Date: Wed, 23 Nov 2016 17:03:12 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 214630] netstat displays spurious count for connections in LAST_ACK state inside jail with VIMAGE kernel Message-ID: <bug-214630-2472-M3VwVJvAZE@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-214630-2472@https.bugs.freebsd.org/bugzilla/> References: <bug-214630-2472@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D214630 --- Comment #9 from Palle Girgensohn <girgen@FreeBSD.org> --- I'm investigating strange sporadical short outages to the network i jails, = for a minute or less. They are related to=20 kernel: sonewconn: pcb 0xfffff80bfa0263a0: Listen queue overflow: 767 alrea= dy in queue awaiting acceptance (365 occurrences) Maybe they are not related at all, but I do see this kind of reports: TCP connection count by state: 0 connections in CLOSED state 11 connections in LISTEN state 0 connections in SYN_SENT state 3 connections in SYN_RCVD state 136 connections in ESTABLISHED state 4 connections in CLOSE_WAIT state 8 connections in FIN_WAIT_1 state 7 connections in CLOSING state 18446744073709551578 connections in LAST_ACK state 671 connections in FIN_WAIT_2 state 846 connections in TIME_WAIT state the large number is obviously < 0 so something is sending double packets. We use VIMAGE with netgraph interfaces (not epair). As I said, maybe it is not related to the sonewconn problem, I don't know enough about the internals, but we do see the same strange reports from netstat. --=20 You are receiving this mail because: You are the assignee for the bug.=
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