https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198149
--- Comment #7 from ganb...@gmail.com ---
I tried to reproduce it with asterisk in same multicore machine and put some
load on asterisk:
last pid: 1296; load averages: 7.44, 5.22, 3.17
up
0+00:28:00 12:01:12
51 processes: 2 running, 49 sleeping
CPU: 31.9% user, 0.0% nice, 21.8% system, 1.8% interrupt, 44.5% idle
Mem: 300M Active, 443M Inact, 252M Wired, 90M Buf, 6933M Free
Swap: 16G Total, 16G Free
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
1275 root 1059 20 0 1472M 584M select 3 14:30 217.48% asterisk
1280 root 1 24 0 33100K 12692K CPU3 3 0:06 1.27% pmcstat
721 tsgan 1 20 0 86488K 7060K select 7 0:03 0.00% sshd
And I still see pmcstat shows in top mode:
PMC: [CPU_CLK_UNHALTED_CORE] Samples: 24904 (100.0%) , 2906 unresolved
%SAMP IMAGE FUNCTION CALLERS
7.0 kernel _mtx_lock_spin_cooki pmclog_reserve:6.4 sched_add:0.6
3.4 kernel __mtx_lock_sleep umtxq_sleep:1.3
__umtx_op_wake2_umutex:1.2 do_lock_umutex:0.6
3.3 libgsm.so. 0xad72 Gsm_Short_Term_Synthesis_Filt
2.4 kernel cpu_search_lowest cpu_search_lowest
2.3 libgsm.so. 0xad37 Gsm_Short_Term_Synthesis_Filt
1.8 libgsm.so. 0xad19 Gsm_Short_Term_Synthesis_Filt
1.6 libgsm.so. 0xad30 Gsm_Short_Term_Synthesis_Filt
1.6 libgsm.so. 0xad69 Gsm_Short_Term_Synthesis_Filt
1.6 libgsm.so. 0xace7 Gsm_Short_Term_Synthesis_Filt
1.4 libgsm.so. Gsm_Decoder gsm_decode
1.3 libgsm.so. 0xad53 Gsm_Short_Term_Synthesis_Filt
1.3 libgsm.so. Gsm_Long_Term_Synthe Gsm_Decoder
1.2 hwpmc.ko pmc_hook_handler sched_switch
1.1 libgsm.so. 0xad4b Gsm_Short_Term_Synthesis_Filt
1.1 codec_ulaw lintoulaw_framein
1.0 libgsm.so. Gsm_Short_Term_Synth Gsm_Decoder
1.0 kernel Xrendezvous
1.0 libgsm.so. 0xad33 Gsm_Short_Term_Synthesis_Filt
1.0 libgsm.so. 0xad3f Gsm_Short_Term_Synthesis_Filt
1.0 libgsm.so. 0xace0 Gsm_Short_Term_Synthesis_Filt
1.0 libgsm.so. 0xacb0 Gsm_Short_Term_Synthesis_Filt
0.9 libgsm.so. 0xacca Gsm_Short_Term_Synthesis_Filt
0.9 kernel do_lock_umutex __umtx_op_wait_umutex
0.9 libgsm.so. 0xacef Gsm_Short_Term_Synthesis_Filt
0.9 libgsm.so. 0xad11 Gsm_Short_Term_Synthesis_Filt
0.8 libgsm.so. 0xad00 Gsm_Short_Term_Synthesis_Filt
0.8 kernel amd64_syscall
0.8 kernel in_pcbconnect_setup udp_send
0.8 libgsm.so. 0xacfa Gsm_Short_Term_Synthesis_Filt
0.8 libgsm.so. 0xad06 Gsm_Short_Term_Synthesis_Filt
0.7 libgsm.so. Gsm_RPE_Decoding Gsm_Decoder
0.7 kernel thread_lock_flags_
0.7 libc.so.7 memcpy
0.6 kernel __umtx_op_wake2_umut amd64_syscall
0.6 kernel __rw_rlock
0.6 libgsm.so. 0xad43 Gsm_Short_Term_Synthesis_Filt
...
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