Arch Linux

loqs

Member

Registered: 2014-03-06

Posts: 18,859

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

git bisect bad
Bisecting: 1973 revisions left to test after this (roughly 11 steps)
[5cd4dc44b8a0f656100e3b6916cf73b1623299eb] Merge tag 'staging-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

https://drive.google.com/file/d/1susyul … sp=sharing linux-5.15.r9467.g5cd4dc44b8a0-1-x86_64.pkg.tar.zst
https://drive.google.com/file/d/1v4PD3j … sp=sharing linux-headers-5.15.r9467.g5cd4dc44b8a0-1-x86_64.pkg.tar.zst

Maniaxx

Member

Registered: 2014-05-14

Posts: 761

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

I don't understand, You have the output there already, when do you want me to run it?

Yes, sorry. I haven't seen you've merged the output in one post. There is no delay visible though. Entropy pool seems good as well.

Last edited by Maniaxx (2022-04-05 20:23:47)

---

sys2064

Kepis

Member

Registered: 2021-12-15

Posts: 105

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

Loqs, the result of this kernel is the same as for the previous one. Also, I don't use the linux-headers.
Here is a photo of the screen that I got immediately after restart:
Kernel Panic Screenshot

Last edited by Kepis (2022-04-06 16:44:03)

loqs

Member

Registered: 2014-03-06

Posts: 18,859

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

The panic is from the mt7291e module so the bisection is still on track?

https://drive.google.com/file/d/1Pm1Zw3 … sp=sharing linux-5.15.r8489.gd461e96cd22b-1-x86_64.pkg.tar.zst

Kepis

Member

Registered: 2021-12-15

Posts: 105

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

This version caused a kernel panic some time after login and after all the systemd-udevd processes were gone. Also the whole time it was running after restart 4 cores were going at around 30% usage. Normal startup didn't do such thing.

loqs

Member

Registered: 2014-03-06

Posts: 18,859

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

Is there anything in the journal from the latest kernel panic with the latest version?

Kepis

Member

Registered: 2021-12-15

Posts: 105

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

I just tried it again, to get the kernel panic, this is the journalctl -p 5 -b output.
BTW it happens at random times - before it was after I logged in but now it was once again immediately after restart.

loqs

Member

Registered: 2014-03-06

Posts: 18,859

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

I did both sides of this bisect as the result was unclear

git bisect bad
Bisecting: 488 revisions left to test after this (roughly 9 steps)
[353bbb3d07e836738869a74e23f2deba0a34aa80] Merge tag 'imx-bindings-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dt

https://drive.google.com/file/d/1XYz-fb … sp=sharing linux-5.15rc3.r487.g353bbb3d07e8-1-x86_64.pkg.tar.zst

git bisect good
Bisecting: 488 revisions left to test after this (roughly 9 steps)
[84799c41c6d2495a96bff97950ca3fe6f2c617cb] staging: r8188eu: remove an unused define

https://drive.google.com/file/d/1q3YHLr … sp=sharing linux-5.15rc3.r489.g84799c41c6d2-1-x86_64.pkg.tar.zst

Kepis

Member

Registered: 2021-12-15

Posts: 105

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

Both of the files you sent work fine without any blacklist.
The second one seems to get rid of the systemd-udevd processes a bit quicker, but it depends - from 5 restarts only 2 got rid of them quickly (5s vs 30s).

loqs

Member

Registered: 2014-03-06

Posts: 18,859

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

git bisect good
Bisecting: 264 revisions left to test after this (roughly 8 steps)
[7ddb58cb0ecae8e8b6181d736a87667cc9ab8389] Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

https://drive.google.com/file/d/1WNpvW5 … sp=sharing linux-5.15.r8713.g7ddb58cb0eca-1-x86_64.pkg.tar.zst

Kepis

Member

Registered: 2021-12-15

Posts: 105

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

This one panicked immediately.

