From: ebiederm@xmission.com (Eric W. Biederman)
Date: Tue, 04 Mar 2014 16:03:43 -0800

So I would like some clear guidance.  Will you accept patches to make
it safe to call the napi poll routines from hard irq context, or should
we simply defer messages prented with netconsole in hard irq context
into another context where we can run the napi code?

If there is not a clear way to fix the problems that crop up we should
just delete all of the netpoll code altogether, as it seems deadly in
it's current form.

Clearly to make netconsole most useful we should synchronously emit
log messages.

Because what if the system hangs right after this event, but before
we get back to a "safe" context.

That's one bug that will be a billion times harder to diagnose if
we defer.