[Bug 53579] httpd looping writing on a pipe and unresponsive (httpd <defunct>)

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https://bz.apache.org/bugzilla/show_bug.cgi?id=53579

--- Comment #9 from Mark Evans <***@dell.com> ---
Any updates on this issue? Still running into it on 2.4.10... Any ideas on how
to force recreation? Looks like there needs to be a way to verify that the pod
writes are being consumed? How would I do that?

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https://bz.apache.org/bugzilla/show_bug.cgi?id=53579

Mark Evans <***@dell.com> changed:

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CC| |***@dell.com

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https://bz.apache.org/bugzilla/show_bug.cgi?id=53579

--- Comment #10 from Mahudeeswaran <***@gmail.com> ---
Able to see the issue in 2.2.31 as well, Did any one manage to find any
workaround to overcome this issue or any resolution on this. Is there any
concrete repro steps that would lead to this issue always.

For me most of the logs and scenarios matched exactly as given here.

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https://bz.apache.org/bugzilla/show_bug.cgi?id=53579

Mahudeeswaran <***@gmail.com> changed:

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https://bz.apache.org/bugzilla/show_bug.cgi?id=53579

--- Comment #11 from Andrea Leofreddi <***@vleo.net> ---
I could observe this issue with 2.4.6 (default httpd package on CentOS 7).

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Szőgyényi Gábor <***@freemail.hu> changed:

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CC| |***@freemail.hu

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https://bz.apache.org/bugzilla/show_bug.cgi?id=53579

--- Comment #12 from Paul Ripke <***@gmail.com> ---
+1.

Server version: Apache/2.4.29 (Unix)
Server built: Jan 29 2018 09:45:53
Server's Module Magic Number: 20120211:68
Server loaded: APR 1.6.3, APR-UTIL 1.6.1
Compiled using: APR 1.6.3, APR-UTIL 1.6.1
Architecture: 64-bit
Server MPM: prefork
threaded: no
forked: yes (variable process count)

NetBSD 8.0_BETA

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Paul Ripke <***@gmail.com> changed:

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https://bz.apache.org/bugzilla/show_bug.cgi?id=53579

--- Comment #13 from Yann Ylavic <***@gmail.com> ---
Created attachment 35795
--> https://bz.apache.org/bugzilla/attachment.cgi?id=35795&action=edit
Check POD on poll() timeout

Does this patch help?

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https://bz.apache.org/bugzilla/show_bug.cgi?id=53579

William A. Rowe Jr. <***@apache.org> changed:

What |Removed |Added
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Status|NEW |RESOLVED
Resolution|--- |LATER
Keywords| |MassUpdate

--- Comment #14 from William A. Rowe Jr. <***@apache.org> ---
Please help us to refine our list of open and current defects; this is a mass
update of old and inactive Bugzilla reports which reflect user error, already
resolved defects, and still-existing defects in httpd.

As repeatedly announced, the Apache HTTP Server Project has discontinued all
development and patch review of the 2.2.x series of releases. The final release
2.2.34 was published in July 2017, and no further evaluation of bug reports or
security risks will be considered or published for 2.2.x releases. All reports
older than 2.4.x have been updated to status RESOLVED/LATER; no further action
is expected unless the report still applies to a current version of httpd.

If your report represented a question or confusion about how to use an httpd
feature, an unexpected server behavior, problems building or installing httpd,
or working with an external component (a third party module, browser etc.) we
ask you to start by bringing your question to the User Support and Discussion
mailing list, see [https://httpd.apache.org/lists.html#http-users] for details.
Include a link to this Bugzilla report for completeness with your question.

If your report was clearly a defect in httpd or a feature request, we ask that
you retest using a modern httpd release (2.4.33 or later) released in the past
year. If it can be reproduced, please reopen this bug and change the Version
field above to the httpd version you have reconfirmed with.

Your help in identifying defects or enhancements still applicable to the
current httpd server software release is greatly appreciated.

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Christophe JAILLET <***@wanadoo.fr> changed:

What |Removed |Added
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Resolution|LATER |---
Status|RESOLVED |REOPENED
Version|2.2.22 |2.4-HEAD

--- Comment #15 from Christophe JAILLET <***@wanadoo.fr> ---
Reported in comments on different 2.4.x version.
So re-opening.