Date: Wed, 05 Aug 2020 23:03:15 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 248494] if_vmx(4) duplicate packets in netmap mode Message-ID: <bug-248494-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248494 Bug ID: 248494 Summary: if_vmx(4) duplicate packets in netmap mode Product: Base System Version: 12.1-STABLE Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: murat@balaban.io Created attachment 217042 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=217042&action=edit ICMP DUP packets scp'in a file stalls due to DUP packets if the interface is if_vmx(4); and it is opened in NETMAP mode, Steps to reproduce: ifconfig vmx0 -vlanhwtso -vlanhwfilter -vlanhwtag -vlanhwcsum -txcsum -rxcsum -tso4 -tso6 -lro -txcsum6 -rxcsum6 ./bridge -i netmap:vmx0 -i netmap:vmx0^ Copy a file which makes use of the vmx0 interface: scp file root@gw: Connection will stall. Interestingly PINGs seem to be OK until you start scp'in the file. Then they both start getting DUP packets. Please see attached PCAP file and the pic. Environment: root@OPNsense:~ # uname -a FreeBSD OPNsense.localdomain 12.1-STABLE FreeBSD 12.1-STABLE #2 677f5a8efda(stable/12)-dirty: Tue Aug 4 14:55:58 PDT 2020 root@client_bsd12:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64 -- You are receiving this mail because: You are the assignee for the bug.help
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