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Re: GENERIC and DDB



At Fri, 19 Jun 2009 00:53:25 +0900, Izumi Tsutsui 
<tsutsui%ceres.dti.ne.jp@localhost> wrote:
Subject: Re: GENERIC and DDB
> 
> >    > From: Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>
> >    > 
> >    > Is there any reason why GENERIC on sparc doesn't include options DDB?
> >    > Most other ports have it in their GENERIC-like kernels.
> >    
> >    I believe it was originally so that break or L1+A would drop into the 
> > prom 
> >    (similar to Solaris) and not DDB. I suspect DDB may make more sense 
> > now...
> > 
> > 
> > as i recall, most platforms didn't have DDB many years ago and sparc
> > just has never updated to the newer default...
> 
> Okay, if there is no objection I'll enable options DDB in GENERIC
> in a few days.

I've had DDB in my sparc kernels for nearly forever now with good
result.

It should be noted too that DDB has a "machine prom" command (at least
on SPARC and other similarly well designed machines) which can easily be
used to drop directly back to the PROM for those that wish to do so.

-- 
                                                Greg A. Woods
                                                Planix, Inc.

<woods%planix.com@localhost>       +1 416 218-0099        http://www.planix.com/

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