On Tue, Mar 16, 2021 at 04:45:02PM +0100, Jiri Olsa wrote: > hi, > when running 'perf top' on AMD Rome (/proc/cpuinfo below) > with fedora 33 kernel 5.10.22-200.fc33.x86_64 > > we got unknown NMI messages: > > [ 226.700160] Uhhuh. NMI received for unknown reason 3d on CPU 90. > [ 226.700162] Do you have a strange power saving mode enabled? > [ 226.700163] Dazed and confused, but trying to continue > [ 226.769565] Uhhuh. NMI received for unknown reason 3d on CPU 84. > [ 226.769566] Do you have a strange power saving mode enabled? > [ 226.769567] Dazed and confused, but trying to continue > [ 226.769771] Uhhuh. NMI received for unknown reason 2d on CPU 24. > [ 226.769773] Do you have a strange power saving mode enabled? > [ 226.769774] Dazed and confused, but trying to continue > [ 226.812844] Uhhuh. NMI received for unknown reason 2d on CPU 23. > [ 226.812846] Do you have a strange power saving mode enabled? > [ 226.812847] Dazed and confused, but trying to continue > [ 226.893783] Uhhuh. NMI received for unknown reason 2d on CPU 27. > [ 226.893785] Do you have a strange power saving mode enabled? > [ 226.893786] Dazed and confused, but trying to continue > [ 226.900139] Uhhuh. NMI received for unknown reason 2d on CPU 40. > [ 226.900141] Do you have a strange power saving mode enabled? > [ 226.900143] Dazed and confused, but trying to continue > [ 226.908763] Uhhuh. NMI received for unknown reason 3d on CPU 120. > [ 226.908765] Do you have a strange power saving mode enabled? > [ 226.908766] Dazed and confused, but trying to continue > [ 227.751296] Uhhuh. NMI received for unknown reason 2d on CPU 83. > [ 227.751298] Do you have a strange power saving mode enabled? > [ 227.751299] Dazed and confused, but trying to continue > [ 227.752937] Uhhuh. NMI received for unknown reason 3d on CPU 23. > > also when discussing ths with Borislav, he managed to reproduce easily > on his AMD Rome machine > > any idea?
Kim is the AMD point person for this I think.. > > thanks, > jirka > > > --- > processor : 0 > vendor_id : AuthenticAMD > cpu family : 23 > model : 49 > model name : AMD EPYC 7742 64-Core Processor > stepping : 0 > microcode : 0x8301034 > cpu MHz : 1497.024 > cache size : 512 KB > physical id : 0 > siblings : 64 > core id : 0 > cpu cores : 64 > apicid : 0 > initial apicid : 0 > fpu : yes > fpu_exception : yes > cpuid level : 16 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca > cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt > pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid > aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt > aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a > misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core > perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate sme ssbd mba > sev ibrs ibpb stibp vmmcall sev_es fsgsbase bmi1 avx2 smep bmi2 cqm rdt_a > rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc > cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf xsaveerptr rdpru > wbnoinvd arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid > decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif umip rdpid > overflow_recov succor smca > bugs : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass > bogomips : 4491.76 > TLB size : 3072 4K pages > clflush size : 64 > cache_alignment : 64 > address sizes : 43 bits physical, 48 bits virtual > power management: ts ttp tm hwpstate cpb eff_freq_ro [13] [14] >
