From e7552d35e048047fee504d3946d3155deec10edb Mon Sep 17 00:00:00 2001
From: Leonardo de Moura <leonardo@microsoft.com>
Date: Fri, 15 Nov 2013 11:33:34 -0800
Subject: [PATCH] chore(memcheck): hide another tcmalloc bug

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
---
 src/memcheck.supp | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/memcheck.supp b/src/memcheck.supp
index 395b2ad22..1fb66eee4 100644
--- a/src/memcheck.supp
+++ b/src/memcheck.supp
@@ -116,6 +116,27 @@
    ...
 }
 
+{
+   # This entry suppresses the warning caused by a bug in tcmalloc
+   # It is the equivalent of TCMalloc_Bug2 for realloc
+   TCMalloc_Bug3
+   Memcheck:Param
+   msync(start)
+   obj:*/libpthread-2.*.*
+   obj:*/libunwind.so.*
+   ...
+   fun:_UL*_step
+   fun:*GetStackTrace*
+   fun:*PageHeap*GrowHeap*
+   fun:*PageHeap*New*
+   fun:*CentralFreeList*Populate*
+   fun:*CentralFreeList*FetchFromSpansSafe*
+   fun:*CentralFreeList*RemoveRange*
+   fun:*ThreadCache*FetchFromCentralCache*
+   fun:realloc
+   ...
+}
+
 {
    # This entry suppresses the warning caused by a bug in luajit 2.0
    LuaJIT_Bug1