Experimental Physics and
Industrial Control System

On Aug 5, 2010, at 12:52 PM, Andrew Johnson wrote:

> On Thursday 05 August 2010 14:11:53 Ralph Lange wrote:
>> Why would you let people log into IOCs?
> 
> Speed?  9600 baud is rather slow nowadays.
> 
> Also recent versions of vxWorks 6.x support running multiple target shells at 
> the same time, but I should warn anyone who tries this that the EPICS shell 
> commands were not written to expect that to be possible, and may have major 
> issues with deadlocks or unprotected accesses.  I believe the IOC shell is 
> reentrant, but I'm not sure if it's thread-safe.

As far as I know, the IOC shell itself is thread-safe but ,as Andrew points out, the functions that it calls may not be.
> 
> In general therefore I agree with Ralph that using serial consoles is still 
> probably a better solution.

Indeed.

-- 
Eric Norum
[email protected]

References:

VxWorks and Radius Authentication Gary Carr

Re: VxWorks and Radius Authentication Ralph Lange

Re: VxWorks and Radius Authentication Andrew Johnson

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