diff --git a/Backport-JDK-8348554-Enhance-Linux-kernel-version-ch.patch b/Backport-JDK-8348554-Enhance-Linux-kernel-version-ch.patch
index 0e74d63883d714b350a9d8c2d4fe87c28cb76ec5..383b74c166d1be8b15b8c9f1a4867708d353a3f2 100644
--- a/Backport-JDK-8348554-Enhance-Linux-kernel-version-ch.patch
+++ b/Backport-JDK-8348554-Enhance-Linux-kernel-version-ch.patch
@@ -56,13 +56,13 @@ index 7cb862d7c3e..22216a568bc 100644
    FILE*         fh;
    uint64_t      userTicks, niceTicks, systemTicks, idleTicks;
 diff --git a/src/hotspot/os/linux/os_linux.hpp b/src/hotspot/os/linux/os_linux.hpp
-index 029f2aa7a52..f2901480d29 100644
+index 49f2777d1..b8fde8265 100644
 --- a/src/hotspot/os/linux/os_linux.hpp
 +++ b/src/hotspot/os/linux/os_linux.hpp
-@@ -109,7 +109,13 @@ class os::Linux {
-     bool     has_steal_ticks;
+@@ -107,7 +107,13 @@ class os::Linux {
    };
  
+   static int active_processor_count();
 -  static void kernel_version(long* major, long* minor);
 +  static void kernel_version(long* major, long* minor, long* patch);
 +
diff --git a/openjdk-21.spec b/openjdk-21.spec
index 28cec8d6b90a16fc114209ee3c3ff795436a16c5..c2e74a4e25582ca70c9370e4106f13c0b86337d1 100644
--- a/openjdk-21.spec
+++ b/openjdk-21.spec
@@ -905,7 +905,7 @@ Name:    java-21-%{origin}
 Version: %{newjavaver}.%{buildver}
 # This package needs `.rolling` as part of Release so as to not conflict on install with
 # java-X-openjdk. I.e. when latest rolling release is also an LTS release packaged as
-Release: 1
+Release: 2
 
 # java-1.5.0-ibm from jpackage.org set Epoch to 1 for unknown reasons
 # and this change was brought into RHEL-4. java-1.5.0-ibm packages
@@ -1918,6 +1918,9 @@ cjc.mainProgram(args) -- the returns from copy_jdk_configs.lua should not affect
 
 
 %changelog
+* Mon Jul 21 2025 Dingli Zhang <dingli@iscas.ac.cn> - 1:21.0.8.9-2
+- Fix build error for riscv64
+
 * Thu Jul 17 2025 Benshuai5D <benshuai5d@163.com> - 1:21.0.8.9-1
 - huawei-remove-provides-in-kaeprovider-module-info.patch