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Subject67 kworker threads ?
From
I have kernel v3.4.0 up & running over 2 weeks on a 4-cores typical
lenovo laptop,
with suspend & resume only, every day; have just found after a resume the kernel
may spawn too many kworker threads, totally 67 kworker threads now,
I think this is abnormal

$ ps fu -e |awk 'NR <=2 || /[k]worker/'
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 2 0.0 0.0 0 0 ? S Jun07 0:00 [kthreadd]
root 10271 0.0 0.0 0 0 ? S 11:35 0:00 \_
[kworker/0:3]
root 11683 0.0 0.0 0 0 ? S 11:46 0:00 \_
[kworker/u:0]
root 14364 0.0 0.0 0 0 ? S 12:08 0:01 \_
[kworker/0:0]
root 14965 0.1 0.0 0 0 ? S 12:13 0:03 \_
[kworker/u:1]
root 17154 0.0 0.0 0 0 ? S 12:31 0:00 \_
[kworker/u:2]
root 17937 0.0 0.0 0 0 ? S 12:38 0:00 \_
[kworker/u:3]
root 18286 0.0 0.0 0 0 ? S 12:39 0:00 \_
[kworker/u:4]
root 18287 0.0 0.0 0 0 ? S 12:39 0:00 \_
[kworker/u:5]
root 18288 0.0 0.0 0 0 ? S 12:39 0:00 \_
[kworker/u:6]
root 18289 0.0 0.0 0 0 ? S 12:39 0:00 \_
[kworker/u:7]
root 18290 0.0 0.0 0 0 ? S 12:39 0:00 \_
[kworker/u:8]
root 18291 0.0 0.0 0 0 ? S 12:39 0:00 \_
[kworker/u:9]
root 18292 0.0 0.0 0 0 ? S 12:39 0:00 \_
[kworker/u:10]
root 18300 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/1:2]
root 18303 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/2:2]
root 18306 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/3:0]
root 18320 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:11]
root 18321 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:12]
root 18322 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:13]
root 18323 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:14]
root 18324 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:15]
root 18325 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:16]
root 18326 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:17]
root 18327 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:18]
root 18328 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:19]
root 18329 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:20]
root 18330 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:21]
root 18331 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:22]
root 18332 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:23]
root 18333 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:24]
root 18334 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:25]
root 18335 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:26]
root 18336 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:27]
root 18337 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:28]
root 18338 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:29]
root 18339 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:30]
root 18340 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:31]
root 18341 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:32]
root 18342 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:33]
root 18343 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:34]
root 18344 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:35]
root 18345 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:36]
root 18346 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:37]
root 18347 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:38]
root 18348 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:39]
root 18349 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:40]
root 18350 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:41]
root 18351 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:42]
root 18352 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:43]
root 18353 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:44]
root 18354 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:45]
root 18355 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:46]
root 18356 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:47]
root 18357 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:48]
root 18358 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:49]
root 18359 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:50]
root 18360 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:51]
root 18361 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:52]
root 18362 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:53]
root 18363 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:54]
root 18364 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:55]
root 18365 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:56]
root 18366 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:57]
root 18367 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:58]
root 18368 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/u:59]
root 18369 0.9 0.0 0 0 ? S 13:05 0:01 \_
[kworker/3:1]
root 18370 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/0:1]
root 18374 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/0:2]
root 18380 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/1:0]
root 18393 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/2:0]
root 18506 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/3:2]
root 18571 0.0 0.0 0 0 ? S 13:05 0:00 \_
[kworker/2:1]


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