Messages in this thread | | | From | Feng Li <> | Date | Wed, 20 May 2020 16:49:43 +0800 | Subject | Re: [ISSUE] acpi_cpufreq is added and removed frequently |
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Oh, the trouble maker has been found. A background program call 'udevadm retrigger' periodically. Closed.
Feng Li <lifeng1519@gmail.com> 于2020年5月20日周三 下午2:47写道: > > Hi expert, > > I could see my CentOS7, `udevadm monitor` reports this log very fast: > > UDEV [14258.464055] change > /devices/LNXSYSTM:00/device:00/ACPI0004:01/LNXCPU:4d (acpi) > KERNEL[14258.464065] add /module/acpi_cpufreq (module) > KERNEL[14258.471130] remove /module/acpi_cpufreq (module) > UDEV [14258.473672] change > /devices/LNXSYSTM:00/device:00/ACPI0004:01/LNXCPU:4a (acpi) > KERNEL[14258.473684] add /module/acpi_cpufreq (module) > KERNEL[14258.482001] remove /module/acpi_cpufreq (module) > UDEV [14258.485059] change > /devices/LNXSYSTM:00/device:00/ACPI0004:01/LNXCPU:4f (acpi) > KERNEL[14258.485070] add /module/acpi_cpufreq (module) > KERNEL[14258.495195] remove /module/acpi_cpufreq (module) > > > What's wrong with the system? > > OS: CentOS 7.6 > Kernel: 3.10.0-1062.1.2.el7 / kernel-4.18.0-147 > > [root@67_95 14:46:21 ~]$lscpu > Architecture: x86_64 > CPU op-mode(s): 32-bit, 64-bit > Byte Order: Little Endian > CPU(s): 16 > On-line CPU(s) list: 0-15 > Thread(s) per core: 2 > Core(s) per socket: 4 > Socket(s): 2 > NUMA node(s): 2 > Vendor ID: GenuineIntel > CPU family: 6 > Model: 85 > Model name: Intel(R) Xeon(R) Gold 5122 CPU @ 3.60GHz > Stepping: 4 > CPU MHz: 3677.124 > CPU max MHz: 3700.0000 > CPU min MHz: 1200.0000 > BogoMIPS: 7200.00 > Virtualization: VT-x > L1d cache: 32K > L1i cache: 32K > L2 cache: 1024K > L3 cache: 16896K > NUMA node0 CPU(s): 0,2,4,6,8,10,12,14 > NUMA node1 CPU(s): 1,3,5,7,9,11,13,15 > Flags: fpu vme de pse tsc msr pae mce cx8 apic sep > mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht > tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs > bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni > pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 > xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt > tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch > epb cat_l3 cdp_l3 invpcid_single intel_ppin intel_pt ssbd mba ibrs > ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust > bmi1 hle avx2 smep bmi2 erms invpcid rtm cqm mpx rdt_a avx512f > avx512dq rdseed adx smap clflushopt clwb avx512cd avx512bw avx512vl > xsaveopt xsavec xgetbv1 cqm_llc cqm_occup_llc cqm_mbm_total > cqm_mbm_local dtherm ida arat pln pts pku ospke spec_ctrl intel_stibp > flush_l1d > > Any tips? > Thanks in advance.
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