[Bug 213940] lang/php56

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=213940

            Bug ID: 213940
           Summary: lang/php56
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: ale at FreeBSD.org
          Reporter: chris at cretaforce.gr
          Assignee: ale at FreeBSD.org
             Flags: maintainer-feedback?(ale at FreeBSD.org)

There is a problem with PHP 5.6.27 (maybe in previous version too) or Freebsd
10.3-STABLE (Wed Oct 26 20:16:09 EEST 2016) and randomly php-fpm (with
pm=dynamic) hangs. It doesn't process requests for whole server. top shows 1 or
2 processes that use 100% CPU.

truss -p 32701

kill(18810,SIGKILL)                              ERR#3 'No such process'
fcntl(3,F_GETLK,0x7fffffffc5c0)                  = 0 (0x0)
kill(18810,SIGKILL)                              ERR#3 'No such process'
fcntl(3,F_GETLK,0x7fffffffc5c0)                  = 0 (0x0)
kill(18810,SIGKILL)                              ERR#3 'No such process'
fcntl(3,F_GETLK,0x7fffffffc5c0)                  = 0 (0x0)
kill(18810,SIGKILL)                              ERR#3 'No such process'
fcntl(3,F_GETLK,0x7fffffffc5c0)                  = 0 (0x0)

fstat -p 32701

USER     CMD          PID   FD MOUNT      INUM MODE         SZ|DV R/W
gioannou php-fpm    32701 text /usr     162750 -rwxr-xr-x  4471845  r
gioannou php-fpm    32701   wd /        321033 drwxr-xr-x     512  r
gioannou php-fpm    32701 root /             2 drwxr-xr-x     512  r
gioannou php-fpm    32701    0* local stream fffff8032888e4b0
gioannou php-fpm    32701    1 /dev         13 crw-rw-rw-    null rw
gioannou php-fpm    32701    2 /dev         13 crw-rw-rw-    null rw
gioannou php-fpm    32701    3 -          6084 -rw-rw-rw-       0 rw
gioannou php-fpm    32701    4* local stream fffff80457b1aa50

procstat -kk 32701
  PID    TID COMM             TDNAME           KSTACK
32701 101779 php-fpm          -                <running>

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