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SubjectRe: power-off delay/hang due to commit 6d25be57 (mainline)
On 2020-06-15 17:41:06 [+0200], Stephen Berman wrote:
> > If you do this "t" then there should be a lot of output on your console.
> > If you do this from an xterm then you can see the output after typing
> > "dmesg". The output should appear also in your system log.
>
> Ah, ok, I do see it in the log, it looks basically the same as the call
> trace I posted upthread. I wonder why there was no such output in the
> console, could there be some setting that suppresses it even though
> /proc/sys/kernel/sysrq has `1'?

You have ignore_loglevel soo everything should appear on your console.
The is true for your tty / ctrl+alt+f1 but your xterm shell.

> There were in fact 99 "Start .* acpi_ev_notify_dispatch" messages and 98
> "End .* acpi_ev_notify_dispatch" messages. Here's the last of them
> before I rebooted:
>
> Jun 15 08:58:25 strobe-jhalfs kernel: [ 193.315014] acpi_os_execute(1109) Adding acpi_ev_notify_dispatch+0x0/0x55 ffff8d7aa99a66e0 <ffff8d7aabb38480>
> Jun 15 08:58:25 strobe-jhalfs kernel: [ 193.319929] acpi_os_execute_deferred_notify(853) End ffff8d7aa8758d00 acpi_ev_notify_dispatch+0x0/0x55(ffff8d7aa84e7eb0)
> Jun 15 08:58:25 strobe-jhalfs kernel: [ 193.321242] acpi_os_execute_deferred_notify(851) Start ffff8d7aa8758a80 acpi_ev_notify_dispatch+0x0/0x55(ffff8d7aa84e70a0)
> Jun 15 08:58:26 strobe-jhalfs kernel: [ 194.339017] acpi_os_execute(1109) Adding acpi_ev_notify_dispatch+0x0/0x55 ffff8d7aa99a6730 <ffff8d7aabb384c0>
> Jun 15 08:58:27 strobe-jhalfs kernel: [ 195.363005] acpi_os_execute(1109) Adding acpi_ev_notify_dispatch+0x0/0x55 ffff8d7aa99a6780 <ffff8d7aabb38500>
> Jun 15 08:58:27 strobe-jhalfs kernel: [ 195.367978] acpi_os_execute_deferred_notify(853) End ffff8d7aa8758a80 acpi_ev_notify_dispatch+0x0/0x55(ffff8d7aa84e70a0)
> Jun 15 08:58:27 strobe-jhalfs kernel: [ 195.369234] acpi_os_execute_deferred_notify(851) Start ffff8d7aa8758240 acpi_ev_notify_dispatch+0x0/0x55(ffff8d7aa84e7a00)
> Jun 15 08:58:28 strobe-jhalfs kernel: [ 196.387017] acpi_os_execute(1109) Adding acpi_ev_notify_dispatch+0x0/0x55 ffff8d7aa99a68c0 <ffff8d7aabb38540>
> Jun 15 08:58:28 strobe-jhalfs kernel: [ 196.388508] acpi_os_execute_deferred_notify(853) End ffff8d7aa8758240 acpi_ev_notify_dispatch+0x0/0x55(ffff8d7aa84e7a00)
> Jun 15 08:58:28 strobe-jhalfs kernel: [ 196.390128] acpi_os_execute_deferred_notify(851) Start ffff8d7aa8758b80 acpi_ev_notify_dispatch+0x0/0x55(ffff8d7aa84e7460)
> Jun 15 08:58:29 strobe-jhalfs kernel: [ 197.208714] wlan1: deauthenticating from 7c:ff:4d:08:df:22 by local choice (Reason: 3=DEAUTH_LEAVING)
> Jun 15 08:58:29 strobe-jhalfs kernel: [ 197.232214] ip (4614) used greatest stack depth: 11272 bytes left
> Jun 15 08:58:29 strobe-jhalfs kernel: Kernel logging (proc) stopped.
> Jun 15 08:58:29 strobe-jhalfs kernel: Kernel log daemon terminating.

Okay. So there is "Adding" of four events/work items in total, each
almost every second.
Processing of one work-item took two seconds, the other one took a
second. These events are "old" so I don't see the "adding" line for the
Start/End.
You could look in the log for ffff8d7aa8758a80 to seen when it was
enqueued but it feels like ACPI enqueues more events then it is capable
of processing.

> Steve Berman

Sebastian

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