From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla@dpdk.org
Subject: [Bug 18] mmap with MAP_ANONYMOUS should have fd == -1
Date: Sun, 01 Apr 2018 12:21:54 +0000
Message-ID: <bug-18-3@http.dpdk.org/tracker/>
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https://dpdk.org/tracker/show_bug.cgi?id=3D18

            Bug ID: 18
           Summary: mmap with MAP_ANONYMOUS should have fd =3D=3D -1
           Product: DPDK
           Version: unspecified
          Hardware: All
                OS: Linux
            Status: CONFIRMED
          Severity: minor
          Priority: Normal
         Component: core
          Assignee: dev@dpdk.org
          Reporter: solal.pirelli@gmail.com
  Target Milestone: ---

In the Linux version of eal_memory.c, if hugepages are disabled, a memory-m=
ap
is performed with the MAP_ANONYMOUS flag
(http://dpdk.org/browse/dpdk/tree/lib/librte_eal/linuxapp/eal/eal_memory.c?=
h=3Dv18.02#n1013).

According to the man page for mmap
(http://man7.org/linux/man-pages/man2/mmap.2.html), the fd argument should =
be
set to -1 if MAP_ANONYMOUS is used, and not 0 as it currently is.

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