The following kernel warning noticed on Linux next tag 20210205 while booting x86_64 and i386. step to reproduce: - Boot linux next tag 20210205 on x86_64 - While booting you will notice the below warning [ 1.046552] ------------[ cut here ]------------ [ 1.046552] WARNING: CPU: 1 PID: 0 at arch/x86/kernel/irq.c:390 thermal_set_handler+0x31/0x40 [ 1.046552] Modules linked in: [ 1.046552] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.11.0-rc6-next-20210205 #2 [ 1.046552] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 1.046552] RIP: 0010:thermal_set_handler+0x31/0x40 [ 1.046552] Code: 89 e5 48 85 ff 74 16 48 81 3d 3f 75 99 01 33 59 8a a1 75 16 48 89 3d 36 75 99 01 5d c3 48 c7 05 29 75 99 01 33 59 8a a1 5d c3 <0f> 0b eb e6 cc cc cc cc cc cc cc cc cc cc cc 0f 1f 44 00 00 55 45 [ 1.046552] RSP: 0000:ffffb351800afe60 EFLAGS: 00010093 [ 1.046552] RAX: 0000000000000003 RBX: ffffa27d9fc91460 RCX: 00000000000001b2 [ 1.046552] RDX: 0000000000000000 RSI: 00000000000100fa RDI: ffffffffa1505340 [ 1.046552] RBP: ffffb351800afe60 R08: 0000000000000000 R09: 0000000000000020 [ 1.046552] R10: 0000000000000100 R11: 0000000000000000 R12: 0000000000000000 [ 1.046552] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 1.046552] FS: 0000000000000000(0000) GS:ffffa27d9fc80000(0000) knlGS:0000000000000000 [ 1.046552] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1.046552] CR2: 0000000000000000 CR3: 00000003ff610001 CR4: 00000000003706a0 [ 1.046552] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1.046552] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1.046552] Call Trace: [ 1.046552] intel_init_thermal+0x152/0x410 [ 1.046552] init_intel+0x113/0x480 [ 1.046552] identify_cpu+0x343/0x7b0 [ 1.046552] identify_secondary_cpu+0x18/0x90 [ 1.046552] smp_store_cpu_info+0x4e/0x60 [ 1.046552] start_secondary+0x55/0x150 [ 1.046552] secondary_startup_64_no_verify+0xc2/0xcb [ 1.046552] ---[ end trace 88e67487dd39a322 ]--- [ 1.330140] #2 [ 1.046552] ------------[ cut here ]------------ [ 1.046552] WARNING: CPU: 2 PID: 0 at arch/x86/kernel/irq.c:390 thermal_set_handler+0x31/0x40 [ 1.046552] Modules linked in: [ 1.046552] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G # W 5.11.0-rc6-next-20210205 #2 [ 1.046552] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 1.046552] RIP: 0010:thermal_set_handler+0x31/0x40 [ 1.046552] Code: 89 e5 48 85 ff 74 16 48 81 3d 3f 75 99 01 33 59 8a a1 75 16 48 89 3d 36 75 99 01 5d c3 48 c7 05 29 75 99 01 33 59 8a a1 5d c3 <0f> 0b eb e6 cc cc cc cc cc cc cc cc cc cc cc 0f 1f 44 00 00 55 45 [ 1.046552] RSP: 0000:ffffb351800b7e60 EFLAGS: 00010093 [ 1.046552] RAX: 0000000000000003 RBX: ffffa27d9fd11460 RCX: 00000000000001b2 [ 1.046552] RDX: 0000000000000000 RSI: 00000000000100fa RDI: ffffffffa1505340 [ 1.046552] RBP: ffffb351800b7e60 R08: 0000000000000000 R09: 0000000000000020 [ 1.046552] R10: 0000000000000100 R11: 0000000000000000 R12: 0000000000000000 [ 1.046552] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 1.046552] FS: 0000000000000000(0000) GS:ffffa27d9fd00000(0000) knlGS:0000000000000000 [ 1.046552] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1.046552] CR2: 0000000000000000 CR3: 00000003ff610001 CR4: 00000000003706a0 [ 1.046552] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1.046552] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1.046552] Call Trace: [ 1.046552] intel_init_thermal+0x152/0x410 [ 