From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Andy Wingo Newsgroups: gmane.lisp.guile.bugs Subject: bug#25387: guile-2.2 multi-thread segfault in SCM_VALIDATE_WEAK_TABLE Date: Wed, 11 Jan 2017 22:24:03 +0100 Message-ID: <87mvex8f4c.fsf@pobox.com> References: <87tw97999p.fsf@pobox.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1484169931 19833 195.159.176.226 (11 Jan 2017 21:25:31 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 11 Jan 2017 21:25:31 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) Cc: 25387-done@debbugs.gnu.org To: Linas Vepstas Original-X-From: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Wed Jan 11 22:25:23 2017 Return-path: Envelope-to: guile-bugs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cRQOR-0003kn-Va for guile-bugs@m.gmane.org; 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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=XTafDDk1NjoUb/5XkxqsKOoDlI6+W7wT D7bBqHmzO3QT4pjKdTllEgiWoMLuzQ+xLdSmxpXxvENoQ2+z8QTZo5n3w1uMpRFx brPmgp3rzI4+PCkwD9UhWm0nNreRctGshCa9gABQYDV0DKdiFqnartoTRgJQq/9F 96On6qi0MEQ= Original-Received: from pb-sasl1.nyi.icgroup.com (unknown [127.0.0.1]) by pb-sasl1.pobox.com (Postfix) with ESMTP id 2EB2156A9B; Wed, 11 Jan 2017 16:24:13 -0500 (EST) Original-Received: from clucks (unknown [88.160.190.192]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pb-sasl1.pobox.com (Postfix) with ESMTPSA id F32A656A9A; Wed, 11 Jan 2017 16:24:11 -0500 (EST) In-Reply-To: <87tw97999p.fsf@pobox.com> (Andy Wingo's message of "Mon, 09 Jan 2017 23:08:18 +0100") X-Pobox-Relay-ID: 4BE98C84-D844-11E6-B4CB-CDEC6462E9F6-02397024!pb-sasl1.pobox.com X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-guile@gnu.org List-Id: "Bug reports for GUILE, GNU's Ubiquitous Extension Language" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Original-Sender: "bug-guile" Xref: news.gmane.org gmane.lisp.guile.bugs:8517 Archived-At: On Mon 09 Jan 2017 23:08, Andy Wingo writes: > On Sun 08 Jan 2017 01:18, Linas Vepstas writes: > >> Following program crashes immediately (fraction of a second) >> in guile-2.2, current git version (as of 29 Dec 2016 >> a0656ad4cf976b3845e9b9663a90b46b4cf9fc5a ) > > Nice bug, thank you! I will have a look. Fixed in master, I think. Have a look! commit 63bf6ffa0d3cdddf8151cc80ac18fe5dfb614587 Author: Andy Wingo Date: Wed Jan 11 22:17:24 2017 +0100 Protect call-with-new-thread data from GC. * libguile/threads.c (struct launch_data): Add prev/next pointers. (protected_launch_data, protected_launch_data_lock): New static vars. (protect_launch_data, unprotect_launch_data): New functions. (really_launch, scm_sys_call_with_new_thread): Preserve launch data from GC. Thanks to Linas Vepstas for the report! Cheers, Andy