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Subject [Bug 57916] New: Random latency in reentrant calls
Date Mon, 11 May 2015 16:10:10 GMT

            Bug ID: 57916
           Summary: Random latency in reentrant calls
           Product: Apache httpd-2
           Version: 2.4.12
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core

Created attachment 32728
the reentrant.php calls itself recursively n times using the 'count' parameter.

Our php web site requires sometimes a reentrant call (i.e. it calls

Most of the times calls are really fast (<5ms) but about 1% of the calls are
over 0.5 secs

We had a hard time reproducing the bug but we finally found a php script that
calls itself (see enclosure).

To test it just try where 10 is the
reentrancy level.

The script works fine with NGINX that's why we suspect apache rather than PHP.

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