From owner-freebsd-hackers@FreeBSD.ORG  Mon Apr 13 07:31:10 2015
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Date: Mon, 13 Apr 2015 09:31:02 +0200 (CEST)
From: Wojciech Puchar <wojtek@puchar.net>
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To: Oliver Pinter <oliver.pinter@hardenedbsd.org>
Subject: another question - VM mappings
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below is mapping for very simple process (no libc etc)

[wojtek@laptop ~]$ procstat -v 917
   PID              START                END PRT  RES PRES REF SHD   FL TP PATH
   917           0x400000           0x401000 r-x    1    0   1   0 CN-- vn /home/wojtek/test/1
   917           0x600000           0x601000 rw-    1    0   1   0 ---- df
   917     0x7ffffffdf000     0x7ffffffff000 rw-    1    0   1   0 ---D df
   917     0x7ffffffff000     0x800000000000 r-x    0    0  39   0 ---- ph


what is "ph" mapping and why read&executable?