with intrsta I see only cpu#6 is getting interrupted...
device | cpu0 %tim cpu1 %tim cpu2 %tim cpu3 %tim cpu4
%tim cpu5 %tim cpu6 %tim
-------------+---------------------------------------------------------------------------------------------------------
asy#0 | 0 0.0 0 0.0 0 0.0 0 0.0
0 0.0 0 0.0 0 0.0
ata#0 | 0 0.0 0 0.0 0 0.0 0 0.0
0 0.0 0 0.0 0 0.0
bnx#0 | 0 0.0 0 0.0 0 0.0 0 0.0
0 0.0 0 0.0 161 0.1
bnx#1 | 0 0.0 0 0.0 0 0.0 0 0.0
0 0.0 0 0.0 161 0.0
bnx#2 | 0 0.0 0 0.0 0 0.0 0 0.0
0 0.0 0 0.0 161 0.0
bnx#3 | 0 0.0 0 0.0 0 0.0 0 0.0
0 0.0 0 0.0 161 0.0
ehci#0 | 0 0.0 0 0.0 0 0.0 0 0.0
6 0.0 0 0.0 0 0.0
mfi#0 | 0 0.0 0 0.0 0 0.0 0 0.0
0 0.0 0 0.0 0 0.0
uhci#0 | 0 0.0 0 0.0 0 0.0 0 0.0
6 0.0 0 0.0 0 0.0
uhci#1 | 0 0.0 0 0.0 0 0.0 0 0.0
0 0.0 1 0.0 0 0.0
uhci#2 | 0 0.0 0 0.0 0 0.0 0 0.0
6 0.0 0 0.0 0 0.0
with mpstat (watch intr and ithr) shows all cpus getting interrupted but
interrupt threads running on cpu#6 making it >90% busy!
CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl
0 0 0 30585 39533 239 2961 43 376 332 0 586 0 38 0 62
1 0 0 36700 37833 0 2685 28 363 260 0 673 1 39 0 60
2 0 0 59668 33989 101 1162 11 67 638 0 1062 1 49 0 50
3 0 0 63068 33893 0 1156 12 44 376 0 1143 0 50 0 50
4 0 0 28862 38099 3 564 4 23 269 0 529 0 37 0 63
5 0 0 20677 39201 1 411 4 20 207 0 377 1 30 0 69
6 0 0 3480 47606 5717 67 14 7 513 0 119 0 92 0 8
7 0 0 51324 35368 0 1076 3 42 277 0 901 0 42 0 58
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