ovs版本为2.13.1，dpdk版本为19.11.1
linux系统使用ovs-dpdk，创建一个ovs网桥，datapath_path为netdev，然后把两个物理网口的驱动改为vfio，再把它们添加到ovs网桥上.
当两个物理网口没插网线的时候，系统里的ovs-vswitchd进程的内存使用率会持续增长，最后被oom killer给杀掉，把dpdk升级到19.11.3版本就不再有这个问题。
请问有没有人遇到过这个问题，如果遇到过，能否告诉我是dpdk那部分代码的问题，应该打哪个patch？
附（ovs-vsctl show以及top命令的返回结果）：
# ovs-vsctl show
800ba786-5c0c-4b67-8565-eb04c7a3f495
Manager "ptcp:6640:127.0.0.1"
Bridge sw-000003
datapath_type: netdev
Port sw-000003
Interface sw-000003
type: internal
Port sw-000003-bond
Interface enp217s0f0
type: dpdk
options: {dpdk-devargs="0000:d9:00.0"}
Interface enp219s0f0
type: dpdk
options: {dpdk-devargs="0000:db:00.0"}
top - 14:42:14 up 4 days, 4:50, 5 users, load average: 3.98, 3.75, 3.56
Threads: 119 total, 2 running, 117 sleeping, 0 stopped, 0 zombie
%Cpu(s): 6.5 us, 1.2 sy, 0.0 ni, 92.3 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 13153808+total, 36631540 free, 94290080 used, 616472 buff/cache
KiB Swap: 30719996 total, 29905924 free, 814072 used. 36467416 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
198888 root 10 -10 526.9g 7.3g 26472 R 99.9 5.8 3:31.20 pmd-c37/id:106
198885 root 10 -10 526.9g 7.3g 26472 R 99.7 5.8 3:31.01 pmd-c38/id:103
198504 root 10 -10 526.9g 7.3g 26472 S 3.0 5.8 0:08.06 ovs-vswitchd
199027 root 10 -10 526.9g 7.3g 26472 S 0.7 5.8 0:00.94 handler214
199064 root 10 -10 526.9g 7.3g 26472 S 0.7 5.8 0:01.32 revalidator251
199067 root 10 -10 526.9g 7.3g 26472 S 0.7 5.8 0:01.21 revalidator254
199068 root 10 -10 526.9g 7.3g 26472 S 0.7 5.8 0:01.24 revalidator255
198735 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:00.08 dpdk_watchdog1
198737 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:01.00 urcu2
199013 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:00.24 revalidator200
199016 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:00.22 revalidator203
199017 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:00.23 revalidator204
199018 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:00.21 revalidator205
199028 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:00.80 handler215
199029 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:00.62 handler216
199030 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:00.51 handler217
199033 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:00.29 handler220
199036 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:00.23 handler223
199039 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:00.19 handler226
199061 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:01.74 revalidator248
199062 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:01.33 revalidator249
199063 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:01.34 revalidator250
199065 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:01.35 revalidator252
199070 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:01.38 revalidator257
199071 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:01.37 revalidator258
199072 root 10 -10 526.9g 7.3g 26472 S 0.3 5.8 0:01.33 revalidator259
198505 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 eal-intr-thread
198506 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 rte_mp_handle
198827 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 ct_clean51
198828 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 ipf_clean52
198879 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c12/id:101
198884 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c27/id:102
198886 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c39/id:104
198887 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c36/id:105
198889 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c25/id:107
198890 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c14/id:108
198891 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c01/id:109
198892 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c24/id:110
198893 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c02/id:111
198894 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c26/id:112
198895 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c15/id:113
198896 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c04/id:114
198897 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c03/id:115
198898 root 10 -10 526.9g 7.3g 26472 S 0.0 5.8 0:00.00 pmd-c13/id:116