Update from kernel-5.3.16-300.fc31.x86_64 to kernel-5.4.7-200.fc31.x86_64 is broken in my E495 Lenovo Thinkpad with a AMD Ryzen 3000 CPU. There’s a small IRQ 7 problem with the working kernel, but harmless.
3.651008] [drm] Initialized amdgpu 3.33.0 20150101 for 0000:04:00.0 on minor 0
[ 4.108021] irq 7: nobody cared (try booting with the "irqpoll" option)
[ 4.108024] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 5.3.16-300.fc31.x86_64 #1
[ 4.108024] Hardware name: LENOVO 20NECTO1WW/20NECTO1WW, BIOS R11ET30W (1.10 ) 10/11/2019
[ 4.108025] Call Trace:
[ 4.108027] <IRQ>
[ 4.108032] dump_stack+0x66/0x90
[ 4.108035] __report_bad_irq+0x35/0xa7
[ 4.108037] note_interrupt.cold+0xb/0x63
[ 4.108038] handle_irq_event_percpu+0x6f/0x80
[ 4.108039] handle_irq_event+0x28/0x48
[ 4.108041] handle_fasteoi_irq+0x86/0x130
[ 4.108043] handle_irq+0x1c/0x30
[ 4.108045] do_IRQ+0x4b/0xd0
[ 4.108047] common_interrupt+0xf/0xf
[ 4.108048] </IRQ>
[ 4.108050] RIP: 0010:cpuidle_enter_state+0xc4/0x420
[ 4.108052] Code: e8 31 c5 92 ff 80 7c 24 0f 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 39 03 00 00 31 ff e8 d3 b2 98 ff fb 66 0f 1f 44 00 00 <45> 85 e4 0f 89 cf 01 00 00 c7 45 10 00 00 00 00 48 83 c4 18 44 89
[ 4.108052] RSP: 0018:ffffb3b90014fe68 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffd9
[ 4.108054] RAX: ffffa0d4f88a8880 RBX: ffffffff9c4dbfa0 RCX: 00000000f361c981
[ 4.108054] RDX: 00000000f3710bb7 RSI: 00000000f361c981 RDI: 0000000000000000
[ 4.108055] RBP: ffffa0d4efd9e400 R08: 00000000f361c995 R09: 000000007fffffff
[ 4.108055] R10: ffffa0d4f88a76c4 R11: ffffa0d4f88a76a4 R12: 0000000000000002
[ 4.108056] R13: 00000000f361c995 R14: 0000000000000002 R15: ffffa0d4f7b9ddc0
[ 4.108058] ? cpuidle_enter_state+0x9f/0x420
[ 4.108059] cpuidle_enter+0x29/0x40
[ 4.108061] do_idle+0x1cf/0x250
[ 4.108062] cpu_startup_entry+0x19/0x20
[ 4.108065] start_secondary+0x163/0x1b0
[ 4.108067] secondary_startup_64+0xa4/0xb0
[ 4.108068] handlers:
[ 4.108071] [<0000000068d4f88b>] amd_gpio_irq_handler [pinctrl_amd]
[ 4.108072] Disabling IRQ #7
It halts very early in the boot, so no logs unfortunately.
The new kernel crashes after this message I believe.