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SubjectRe: netpoll trapped question
Date
Jeff Moyer <jmoyer@redhat.com> wrote:
>
> mpm> Yes, true. But we're still in trouble if we have nic irq handler ->
> mpm> take private lock -> printk -> netconsole -> nic irq handler -> take
> mpm> private lock. See?
>
> Okay, so that one has to be addressed on a per-driver basis. There's no
> way for us to detect that situation. And how do drivers address this?
> Simply don't printk inside the lock? I think that's reasonable.

Why not queue the message whenever you're in IRQ context, and only
print when you are not?
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