From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#33839: 26.1.90; Emacs occasionally fails to receive asynchronous subprocess output in batch mode Date: Sun, 23 Dec 2018 17:21:58 +0200 Message-ID: <835zvk9skp.fsf@gnu.org> References: NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1545578466 1209 195.159.176.226 (23 Dec 2018 15:21:06 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 23 Dec 2018 15:21:06 +0000 (UTC) Cc: 33839@debbugs.gnu.org To: Philipp Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Dec 23 16:21:02 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 1gb5Yr-0000Cb-TW for geb-bug-gnu-emacs@m.gmane.org; Sun, 23 Dec 2018 16:21:02 +0100 Original-Received: from localhost ([::1]:43702 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gb5ay-0007Ty-Ps for geb-bug-gnu-emacs@m.gmane.org; Sun, 23 Dec 2018 10:23:12 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:55290) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gb5ar-0007Tm-8N for bug-gnu-emacs@gnu.org; Sun, 23 Dec 2018 10:23:05 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gb5ao-0004Vr-KB for bug-gnu-emacs@gnu.org; Sun, 23 Dec 2018 10:23:05 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:57870) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gb5ao-0004VV-GB for bug-gnu-emacs@gnu.org; Sun, 23 Dec 2018 10:23:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1gb5ao-0003Li-1o for bug-gnu-emacs@gnu.org; Sun, 23 Dec 2018 10:23:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 23 Dec 2018 15:23:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 33839 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 33839-submit@debbugs.gnu.org id=B33839.154557853812808 (code B ref 33839); Sun, 23 Dec 2018 15:23:02 +0000 Original-Received: (at 33839) by debbugs.gnu.org; 23 Dec 2018 15:22:18 +0000 Original-Received: from localhost ([127.0.0.1]:33895 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gb5a5-0003KW-QJ for submit@debbugs.gnu.org; Sun, 23 Dec 2018 10:22:18 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:46689) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gb5a3-0003KJ-SF for 33839@debbugs.gnu.org; Sun, 23 Dec 2018 10:22:16 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gb5Zx-0001pK-Qw for 33839@debbugs.gnu.org; Sun, 23 Dec 2018 10:22:10 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:54833) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gb5Zx-0001p8-N5; Sun, 23 Dec 2018 10:22:09 -0500 Original-Received: from [176.228.60.248] (port=3954 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1gb5Zx-00089w-3q; Sun, 23 Dec 2018 10:22:09 -0500 In-reply-to: (message from Philipp on Sun, 23 Dec 2018 03:28:53 +0100) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] 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:153788 Archived-At: > From: Philipp > Date: Sun, 23 Dec 2018 03:28:53 +0100 > > (with-temp-buffer > (let ((proc (make-process :name "test" > :command '("bash" "-c" "echo stdout; echo stderr >&2") > :buffer (current-buffer) > :connection-type 'pipe > :sentinel #'ignore > :noquery t > :coding '(utf-8-unix . utf-8-unix)))) > (when (process-live-p proc) > (process-send-eof proc)) > (while (process-live-p proc) > (accept-process-output proc)) > (cl-assert (equal (buffer-string) "stdout\nstderr\n") :show-args))) > > Then evaluate this form repeatedly. Occasionally the buffer is empty > and the assertion triggers. Isn't there an inherent race condition here?