loqs

Member

Registered: 2014-03-06

Posts: 18,859

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

git bisect bad
Bisecting: 110 revisions left to test after this (roughly 7 steps)
[b43e2d554ab09a836da14c70384698395ac116bf] Merge branches 'clk-leak', 'clk-rockchip', 'clk-renesas' and 'clk-at91' into clk-next

https://drive.google.com/file/d/1k3Z8g2 … sp=sharing linux-5.15rc1.r115.gb43e2d554ab0-1-x86_64.pkg.tar.zst

Kepis

Member

Registered: 2021-12-15

Posts: 105

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

This worked all well.
If you would guide me, how to get to those kernels or how to pick the ones to test, I could maybe speed up this process a little.

Slithery

Administrator

From: Norfolk, UK

Registered: 2013-12-01

Posts: 5,776

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

https://wiki.archlinux.org/title/Bisect … s_with_Git

---

No, it didn't "fix" anything. It just shifted the brokeness one space to the right. - jasonwryan
Closing -- for deletion; Banning -- for muppetry. - jasonwryan

aur - dotfiles

loqs

Member

Registered: 2014-03-06

Posts: 18,859

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

git bisect good
Bisecting: 42 revisions left to test after this (roughly 6 steps)
[e2ceaa867d266472b31f3e03ba16f3120aefc152] Merge branches 'clk-composite-determine-fix', 'clk-allwinner', 'clk-amlogic' and 'clk-samsung' into clk-next

git bisect log
git bisect start
# bad: [df0cc57e057f18e44dac8e6c18aba47ab53202f9] Linux 5.16
git bisect bad df0cc57e057f18e44dac8e6c18aba47ab53202f9
# good: [8bb7eca972ad531c9b149c0a51ab43a417385813] Linux 5.15
git bisect good 8bb7eca972ad531c9b149c0a51ab43a417385813
# good: [2219b0ceefe835b92a8a74a73fe964aa052742a2] Merge tag 'soc-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
git bisect good 2219b0ceefe835b92a8a74a73fe964aa052742a2
# bad: [206825f50f908771934e1fba2bfc2e1f1138b36a] Merge tag 'mtd/for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
git bisect bad 206825f50f908771934e1fba2bfc2e1f1138b36a
# bad: [5cd4dc44b8a0f656100e3b6916cf73b1623299eb] Merge tag 'staging-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
git bisect bad 5cd4dc44b8a0f656100e3b6916cf73b1623299eb
# good: [d461e96cd22b5aeb1df448536b92e8d8e88c4a05] Merge tag 'drivers-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
git bisect good d461e96cd22b5aeb1df448536b92e8d8e88c4a05
# good: [84799c41c6d2495a96bff97950ca3fe6f2c617cb] staging: r8188eu: remove an unused define
git bisect good 84799c41c6d2495a96bff97950ca3fe6f2c617cb
# bad: [7ddb58cb0ecae8e8b6181d736a87667cc9ab8389] Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
git bisect bad 7ddb58cb0ecae8e8b6181d736a87667cc9ab8389
# good: [b43e2d554ab09a836da14c70384698395ac116bf] Merge branches 'clk-leak', 'clk-rockchip', 'clk-renesas' and 'clk-at91' into clk-next
git bisect good b43e2d554ab09a836da14c70384698395ac116bf

https://drive.google.com/file/d/1T_21mK … sp=sharing linux-5.15rc1.r184.ge2ceaa867d26-1-x86_64.pkg.tar.zst

Can not spot a possible cause in the 42 commits left they are all CLK.

Last edited by loqs (2022-04-10 22:46:12)

Kepis

Member

Registered: 2021-12-15

Posts: 105

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

This one caused no problem.
I unfortunately don't have the knowledge to take a deeper dig inside, but is it possible, that it was caused by some change elswhere in some distant interconnenction?

Kepis

Member

Registered: 2021-12-15

Posts: 105

Re: [Solved] 5.16.0 Linux Kernel Panic after reboot - wifi mt7921e

Fixed in kernel 5.17.3