diff --git a/glibc.spec b/glibc.spec
index 73a93b6d24003ab5dfb90695e2307e768859b74e..275f792ce958fdd626a2ba1a727e34b1198624f0 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -65,7 +65,7 @@
 ##############################################################################
 Name: 	 	glibc
 Version: 	2.34
-Release: 	17
+Release: 	18
 Summary: 	The GNU libc libraries
 License:	%{all_license}
 URL: 		http://www.gnu.org/software/glibc/
@@ -117,6 +117,7 @@ Patch30: x86-64-Optimize-load-of-all-bits-set-into-ZMM-regist.patch
 Patch31: mtrace-Fix-output-with-PIE-and-ASLR-BZ-22716.patch
 Patch32: rtld-copy-terminating-null-in-tunables_strdup-bug-28.patch
 Patch33: Use-__executable_start-as-the-lowest-address-for-pro.patch
+Patch34: x86-64-Use-testl-to-check-__x86_string_control.patch
 
 #Patch9000: turn-REP_STOSB_THRESHOLD-from-2k-to-1M.patch
 Patch9001: delete-no-hard-link-to-avoid-all_language-package-to.patch 
@@ -1306,6 +1307,10 @@ fi
 %endif
 
 %changelog
+* Thu Oct 28 2021 Qingqing Li<liqingqing3@huawei.com> - 2.34-18
+- use testl instead of andl to check __x86_string_control to
+  avoid updating __x86_string_control
+
 * Tue Oct 26 2021 Yang Yanchao<yangyanchao6@huawei.com> - 2.34-17
 - Show more debugging information during testsuite
 
diff --git a/x86-64-Use-testl-to-check-__x86_string_control.patch b/x86-64-Use-testl-to-check-__x86_string_control.patch
new file mode 100644
index 0000000000000000000000000000000000000000..363930e209a2b3400809eefbe647cf306b263126
--- /dev/null
+++ b/x86-64-Use-testl-to-check-__x86_string_control.patch
@@ -0,0 +1,38 @@
+From 3c8b9879cab6d41787bc5b14c1748f62fd6d0e5f Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl.tools@gmail.com>
+Date: Sat, 28 Aug 2021 06:10:38 -0700
+Subject: [PATCH] x86-64: Use testl to check __x86_string_control
+
+Use testl, instead of andl, to check __x86_string_control to avoid
+updating __x86_string_control.
+
+Reviewed-by: Carlos O'Donell <carlos@redhat.com>
+---
+ sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S b/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S
+index 9f02624..abde843 100644
+--- a/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S
++++ b/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S
+@@ -325,7 +325,7 @@ L(movsb):
+ 	/* Avoid slow backward REP MOVSB.  */
+ 	jb	L(more_8x_vec_backward)
+ # if AVOID_SHORT_DISTANCE_REP_MOVSB
+-	andl	$X86_STRING_CONTROL_AVOID_SHORT_DISTANCE_REP_MOVSB, __x86_string_control(%rip)
++	testl	$X86_STRING_CONTROL_AVOID_SHORT_DISTANCE_REP_MOVSB, __x86_string_control(%rip)
+ 	jz	3f
+ 	movq	%rdi, %rcx
+ 	subq	%rsi, %rcx
+@@ -333,7 +333,7 @@ L(movsb):
+ # endif
+ 1:
+ # if AVOID_SHORT_DISTANCE_REP_MOVSB
+-	andl	$X86_STRING_CONTROL_AVOID_SHORT_DISTANCE_REP_MOVSB, __x86_string_control(%rip)
++	testl	$X86_STRING_CONTROL_AVOID_SHORT_DISTANCE_REP_MOVSB, __x86_string_control(%rip)
+ 	jz	3f
+ 	movq	%rsi, %rcx
+ 	subq	%rdi, %rcx
+-- 
+1.8.3.1
+