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Posted to bugs@httpd.apache.org by bu...@apache.org on 2018/10/10 15:07:30 UTC

[Bug 62813] New: exiting prefork child doesn't clear request pool

https://bz.apache.org/bugzilla/show_bug.cgi?id=62813

            Bug ID: 62813
           Summary: exiting prefork child doesn't clear request pool
           Product: Apache httpd-2
           Version: 2.2.34
          Hardware: All
                OS: Linux
            Status: NEW
          Keywords: PatchAvailable
          Severity: normal
          Priority: P2
         Component: mpm_worker
          Assignee: bugs@httpd.apache.org
          Reporter: luhliari@redhat.com
                CC: bugs@httpd.apache.org, mkent@magoazul.com,
                    Tom.Donovan@acm.org
        Depends on: 43857
  Target Milestone: ---

The same issue occurs when worker MPM is used. Don't have reproducer or fix
yet.

+++ This bug was initially created as a clone of Bug #43857 +++

When a prefork child exits (either graceful, or chosen as an idle child to die)
- the last request's pool is not cleared.

Server pool cleanups can depend on request pool cleanups having been run.  An
example is APR reslist.  If the last request acquired a resource, relist
cleanup
will fail an assertion:

  httpd: misc/apr_reslist.c:157: reslist_cleanup: Assertion `rl->ntotal == 0'
failed.
  [Wed Nov 14 10:44:02 2007] [notice] child pid 7491 exit signal Aborted (6)


Referenced Bugs:

https://bz.apache.org/bugzilla/show_bug.cgi?id=43857
[Bug 43857] exiting prefork child doesn't clear request pool
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[Bug 62813] exiting prefork child doesn't clear request pool

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62813

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

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

--- Comment #2 from William A. Rowe Jr. <wr...@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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[Bug 62813] exiting prefork child doesn't clear request pool

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62813

Yann Ylavic <yl...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #1 from Yann Ylavic <yl...@gmail.com> ---
Can you reproduce with latest 2.4 version? 2.2 is not maintained anymore and
unlikely to receive fixes.

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