kdump: No udev events for memory hotplug?

[Michael Holzheu]

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


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