--
On Mon, 8 Oct 2007, Gregory Haskins wrote:
>
> Hi Steve,
> What you describe is exactly what I did. The IRQF_NODELAY handler
> just minimally checks to see if the character is a sysrq related one (or
> KDB, if you have the KDB patches applied). If it is not, it puts the
> character into a ring-buffer and wakes a (kthread-based) tasklet to do
> the normal serial/tty rx path by processing the ring.
Ah, that was in the second patch (I didn't look at that. My fault). I
didn't see this description in the comments. But you are right, it is very
close to what I did too. But before we add this to -rt, it will need to
probably need to be tested quite a bit more. Especially since this is more
to help us developers than to help end users.
I would like to see something like this eventually make it into RT. Just
because there has been too many times that this would be useful. For now I
just use the NMI watchdog and soft lockup detect. But those are very
limiting.
>
> Hope that helps to clarify.
Yes, thanks!
-- Steve
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