add suppressions from libunwind.

https://github.com/JuliaLang/julia/issues/4533 reports the same errors we have on ci as libunwind's.
I have some more locally which are more annoying, though.

diff --git a/tools/simgrid.supp b/tools/simgrid.supp
index ce06e6b..04ac719 100644 (file)
--- a/tools/simgrid.supp
+++ b/tools/simgrid.supp
@@ -159,3 +159,14 @@
    ...
    fun:luaD_precall
 }
+
+# libunwind seems to be using msync poorly, thus triggering these
+# https://github.com/JuliaLang/julia/issues/4533
+{
+   msync unwind
+   Memcheck:Param
+   msync(start)
+   ...
+   obj:*/libpthread*.so
+   ...
+}