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#1 2021-01-07 14:50:56

Holorum
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Registered: 2020-02-08
Posts: 6
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Random reboot after about a minute of boot with 5.10 kernel

When I updated to the 5.10 kernel after I logged in, about a minute later my machine rebooted. It did this with both the vanilla kernel, and the zen kernel. After downgrading back to the 5.9 kernel the issue didn't persist.
No warning, nothing in the logs, just reboot like a hardreset.
 
The last journalctl with the 5.10.4 kernel: https://pastebin.com/gBLxPzjA
I tried turning NTP off, didn't change a thing.

Tried the 5.11-rc2 kernel, did the same thing.

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#2 2021-01-07 15:33:58

seth
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Registered: 2012-09-03
Posts: 19,029

Re: Random reboot after about a minute of boot with 5.10 kernel

Ryzen.

Did yo try the LTS kernel?
Chances are BIOS or µcode, https://bbs.archlinux.org/viewtopic.php?id=257371

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#3 2021-01-07 15:34:04

V1del
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Registered: 2012-10-16
Posts: 12,250

Re: Random reboot after about a minute of boot with 5.10 kernel

Based on purely anecdotal evidence (I happen to have a system where I know that that is the cause for instant shutdowns not unlike what you describe), try disabling snd_hda_intel's power save with e.g. a file in /etc/modprobe.d/sound.conf

options snd_hda_intel power_save=0

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#4 2021-01-07 16:01:39

seth
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Registered: 2012-09-03
Posts: 19,029

Re: Random reboot after about a minute of boot with 5.10 kernel

Also ALC1220?

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#5 2021-01-07 16:02:03

Holorum
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Registered: 2020-02-08
Posts: 6
Website

Re: Random reboot after about a minute of boot with 5.10 kernel

seth wrote:

Ryzen.

Did yo try the LTS kernel?
Chances are BIOS or µcode, https://bbs.archlinux.org/viewtopic.php?id=257371


I am running the latest (3102) BIOS, and have amd-ucode working.


V1del wrote:

Based on purely anecdotal evidence (I happen to have a system where I know that that is the cause for instant shutdowns not unlike what you describe), try disabling snd_hda_intel's power save with e.g. a file in /etc/modprobe.d/sound.conf

options snd_hda_intel power_save=0

That didn't work.

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#6 2021-01-07 16:15:11

Holorum
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Registered: 2020-02-08
Posts: 6
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Re: Random reboot after about a minute of boot with 5.10 kernel

seth wrote:

Did yo try the LTS kernel?


I am using it right now. But I want the latest kernel and I don't see any reason other than this issue, why I couldn't.

Last edited by Holorum (2021-01-07 16:15:23)

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#7 2021-01-07 16:17:31

seth
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Registered: 2012-09-03
Posts: 19,029

Re: Random reboot after about a minute of boot with 5.10 kernel

You want to know whether the kernel update was actually the trigger.

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#8 2021-01-07 16:18:57

Holorum
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Registered: 2020-02-08
Posts: 6
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Re: Random reboot after about a minute of boot with 5.10 kernel

seth wrote:

You want to know whether the kernel update was actually the trigger.

I am pretty sure, yes: With the 5.9 kernels and the 5.4 LTS kernel the system is stable.

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#9 2021-01-07 16:43:09

seth
Member
Registered: 2012-09-03
Posts: 19,029

Re: Random reboot after about a minute of boot with 5.10 kernel

Is the behavior somewhat deterministic? ("after I logged in, about a minute later")
What if you don't log in?
What if you only boot the multi-user.target?

If so, what if you chose a different session (eg. openbox, I assume you're currently using KDE/plasma)?

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#10 2021-01-07 19:15:00

Holorum
Member
Registered: 2020-02-08
Posts: 6
Website

Re: Random reboot after about a minute of boot with 5.10 kernel

It's one minute after decrypting my root partition.
It happens even if I log in.
It happens even when only booting to multi-user.target.
It happens when I switch to KDE Plasma (I use i3-gaps normally).
Disabling sddm didn't help either.

I tried with the new 5.10.5, didn't help.

Last edited by Holorum (2021-01-07 19:18:13)

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#11 2021-01-07 22:24:24

seth
Member
Registered: 2012-09-03
Posts: 19,029

Re: Random reboot after about a minute of boot with 5.10 kernel

The multi-user.target makes GPU and RAM unlikely, see https://wiki.gentoo.org/wiki/Ryzen#Rand … mce_events
Despite there're no MCE errors in the journal, try to limit the C-States…

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#12 2021-01-08 05:59:19

Holorum
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Registered: 2020-02-08
Posts: 6
Website

Re: Random reboot after about a minute of boot with 5.10 kernel

Limiting the C-states didn't help.
No luck with the kernel parameter

idle=nomwait

either.
And disabling "Power Supply Idle Control" wasn't any better.

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