<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

</head>

<body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">

Hi folks,

<div class=""><br class="">

</div>

<div class="">When running our msan-instrumented simulation program, instead of a proper output I get the following error:</div>

<div class=""><br class="">

</div>

<div class="">==12089==WARNING: MemorySanitizer: use-of-uninitialized-value</div>

<div class="">

<div class="">==12089==WARNING: Can't read from symbolizer at fd 14</div>

<div class="">/pds/opt/llvm/bin/llvm-symbolizer: symbol lookup error: /pds/opt/libcxx-20151121-r253770-clang-msan/lib/libc++abi.so.1: undefined symbol: __msan_origin_tls</div>

<div class="">==12089==WARNING: external symbolizer didn't start up correctly!</div>

</div>

<div class=""><br class="">

</div>

<div class="">My setup for using the memory sanitizer is as follows:</div>

<div class="">- compile libc++/libc++abi with -fsanitize=memory</div>

<div class="">- compile test program with normal (=uninstrumented) LLVM/Clang installation using -fsanitize=memory</div>

<div class="">- put instrumented libcxx/libcxxabi library dirs into LD_LIBRARY_PATH</div>

<div class="">- run program</div>

<div class=""><br class="">

</div>

<div class="">Any idea what I am doing wrong? Thanks a lot in advance!</div>

<div class=""><br class="">

</div>

<div class="">Michael</div>

<br class="">

<br class="">

<br class="">

<div apple-content-edited="true" class="">

<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">

<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;">

<div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">

<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;">

<div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">

--<br class="">

Michael Schlottke-Lakemper<br class="">

<br class="">

Chair of Fluid Mechanics and Institute of Aerodynamics<br class="">

RWTH Aachen University<br class="">

Wüllnerstraße 5a<br class="">

52062 Aachen<br class="">

Germany<br class="">

<br class="">

Phone: +49 (241) 80 95188<br class="">

Fax: +49 (241) 80 92257<br class="">

Mail: <a href="mailto:m.schlottke-lakemper@aia.rwth-aachen.de" class="">m.schlottke-lakemper@aia.rwth-aachen.de</a><br class="">

Web: <a href="http://www.aia.rwth-aachen.de" class="">http://www.aia.rwth-aachen.de</a></div>

</span></div>

</span></div>

</div>

<br class="">

</body>

</html>