How to force Linux to crash:
we installed the kexec-tools (kdump) on our redhat machines ( version 7.1 ) in order to capture problems by creating core file under /var/crash folder
we check that kdump is install as
rpm -qa | grep kexec ( verify rpm kdump is installed )
kexec-tools-2.0.7-19.el7_1.2.x86_64
we check the kdump service as
# /usr/bin/kdumpctl status
Kdump is operational
we manually trigger the core dump using the following commands:
echo 1 > /proc/sys/kernel/sysrq
echo c > /proc/sysrq-trigger
The server should be reboot itself and the crash dump will be generated. Under /var/crash
bot nothing was happend
please advice way kdump not trigger the linux machine to reboot?
redhat doc about the KDUMP:
more /etc/redhat-release
Red Hat Enterprise Linux Server release 7.1 (Maipo)
dmidecode | grep -i VM
Manufacturer: VMware, Inc.
Product Name: VMware Virtual Platform