Arch Linux

0e4ef622

Member

Registered: 2019-08-02

Posts: 2

[SOLVED] 6.16.arch2-1 kernel panic on boot

Recently updated from 6.15.8.arch1-2 to 6.16.arch2-1 and now my laptop doesn't boot. I have an encrypted drive and the password prompt flashes for a split second before the panic happens.

The QR code points to here

For now I used a live USB to downgrade back to 6.15.8.arch1-2 and it's working fine.

Has this happened to anyone else?

Last edited by 0e4ef622 (2025-08-17 18:19:48)

seth

Member

From: Don't DM me only for attention

Registered: 2012-09-03

Posts: 68,405

Re: [SOLVED] 6.16.arch2-1 kernel panic on boot

…
[    0.704283]  ? __x64_sys_openat+0x61/0xa0
[    0.704287]  ? srso_alias_return_thunk+0x5/0xfbef5
[    0.704291]  ? do_syscall_64+0x81/0x970
[    0.704295]  ? srso_alias_return_thunk+0x5/0xfbef5
[    0.704298]  ? do_user_addr_fault+0x21a/0x690
[    0.704304]  ? srso_alias_return_thunk+0x5/0xfbef5
[    0.704308]  ? exc_page_fault+0x7e/0x1a0
[    0.704312]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[    0.704316] RIP: 0033:0x7f04b31310d7
[    0.704320] Code: 00 00 00 b8 ca 00 00 00 0f 05 c3 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 90 66 66 2e 0f 1f 84 00 00 00 00 00 b8 e7 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 09 f4 eb ee 66 0f 1f 44 00 00 f7 d8 89 05 b0
[    0.704327] RSP: 002b:00007fff30090af8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
[    0.704332] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f04b31310d7
[    0.704336] RDX: 000000000000000a RSI: 00007fff300901c0 RDI: 000000000000007f
[    0.704340] RBP: 00007fff30090bd0 R08: 00007f04b313912e R09: 0000000000000020
[    0.704343] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007f04b310206f
[    0.704347] R13: 0000000000000000 R14: 0000000000000000 R15: 00007f04b3102090
[    0.704352]  </TASK>
[    0.704688] Kernel Offset: 0xfe00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)

page fault…

I'll just blame btrfs.
Do you have integrity issues/warnings (on the older kernel - you might want to record those for a possible upstream bug!) and does scrubbing the FS help?

If it's not btrfs, I'll alternatively blame zswap - does it help to disable this?
You can install the LTS kernel next to the 6.16 one so you won't have to up- and downgrade for any tests.

---

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

0e4ef622

Member

Registered: 2019-08-02

Posts: 2

Re: [SOLVED] 6.16.arch2-1 kernel panic on boot

Ok well I reinstalled 6.16 along with the LTS kernel and updated systemd-boot and now it boots fine. I did get 2 checksum errors when running a scrub which is a bit concerning, maybe I should've done a btrfs check before downgrading the kernel in the live USB. At least these 2 aren't on anything important.

Last edited by 0e4ef622 (2025-08-16 16:07:36)

Cooleech

Member

From: Solin, Croatia

Registered: 2015-01-23

Posts: 32

Re: [SOLVED] 6.16.arch2-1 kernel panic on boot

Ok well I reinstalled 6.16 along with the LTS kernel and updated systemd-boot and now it boots fine.
...

Please make sure you're not running LTS kernel. When I installed -lts, it defaults to it on every boot.

Thank you.

Last edited by Cooleech (2025-08-17 05:05:29)