Hi all Similar to 'crow'
ARM GLX Khadas VIM Pro - Ethernet detected as only 10Mbps and stalled after some traffic I also have the situation where copying large file over LAN stalls. 3.14.29 performance is good 4.12.0 performance not output of 'mii-tool -vvv eth0' differs (e.g. flow-control) -- $ echo * 3.14.29 4.12.0 $ diff */mii-tool-vvv.eth0 4,5c4,5 < 1040 79ad 001c c916 0de1 c5e1 006d 2801 < 4806 0200 3800 0000 0000 4007 0000 2000 --- > 1040 79ad 001c c916 01e1 c5e1 006f 2001 > 5806 0200 3800 0000 0000 4007 0002 2000 7c7 < 211a 0862 30ee 0002 6295 0000 0000 0000 --- > 211a 0863 302c 0002 0000 0020 0000 0000 12c12 < advertising: 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control --- > advertising: 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD -- When capturing with tcpdump stalled transfer shows various retransmits, duplicate acks and fast retransmit issues. # nstat | grep ^Tcp also shows much more exceptions in 4.12.0 versus 3.14.29 $ cat 3.14.29/nstat^Tcp TcpInSegs 18 0.0 TcpOutSegs 11 0.0 TcpExtTCPHPAcks 11 0.0 $ cat 4.12.0/nstat^Tcp TcpPassiveOpens 2 0.0 TcpInSegs 687 0.0 TcpOutSegs 379 0.0 TcpExtDelayedACKs 4 0.0 TcpExtTCPHPHits 207 0.0 TcpExtTCPPureAcks 10 0.0 TcpExtTCPHPAcks 350 0.0 TcpExtTCPAutoCorking 6 0.0 TcpExtTCPOrigDataSent 365 0.0 Perhaps one must compare 3.14.29 am_realtek.c and realtek.c with 4.12.0realtek.c thanks -- Marc Duponcheel Velodroomstraat 74 - 2600 Berchem - Belgium +32 (0)478 68 10 91 - m...@offline.be
