[M3devel] cvsup crash

[Olaf Wagner]

Quoting Jay K <jay.krell at cornell.edu>:

>  > It is certainly worth fixing bugs exposed by cvsup.  It used to   
> run.  Why does it not run now?  Has there been regression in the CM3  
>  implementation?
>
> Very little is known. I don't think we should be so quick to assume   
> a regression in cm3.
> For example, cvsup only recently was ever made to work with non-userthreads.
> And this version has seen extremely little use. Perhaps it never   
> actually worked with non-user threads.
> It previously depended on all threads surviving fork().

The server uses fork. The client doesn't. The problem reported here
is on the client side.

> Bugs could easily be in cvsup itself.

Well, it used to run without problems and is still replicating the
CM3 repository regularly to several sites (in an older version).
So I think it is likely that we introduced the bugs recently.

> As well, don't we know that Trestle has forever had several race conditions?
> Having recently fixed a few?
>
> It's been my experience that the less something is used, the more   
> bugs it has..
> Modula-3 * cvsup + trestle...

The GUI may be disabled with the -g parameter, IIRC.

Olaf

> From: hosking at cs.purdue.edu
> Date: Mon, 6 Sep 2010 22:26:45 -0400
> To: jay.krell at cornell.edu
> CC: m3devel at elegosoft.com; hendrik at topoi.pooq.com
> Subject: Re: [M3devel] cvsup crash
>
>
> It is certainly worth
>
>
> On 6 Sep 2010, at 20:23, Jay K wrote:
>
> I don't know cvsup.
> Given how poor cvs is in the first place, and how many promising   
> alternatives there are now,
> it seems a waste to invest in learning to use cvsup, or spending   
> much time debugging it and fixing it.
> But maybe we'll get it working.
>
> It is certainly worth fixing bugs exposed by cvsup.  It used to run.  
>   Why does it not run now?  Has there been regression in the CM3   
> implementation?
-- 
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