Propose for Several Dump types

[Poul-Henning Kamp]

In message <cd4370cf04121323433255da9d at mail.gmail.com>, Jun Su writes:

>MiniDump
>=======
>In a minidump, Register info, plus the crash stack is enough.

Make it an EVENTHANDLER() and dump it in ascii format.

That way any kernel subsystem can hook in a function and dump
potentially relevant information.

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Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
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