From: Ken Brown <kbrown@cornell.edu>
To: Jim Porter <jporterbugs@gmail.com>,
Sean Whitton <spwhitton@email.arizona.edu>,
56025@debbugs.gnu.org, Lars Magne Ingebrigtsen <larsi@gnus.org>
Subject: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin
Date: Sat, 18 Jun 2022 13:52:41 -0400 [thread overview]
Message-ID: <adda4056-e231-2d98-6622-fdb45e45b942@cornell.edu> (raw)
In-Reply-To: <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@gmail.com>
On 6/17/2022 11:50 PM, Jim Porter wrote:
> On 6/17/2022 7:07 PM, Ken Brown wrote:
>> On 6/17/2022 8:57 PM, Sean Whitton wrote:
>>> Could you see if the same thing happens if you type
>>>
>>> echo "bar" | sh -c "rev >temp"
>>>
>>> into an interactive session, please?
>>>
>>> If it's the same then extpipe has uncovered a general Eshell bug.
>>
>> Yes, it's the same. And it's even the same if I remove the quotation marks
>> around "rev >temp".
>
> Does the above command also fail on Emacs 28? I changed some aspects of process
> management for Eshell in Emacs 29, so it's possible this is a regression. If it
> works correctly under Emacs 28, I'd be very interested to see the results of
> bisecting to find the breaking commit.
No, I'm seeing the same results on Emacs 28. On both Emacs 28 and Emacs 29, rev
is apparently not seeing EOF unless echo outputs a newline, so rev keeps waiting
for input.
[Side note: It took me a while to sort this out because (a) Eshell's echo does
not output a newline by default, in contrast to Bash's builtin echo; (b) in
Eshell in Emacs 28, you use '-n' to add a newline, while in Bash '-n' suppresses
the newline; and (c) in Eshell in Emacs 29, you use '-N' to add a newline.]
Here's my simplest reproduction recipe for the bug: Type 'echo bar | rev' into
Eshell. In both Emacs 28 and Emacs 29, 'rab' is output but rev keeps running.
But if I make echo output a newline (by '-n' in Emacs 28 and '-N' in Emacs 29),
then rev exits after outputting 'rab' (followed by newline).
Ken
next prev parent reply other threads:[~2022-06-18 17:52 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-16 18:30 bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin Ken Brown
2022-06-16 19:30 ` Sean Whitton
2022-06-16 22:01 ` Ken Brown
2022-06-17 13:39 ` Ken Brown
2022-06-18 0:57 ` Sean Whitton
2022-06-18 2:07 ` Ken Brown
2022-06-18 2:35 ` Ken Brown
2022-06-18 3:50 ` Jim Porter
2022-06-18 17:52 ` Ken Brown [this message]
2022-06-18 19:02 ` Jim Porter
2022-06-18 20:51 ` Ken Brown
2022-06-18 22:00 ` Jim Porter
2022-06-18 23:46 ` Sean Whitton
2022-06-19 16:02 ` Ken Brown
2022-06-24 1:18 ` Ken Brown
2022-06-24 4:40 ` Sean Whitton
2022-06-24 6:07 ` Eli Zaretskii
2022-06-24 16:53 ` Jim Porter
2022-06-24 22:23 ` Sean Whitton
2022-06-24 23:03 ` Jim Porter
2022-06-25 5:34 ` Eli Zaretskii
2022-06-25 16:13 ` Jim Porter
2022-06-25 16:53 ` Eli Zaretskii
2022-06-26 16:27 ` Lars Ingebrigtsen
2022-06-26 17:12 ` Sean Whitton
2022-06-26 17:22 ` Jim Porter
2022-06-26 21:11 ` Sean Whitton
2022-06-27 13:25 ` Ken Brown
2022-06-27 15:51 ` Michael Albinus
2022-06-27 16:22 ` Ken Brown
2022-06-27 19:13 ` bug#56025: [EXT]Re: " Sean Whitton
2022-06-27 21:17 ` Ken Brown
2022-06-27 19:18 ` Jim Porter
2022-06-27 21:19 ` Ken Brown
2022-07-01 3:52 ` Jim Porter
2022-07-01 3:58 ` Jim Porter
2022-07-06 22:33 ` Ken Brown
2022-07-07 4:35 ` Jim Porter
2022-07-07 4:42 ` Jim Porter
2022-07-07 12:42 ` Ken Brown
2022-07-17 2:35 ` bug#56025: [WIP PATCH] " Jim Porter
2022-07-17 6:03 ` Eli Zaretskii
2022-07-17 17:44 ` Jim Porter
2022-07-17 18:26 ` Eli Zaretskii
2022-07-17 18:51 ` Jim Porter
2022-07-18 8:09 ` Michael Albinus
2022-07-19 1:58 ` Jim Porter
2022-07-19 7:59 ` Michael Albinus
2022-07-17 21:59 ` Ken Brown
2022-07-18 5:26 ` Jim Porter
2022-07-22 4:16 ` bug#56025: [PATCH v2] " Jim Porter
2022-07-22 19:00 ` Ken Brown
2022-07-24 4:05 ` Jim Porter
2022-07-24 5:19 ` bug#56025: [PATCH v3] " Jim Porter
2022-07-24 5:29 ` bug#56025: [PATCH v4] " Jim Porter
2022-07-24 9:08 ` Lars Ingebrigtsen
2022-07-24 9:48 ` Eli Zaretskii
2022-07-24 21:04 ` Ken Brown
2022-07-24 9:47 ` Eli Zaretskii
2022-07-24 17:36 ` bug#56025: [PATCH v5] " Jim Porter
2022-07-24 20:30 ` Ken Brown
2022-07-31 1:01 ` Jim Porter
2022-08-06 1:10 ` Jim Porter
2022-08-06 12:17 ` Lars Ingebrigtsen
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