On Thu, Jan 8, 2009 at 9:03 AM, Roman V. Shaposhnik <r...@sun.com> wrote:
> 1. are the ones starting from underscore totally deprecated?

No.  Many are still minimally supported, so that it is
possible to run simple pre-9P2000 binaries (for example,
out of the dump).

> 2. what's the use for sysr1?

Sysr1 is whatever you want it to be.
During kernel hacking, it's often useful
to be define it to do some kind of
debugging action, like toggle extra
checking or output.  It has no assigned
purpose.

Russ

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