Bug 204779

Summary:	Xubuntu 18.04 Sometimes freezes when turned off on the logo
Product:	ACPI	Reporter:	Maxim (0963499018m)
Component:	BIOS	Assignee:	acpi_bios
Status:	CLOSED INSUFFICIENT_DATA
Severity:	normal	CC:	rui.zhang
Priority:	P1
Hardware:	All
OS:	Linux
URL:	https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1842865
Kernel Version:	5.0.0-27	Subsystem:
Regression:	No	Bisected commit-id:

Description Maxim 2019-09-05 06:36:35 UTC

When I turn off the computer, it hangs on the logo. The light on the system unit continues to light. Does not respond to the keyboard. Kernel version 5.0.0-27. Here is the error:

info: task systemd shutdown:1 blocked for more than 120 seconds
Not tainted 5.0.0-20-generic #21-Ubuntu
«echo 0 /proc/sys kernel/hung_task_timeout_secs» disables this message

https://ibb.co/PcYvDLq

Comment 1 Maxim 2019-09-23 18:33:05 UTC

Sometimes, when I turn off the computer, it hangs on the logo. I can not turn off the computer using alt + SysRq + REISUO. The light on the system unit continues to light, and the fan runs. This is a problem with kernel 5.0, 5.3

Here is the error:
info: task systemd shutdown:1 blocked for more than 120 seconds
Not tainted 5.0.0-20-generic #21-Ubuntu
«echo 0 /proc/sys kernel/hung_task_timeout_secs» disables this message

https://ibb.co/PcYvDLq
https://ibb.co/4JMGwvC

sudo dmesg|grep ACPI|less - https://pastebin.com/PZxRGNyJ

Comment 2 Eric Sandeen 2019-09-23 18:44:06 UTC

I see that you've already filed an ubuntu bug.

Certainly, having it assigned to the upstream ext4 group is not going to yield progress here, as there is no indication whatsoever that it's an ext4 bug.

If ubuntu is able to triage the bug to an actual upstream kernel bug, please reopen a bug against the proper kernel component if/when the root cause is identified.

Comment 3 Maxim 2019-09-24 16:10:07 UTC

If I understand correctly, is this bug not related to the kernel?

Comment 4 Theodore Tso 2019-09-25 14:33:50 UTC

It was assigned to the upstream ext4 group, which meant no one was going to be paying attention to it (the ext4 file system team does not look at ACPI issues) and the bug is versus a distribution kernel.   If you can reproduce the problem using the latest upstream kernel, then you can file a bug reporting to the ACPI mailing list.  But it is often much more efficient to let the distribution's kernel team triage the bug first.

Comment 5 Maxim 2019-10-07 10:57:00 UTC

With kernel 5.3, the same problem

Comment 6 Maxim 2019-10-12 14:56:46 UTC

There is no such problem with the 4.15 kernel. It happens that after 90 seconds it turns off. And with a new core, he writes that he will turn off after 90 seconds, but he will not turn off.

Comment 7 Zhang Rui 2020-06-29 10:11:00 UTC

(In reply to Maxim from comment #6)
> There is no such problem with the 4.15 kernel.

You mean vanilla 4.15 kernel, right?

> It happens that after 90
> seconds it turns off. And with a new core, he writes that he will turn off
> after 90 seconds, but he will not turn off.

Does the problem still exist in latest upstream kernel?
If yes, please run git bisect to find out the offending commit which introduces the problem.

Comment 8 Zhang Rui 2020-11-18 14:25:40 UTC

Bug closed as there is no response from the bug reporter.
Please feel free to re-open it if you can provide the information required in comment #7