X-Recipient: archive-cygwin AT delorie DOT com
X-Original-To: cygwin AT cygwin DOT com
Delivered-To: cygwin AT cygwin DOT com
DKIM-Filter: OpenDKIM Filter v2.10.3 conssluserg-06.nifty.com 02CAvUxx025541
X-Nifty-SrcIP: [125.0.205.54]
Date: Thu, 12 Mar 2020 19:57:31 +0900
To: cygwin AT cygwin DOT com
Subject: Re: cygwin-3.1.0 and mintty from desktop shortcut
Message-Id: <20200312195731.2f8723a73ae0ae4d48fa9dbd@nifty.ne.jp>
In-Reply-To: <20200311195142.GH4042@calimero.vinschen.de>
References: <announce DOT 20191216201131 DOT 494767-1-corinna-cygwin AT cygwin DOT com>
 <87pngmx26z DOT fsf AT Rainer DOT invalid>
 <20191218090415 DOT GG10310 AT calimero DOT vinschen DOT de>
 <87a77pbn5j DOT fsf AT Rainer DOT invalid> <87blp2lr6p DOT fsf AT Rainer DOT invalid>
 <20200311195142 DOT GH4042 AT calimero DOT vinschen DOT de>
X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.30; i686-pc-mingw32)
Mime-Version: 1.0
Content-Type: multipart/mixed;
 boundary="Multipart=_Thu__12_Mar_2020_19_57_31_+0900_nos9s8iv8Owe6U7G"
X-Spam-Status: No, score=-12.1 required=5.0 tests=BAYES_00, DKIM_SIGNED,
 DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_2, GIT_PATCH_3,
 RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,
 SPF_PASS autolearn=ham autolearn_force=no version=3.4.2
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on
 server2.sourceware.org
X-BeenThere: cygwin AT cygwin DOT com
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Cygwin mailing list <cygwin.cygwin.com>
List-Unsubscribe: <http://cygwin.com/mailman/options/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive: <http://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe: <http://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From: Takashi Yano via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
Errors-To: cygwin-bounces AT cygwin DOT com
Sender: "Cygwin" <cygwin-bounces AT cygwin DOT com>

This is a multi-part message in MIME format.

--Multipart=_Thu__12_Mar_2020_19_57_31_+0900_nos9s8iv8Owe6U7G
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit

On Wed, 11 Mar 2020 20:51:42 +0100
Corinna Vinschen wrote:
> Hi Takashi,
> 
> would you mind to take a look?  The mutex is only used in
> fhandler_pty_master::pty_master_fwd_thread if the pseudo console is
> used.  Unfortunately I don't see the faintest hint in the starce why
> this occurs.  It happens pretty early at startup.

I looked the second log, but I found nothing suspicious regarding
mutex. All 'acquire' are paired with 'release' correctly.

However, I wonder why mintty did nothing for more than 60msec
after select() returned.

Achim, can you build mintty locally? If so, could you please
apply attahed patch to mintty 3.1.4 and report the output
in mintty window?

-- 
Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>

--Multipart=_Thu__12_Mar_2020_19_57_31_+0900_nos9s8iv8Owe6U7G
Content-Type: text/plain;
 name="mintty-for-achim.diff"
Content-Disposition: attachment;
 filename="mintty-for-achim.diff"
Content-Transfer-Encoding: 7bit

--- src/child.c.orig	2020-02-14 06:27:15.000000000 +0900
+++ src/child.c	2020-03-12 19:49:12.566807600 +0900
@@ -513,7 +513,11 @@
           }
           prevtime = now;
 
+          term_write("Call read()\r\n", 13);
           int ret = read(pty_fd, buf, 1);
+          char m[32];
+          sprintf(m, "Read %d bytes\r\n", ret);
+          term_write(m, strlen(m));
           if (ret > 0)
             len = ret;
         }
@@ -522,7 +526,11 @@
         do {
           //if (kb_trace) printf("[%lu] <read\n", mtime());
 
+          term_write("Call read()\r\n", 13);
           int ret = read(pty_fd, buf + len, sizeof buf - len);
+          char m[32];
+          sprintf(m, "Read %d bytes\r\n", ret);
+          term_write(m, strlen(m));
           if (ret > 0)
             len += ret;
           else

--Multipart=_Thu__12_Mar_2020_19_57_31_+0900_nos9s8iv8Owe6U7G
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

--Multipart=_Thu__12_Mar_2020_19_57_31_+0900_nos9s8iv8Owe6U7G--