diff --git a/valgrind-3.10.0-aarch64-getsetsid.patch b/valgrind-3.10.0-aarch64-getsetsid.patch
new file mode 100644
index 0000000..2071029
--- /dev/null
+++ b/valgrind-3.10.0-aarch64-getsetsid.patch
@@ -0,0 +1,29 @@
+diff --git a/coregrind/m_syswrap/syswrap-arm64-linux.c b/coregrind/m_syswrap/syswrap-arm64-linux.c
+index dd13bda..045b9b9 100644
+--- a/coregrind/m_syswrap/syswrap-arm64-linux.c
++++ b/coregrind/m_syswrap/syswrap-arm64-linux.c
+@@ -956,6 +956,8 @@ static SyscallTableEntry syscall_main_table[] = {
+    GENXY(__NR_times,             sys_times),             // 153
+    GENX_(__NR_setpgid,           sys_setpgid),           // 154
+    GENX_(__NR_getpgid,           sys_getpgid),           // 155
++   GENX_(__NR_getsid,            sys_getsid),            // 156
++   GENX_(__NR_setsid,            sys_setsid),            // 157
+    GENXY(__NR_uname,             sys_newuname),          // 160
+    GENXY(__NR_getrlimit,         sys_old_getrlimit),     // 163
+    GENX_(__NR_setrlimit,         sys_setrlimit),         // 164
+@@ -1092,7 +1094,6 @@ static SyscallTableEntry syscall_main_table[] = {
+ //ZZ    GENX_(__NR_getppid,           sys_getppid),        // 64
+ //ZZ 
+ //ZZ    GENX_(__NR_getpgrp,           sys_getpgrp),        // 65
+-//ZZ    GENX_(__NR_setsid,            sys_setsid),         // 66
+ //ZZ    LINXY(__NR_sigaction,         sys_sigaction),      // 67
+ //ZZ //zz    //   (__NR_sgetmask,          sys_sgetmask),       // 68 */* (ANSI C)
+ //ZZ //zz    //   (__NR_ssetmask,          sys_ssetmask),       // 69 */* (ANSI C)
+@@ -1176,7 +1177,6 @@ static SyscallTableEntry syscall_main_table[] = {
+ //ZZ    GENX_(__NR_flock,             sys_flock),          // 143
+ //ZZ    GENX_(__NR_msync,             sys_msync),          // 144
+ //ZZ 
+-//ZZ    GENX_(__NR_getsid,            sys_getsid),         // 147
+ //ZZ    GENX_(__NR_fdatasync,         sys_fdatasync),      // 148
+ //ZZ    LINXY(__NR__sysctl,           sys_sysctl),         // 149
+ //ZZ 
diff --git a/valgrind.spec b/valgrind.spec
index c6d2e0a..d9d539b 100644
--- a/valgrind.spec
+++ b/valgrind.spec
@@ -65,6 +65,9 @@ Patch5: valgrind-3.10.0-old-ppc32-instr-magic.patch
 # KDE#339853 arm64 times syscall unknown
 Patch6: valgrind-3.10.0-aarch64-times.patch
 
+# KDE#339855 arm64 unhandled getsid/setsid syscalls.
+Patch7: valgrind-3.10.0-aarch64-getsetsid.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
@@ -169,6 +172,7 @@ Valgrind User Manual for details.
 %patch4 -p1
 %patch5 -p1
 %patch6 -p1
+%patch7 -p1
 
 %build
 # We need to use the software collection compiler and binutils if available.
@@ -319,6 +323,7 @@ echo ===============END TESTING===============
 %changelog
 * Sat Oct 11 2014 Mark Wielaard <mjw@redhat.com>
 - Add valgrind-3.10.0-aarch64-times.patch
+- Add valgrind-3.10.0-aarch64-getsetsid.patch
 
 * Mon Sep 15 2014 Mark Wielaard <mjw@redhat.com> - 3.10.0-3
 - Add valgrind-3.10.0-old-ppc32-instr-magic.patch.