From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Herman@debbugs.gnu.org, =?UTF-8?Q?G=C3=A9za?= Newsgroups: gmane.emacs.bugs Subject: bug#54667: 29.0.50; posix_spawn breaks emacs-gdb Date: Fri, 1 Apr 2022 15:29:50 +0200 Message-ID: <4d6ef0f6-8ab6-2dce-aa63-d18108fd5f21@gmail.com> References: <87fsmx80e5.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="26615"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.1 Cc: 54667@debbugs.gnu.org To: Robert Pluim Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Apr 01 15:37:42 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1naHTB-0006nE-U7 for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 01 Apr 2022 15:37:41 +0200 Original-Received: from localhost ([::1]:51796 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1naHTA-00053B-Rs for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 01 Apr 2022 09:37:40 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:53338) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1naHLn-0002dY-Lu for bug-gnu-emacs@gnu.org; Fri, 01 Apr 2022 09:30:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:47270) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1naHLn-000841-Ad for bug-gnu-emacs@gnu.org; Fri, 01 Apr 2022 09:30:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1naHLn-0006Fa-52 for bug-gnu-emacs@gnu.org; Fri, 01 Apr 2022 09:30:03 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Herman@debbugs.gnu.org, =?UTF-8?Q?G=C3=A9za?= Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 01 Apr 2022 13:30:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 54667 X-GNU-PR-Package: emacs Original-Received: via spool by 54667-submit@debbugs.gnu.org id=B54667.164881980023998 (code B ref 54667); Fri, 01 Apr 2022 13:30:03 +0000 Original-Received: (at 54667) by debbugs.gnu.org; 1 Apr 2022 13:30:00 +0000 Original-Received: from localhost ([127.0.0.1]:41167 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1naHLj-0006Ez-Uh for submit@debbugs.gnu.org; Fri, 01 Apr 2022 09:30:00 -0400 Original-Received: from mail-ej1-f48.google.com ([209.85.218.48]:35443) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1naHLi-0006Ek-Ba for 54667@debbugs.gnu.org; Fri, 01 Apr 2022 09:29:59 -0400 Original-Received: by mail-ej1-f48.google.com with SMTP id yy13so5925568ejb.2 for <54667@debbugs.gnu.org>; Fri, 01 Apr 2022 06:29:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding:content-language; bh=iJxBEiN89VugdMEovoR7G3p1s3T2pMwn4/fO/o2M56U=; b=V+P5sm1JtLDJXaUDF0ePDX0aE04YTJ4FUOM0DKZZj805hkLgY+5PxbIrbIzkpKnG5a jTFyXH2NH8Ls5to1yBK3zYvj+ZS+OVoA1ToX02QqaBKH6rJNjkLRmlqZ/fHSmSowWblN HQOADYLQf0hGZhVss9tbESw+uhyL9T291J9I75ETtLaRf4ZoqfcRS0mGqZnqSwvH51Kt g/A6Y19ZL8KijPBxKwOD12owtKnDWQJsKESi8TUtFV82dV5QsdUpQ9dQ84GH5xEK6r5I gRiKaD+Ccek2kB2PEypCzhQhuHTpE5n1eqW8aLX0Q7W2Oap0m4DFeKX9StM6dPGncbJE dmfQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=iJxBEiN89VugdMEovoR7G3p1s3T2pMwn4/fO/o2M56U=; b=MZ/w2n7zIH4eyGNayVH/q7DvRkuL0XZhg5Ey/nRM34ZZ8aj1Iwmr3JtQ37RGnSzmWx 0lkv7rzHuGcnnb+9ENdikCRisk4cJBsy7jVsWhyGAl7x3+xAo96CgSukPzIOVHk/7qFF ke8AltAtORSCwTlePxPVon4ownK/j2SBYKzAToAzsmYgDNRmjESMgJDF5W1Jkp+/TcMQ HJUED36Xaln0X1fPPBgFZfy6yOLqvrvwPYqatTL6ng3Ca8kX2lilp3t/Et43DhimwDN2 YQBwl0Ic7OrXukM09ALtobMsrwElbfliw92b/Vbd1cerRZ6EkQEYcYcZOI/jCDtAiuRR ihsA== X-Gm-Message-State: AOAM532g/vpxRtoQQmj8jJchSJdPcvAx5xoj3KZ2OTKFryX6QLAGEZOj TRdZQ/cB+6+B3U80dcBpyU0= X-Google-Smtp-Source: ABdhPJwBNtdq9U+F+izOyz76sTGhmNNXv7C3880Enis6mY3MtPCKwG3TvUwI/1NmqQq7hA4PQsFxog== X-Received: by 2002:a17:906:1be1:b0:6ce:b0a8:17d with SMTP id t1-20020a1709061be100b006ceb0a8017dmr9283282ejg.413.1648819792253; Fri, 01 Apr 2022 06:29:52 -0700 (PDT) Original-Received: from [192.168.8.4] (netacc-gpn-104-27-105.pool.telenor.hu. [91.104.27.105]) by smtp.gmail.com with ESMTPSA id f15-20020a50e08f000000b004134a121ed2sm1224102edl.82.2022.04.01.06.29.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 01 Apr 2022 06:29:51 -0700 (PDT) In-Reply-To: <87fsmx80e5.fsf@gmail.com> Content-Language: sv-FI X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:229225 Archived-At: I can confirm that it fixes the problem. For reference, here's the patch: https://lists.gnu.org/archive/html/emacs-devel/2022-03/msg00067.html (Btw., according to this email thread, vfork is faster than posix_spawn on Linux, so maybe it'd make sense to use posix_spawn only on non-Linux platforms?) On 2022-04-01 14:16, Robert Pluim wrote: >>>>>> On Fri, 1 Apr 2022 12:51:43 +0200, Herman@debbugs.gnu.org, Géza said: > Herman> There's a gdb frontend: https://github.com/weirdNox/emacs-gdb > Herman> With the emacs commit "a60053f836 Use posix_spawn if possible.", > Herman> emacs-gdb doesn't work properly: when starting an executable, gdb says > Herman> that it's running, but in reality, it doesn't start. The process > Herman> itself is started, gdb attaches to it, but the process still not run > Herman> for some reason. > > Herman> You can reproduce this: > Herman> 1. install emacs-gdb > Herman> 2. M-x gdb-executable, enter any executable, like "/bin/ls". emacs-gdb > Herman> should open a new frame. > Herman> 3. Then press f5 (this executes gdb-run-or-continue), this should > Herman> start the process in gdb. > > Herman> Before the mentioned commit, this worked, and "ls" was run > Herman> properly. But with this commit, "ls" isn't started. > > Herman> I checked this with a recent master > Herman> (bd5d136777ef30f36807c7e690413846ed38fce1), and still happens. Adding > > Herman> #undef USABLE_POSIX_SPAWN > Herman> #define USABLE_POSIX_SPAWN 0 > > Herman> to callproc.c at line 49 fixes the issue. > > Thereʼs a patch from Jürgen Hötzel in <86o82mvybj.fsf@hoetzel.info> on > emacs-devel that should fix it (I haven't had a chance to fully test > it). > > Robert