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[Gcl-devel] Re: P.S. on address@hidden: GCL 2.6.8 release]

From: Camm Maguire
Subject: [Gcl-devel] Re: P.S. on address@hidden: GCL 2.6.8 release]
Date: 14 Jul 2006 20:40:24 -0400
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2


Matt Kaufmann <address@hidden> writes:

> Hi again --
> I'm running into odd errors again, this time with /p/bin/gcl-2.6.8pre.  For
> example:
> [SGC off]
> Error: Caught fatal error [memory may be damaged]
> Of course, that could be ACL2 code's fault.  But this time, every time I did
> (si::sgc-on nil), the problem went away.  So I'm guessing there's an SGC
> problem.

I also suspect sgc-off in particular at core expansion time.

> Let me know if you want me to set up a directory at UT with the error.

Yes please, and an easy reproducing command if possible.

> In the meantime, I'm thinking of sending an email to the ACL2 mailing list
> suggesting that if people get strange errors with GCL, then try (si::sgc-on
> nil).  If you prefer something different, let me know; otherwise I imagine 
> I'll
> send out the note on Monday.

A good idea.

I'd like to fix this before releasing 2.6.8 if possible.

Take care,

> Thanks --
> -- Matt
> From: Matt Kaufmann <address@hidden>
> Subject: GCL 2.6.8 release
> To: address@hidden
> Date: 13 Jul 2006 21:29:02 -0500
> Hi, Camm --
> Thank you for your recent emails.  I hope to absorb them (especially the one
> about mutual-recursion) soon; I'm away this week.
> A couple of days ago, I ran a regression on the development copy of ACL2 built
> on GCL 2.6.7, and got strange errors in certification of a particular file.
> Fortunately, the regression passed using the GCL 2.6.8pre you built at UT
> (/p/bin/gcl-2.6.8pre), and for that matter, Allegro CL.  (Sorry... I didn't
> save the errors.  But some were very low level; something about "plist".)
> Anyhow, I'm guessing that I simply exposed a GCL 2.6.7 problem that's been
> fixed in GCL 2.6.8.  So I'm wondering: Might you be releasing GCL 2.6.8 soon?
> It would be great if ACL2 releases would run fine on an existing, recent GCL.
> I might want to do an ACL2 incremental release late next week.
> Thanks --
> - -- Matt
> ----------

Camm Maguire                                            address@hidden
"The earth is but one country, and mankind its citizens."  --  Baha'u'llah

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