Re: power-off delay/hang due to commit 6d25be57 (mainline)

[Sebastian Andrzej Siewior]

On 2020-06-15 18:19:18 [+0200], Stephen Berman wrote:
> It's there, 196 lines above the Start ffff8d7aa8758a80 line:
> 
> Jun 15 08:56:58 strobe-jhalfs kernel: [  106.275356] acpi_os_execute(1109) Adding acpi_ev_notify_dispatch+0x0/0x55 ffff8d7aa84e70a0 <ffff8d7aa8758a80>

So compared with 
| [  193.321242] acpi_os_execute_deferred_notify(851) Start  ffff8d7aa8758a80 acpi_ev_notify_dispatch+0x0/0x55(ffff8d7aa84e70a0)

it took ~87 seconds for the item to start since it was enqueued.
Assuming that workqueue still makes progress on shutdown it may just a
long time to flush all worker on shutdown. I still have no idea how the
commit in question is responsible for that behaviourâ

> Steve Berman

Sebastian