>>>>> "MM" == Matt Mackall <[email protected]> writes:
MM> Well there are things we can do, yes, but I'd be worried that
MM> they've give up the deterministic behavior we rely on quite
MM> heavily for debugging. If event A happens before event B, we must
MM> see the message from A before the one from B, even if B happens in
MM> irq context.
MM> And if event B is a hard lock up, we'd also like to be sure the
MM> message for A actually gets out. If B happens in the interrupt
MM> that comes in when we re-enable them, that won't happen.
I can see the concerns, but right now it all leads to disabling serial
console for real-time servers. That is even less helpful for
debugging.
/Benny
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