[问题描述] 使用 Anolis OS 8.4 龙芯版 4.19.190-3.an8.loongarch64 环境 在测试流量控制功能时报错， iproute-tc包流量统计功能报错，Error: Specified qdisc not found. 【测试环境】 [内核] 内核： [root@localhost ~]# uname -r 4.19.190-3.an8.loongarch64 # cat /etc/os-release NAME="Anolis OS" VERSION="8.4" ID="anolis" ID_LIKE="rhel fedora centos" VERSION_ID="8.4" PLATFORM_ID="platform:an8" PRETTY_NAME="Anolis OS 8.4" ANSI_COLOR="0;31" HOME_URL="https://openanolis.cn/" # lscpu Architecture: loongarch64 Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 1 Core(s) per socket: 4 Socket(s): 1 NUMA node(s): 1 CPU family: Loongson-64bit Model name: Loongson-3A5000LL BogoMIPS: 4600.00 L1d cache: 64K L1i cache: 64K L2 cache: 256K L3 cache: 16384K NUMA node0 CPU(s): 0-3 Flags: cpucfg lam ual fpu lsx lasx complex crypto lvz lbt_x86 lbt_arm lbt_mips # free -h total used free shared buff/cache available Mem: 15Gi 1.1Gi 12Gi 21Mi 1.7Gi 12Gi Swap: 7.9Gi 0B 7.9Gi [问题复现] [root@localhost ~]# ifconfig enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 30.240.156.103 netmask 255.255.248.0 broadcast 30.240.159.255 inet6 fe80::223:9eff:fe25:9234 prefixlen 64 scopeid 0x20<link> ether 00:23:9e:25:92:34 txqueuelen 1000 (Ethernet) RX packets 315411 bytes 329958882 (314.6 MiB) RX errors 0 dropped 5 overruns 0 frame 0 TX packets 338455 bytes 32682450 (31.1 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 45 base 0x4000 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 140 bytes 30411 (29.6 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 140 bytes 30411 (29.6 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255 ether 52:54:00:ed:f0:af txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 执行： [root@localhost ~]# tc qdisc add dev enp3s0 root handle 1: htb Error: Specified qdisc not found.
*** Bug 193 has been marked as a duplicate of this bug. ***
rc2仍存在 [root@localhost ~]# tc qdisc add dev enp3s0 root handle 1: htb Error: Specified qdisc not found. [root@localhost ~]#
rc4 内核下 流量统计功能验证通过： [root@localhost ~]# rpm -qa | grep iproute-tc iproute-tc-5.9.0-4.an8.loongarch64 # 1. 建立一个队列，绑定到网络物理设备bond0上，其编号为1:0 # tc qdisc add dev bond0 root handle 1: htb [root@localhost ~]# tc qdisc add dev enp3s0 root handle 1: htb # 2. 查看队列情况 # tc qdisc show dev bond0 [root@localhost ~]# tc qdisc show dev enp3s0 qdisc htb 1: root refcnt 2 r2q 10 default 0 direct_packets_stat 115 direct_qlen 1000 可以查看到device enp3s0上的流量统计结果 测试通过 [root@localhost ~]# ifconfig enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 30.240.156.103 netmask 255.255.248.0 broadcast 30.240.159.255 inet6 fe80::223:9eff:fe25:9234 prefixlen 64 scopeid 0x20<link> ether 00:23:9e:25:92:34 txqueuelen 1000 (Ethernet) RX packets 30649 bytes 17848256 (17.0 MiB) RX errors 0 dropped 5 overruns 0 frame 0 TX packets 25368 bytes 8027851 (7.6 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 45 base 0x4000 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 16518 bytes 1002948 (979.4 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 16518 bytes 1002948 (979.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
流量控制功能验证： 我用的 replace 设置 超时 成功了 1. 在其他环境ping 测试机 [xgj01228606@loginhost1.et15sqa /home/xgj01228606] $ping 30.240.156.103 PING 30.240.156.103 (30.240.156.103) 56(84) bytes of data. 64 bytes from 30.240.156.103: icmp_seq=1 ttl=49 time=28.3 ms 64 bytes from 30.240.156.103: icmp_seq=2 ttl=49 time=28.2 ms 2. 设置add 失败，更换 replace 设置 延迟100ms [root@localhost ~]# tc qdisc show qdisc noqueue 0: dev lo root refcnt 2 qdisc htb 1: dev enp3s0 root refcnt 2 r2q 10 default 0 direct_packets_stat 463 direct_qlen 1000 [root@localhost ~]# [root@localhost ~]# tc qdisc replace dev enp3s0 root netem delay 100ms [root@localhost ~]# 3.在其他环境ping 测试机 [xgj01228606@loginhost1.et15sqa /home/xgj01228606] $ping 30.240.156.103 PING 30.240.156.103 (30.240.156.103) 56(84) bytes of data. 64 bytes from 30.240.156.103: icmp_seq=1 ttl=49 time=128 ms 64 bytes from 30.240.156.103: icmp_seq=2 ttl=49 time=128 ms 64 bytes from 30.240.156.103: icmp_seq=3 ttl=49 time=128 ms 4. 可以看到时延由42ms增加100ms到142ms 恢复环境 [root@localhost ~]# tc qdisc del dev enp3s0 root netem delay 100ms [root@localhost ~]# 5.此时 再次 ping 测试机 [xgj01228606@loginhost1.et15sqa /home/xgj01228606] $ping 30.240.156.103 PING 30.240.156.103 (30.240.156.103) 56(84) bytes of data. 64 bytes from 30.240.156.103: icmp_seq=1 ttl=49 time=28.2 ms 64 bytes from 30.240.156.103: icmp_seq=2 ttl=49 time=28.2 ms 64 bytes from 30.240.156.103: icmp_seq=3 ttl=49 time=28.2 ms [root@localhost ~]# uname -r 4.19.190-4.an8.loongarch64 [root@localhost ~]#
清除原有设置后，add 方法可用，设置正常，测试pass，该bug 关闭 [root@localhost ~]# uname -r 4.19.190-4.an8.loongarch64 1. 清除原有设置 [root@localhost ~]# tc qdisc del dev enp3s0 root netem delay 100ms [root@localhost ~]# 2. ping 测试 [xgj01228606@loginhost1.et15sqa /home/xgj01228606] $ping 30.240.156.103 PING 30.240.156.103 (30.240.156.103) 56(84) bytes of data. 64 bytes from 30.240.156.103: icmp_seq=1 ttl=49 time=28.2 ms 64 bytes from 30.240.156.103: icmp_seq=2 ttl=49 time=28.2 ms 64 bytes from 30.240.156.103: icmp_seq=3 ttl=49 time=28.2 ms ^C --- 30.240.156.103 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1999ms rtt min/avg/max/mdev = 28.236/28.248/28.268/0.137 ms 3. add 设置 [root@localhost ~]# tc qdisc add dev enp3s0 root netem delay 100ms [root@localhost ~]# 4. ping 测试 [xgj01228606@loginhost1.et15sqa /home/xgj01228606] $ping 30.240.156.103 PING 30.240.156.103 (30.240.156.103) 56(84) bytes of data. 64 bytes from 30.240.156.103: icmp_seq=1 ttl=49 time=128 ms 64 bytes from 30.240.156.103: icmp_seq=2 ttl=49 time=128 ms ^C --- 30.240.156.103 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1000ms rtt min/avg/max/mdev = 128.254/128.265/128.277/0.358 ms [root@localhost ~]# date Tue 18 Jan 2022 01:54:12 PM CST [root@localhost ~]#