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Re: Real-time operation of Mach microkernel?

From: olafBuddenhagen
Subject: Re: Real-time operation of Mach microkernel?
Date: Sun, 4 Sep 2011 06:09:28 +0200
User-agent: Mutt/1.5.21 (2010-09-15)


On Thu, Jul 21, 2011 at 10:37:54AM +0200, Richard Braun wrote:
> On Mon, Jul 18, 2011 at 03:58:40PM -0400, John Wason wrote:

> > I am a robotics engineer and find Hurd's design interesting.  It is  
> > difficult to run robotic software on a full operating system because the  
> > kernel is way to complicated to specialize for a real-time robot system.  
> > Real-time linux does exist, but you still end up dealing with all the 
> > complexity of linux at the low-level control loop.  Are there any plans 
> > for doing a real-time version of the Mach kernel?

> First, don't confuse Mach and the Hurd, what you're asking has actually
> little to do with the latter.

I think John's point is that if Hurd used a RT-enabled version of Mach,
he could run his RT processes at a low level in parallel to the normal
Hurd stack, which would provide any necessary higher-level
functionality. That would be pretty much the same as DROPS does with L4
and L4Linux. IMHO a rather interesting area for Hurd development --
though I guess we can't do much more than providing guidance in this


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