Date: Thu, 15 Dec 2016 17:23:44 +0500 From: "Eugene M. Zheganin" <emz@norma.perm.ru> To: freebsd-stable@freebsd.org Cc: freebsd-net <freebsd-net@freebsd.org> Subject: sonewconn: pcb [...]: Listen queue overflow to human-readable form Message-ID: <58528B50.8030600@norma.perm.ru>
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Hi. Sometimes on one of my servers I got dmesg full of sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (6 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (2 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (1 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (15 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (12 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (10 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (16 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (16 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (22 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (6 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (6 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (1 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (9 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (5 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (18 occurrences) sonewconn: pcb 0xfffff80373aec000: Listen queue overflow: 49 already in queue awaiting acceptance (4 occurrences) but at the time of investigation the socket is already closed and lsof cannot show me the owner. I wonder if the kernel can itself decode this output and write it in the human-readable form ? Thanks. Eugene.
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