diff --git a/bugfix-fix-cpu-isolate-errors-when-some-cpus-are-.patch b/bugfix-fix-cpu-isolate-errors-when-some-cpus-are-.patch
new file mode 100644
index 0000000000000000000000000000000000000000..304dbd5b9ecded4e7db933acd36c4c019d39f9c8
--- /dev/null
+++ b/bugfix-fix-cpu-isolate-errors-when-some-cpus-are-.patch
@@ -0,0 +1,32 @@
+From 77600e0cd71cd5c34126635b199e7b66f4d74874 Mon Sep 17 00:00:00 2001
+From: Shengwei Luo <luoshengwei@huawei.com>
+Date: Tue, 23 Apr 2024 17:09:10 +0800
+Subject: [PATCH] rasdaemon: Fix cpu isolate errors when some cpus are offline
+ before the service started.
+
+The upstream patch use (sysconf(_SC_NPROCESSORS_ONLN)) instead of 
+(sysconf(_SC_NPROCESSORS_CONF)). However ras_cpu_isolation_init()
+need the all cpu info, so fix it.
+
+Fixes: f1ea76375281 ("rasdaemon: Check CPUs online, not configured")
+Signed-off-by: Shengwei Luo <luoshengwei@huawei.com>
+---
+ ras-events.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/ras-events.c b/ras-events.c
+index ffac02b..1aa6db6 100644
+--- a/ras-events.c
++++ b/ras-events.c
+@@ -950,7 +950,7 @@ int handle_ras_events(int record_events)
+ 	cpus = get_num_cpus(ras);
+ 
+ #ifdef HAVE_CPU_FAULT_ISOLATION
+-	ras_cpu_isolation_init(cpus);
++	ras_cpu_isolation_init(sysconf(_SC_NPROCESSORS_CONF));
+ #endif
+ 
+ #ifdef HAVE_MCE
+-- 
+2.33.0
+
diff --git a/rasdaemon.spec b/rasdaemon.spec
index 04e137659e11ca4b3bb5c8b7f26c289cec328abd..4d4cf2847c0a93306f974cd1ea9412a23d7828b2 100644
--- a/rasdaemon.spec
+++ b/rasdaemon.spec
@@ -1,6 +1,6 @@
 Name:			rasdaemon
 Version:		0.6.7
-Release:		20
+Release:		21
 License:		GPLv2
 Summary:		Utility to get Platform Reliability, Availability and Serviceability (RAS) reports via the Kernel tracing events
 URL:			https://github.com/mchehab/rasdaemon.git
@@ -41,6 +41,7 @@ Patch19: 0001-rasdaemon-use-standard-length-PATH_MAX-for-path-name.patch
 Patch20: rasdaemon-diskerror-fix-incomplete-diskerror-log.patch
 Patch21: 0001-Check-CPUs-online-not-configured.patch
 Patch22: backport-Fix-potential-overflow-with-some-arrays-at-page-isol.patch
+Patch23: bugfix-fix-cpu-isolate-errors-when-some-cpus-are-.patch
 
 Patch6000: backport-rasdaemon-ras-mc-ctl-Fix-script-to-parse-dimm-sizes.patch
 Patch6001: backport-rasdaemon-ras-memory-failure-handler-handle-localtim.patch
@@ -112,6 +113,13 @@ if [ $1 -eq 0 ] ; then
 fi
 
 %changelog
+* Thu Apr 25 2024 yangjunshuo <yangjunshuo@huawei.com> - 0.6.7-21
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:fix cpu isolate errors when some cpus are offline
+  before the service started
+  
 * Tue Apr 23 2024 Bing Xia <xiabing12@h-partners.com> - 0.6.7-20
 - Type:bugfix
 - ID:NA