What changes do I need to make to kdump configuration to ensure successful operation on a Huawei KunLun 9016 system?

Solution Verified - Updated -

Environment

  • Huawei KunLun 9016 system
  • Red Hat Enterprise Linux 6.6 or newer

Issue

Kdump may not perform as expected when using the default parameters on a Huawei KunLun 9016 system.

Resolution

Two changes are needed to ensure proper kdump functionality:

  1. On the kernel boot line in the grub configuration file, use the parameter "crashkernel=512M".

  2. Modify the KDUMP_COMMANDLINE_APPEND line in the /etc/sysconfig/kdump file as follows:

KDUMP_COMMANDLINE_APPEND="irqpoll nr_cpus=4 disable_cpu_apicid=0 reset_devices cgroup_disable=memory mce=off"

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