From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Andy Wingo Newsgroups: gmane.lisp.guile.bugs,gmane.lisp.guile.devel Subject: Re: exit & dynamic wind Date: Wed, 30 Mar 2011 23:43:10 +0200 Message-ID: References: <87fwqc3r1h.fsf@ossau.uklinux.net> <87mxkcfojs.fsf@ossau.uklinux.net> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: dough.gmane.org 1301521397 8677 80.91.229.12 (30 Mar 2011 21:43:17 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 30 Mar 2011 21:43:17 +0000 (UTC) Cc: bug-guile@gnu.org, Ian Price , guile-devel To: Neil Jerram Original-X-From: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Wed Mar 30 23:43:12 2011 Return-path: Envelope-to: guile-bugs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Q53AU-0007T0-ST for guile-bugs@m.gmane.org; Wed, 30 Mar 2011 23:43:11 +0200 Original-Received: from localhost ([127.0.0.1]:36889 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Q53AU-0000T0-9p for guile-bugs@m.gmane.org; Wed, 30 Mar 2011 17:43:10 -0400 Original-Received: from [140.186.70.92] (port=38006 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Q53AL-0000Oj-26 for bug-guile@gnu.org; Wed, 30 Mar 2011 17:43:02 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Q53AJ-00025W-Rf for bug-guile@gnu.org; Wed, 30 Mar 2011 17:43:00 -0400 Original-Received: from a-pb-sasl-sd.pobox.com ([64.74.157.62]:56187 helo=sasl.smtp.pobox.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q53AJ-00025S-OA; Wed, 30 Mar 2011 17:42:59 -0400 Original-Received: from sasl.smtp.pobox.com (unknown [127.0.0.1]) by a-pb-sasl-sd.pobox.com (Postfix) with ESMTP id 63A7449CE; Wed, 30 Mar 2011 17:44:48 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=pobox.com; h=from:to:cc :subject:references:date:in-reply-to:message-id:mime-version :content-type; s=sasl; bh=1eACH9EpEu5jE20Q3z3wpN3OVdk=; b=lKa7ze y8rF78FrfqS6S9rHmmMPMvBijZKBZxffBVbJKbfU3FM1ozT1JCP0x6aV5yoVq8Ob Ikx9yxCVYX+mVG2vJyfm1rMeaTgBU28jHFYZ9SbNeQf7onmvm2JWYJ/GT7ootXWy XK22E7+Rn6dK/31vdvOZMWBLdQFERO6UNGmCY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=pobox.com; h=from:to:cc :subject:references:date:in-reply-to:message-id:mime-version :content-type; q=dns; s=sasl; b=D/xqJptOIM8B4Y8EjvFEAj+wgaakVl1I emkY9Rvqer84L8c7Mvv8cQRtsDd6zFJJ4JQCR9winEqgdHAbg+oiKYlc/jpKw/3O r6PUaorwN4NPQZHI8GomuGqMOccATUNbFHXBv5PLs3+G8EVE3MUKRkG1Uaf6Mx5H wRwk7Say6Hk= Original-Received: from a-pb-sasl-sd.pobox.com (unknown [127.0.0.1]) by a-pb-sasl-sd.pobox.com (Postfix) with ESMTP id 2FFB149CD; Wed, 30 Mar 2011 17:44:44 -0400 (EDT) Original-Received: from unquote.localdomain (unknown [90.164.198.39]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by a-pb-sasl-sd.pobox.com (Postfix) with ESMTPSA id 1ED9149CC; Wed, 30 Mar 2011 17:44:39 -0400 (EDT) In-Reply-To: (Andy Wingo's message of "Wed, 30 Mar 2011 23:25:39 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) X-Pobox-Relay-ID: ECC8FCC2-5B16-11E0-8B17-E8AB60295C12-02397024!a-pb-sasl-sd.pobox.com X-detected-operating-system: by eggs.gnu.org: Solaris 10 (beta) X-Received-From: 64.74.157.62 X-BeenThere: bug-guile@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Bug reports for GUILE, GNU's Ubiquitous Extension Language" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Errors-To: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.bugs:5395 gmane.lisp.guile.devel:12099 Archived-At: On Wed 30 Mar 2011 23:25, Andy Wingo writes: > We didn't see this issue before because compiling eval.scm did not cause > a `throw'. Interesting, no? But since I changed the implementation of > ensure-writable-dir to one that probably throws, we see this error. Sorry, forgot to mention something else. ensure-writable-dir caused the build to see these errors. The patch under consideration -- allowing the stack to unwind during a throw to `quit' -- also exercised this case. I didn't understand it at the time, so I reverted and moved on. But then the ensure-writable-dir thing brought up the issue again, so thence the fix, so thence the ability to unwind the stack on a throw to `quit', even before eval.scm is compiled. This probably still isn't clear; please ask if you have more questions! Andy -- http://wingolog.org/