From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: linux-pm@vger.kernel.org
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
Len Brown <lenb@kernel.org>,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Viresh Kumar <viresh.kumar@linaro.org>
Subject: intel_pstate_get_hwp_cap on wrong CPU
Date: Wed, 29 May 2024 17:57:40 +0200 [thread overview]
Message-ID: <20240529155740.Hq2Hw7be@linutronix.de> (raw)
Hi,
this just popped up:
| [ 6538.614568] unchecked MSR access error: RDMSR from 0x771 at rIP: 0xffffffff817d2250 (__rdmsr_on_cpu+0x20/0x50)
| [ 6538.625714] Call Trace:
| [ 6538.629156] <TASK>
| [ 6538.675067] generic_exec_single+0x58/0x120
| [ 6538.680236] smp_call_function_single+0xbf/0x110
| [ 6538.696333] rdmsrl_on_cpu+0x46/0x60
| [ 6538.700894] intel_pstate_get_hwp_cap+0x1b/0x70
| [ 6538.706420] intel_pstate_update_limits+0x2a/0x60
| [ 6538.712110] acpi_processor_notify+0xb7/0x140
| [ 6538.717479] acpi_ev_notify_dispatch+0x3b/0x60
| [ 6538.722910] acpi_os_execute_deferred+0xf/0x20
| [ 6538.728346] process_one_work+0x13d/0x350
| [ 6538.733342] worker_thread+0x2c2/0x3d0
| [ 6538.743066] kthread+0xca/0x100
| [ 6538.751844] ret_from_fork+0x2c/0x40
| [ 6538.761073] ret_from_fork_asm+0x11/0x20
| [ 6538.765993] </TASK>
| root@h:~# grep . /sys/devices/system/cpu/intel_pstate/*
| /sys/devices/system/cpu/intel_pstate/max_perf_pct:100
| /sys/devices/system/cpu/intel_pstate/min_perf_pct:36
| /sys/devices/system/cpu/intel_pstate/no_turbo:0
| /sys/devices/system/cpu/intel_pstate/num_pstates:4294967285
^ => -EAGAIN
| /sys/devices/system/cpu/intel_pstate/status:passive
| /sys/devices/system/cpu/intel_pstate/turbo_pct:0
|# cpupower frequency-info
|analyzing CPU 0:
| driver: intel_cpufreq
…
from turbostat:
| CPUID(0): GenuineIntel 0xf CPUID levels
| CPUID(1): family:model:stepping 0x6:3f:4 (6:63:4) microcode 0x1a
| CPUID(0x80000000): max_extended_levels: 0x80000008
| CPUID(1): SSE3 MONITOR SMX EIST TM2 TSC MSR ACPI-TM HT TM
| CPUID(6): APERF, TURBO, DTS, PTM, No-HWP, No-HWPnotify, No-HWPwindow, No-HWPepp, No-HWPpkg, EPB
| cpu4: MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST MWAIT PREFETCH TURBO)
| CPUID(7): No-SGX No-Hybrid
This is v6.10.0-rc1.
Sebastian
next reply other threads:[~2024-05-29 15:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-29 15:57 Sebastian Andrzej Siewior [this message]
2024-05-29 23:08 ` intel_pstate_get_hwp_cap on wrong CPU srinivas pandruvada
2024-05-31 11:02 ` Sebastian Andrzej Siewior
2024-05-31 11:56 ` srinivas pandruvada
2024-05-31 14:01 ` Sebastian Andrzej Siewior
2024-05-31 22:27 ` srinivas pandruvada
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