diff --git a/backport-fixbug-increase-maximum-number-of-cpus-rdma.patch b/backport-fixbug-increase-maximum-number-of-cpus-rdma.patch
new file mode 100644
index 0000000000000000000000000000000000000000..bba1d01e227eea3ee95ce96b5f5099cde301fbc1
--- /dev/null
+++ b/backport-fixbug-increase-maximum-number-of-cpus-rdma.patch
@@ -0,0 +1,27 @@
+From c381cfa26ba6163b9cc51212702e64bf1d83f838 Mon Sep 17 00:00:00 2001
+From: swimlessbird <52704385+swimlessbird@users.noreply.github.com>
+Date: Fri, 17 Sep 2021 14:35:05 +0800
+Subject: [PATCH] ibdiags: Increase maximum number of CPUs
+
+In modern systems, the old limit (8) is small enough, so increase
+to something larger (256).
+
+Signed-off-by: Suwan Sun <swimlessbird@gmail.com>
+Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
+---
+ infiniband-diags/ibsysstat.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/infiniband-diags/ibsysstat.c b/infiniband-diags/ibsysstat.c
+index 6ff7ca0c4..73972d039 100644
+--- a/infiniband-diags/ibsysstat.c
++++ b/infiniband-diags/ibsysstat.c
+@@ -41,7 +41,7 @@
+ 
+ #include "ibdiag_common.h"
+ 
+-#define MAX_CPUS 8
++#define MAX_CPUS 256
+ 
+ static struct ibmad_port *srcport;
+ 
diff --git a/rdma-core-35.0.tar.gz b/rdma-core-35.0.tar.gz
deleted file mode 100644
index 226137c258a735e7bb0b8812543f08cfc423d3f6..0000000000000000000000000000000000000000
Binary files a/rdma-core-35.0.tar.gz and /dev/null differ
diff --git a/rdma-core-35.1.tar.gz b/rdma-core-35.1.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..504375077359244632cf12625777c65076935774
Binary files /dev/null and b/rdma-core-35.1.tar.gz differ
diff --git a/rdma-core.spec b/rdma-core.spec
index f3eb78310f440769086532569ce96e0d206197af..ecbbf47cc9f601642c71c123ca6b849e0a39504c 100644
--- a/rdma-core.spec
+++ b/rdma-core.spec
@@ -1,17 +1,18 @@
 Name:           rdma-core
-Version:        35.0
+Version:        35.1
 Release:        1
 Summary:        RDMA core userspace libraries and daemons
 License:        GPLv2 or BSD
 Url:            https://github.com/linux-rdma/rdma-core
 Source:         https://github.com/linux-rdma/rdma-core/releases/download/v%{version}/%{name}-%{version}.tar.gz
+Patch0:         backport-fixbug-increase-maximum-number-of-cpus-rdma.patch
 
 BuildRequires:  binutils cmake >= 2.8.11 gcc libudev-devel pkgconfig pkgconfig(libnl-3.0)
 BuildRequires:  pkgconfig(libnl-route-3.0) valgrind-devel systemd systemd-devel
 BuildRequires:  python3-devel python3-Cython python3 python3-docutils perl-generators
 BuildRequires:  ninja-build
 
-Requires:       dracut kmod systemd pciutils
+Requires:       systemd pciutils
 
 Provides:       ibacm infiniband-diags-compat infiniband-diags libibverbs libibverbs-utils iwpmd libibumad librdmacm librdmacm-utils srp_daemon
 Obsoletes:      ibacm infiniband-diags-compat infiniband-diags libibverbs libibverbs-utils iwpmd libibumad librdmacm librdmacm-utils srp_daemon
@@ -167,9 +168,11 @@ rm -f %{buildroot}/%{_sbindir}/srp_daemon.sh
 %ldconfig_scriptlets
 
 %post
+if [ -x /sbin/udevadm ];then
 /sbin/udevadm trigger --subsystem-match=infiniband --action=change || true
 /sbin/udevadm trigger --subsystem-match=net --action=change || true
 /sbin/udevadm trigger --subsystem-match=infiniband_mad --action=change || true
+fi
 %systemd_post ibacm.service
 %systemd_post srp_daemon.service
 %systemd_post iwpmd.service
@@ -247,6 +250,12 @@ rm -f %{buildroot}/%{_sbindir}/srp_daemon.sh
 %{_mandir}/*
 
 %changelog
+* Thu Dec 09 2021 gaihuiying <gaihuiying1@huawei.com> - 35.1-1
+- Type: requirement
+- ID: NA
+- SUG: NA
+- DESC: update to 35.1
+
 * Fri Jul 2 2021 liyangyang <liyangyang20@huawei.com> - 35.0-1
 - Type: bugfix
 - ID: NA