From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Gemini Lasswell Newsgroups: gmane.emacs.bugs Subject: bug#33014: 26.1.50; 27.0.50; Fatal error after re-evaluating a thread's function Date: Wed, 17 Oct 2018 18:07:39 -0700 Message-ID: <871s8ocbac.fsf@runbox.com> References: <87d0sh9hje.fsf@runbox.com> <83murjwplq.fsf@gnu.org> <87zhvjc4r3.fsf@runbox.com> <83y3b2uzyt.fsf@gnu.org> <87va65daw9.fsf@runbox.com> <8336t9vi3h.fsf@gnu.org> <87ftx89uqs.fsf@igel.home> <837eijtfw1.fsf@gnu.org> <878t2xd90z.fsf@runbox.com> <8336t4sfwy.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1539824769 17192 195.159.176.226 (18 Oct 2018 01:06:09 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 18 Oct 2018 01:06:09 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1.50 (gnu/linux) Cc: 33014@debbugs.gnu.org, schwab@linux-m68k.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Oct 18 03:06:04 2018 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1gCwlI-0004Md-Bc for geb-bug-gnu-emacs@m.gmane.org; Thu, 18 Oct 2018 03:06:04 +0200 Original-Received: from localhost ([::1]:39705 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gCwnO-0007pc-RP for geb-bug-gnu-emacs@m.gmane.org; Wed, 17 Oct 2018 21:08:14 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:45920) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gCwnI-0007pW-IJ for bug-gnu-emacs@gnu.org; Wed, 17 Oct 2018 21:08:09 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gCwnD-00084X-1h for bug-gnu-emacs@gnu.org; Wed, 17 Oct 2018 21:08:06 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:51741) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gCwnC-00083x-AY for bug-gnu-emacs@gnu.org; Wed, 17 Oct 2018 21:08:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1gCwnC-0004IT-46 for bug-gnu-emacs@gnu.org; Wed, 17 Oct 2018 21:08:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Gemini Lasswell Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 18 Oct 2018 01:08:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 33014 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 33014-submit@debbugs.gnu.org id=B33014.153982486716490 (code B ref 33014); Thu, 18 Oct 2018 01:08:02 +0000 Original-Received: (at 33014) by debbugs.gnu.org; 18 Oct 2018 01:07:47 +0000 Original-Received: from localhost ([127.0.0.1]:55999 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gCwmx-0004Hu-2f for submit@debbugs.gnu.org; Wed, 17 Oct 2018 21:07:47 -0400 Original-Received: from aibo.runbox.com ([91.220.196.211]:39326) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gCwmv-0004Hl-DR for 33014@debbugs.gnu.org; Wed, 17 Oct 2018 21:07:46 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=runbox.com; s=rbselector1; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From; bh=DnG+520tTenwVUY0EZwh0Jr23rzwi4gf7TFaUebKwVk=; b=MUrjM5ybvAC/Hs5f6BDSPn3/nA DDIG2X37zVcES+AqFxsb5yGvmWDBEJfTVBQitb/0sXJr1+8J6rVKC2yMt7BmwNHa0TbJDdeO6yxqc wXoVts4iqJL05bcdpl1AsLNdWZz9NPU6R9yFn3QnBRjIK/BpgzumUsnQX6A9YRsLenKmOc5gr1STq IigoDbJtcuwOT9zOdYhWEz7qeCzTRWGNPvnTUpxDBFdyU6vDrtml0TTqrUy45lWbz5n2v7Wo/z8I/ qy761q7V6ZRaPqMKTtPonCKP9+PtwrUj8ivPlChdgaYBFVZkOQNoH+qm/9JME8TEFsBcNhvYW5bCj bE/l81QA==; Original-Received: from [10.9.9.212] (helo=mailfront12.runbox.com) by mailtransmit02.runbox with esmtp (Exim 4.86_2) (envelope-from ) id 1gCwmt-00064V-RB; Thu, 18 Oct 2018 03:07:43 +0200 Original-Received: by mailfront12.runbox.com with esmtpsa (uid:179284 ) (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) id 1gCwmr-0003Wp-CG; Thu, 18 Oct 2018 03:07:41 +0200 In-Reply-To: <8336t4sfwy.fsf@gnu.org> (Eli Zaretskii's message of "Wed, 17 Oct 2018 19:21:01 +0300") 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-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:151362 Archived-At: Eli Zaretskii writes: > After thinking about this a bit, I don't really agree with the last > one: the compiler could indeed stop tracking 'vector', but not > XVECTOR (vector)->contents, and we are interested in the latter. If the compiler stops tracking 'vector', and the garbage collector frees it, doesn't that cause XVECTOR (vector)->contents to be overwritten? In the debugging session in my second message in this thread I had a hardware watchpoint on what vectorp was pointing at and it went off in setup_on_free_list. > However, I'm still not convinced we are there. Can we establish which > element(s) of the bytecode vector are GC'ed in this scenario? I'll see if I can figure that out. Is there an easy way to print the function binding of a Lisp symbol from gdb?