Oh, 192.168.2.103 is the wifi's IP on the RPI3B+, I redo the test with
lan's ip (192.168.2.107), can't reproduce the bug too.
log on the host:
hwang4@hwang4-Vostro-5390:~/Downloads$ scp
dell-bto-bionic-beaver-osp1-shireen-X44-20200103-22.iso
ubuntu@192.168.2.107:~/lan/
The authenticity of host '192.168.2.107 (192.168.2.107)' can't be established.
ECDSA key fingerprint is SHA256:HbfQtMzTnE9Bl6sg20Y95s6Ruf21ybTJ6T7npMl0Ex4.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.2.107' (ECDSA) to the list of known hosts.
ubuntu@192.168.2.107's password:
dell-bto-bionic-beaver-osp1-shireen-X44-20200103-22.iso
100% 3389MB 7.0MB/s 08:06
log on the RPI3B+:
ubuntu@ubuntu:~/lan$ dmesg
[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[ 0.000000] Linux version 5.3.0-1017-raspi2 (root@zaku) (gcc version 9.2.1
20191008 (Ubuntu 9.2.1-9ubuntu2)) #19+otg SMP Wed Jan 29 12:45:11 CST 2020
(Ubuntu 5.3.0-1017.19+otg-raspi2 5.3.13)
[ 0.000000] Machine model: Raspberry Pi 3 Model B Plus Rev 1.3
[ 0.000000] efi: Getting EFI parameters from FDT:
...
[ 113.962890] audit: type=1400 audit(1581076329.560:38): apparmor="STATUS"
operation="profile_replace" profile="unconfined" name="snap.lxd.lxd" pid=1686
comm="apparmor_parser"
[ 114.104891] audit: type=1400 audit(1581076329.700:39): apparmor="STATUS"
operation="profile_replace" profile="unconfined" name="snap.lxd.migrate"
pid=1687 comm="apparmor_parser"
[ 6029.845036] lan78xx 1-1.1.1:1.0 eth0: No phy led trigger registered for
speed(-1)
[ 6029.853021] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
ubuntu@ubuntu:~/lan$ ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.2.107 netmask 255.255.255.0 broadcast 192.168.2.255
inet6 fe80::ba27:ebff:fece:ca4c prefixlen 64 scopeid 0x20<link>
ether b8:27:eb:ce:ca:4c txqueuelen 1000 (Ethernet)
RX packets 2470290 bytes 3725719810 (3.7 GB)
RX errors 0 dropped 14 overruns 0 frame 0
TX packets 1074945 bytes 72518896 (72.5 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ubuntu@ubuntu:~/lan$ ls -la
total 3470028
drwxrwxr-x 2 ubuntu ubuntu 4096 Feb 7 13:32 .
drwxr-xr-x 8 ubuntu ubuntu 4096 Feb 7 13:32 ..
-rw-rw-r-- 1 ubuntu ubuntu 3553296384 Feb 7 13:40
dell-bto-bionic-beaver-osp1-shireen-X44-20200103-22.iso
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https://bugs.launchpad.net/bugs/1861936
Title:
Raspberry Pi 3 network dies shortly after a burst of SD card IO and
network load ((lan78xx): transmit queue 0 timed out)
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