linux-kernel - Re: [PATCH v2 2/2] thermal: Move therm

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Date:   Tue, 9 Feb 2021 11:27:57 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:     Borislav Petkov <bp@...e.de>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Zhang Rui <rui.zhang@...el.com>, linux-pm@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>,
        Amit Kucheria <amitk@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        X86 ML <x86@...nel.org>
Subject: Re: [PATCH v2 2/2] thermal: Move therm_throt there from x86/mce

Hi,

Seems that the patch triggers some WARNs on my laptop.

For every CPU:

[    0.003751] WARNING: CPU: 4 PID: 0 at arch/x86/kernel/irq.c:390 thermal_set_handler+0x12/0x25
[    0.003751] Modules linked in:
[    0.003751] CPU: 4 PID: 0 Comm: swapper/4 Tainted: G        W         5.11.0-rc6-next-20210208-00003-g3ba4c4f662ad-dirty #1928
[    0.003751] RIP: 0010:thermal_set_handler+0x12/0x25
[    0.003751] RSP: 0000:ffffb5f0c00c7ed8 EFLAGS: 00010097
[    0.003751] RAX: 0000000000000003 RBX: 0000000000000000 RCX: 00000000000001b2
[    0.003751] RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffffffff98410d00
[    0.003751] RBP: ffff9e3c5fb11460 R08: 0000000000000000 R09: 000000000003007f
[    0.003751] R10: ffff9e3c5fb11480 R11: 0000000000000000 R12: 0000000000000428
[    0.003751] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[    0.003751] FS:  0000000000000000(0000) GS:ffff9e3c5fb00000(0000) knlGS:0000000000000000
[    0.003751] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.003751] CR2: 0000000000000000 CR3: 000000039ee0a001 CR4: 00000000001706a0
[    0.003751] Call Trace:
[    0.003751]  intel_init_thermal+0x16d/0x1c7
[    0.003751]  identify_cpu+0x249/0x329
[    0.003751]  identify_secondary_cpu+0x15/0x8c
[    0.003751]  smp_store_cpu_info+0x3f/0x48
[    0.003751]  start_secondary+0x42/0xfd
[    0.003751]  secondary_startup_64_no_verify+0xb0/0xbb

	-ss