1.046552] init_intel+0x113/0x480 [ 1.046552] identify_cpu+0x343/0x7b0 [ 1.046552] identify_secondary_cpu+0x18/0x90 [ 1.046552] smp_store_cpu_info+0x4e/0x60 [ 1.046552] start_secondary+0x55/0x150 [ 1.046552] secondary_startup_64_no_verify+0xc2/0xcb [ 1.046552] ---[ end trace 88e67487dd39a323 ]--- [ 1.500028] #3 [ 1.046552] ------------[ cut here ]------------ [ 1.046552] WARNING: CPU: 3 PID: 0 at arch/x86/kernel/irq.c:390 thermal_set_handler+0x31/0x40 [ 1.046552] Modules linked in: [ 1.046552] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G W 5.11.0-rc6-next-20210205# #2 [ 1.046552] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 1.046552] RIP: 0010:thermal_set_handler+0x31/0x40 [ 1.046552] Code: 89 e5 48 85 ff 74 16 48 81 3d 3f 75 99 01 33 59 8a a1 75 16 48 89 3d 36 75 99 01 5d c3 48 c7 05 29 75 99 01 33 59 8a a1 5d c3 <0f> 0b eb e6 cc cc cc cc cc cc cc cc cc cc cc 0f 1f 44 00 00 55 45 [ 1.046552] RSP: 0000:ffffb351800bfe60 EFLAGS: 00010093 [ 1.046552] RAX: 0000000000000003 RBX: ffffa27d9fd91460 RCX: 00000000000001b2 [ 1.046552] RDX: 0000000000000000 RSI: 00000000000100fa RDI: ffffffffa1505340 [ 1.046552] RBP: ffffb351800bfe60 R08: 0000000000000000 R09: 0000000000000020 [ 1.046552] R10: 0000000000000100 R11: 0000000000000000 R12: 0000000000000000 [ 1.046552] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 1.046552] FS: 0000000000000000(0000) GS:ffffa27d9fd80000(0000) knlGS:0000000000000000 [ 1.046552] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1.046552] CR2: 0000000000000000 CR3: 00000003ff610001 CR4: 00000000003706a0 [ 1.046552] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1.046552] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1.046552] Call Trace: [ 1.046552] intel_init_thermal+0x152/0x410 [ 1.046552] init_intel+0x113/0x480 [ 1.046552] identify_cpu+0x343/0x7b0 [ 1.046552] identify_secondary_cpu+0x18/0x90 [ 1.046552] smp_store_cpu_info+0x4e/0x60 [ 1.046552] start_secondary+0x55/0x150 [ 1.046552] secondary_startup_64_no_verify+0xc2/0xcb [ 1.046552] ---[ end trace 88e67487dd39a324 ]--- [ 1.670074] smp: Brought up 1 node, 4 CPUs [ 1.670523] smpboot: Max logical packages: 1 [ 1.671522] smpboot: Total of 4 processors activated (24000.00 BogoMIPS) [ 1.673543] devtmpfs: initialized [ 1.674629] PM: Registering ACPI NVS region [mem 0x8879d000-0x8879dfff] (4096 bytes) [ 1.675523] PM: Registering ACPI N# VS region [mem 0x8d11f000-0x8d891fff] (7811072 bytes) [ 1.676615] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns [ 1.677523] futex hash table entries: 1024 (order: 4, 65536 bytes, linear) [ 1.678701] PM: RTC time: 11:53:55, date: 2021-02-05 [ 1.679575] NET: Registered protocol family 16 [ 1.680593] audit: initializing netlink subsys (disabled) [ 1.681526] audit: type=2000 audit(1612526033.562:1): state=initialized audit_enabled=0 res=1 [ 1.681583] thermal_sys: Registered thermal governor 'step_wise' [ 1.682523] thermal_sys: Registered thermal governor 'user_space' [ 1.683530] cpuidle: using governor menu Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx> Full test log link, https://lkft.validation.linaro.org/scheduler/job/2233628#L498 metadata: git branch: master git repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next git describe: next-20210205 kernel-config: https://builds.tuxbuild.com/1o3nLyZtkkU2dUsallc286STyPX/config build link: https://builds.tuxbuild.com/1o3nLyZtkkU2dUsallc286STyPX/ -- Linaro LKFT https://lkft.linaro.org