diff --git a/0029-just-use-origin-loop-if-do-not-have-io.patch b/0029-just-use-origin-loop-if-do-not-have-io.patch
new file mode 100644
index 0000000000000000000000000000000000000000..1b38a3ceb0a46cf29b35af2b50823eb081b44f51
--- /dev/null
+++ b/0029-just-use-origin-loop-if-do-not-have-io.patch
@@ -0,0 +1,26 @@
+From 21aba903a2e0d744eb54a7737bc11585c2be9aa3 Mon Sep 17 00:00:00 2001
+From: haozi007 <liuhao27@huawei.com>
+Date: Fri, 17 Sep 2021 08:18:14 +0100
+Subject: [PATCH] just use origin loop if do not have io
+
+Signed-off-by: haozi007 <liuhao27@huawei.com>
+---
+ src/lxc/start.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/lxc/start.c b/src/lxc/start.c
+index e6e2170..52ea561 100644
+--- a/src/lxc/start.c
++++ b/src/lxc/start.c
+@@ -590,7 +590,7 @@ int lxc_poll(const char *name, struct lxc_handler *handler)
+ 	}
+ #endif
+ 
+-	ret = isulad_safe_mainloop(&descr, -1);
++	ret = lxc_mainloop(&descr, -1);
+ 	close_prot_errno_disarm(descr.epfd);
+ 	if (ret < 0 || !handler->init_died)
+ 		goto out_mainloop_console;
+-- 
+2.20.1
+
diff --git a/lxc.spec b/lxc.spec
index 1c95abb0609be05050b1b9fabec7b61ff63c59b5..663a00196cf7c96b2e075c2bf3fa4e0ea05c1a6b 100644
--- a/lxc.spec
+++ b/lxc.spec
@@ -1,4 +1,4 @@
-%global _release 2021091701
+%global _release 2021091702
 
 Name:           lxc
 Version:        4.0.3
@@ -36,6 +36,7 @@ Patch0025:	0025-get-cgroup-data-len-first-and-malloc-read-buff-by-le.patch
 Patch0026:	0026-coredump-fix-coredump-when-cgroup-get-return-error.patch
 Patch0027:	0027-add-help-for-new-arguments.patch
 Patch0028:	0028-seccomp-init-and-destroy-notifier.cookie.patch
+Patch0029:	0029-just-use-origin-loop-if-do-not-have-io.patch
 
 BuildRequires:  systemd-units git libtool graphviz docbook2X doxygen chrpath
 BuildRequires:  pkgconfig(libseccomp)
@@ -207,6 +208,12 @@ make check
 %{_mandir}/*/man7/%{name}*
 
 %changelog
+* Fri Sep 17 2021 haozi007<liuhao27@huawei.com> - 4.0.3-2021091702
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:just use origin loop if do not have io
+
 * Fri Sep 17 2021 zhangxiaoyu <zhangxiaoyu58@huawei.com> - 4.0.3-2021091701
 - Type:bugfix
 - ID:NA
diff --git a/series.conf b/series.conf
index 7d26b20e6b9210971630c7496f9e35b62784d375..2454c4bfd80a7606da7d23948a64ee4a9a4480d9 100644
--- a/series.conf
+++ b/series.conf
@@ -26,3 +26,4 @@
 0026-coredump-fix-coredump-when-cgroup-get-return-error.patch
 0027-add-help-for-new-arguments.patch
 0028-seccomp-init-and-destroy-notifier.cookie.patch
+0029-just-use-origin-loop-if-do-not-have-io.patch