diff --git a/0027-per-thread-reassdata-variables.patch b/0027-per-thread-reassdata-variables.patch
new file mode 100644
index 0000000000000000000000000000000000000000..32fa837105887a34775555495f51f93dbdec81ab
--- /dev/null
+++ b/0027-per-thread-reassdata-variables.patch
@@ -0,0 +1,30 @@
+From 464de9f32488b59d927378cdcc2d08d402af3729 Mon Sep 17 00:00:00 2001
+From: wuchangsheng <wuchangsheng2@huawei.com>
+Date: Thu, 6 Oct 2022 17:42:58 +0800
+Subject: [PATCH] per-thread-reassdata-variables
+
+---
+ src/core/ipv4/ip4_frag.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/src/core/ipv4/ip4_frag.c b/src/core/ipv4/ip4_frag.c
+index 17a4ccd..c60523d 100644
+--- a/src/core/ipv4/ip4_frag.c
++++ b/src/core/ipv4/ip4_frag.c
+@@ -115,8 +115,13 @@ PACK_STRUCT_END
+    IPH_ID(iphdrA) == IPH_ID(iphdrB)) ? 1 : 0
+ 
+ /* global variables */
++#if USE_LIBOS
++static PER_THREAD struct ip_reassdata *reassdatagrams;
++static PER_THREAD u16_t ip_reass_pbufcount;
++#else
+ static struct ip_reassdata *reassdatagrams;
+ static u16_t ip_reass_pbufcount;
++#endif
+ 
+ /* function prototypes */
+ static void ip_reass_dequeue_datagram(struct ip_reassdata *ipr, struct ip_reassdata *prev);
+-- 
+2.27.0
+
diff --git a/lwip.spec b/lwip.spec
index 773d70e674884b4ea52774c07b1a359000ce5cf0..47b52cce0ab33e3c6262787842e509c5ca2215d8 100644
--- a/lwip.spec
+++ b/lwip.spec
@@ -4,7 +4,7 @@
 Summary: lwip is a small independent implementation of the TCP/IP protocol suite
 Name:    lwip
 Version: 2.1.2
-Release: 6
+Release: 7
 License: BSD
 URL:     http://savannah.nongnu.org/projects/lwip/
 Source0: http://download.savannah.nongnu.org/releases/lwip/%{name}-%{version}.zip
@@ -40,6 +40,7 @@ Patch9023:  0023-refactor-event-and-checksum-offload-support.patch
 Patch9024:  0024-refactor-pkt-read-send-performance.patch
 Patch9025:  0025-del-redundant-wait_close-and-move-epoll_events-pos.patch
 Patch9026:  0026-modify-EISCONN-condition.patch
+Patch9027:  0027-per-thread-reassdata-variables.patch
 
 BuildRequires: gcc-c++ dos2unix dpdk-devel
 
@@ -84,6 +85,7 @@ find %{_builddir}/%{name}-%{version} -type f -exec dos2unix -q {} \;
 %patch9024 -p1
 %patch9025 -p1
 %patch9026 -p1
+%patch9027 -p1
 
 %build
 cd %{_builddir}/%{name}-%{version}/src
@@ -99,6 +101,9 @@ cd %{_builddir}/%{name}-%{version}/src
 %{_libdir}/liblwip.a
 
 %changelog
+* Thu Oct 6 2022 wuchangsheng<wuchangsheng2@huawei.com> - 2.1.2-7
+- per thread reassdata variables
+
 * Thu Sep 22 2022 zhujunhao<zhujunhao11@huawei.com> - 2.1.2-6
 - modify EISCONN path condition
   add in_send and send_flag value for gazelle