VMS driver reloading/unloading, was: Re: hostunavailable

On 2012-06-02, Johnny Billquist <bqt@xxxxxxxxxx> wrote:
On 2012-06-01 08:47, Paul Sture wrote:

That reminds me of the ability of RSX (and IIRC RT-11) to unload device
drivers. That was a feature that I missed in VMS.

I thought VMS could. Another bad assumption on my part, based on my RSX
experience then... I've done too little kernel hacking in VMS obviously. :-)

Hmm. Device driver loading in VMS is done through SYSGEN, right? There
is no unload command in there?


SYSGEN (used on VAX) has a reload command, but I've never used it.

SYSMAN (used on Alpha/IA64) does not appear to have the same capability
(which I could have used when, years ago, I was still writing VMS Alpha
drivers.)

Neither appears to have a simple unload capability.

Another thing to be fixed in any VMS rewrite. :-)

Simon.

--
Simon Clubley, clubley@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Microsoft: Bringing you 1980s technology to a 21st century world
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