[PCA] ksoftirqd Shows 100% on PCA Management Nodes

(Doc ID 2386475.1)

Last updated on MAY 09, 2018

Applies to:

Private Cloud Appliance - Version 2.3.1 and later
Linux x86-64

Symptoms

ksoftirqd shows 100% on PCA Management Nodes. This can be observed in from top.

top - 15:04:19 up 6 days, 20:25, 1 user, load average: 0.00, 0.01, 0.05
Tasks: 957 total, 1 running, 954 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.3%sy, 0.0%ni, 94.1%id, 0.0%wa, 0.0%hi, 5.6%si, 0.0%st
Mem: 263733836k total, 41768948k used, 221964888k free, 240988k buffers
Swap: 2097148k total, 0k used, 2097148k free, 26980412k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
51 root 20 0 0 0 0 R 100.0 0.0 9848:21 ksoftirqd/6
79 root 20 0 0 0 0 R 100.0 0.0 4306:44 ksoftirqd/10
114 root 20 0 0 0 0 R 100.0 0.0 4303:53 ksoftirqd/15
121 root 20 0 0 0 0 R 100.0 0.0 9844:00 ksoftirqd/16

 

 

Changes

 There may have been a network change on the upstream data-center switches or additional links added to the PCA.

Cause

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