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kernel:BUG: soft lockup - CPU#19 stuck for

Question asked by ilyass.togui on Jan 18, 2016
Latest reply on Jan 19, 2016 by Rick.Brown
Hi guys,


I used to install LISA devtest 9.0 on Linux Ubuntu, Java 7. I have just started to pass to Linux Redhat 7.1 and Java 8 and I have this bug:
kernel:BUG: soft lockup - CPU#19 stuck for 23s! [java:25236]
java:25236 is a LISA process (as the picture below)
Sans titre.png
Sans titre.jpg

My server stopped running right after

I would like to know if this problem comes from a LISA bug. FYI, our server has 20 CPUs and 32Gb RAM. Our network administrator told that the bug can't come from OS or Hardware...


Architecture: x86_64

CPU op-mode(s):        32-bit, 64-bit

Byte Order:            Little Endian

CPU(s): 20

On-line CPU(s) list:   0-19

Thread(s) per core:    1

Core(s) per socket:    1

Socket(s): 20

NUMA node(s):          2

Vendor ID: GenuineIntel

CPU family:            6

Model: 63

Model name: Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz

Stepping: 2

CPU MHz: 2297.339

BogoMIPS: 4594.67

Hypervisor vendor:     VMware

Virtualization type:   full

L1d cache: 32K

L1i cache: 32K

L2 cache: 256K

L3 cache: 46080K

NUMA node0 CPU(s):     0-9

NUMA node1 CPU(s):     10-19


Thanks in advance