Hello Vivek and Eric, I noticed that on my system kernel 3.1 *no* udev events for memory hotplug are generated. Same on my RHEL6.1. # udevadm monitor # echo offline > /sys/devices/system/memory/memory4/state -> No event But we need the udev events in order to do a kdump reload for setting up the ELF loads correctly. In my /etc/udev/rules.d/98-kexec.rules there are rules for memory hotplug: SUBSYSTEM=="memory", ACTION=="add", PROGRAM="/etc/init.d/kdump restart" SUBSYSTEM=="memory", ACTION=="remove", PROGRAM="/etc/init.d/kdump restart" Perhaps/probably I am missing something? Michael
