This Blog is to share our knowledge and expertise on Linux System Administration and VMware Administration

Sunday, November 12, 2017

BUG: soft lockup - CPU#0 stuck for 10s!

•Soft lockups are situations in which the kernel's scheduler  subsystem has not been given a chance to perform its job for more than  10 seconds; they can be caused by defects in the kernel, by hardware  issues or by extremely high workloads.

Run following command and check whether you still encounter these "soft lockup" errors on the system:

# sysctl -w kernel.softlockup_thresh=30

To make this parameter persistent across reboots by adding following line in /etc/sysctl.conf file:


Note: The softlockup_thresh kernel parameter was introduced in Red Hat Enterprise Linux 5.2 in kernel-2.6.18-92.el5 thus it is not possible to modify this on older versions

No comments:

Post a Comment