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bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subproces
From: |
Clément Pit--Claudel |
Subject: |
bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10 |
Date: |
Mon, 11 Jan 2016 14:41:20 -0500 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 |
On 01/11/2016 02:33 PM, Eli Zaretskii wrote:
>> Cc: 22344@debbugs.gnu.org
>> From: Clément Pit--Claudel <clement.pit@gmail.com>
>> Date: Mon, 11 Jan 2016 13:02:47 -0500
>>
>>> Thanks. Are all the affected programs written in JavaScript? Do they
>>> all set stdin encoding to UTF-8? If so, does the problem go away if
>>> you remove the line that sets the encoding?
>>
>> No, the following javascript implementation of cat also reproduces the issue:
>>
>> function blackhole() {
>> process.stdin.resume();
>> process.stdin.setEncoding("ascii");
>> process.stdin.on('data', function (chunk) { process.stdout.write(chunk);
>> });
>> }
>> blackhole();
>
> Could it be that the script exits as soon as it processed the first 4K
> chunk, without waiting for the next one, or without waiting long
> enough?
I'm not sure if I understand correctly. In the working case (sending small
batches) the underlying script does receive everything Emacs sends. In fact,
the blackhole example shown above never exits; it keeps reading on stdin and
echoing on stdout.
With a more complex setup, Emacs hangs when we send the whole buffer, but when
sending it in small chunks the underlying process returns the expected results.
Clément.
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- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Clément Pit--Claudel, 2016/01/11
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Eli Zaretskii, 2016/01/11
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Clément Pit--Claudel, 2016/01/11
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Eli Zaretskii, 2016/01/11
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Clément Pit--Claudel, 2016/01/11
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Clément Pit--Claudel, 2016/01/11
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Eli Zaretskii, 2016/01/11
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Clément Pit--Claudel, 2016/01/11
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Clément Pit--Claudel, 2016/01/11
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Eli Zaretskii, 2016/01/11
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10,
Clément Pit--Claudel <=
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Eli Zaretskii, 2016/01/12
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Clément Pit--Claudel, 2016/01/13
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Eli Zaretskii, 2016/01/14
- bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Clément Pit--Claudel, 2016/01/14
bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Clément Pit--Claudel, 2016/01/11
bug#22344: 25.0.50 (and 24.5.1, 24.4); Sending 4097 bytes to a subprocess hangs Emacs on Windows 8 and 10, Benjamin Schwehn, 2016/01/13