From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Lars Brinkhoff Newsgroups: gmane.emacs.devel Subject: Debugging problems using async.el Date: Fri, 07 Apr 2017 15:28:53 +0200 Organization: nocrew Message-ID: <86mvbs2voq.fsf_-_@molnjunk.nocrew.org> References: <86pogo4vty.fsf@molnjunk.nocrew.org> <8360igof0k.fsf@gnu.org> <867f2w4qdk.fsf@molnjunk.nocrew.org> <83zifsmtp6.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1491571807 29084 195.159.176.226 (7 Apr 2017 13:30:07 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 7 Apr 2017 13:30:07 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Apr 07 15:30:01 2017 Return-path: Envelope-to: ged-emacs-devel@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 1cwTxh-00079Y-BL for ged-emacs-devel@m.gmane.org; Fri, 07 Apr 2017 15:30:01 +0200 Original-Received: from localhost ([::1]:50882 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cwTxn-0004n5-9h for ged-emacs-devel@m.gmane.org; Fri, 07 Apr 2017 09:30:07 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37695) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cwTx0-0004lm-Cq for emacs-devel@gnu.org; Fri, 07 Apr 2017 09:29:19 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cwTwx-0003gc-7a for emacs-devel@gnu.org; Fri, 07 Apr 2017 09:29:18 -0400 Original-Received: from [195.159.176.226] (port=60785 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cwTwx-0003gP-1Z for emacs-devel@gnu.org; Fri, 07 Apr 2017 09:29:15 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1cwTwn-0001jU-Fb for emacs-devel@gnu.org; Fri, 07 Apr 2017 15:29:05 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 17 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:n6unfUnYWINyBS+SU359ATh5kvA= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 195.159.176.226 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:213746 Archived-At: Eli Zaretskii wrote: >> From: Lars Brinkhoff >> The problem is finding this function call which is made in an async >> subprocess emacs. The backtrace we have only shows what's going in >> in the parent emacs. > > I generally find debugging problems in using async.el to be very hard > indeed. I'm beginning to see that! I set async-debug to t to capture the Lisp form sent to the subordinate emacs. I was hoping that I could just wrap this in funcall and run it in a fresh emacs, but the error doesn't seem to appear when I do that. I see the subordinate logs stuff to *Messages*, which goes to stdout in batch mode. I wonder if that output is saved somewhere.