cpu/cpu0/online #