On Wed, Oct 26, 2011 at 06:08:12PM +0200, Michael Holzheu wrote: > 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? I don't know. Sounds like a bug. I have never looked into it. CCing Kay, if he has any thoughts. Are any events generated for memory add? Thanks Vivek