From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla@dpdk.org
Subject: [Bug 114] rte_rand() is not thread-safe but not
	documented as such
Date: Fri, 30 Nov 2018 08:59:26 +0000
Message-ID: <bug-114-3@http.bugs.dpdk.org/>
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https://bugs.dpdk.org/show_bug.cgi?id=3D114

            Bug ID: 114
           Summary: rte_rand() is not thread-safe but not documented as
                    such
           Product: DPDK
           Version: 18.11
          Hardware: All
                OS: All
            Status: CONFIRMED
          Severity: minor
          Priority: Normal
         Component: core
          Assignee: dev@dpdk.org
          Reporter: mattias.ronnblom@ericsson.com
  Target Milestone: ---

rte_rand() is implemented by means of lrand48() libc calls. This function is
not thread safe, and besides any implications on correctness this might have
for parallel applications, the global state will also hurt performance.

Either rte_rand() should be documented as non-thread safe, or it should - if
possible - be implemented with lrand48_r() instead of its unsafe cousin.

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