GNU bug report logs -
#56025
29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin
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Reported by: Ken Brown <kbrown <at> cornell.edu>
Date: Thu, 16 Jun 2022 18:36:02 UTC
Severity: normal
Found in version 29.0.50
Fixed in version 29.1
Done: Lars Ingebrigtsen <larsi <at> gnus.org>
Bug is archived. No further changes may be made.
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On 6/16/2022 6:01 PM, Ken Brown wrote:
> On 6/16/2022 3:30 PM, Sean Whitton wrote:
>> Hello Ken,
>>
>> On Thu 16 Jun 2022 at 02:30pm -04, Ken Brown wrote:
>>
>>> In commit 231a1ba3, Lars disabled the extpipe tests on EMBA "because they
>>> apparently time out". The EMBA log he cited in the commit message shows that
>>> only em-extpipe-test-2 times out. And this same test (but no others) also times
>>> out on Cygwin:
>>
>> That test invokes `sh -c "rev >temp"` as its only subprocess, so that's
>> probably what is timing out. Is there something different about
>> Cygwin's sh? Something about EOFs?
>
> I'm not aware of anything different. Here's what happens when I run the test
> interactively:
>
> $ time echo \"bar\" | sh -c "rev >temp"
>
> real 0m0.100s
> user 0m0.030s
> sys 0m0.030s
>
> $ cat temp
> "rab"
>
> And keep in mind that the test also times out on EMBA.
I just tried a different experiment: In an interactive emacs-29 session, I
started eshell and typed
echo \"bar\" | rev *>temp
Nothing visible happens until I type 'C-c C-c'. Then a prompt appears again,
and 'ls -l' shows that temp exists and is empty.
Prior to typing 'C-c C-c', 'M-x list-processes' (or 'C-c C-s') shows a bash
process running but it doesn't show 'rev'. But running 'ps' outside of emacs
shows both 'rev' and its parent 'bash' process.
It does seem that there's an actual bug here, not just a test that should be
skipped because it times out. It could be a Cygwin bug, of course, but that
doesn't explain the EMBA failure.
Ken
This bug report was last modified 2 years and 351 days ago.
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