diff --git a/valgrind-3.10.1-demangle-q.patch b/valgrind-3.10.1-demangle-q.patch
new file mode 100644
index 0000000..2cc45d6
--- /dev/null
+++ b/valgrind-3.10.1-demangle-q.patch
@@ -0,0 +1,75 @@
+commit 3d62ad9a0158a1fe56cf3cff9fc49bfb6d504b27
+Author: florian <florian@a5019735-40e9-0310-863c-91ae7b9d1cf9>
+Date:   Mon Nov 24 22:30:49 2014 +0000
+
+    Change the testcase to not depend on the type of 'this' in the output.
+    GCC 4.9.2 and GCC 4.8.x have different opinions about that variable's type.
+    
+    
+    git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14780 a5019735-40e9-0310-863c-91ae7b9d1cf9
+
+diff --git a/memcheck/tests/demangle.cpp b/memcheck/tests/demangle.cpp
+index 6fb2b98..ff15fe1 100644
+--- a/memcheck/tests/demangle.cpp
++++ b/memcheck/tests/demangle.cpp
+@@ -16,7 +16,7 @@ class magic {
+ public:
+   T xyzzy(T *p)
+   {
+-    return (new abc::def<int,typeof(this)>)->xyzzy(p, 0);
++    return (new abc::def<int,typeof(*this)>)->xyzzy(p, 0);
+   }
+ };
+ 
+diff --git a/memcheck/tests/demangle.stderr.exp b/memcheck/tests/demangle.stderr.exp
+index b79c638..2124517 100644
+--- a/memcheck/tests/demangle.stderr.exp
++++ b/memcheck/tests/demangle.stderr.exp
+@@ -1,6 +1,6 @@
+ 
+ Conditional jump or move depends on uninitialised value(s)
+-   at 0x........: abc::def<int, magic<int>* const>::xyzzy(int*, magic<int>* const*) (demangle.cpp:9)
++   at 0x........: abc::def<int, magic<int> >::xyzzy(int*, magic<int>*) (demangle.cpp:9)
+    by 0x........: magic<int>::xyzzy(int*) (demangle.cpp:19)
+    by 0x........: main (demangle.cpp:27)
+ 
+commit 79a59b53abd68d3d5df2f77bfbe23d6c3eab0e4b
+Author: mjw <mjw@a5019735-40e9-0310-863c-91ae7b9d1cf9>
+Date:   Wed Jun 3 09:52:00 2015 +0000
+
+    Run memcheck/tests/demangle with -q.
+    
+    The interesting part is the demangled backtrace in the error message.
+    Suppress the memory allocation/blocks summary which can differ slightly
+    depending on the underlying arch/libs.
+    
+    git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15308 a5019735-40e9-0310-863c-91ae7b9d1cf9
+
+diff --git a/memcheck/tests/demangle.stderr.exp b/memcheck/tests/demangle.stderr.exp
+index 2124517..6e7467d 100644
+--- a/memcheck/tests/demangle.stderr.exp
++++ b/memcheck/tests/demangle.stderr.exp
+@@ -1,16 +1,5 @@
+-
+ Conditional jump or move depends on uninitialised value(s)
+    at 0x........: abc::def<int, magic<int> >::xyzzy(int*, magic<int>*) (demangle.cpp:9)
+    by 0x........: magic<int>::xyzzy(int*) (demangle.cpp:19)
+    by 0x........: main (demangle.cpp:27)
+ 
+-
+-HEAP SUMMARY:
+-    in use at exit: 6 bytes in 3 blocks
+-  total heap usage: 3 allocs, 0 frees, 6 bytes allocated
+-
+-For a detailed leak analysis, rerun with: --leak-check=full
+-
+-For counts of detected and suppressed errors, rerun with: -v
+-Use --track-origins=yes to see where uninitialised values come from
+-ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)
+diff --git a/memcheck/tests/demangle.vgtest b/memcheck/tests/demangle.vgtest
+index f6ae038..b65b6d3 100644
+--- a/memcheck/tests/demangle.vgtest
++++ b/memcheck/tests/demangle.vgtest
+@@ -1 +1,2 @@
+ prog: demangle
++vgopts: -q
diff --git a/valgrind.spec b/valgrind.spec
index 694ccd2..44984e4 100644
--- a/valgrind.spec
+++ b/valgrind.spec
@@ -95,6 +95,9 @@ Patch14: valgrind-3.10.1-arm-process_vm_readv_writev.patch
 # Upstream valgrind svn r15305
 Patch15: valgrind-3.10.1-fno-ipa-icf.patch
 
+# Upstream valgrind svn r14780 and r15308
+Patch16: valgrind-3.10.1-demangle-q.patch
+
 %if %{build_multilib}
 # Ensure glibc{,-devel} is installed for both multilib arches
 BuildRequires: /lib/libc.so.6 /usr/lib/libc.so /lib64/libc.so.6 /usr/lib64/libc.so
@@ -208,6 +211,7 @@ Valgrind User Manual for details.
 %patch13 -p1
 %patch14 -p1
 %patch15 -p1
+%patch16 -p1
 
 %build
 # We need to use the software collection compiler and binutils if available.
@@ -368,6 +372,7 @@ echo ===============END TESTING===============
 - Add valgrind-3.10.1-syncfs.patch.
 - Add valgrind-3.10.1-arm-process_vm_readv_writev.patch.
 - Add valgrind-3.10.1-fno-ipa-icf.patch.
+- Add valgrind-3.10.1-demangle-q.patch
 
 * Fri May 22 2015 Mark Wielaard <mjw@redhat.com> - 3.10.1-8
 - Disable extended regtest on arm. The gdb tests hang for unknown reasons.