diff --git a/tools/ci/amd64/clang/msan.sh b/tools/ci/amd64/clang/msan.sh
index dd9997f..503b219 100755
--- a/tools/ci/amd64/clang/msan.sh
+++ b/tools/ci/amd64/clang/msan.sh
@@ -37,6 +37,16 @@ cmake . \
 -lc++abi" \
 && cmake --build ./build --target='surface_tests' -j`nproc`
 
+echo "READELF_________________________________________"
+readelf -Ws /msan/lib/libX11.so.6 2>/dev/null | c++filt | egrep -i 'XData32|XChangeProperty|XFlush|_XSend|_XData'
+readelf -Ws /msan/lib/libxcb.so.1 2>/dev/null | c++filt | egrep -i 'write_vec|_xcb_conn_wait|_xcb_out_send|xcb_writev'
+readelf -Ws /drone/src/build/modules/surface/surface_tests 2>/dev/null | c++filt | egrep -i 'writev|read_iovec|create_surface_component'
+echo "_________________________________________READELF"
+echo "ADDR2LINE_________________________________________"
+addr2line -f -C -e /msan/lib/libX11.so.6 0x33564b
+addr2line -f -C -e /drone/src/build/modules/surface/surface_tests 0xfea67
+echo "_________________________________________ADDR2LINE"
+
 export MSAN_SYMBOLIZER_PATH="$(which llvm-symbolizer)"
 export MSAN_OPTIONS="fast_unwind_on_malloc=0:verbosity=2:report_umrs=1"
 for test in $(find ./build -type f -name '*_tests' -executable); do