Hi!

After reading about fence_kdump and fence_kdump_send I wonder:
Does anybody use that in production?
Having the networking and bonding in initrd does not sound like a good idea to 
me.
Wouldn't it be easier to integrate that functionality into sbd?
I mean: Let sbd wait for a "kdump-ed" message that initrd could send when kdump 
is complete.
Basically that would be the same mechanism, but using storage instead of 
networking.

If I get it right, the original fence_kdump would also introduce an extra 
fencing delay, and I wonder what happens with a hardware watchdog while a kdump 
is in progress...

The background of all this is that our nodes kernel-panic, and support says the 
kdumps are all incomplete.
The events are most likely:
node1: panics (kdump)
other_node: seens node1 had failed and fences it (via sbd).

However sbd fencing wont work while kdump is executing (IMHO)

So what happens most likely is that the watchdog terminates the kdump.
In that case all the mess with fence_kdump won't help, right?

Regards,
Ulrich




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