Subject: [Bug 213079] IRQ problems and crashes on a PowerMac G5 with 5.13-rc1

From: [email-masked]
Date: Sat, 15 May 2021 12:30:16 +0000

https://bugzilla.kernel.org/show_bug.cgi?id=213079

--- Comment #2 from Erhard F. ([email-masked]) ---
Hmm... Just also happened on 5.12.3. But without the Kernel panic (yet).

[...]
irq 63: nobody cared (try booting with the "irqpoll" option)
Call Trace:
CPU: 1 PID: 43491 Comm: emerge Tainted: G        W        
5.12.3-gentoo-PowerMacG5 #2
[c00000000ffefae0] [c00000000053950c] .dump_stack+0xe0/0x13c (unreliable)
[c00000000ffefb80] [c0000000000ddb68] .__report_bad_irq+0x34/0xf0
[c00000000ffefc20] [c0000000000dda50] .note_interrupt+0x250/0x2f8
[c00000000ffefce0] [c0000000000d9cf8] .handle_irq_event_percpu+0x64/0x90
[c00000000ffefd70] [c0000000000d9d68] .handle_irq_event+0x44/0x70
[c00000000ffefe00] [c0000000000df164] .handle_fasteoi_irq+0xac/0x158
[c00000000ffefea0] [c0000000000d8db8] .generic_handle_irq+0x38/0x58
[c00000000ffeff10] [c000000000011314] .__do_irq+0x15c/0x238
[c00000000ffeff90] [c00000000001fe04] .call_do_irq+0x14/0x24
[c000000056e2fd70] [c00000000001154c] .do_IRQ+0x15c/0x164
[c000000056e2fe10] [c000000000007d38]
hardware_interrupt_common_virt+0x158/0x160
--- interrupt: 500 at 0x3fffb8a21520
handlers:
NIP:  00003fffb8a21520 LR: 00003fffb8a214a0 CTR: 00003fffb8ae6d20
REGS: c000000056e2fe80 TRAP: 0500   Tainted: G        W         
(5.12.3-gentoo-PowerMacG5)
MSR:  900000000200f032 <SF,HV,VEC,EE,PR,FP,ME,IR,DR,RI>  CR: 42482824  XER:
20000000
IRQMASK: 0 
GPR00: 00003fffb8a214a0 00003fffdb199650 00003fffb8df7200 000000014e8ddc60 
GPR04: 00003fffb210e000 95bfd31b66b69e10 00003fffdb199478 0000000000024d50 
GPR08: 000000014cb987c0 0000000000000002 0000000000000000 0000000000000000 
GPR12: 00003fffb8ae0e50 00003fffb8eb4850 00003fffdb199a58 000000014e8ddf60 
GPR16: 00003fffdb199a70 ffffffffffffffff 0000000000000001 000000014b5d8460 
GPR20: 0000000000000000 0000000000000002 000000014e8ddf38 00003fffb6b176e8 
GPR24: 000000014c126958 00003fffb2030390 000000014b94c380 000000014b5d8460 
GPR28: 000000014c1267f0 000000014c126a60 000000014c1267f0 0000000000000000 
NIP [00003fffb8a21520] 0x3fffb8a21520
LR [00003fffb8a214a0] 0x3fffb8a214a0
--- interrupt: 500
[<000000000e5af612>] .nvme_irq
[<000000000e5af612>] .nvme_irq
Disabling IRQ #63

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