[PATCH v3 23/29] multipath-tools: mpath-tools.supp: file with valgrind suppressions

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From: Martin Wilck <mwilck@xxxxxxxx>

These leaks are caused by other libraries (libsystemd, glibc,
libgcrypt) and should be ignored when debugging with valgrind

Usage example:

valgrind --suppressions=mpath-tools.supp \
    --leak-check=full --show-leak-kinds=all $COMMAND

Reviewed-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx>
Signed-off-by: Martin Wilck <mwilck@xxxxxxxx>
---
 third-party/valgrind/mpath-tools.supp | 32 +++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 third-party/valgrind/mpath-tools.supp

diff --git a/third-party/valgrind/mpath-tools.supp b/third-party/valgrind/mpath-tools.supp
new file mode 100644
index 0000000..0537fd5
--- /dev/null
+++ b/third-party/valgrind/mpath-tools.supp
@@ -0,0 +1,32 @@
+{
+   glibc _dlerror_run leak: https://stackoverflow.com/questions/1542457/memory-leak-reported-by-valgrind-in-dlopen
+   Memcheck:Leak
+   match-leak-kinds: reachable
+   fun:calloc
+   fun:_dlerror_run
+   fun:dlopen*
+}
+
+{
+   systemd mempools are never freed: https://bugzilla.redhat.com/show_bug.cgi?id=1215670
+   Memcheck:Leak
+   match-leak-kinds: reachable
+   fun:malloc
+   fun:mempool_alloc_tile
+   fun:mempool_alloc0_tile
+   fun:hashmap_base_new
+   fun:hashmap_base_ensure_allocated
+}
+
+{
+   libgcrypt library initialization
+   Memcheck:Leak
+   match-leak-kinds: reachable
+   fun:malloc
+   ...
+   fun:_gcry_xmalloc
+   ...
+   fun:global_init.*
+   ...
+   fun:_dl_init
+}
-- 
2.29.0


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