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Re: [gpsd-dev] Major progress!


From: Eric S. Raymond
Subject: Re: [gpsd-dev] Major progress!
Date: Mon, 9 Feb 2015 19:31:12 -0500
User-agent: Mutt/1.5.23 (2014-03-12)

Hal Murray <address@hidden>:
> scons check doesn't work if an older gpsd is running.
> 
> ...
> Processing test/daemon/GPSmap-76S.log
> gpsd:ERROR: shmget(1196446532, 8060, 0666) failed: Invalid argument
> gpsd:ERROR: shared-segment creation failed,
> Processing test/daemon/ac12.log
> gpsd:ERROR: shmget(1196446532, 8060, 0666) failed: Invalid argument
> gpsd:ERROR: shared-segment creation failed,
> ...
> 
> The real problem is that it's trying to stomp on something gpsd is using.  
> The errors above are just the symptom.

Right.  If the segments were the same size you wouldn't have this problem.
It's only going to come up in the wake of a change that breaks compatibility
with older versions of struct gps_device_t.

The correct answer is "Don't do that, then!"
-- 
                <a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>



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