From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Noam Postavsky Newsgroups: gmane.emacs.bugs Subject: bug#19868: #19868 25.0.50; Compilation eats buffers Date: Mon, 15 Aug 2016 18:19:05 -0400 Message-ID: References: <83h9apdv76.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: blaine.gmane.org 1471299620 31915 195.159.176.226 (15 Aug 2016 22:20:20 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 15 Aug 2016 22:20:20 +0000 (UTC) Cc: Richard Copley , 19868@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Aug 16 00:20:16 2016 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 1bZQEy-00081t-6m for geb-bug-gnu-emacs@m.gmane.org; Tue, 16 Aug 2016 00:20:16 +0200 Original-Received: from localhost ([::1]:39084 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bZQEv-00056i-8F for geb-bug-gnu-emacs@m.gmane.org; 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Mon, 15 Aug 2016 22:20:01 +0000 Original-Received: (at 19868) by debbugs.gnu.org; 15 Aug 2016 22:19:12 +0000 Original-Received: from localhost ([127.0.0.1]:58608 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bZQDw-0000R9-25 for submit@debbugs.gnu.org; Mon, 15 Aug 2016 18:19:12 -0400 Original-Received: from mail-oi0-f48.google.com ([209.85.218.48]:33307) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bZQDv-0000Qy-DA for 19868@debbugs.gnu.org; Mon, 15 Aug 2016 18:19:11 -0400 Original-Received: by mail-oi0-f48.google.com with SMTP id c15so77139986oig.0 for <19868@debbugs.gnu.org>; Mon, 15 Aug 2016 15:19:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=hddMZ/RFGvJyRceXg3ZgEgB7ftTxkizFxkhbeAVKq3w=; b=bT2Bf5ETenlaA+d9dW+ioRjTb3p1pL572Q6O+aCzg4OHEyLS/1utesLk2laqztn19p 0o7hNRWMttoaUBKWZpdTP2UFE+eOWt5vcITu06MnPr+J9YR1l6REyldHqc0OfPK+GN7h Wr+dMSZYWzWj3kn/RznhUhCf/gWjFnDIv782Lif2mK1aeBlWSUbHJNlw/+jRJe8QXm4X 5neiNmKlx1gXxJs1f8nQ7WsY/gnWA0lMkxKWidyd4YnIycBojGq1szDeA8tthZ7ioDKO xfEMVkBR9HB9JTYSDHOAMw9xo/FAnO2xmG9wHkdvbY6/LLhBc/anoSxFe8I1iRw0f3Wj JF6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=hddMZ/RFGvJyRceXg3ZgEgB7ftTxkizFxkhbeAVKq3w=; b=PW4LyLxjFJpCewTy7Qu9lMU5M6kCWqdLENj5xpQ8/yvrQRzKrrx6b63vKFr6qif72p cJz7bihgTJMeESBNDSkNLeoI+RfUUZ/z0NmFDBdo5XnPjApkf1Ber5O8sSQKmmOHs0iJ 4vQxgtpuyEzBWquWWI9NklJsoJ+zxTkDEbwjKzFAwSEktw34JHakZ3fx0gO0RvkjBj++ r7vTheTWiXP2tmcGKkyHK0LQHn7J3pUfeFdMIXc5wYhhoDwzTlRiK8rN7WZ0SiSEuG1x IPxo2mV+diIl5CXSDcm40ZCuRi3w6v3hjGMqKUACtG8lBp/kyJbNPJ9kkC6/UXJD0YtI s44w== X-Gm-Message-State: AEkoouuzdZM58tsTlffUCnDVKjPROjUBTJoK6Dlr+6CylLEmTFyoj7c8V8FyUBPKYiPKmjYV9Tr/JRfafnGCYw== X-Received: by 10.157.37.241 with SMTP id q104mr14588231ota.112.1471299545750; Mon, 15 Aug 2016 15:19:05 -0700 (PDT) Original-Received: by 10.157.7.200 with HTTP; Mon, 15 Aug 2016 15:19:05 -0700 (PDT) In-Reply-To: <83h9apdv76.fsf@gnu.org> X-Google-Sender-Auth: PWRuuVOTxZPtZbjX0xAdSlt98tg 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:122258 Archived-At: On Sat, Aug 13, 2016 at 2:44 AM, Eli Zaretskii wrote: >> From: Noam Postavsky >> Date: Fri, 12 Aug 2016 16:47:07 -0400 >> Cc: Richard Copley >> >> I reproduced this (the hanging, not the buffer eating) on Windows 10, >> Emacs 25.1, MinGW64. Stepping with gdb I found the the hang occurs in >> sys_close where it calls _close (fd). This is being called from >> deactivate_process: >> >> for (i = 0; i < PROCESS_OPEN_FDS; i++) >> close_process_fd (&p->open_fd[i]); // <-- when i == 2 > > Does it hang in the _close call itself, or somewhere else? It's in the _close call itself. > > And what is the value of fd? > > Can you instrument the relevant code with printf's and see this > happening without stepping through the code with GDB? Doing the > latter might change the timing of the calls, so we might be trying to > use file descriptors when the process (cmdproxy) is already dead, and > so the other end of the pipe no longer exists. I put fprintf+fflush before close_process_fd and around _close: close_process_fd(-1[i = 0]) close_process_fd(4[i = 1]) going to _close(4)...done _close(4) close_process_fd(5[i = 2]) going to _close(5)... // here Emacs hangs until I kill bug.exe