[Ns-bugs] [Bug 1290] New: buffer-test.cc gets a valgrind error

[code@nsnam.ece.gatech.edu]

https://www.nsnam.org/bugzilla/show_bug.cgi?id=1290

           Summary: buffer-test.cc gets a valgrind error
           Product: ns-3
           Version: pre-release
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P5
         Component: network
        AssignedTo: ns-bugs at isi.edu
        ReportedBy: watrous at u.washington.edu
   Estimated Hours: 0.0


Some of the ns-3 buildbots (full-rahan-g++-4.0.4) are failing.

I think the cause is the changes to this test:

    src/network/test/buffer-test.cc    

introduced in this changeset:

    Bug 1001 - Buffer::CopyData() doesn't return the number of bytes copied
    author        frederic.urbani at inria.fr
                  Wed Nov 09 10:13:41 2011 +0100 (12 hours ago)
    changeset 7573     a58e7a0cd725
    parent 7572        45789a380d6a
    child 7574         6b792c9b85cc

Here are the valgrind errors that buffer-test now gets: 

    stderr =  ==2499== Memcheck, a memory error detector
    ==2499== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al.
    ==2499== Using Valgrind-3.6.0.SVN and LibVEX; rerun with -h for copyright
info
    ==2499== Command:
/home/buildslave/slave/full-rahan-g++-4.0.4/build/build/utils/test-runner
--test-name=buffer --stop-on-failure --xml
--tempdir=testpy-output/2011-11-09-18-43-51-CUT
--out=testpy-output/2011-11-09-18-43-51-CUT/buffer.xml
    ==2499== 
    ==2499== 
    ==2499== HEAP SUMMARY:
    ==2499==     in use at exit: 39 bytes in 1 blocks
    ==2499==   total heap usage: 11,305 allocs, 11,304 frees, 883,071 bytes
allocated
    ==2499== 
    ==2499== 39 bytes in 1 blocks are definitely lost in loss record 1 of 1
    ==2499==    at 0x4A061AB: malloc (vg_replace_malloc.c:236)
    ==2499==    by 0xCEED346: ns3::BufferTest::DoRun() (buffer-test.cc:312)
    ==2499==    by 0xDDE574C: ns3::TestCase::Run(ns3::TestRunnerImpl*)
(test.cc:207)
    ==2499==    by 0xDDE5700: ns3::TestCase::Run(ns3::TestRunnerImpl*)
(test.cc:201)
    ==2499==    by 0xDDE739E: ns3::TestRunnerImpl::Run(int, char**)
(test.cc:785)
    ==2499==    by 0xDDE7596: ns3::TestRunner::Run(int, char**) (test.cc:808)
    ==2499==    by 0x400D12: main (test-runner.cc:23)
    ==2499== 
    ==2499== LEAK SUMMARY:
    ==2499==    definitely lost: 39 bytes in 1 blocks
    ==2499==    indirectly lost: 0 bytes in 0 blocks
    ==2499==      possibly lost: 0 bytes in 0 blocks
    ==2499==    still reachable: 0 bytes in 0 blocks
    ==2499==         suppressed: 0 bytes in 0 blocks
    ==2499== 
    ==2499== For counts of detected and suppressed errors, rerun with: -v
    ==2499== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 7 from 7)

    returncode = 2

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