Index: b/src/hotspot/os_cpu/linux_zero/globals_linux_zero.hpp
===================================================================
--- a/src/hotspot/os_cpu/linux_zero/globals_linux_zero.hpp
+++ b/src/hotspot/os_cpu/linux_zero/globals_linux_zero.hpp
@@ -34,7 +34,11 @@
 define_pd_global(bool,  DontYieldALot,           false);
 define_pd_global(intx,  ThreadStackSize,         1536);
 #ifdef _LP64
+#if defined(PPC64) || defined(__s390x__)
+define_pd_global(intx,  VMThreadStackSize,       1600);
+#else
 define_pd_global(intx,  VMThreadStackSize,       1024);
+#endif
 #else
 define_pd_global(intx,  VMThreadStackSize,       512);
 #endif // _LP64
Index: b/make/autoconf/boot-jdk.m4
===================================================================
--- a/make/autoconf/boot-jdk.m4
+++ b/make/autoconf/boot-jdk.m4
@@ -431,6 +431,9 @@ AC_DEFUN_ONCE([BOOTJDK_SETUP_BOOT_JDK_AR
   fi
   ADD_JVM_ARG_IF_OK([-Xmx${JVM_MAX_HEAP}M],boot_jdk_jvmargs_big,[$JAVA])
   ADD_JVM_ARG_IF_OK([-XX:ThreadStackSize=$STACK_SIZE],boot_jdk_jvmargs_big,[$JAVA])
+  if test "$VAR_CPU" = s390x; then
+    ADD_JVM_ARG_IF_OK([-Xss1600k],boot_jdk_jvmargs_big,[$JAVA])
+  fi
 
   AC_MSG_RESULT([$boot_jdk_jvmargs_big])
 
@@ -460,6 +463,9 @@ AC_DEFUN_ONCE([BOOTJDK_SETUP_BOOT_JDK_AR
   ADD_JVM_ARG_IF_OK([-XX:+UseSerialGC],boot_jdk_jvmargs_small,[$JAVA])
   ADD_JVM_ARG_IF_OK([-Xms32M],boot_jdk_jvmargs_small,[$JAVA])
   ADD_JVM_ARG_IF_OK([-Xmx512M],boot_jdk_jvmargs_small,[$JAVA])
+  if test "$VAR_CPU" = s390x; then
+    ADD_JVM_ARG_IF_OK([-Xss1600k],boot_jdk_jvmargs_small,[$JAVA])
+  fi
   ADD_JVM_ARG_IF_OK([-XX:TieredStopAtLevel=1],boot_jdk_jvmargs_small,[$JAVA])
 
   AC_MSG_RESULT([$boot_jdk_jvmargs_small])
Index: b/make/autoconf/build-performance.m4
===================================================================
--- a/make/autoconf/build-performance.m4
+++ b/make/autoconf/build-performance.m4
@@ -440,6 +440,9 @@ AC_DEFUN_ONCE([BPERF_SETUP_SMART_JAVAC],
     MX_VALUE=512
   fi
   ADD_JVM_ARG_IF_OK([-Xms${MS_VALUE}M -Xmx${MX_VALUE}M],SJAVAC_SERVER_JAVA_FLAGS,[$SJAVAC_SERVER_JAVA])
+  if test "$VAR_CPU" = s390x; then
+    ADD_JVM_ARG_IF_OK([-Xss1600k],SJAVAC_SERVER_JAVA_FLAGS,[$SJAVAC_SERVER_JAVA])
+  fi
   AC_SUBST(SJAVAC_SERVER_JAVA_FLAGS)
 
   AC_ARG_ENABLE([sjavac], [AS_HELP_STRING([--enable-sjavac],