Interrupt API change
Poul-Henning Kamp
phk at phk.freebsd.dk
Sat Jan 10 06:15:30 PST 2004
In message <20040111005502.O22604 at gamplex.bde.org>, Bruce Evans writes:
>> Heuristics
>> can then be built on this information to better detect things like
>> interrupt storms.
>
>That'a about all it can do.
Considering the fatality of interrupt storms, this alone is reason
enough to implement the change.
>In the non-shared case,
>individual handlers can better decide about interrupt storms in a
>device-specific way.
Considering that interrupt storms more often than not are caused
by driver bugs, expecting the driver to mitigate seems terminally
optimistic to me.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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