Date: Tue, 09 Feb 2021 20:00:54 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 252913] [tcp] Using RACK leaks mbufs Message-ID: <bug-252913-7501-DDTTsZudCG@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-252913-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-252913-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D252913 --- Comment #30 from iron.udjin@gmail.com --- (In reply to Michael Tuexen from comment #27) Today I had luck to capture the beginning of connection which being looping= in LAST_ACK state. Uptime 10 days. RAM usage: 1732691K/66655K/1799346K bytes allocated to network (current/cache/total) ...even at night when ~500 total connections. # sysctl net.inet.tcp.rack net.inet.tcp.rack.clear: 0 net.inet.tcp.rack.tlp_nada: 0 net.inet.tcp.rack.idle_reduce_oninput: 0 net.inet.tcp.rack.prog_drops: 0 net.inet.tcp.rack.runtsacks: 206499410 net.inet.tcp.rack.hit_tlp_method2: 1174282781 net.inet.tcp.rack.hit_tlp_method: 816793264 net.inet.tcp.rack.tlp_calc_entered: 4296358296 net.inet.tcp.rack.sack_short: 144131132 net.inet.tcp.rack.sack_restart: 0 net.inet.tcp.rack.sack_long: 14627478 net.inet.tcp.rack.split_limited: 155396 net.inet.tcp.rack.alloc_limited_conns: 1673 net.inet.tcp.rack.alloc_limited: 6547638618 net.inet.tcp.rack.allocemerg: 0 net.inet.tcp.rack.allochard: 0 net.inet.tcp.rack.allocs: 3101693560 net.inet.tcp.rack.saw_enetunreach: 0 net.inet.tcp.rack.saw_enobufs: 0 net.inet.tcp.rack.unpaced: 8990056544 net.inet.tcp.rack.paced: 328607481 net.inet.tcp.rack.arm_tlp: 0 net.inet.tcp.rack.arm_rack: 0 net.inet.tcp.rack.rack_to_tot: 4001642380 net.inet.tcp.rack.tlp_retran_fail: 1353037 net.inet.tcp.rack.tlp_retran_bytes: 7637629125 net.inet.tcp.rack.tlp_retran: 14327372 net.inet.tcp.rack.tlp_new: 2632317 net.inet.tcp.rack.tlp_to_total: 16766301 net.inet.tcp.rack.reordering: 21745075 net.inet.tcp.rack.findhigh: 480921 net.inet.tcp.rack.tsnf: 0 net.inet.tcp.rack.prrsndnew: 95096931 net.inet.tcp.rack.prrsndret: 6697135814 net.inet.tcp.rack.badfr_bytes: 8262477089 net.inet.tcp.rack.badfr: 7695368 net.inet.tcp.rack.inc_var: 0 net.inet.tcp.rack.pktdelay: 1 net.inet.tcp.rack.reorder_fade: 60000 net.inet.tcp.rack.rtt_tlp_thresh: 1 net.inet.tcp.rack.reorder_thresh: 2 net.inet.tcp.rack.earlyrecovery: 1 net.inet.tcp.rack.earlyrecoveryseg: 6 net.inet.tcp.rack.minto: 1 net.inet.tcp.rack.prr_sendalot: 1 net.inet.tcp.rack.hptsi_seg_max: 40 net.inet.tcp.rack.hptsi_every_seg: 1 net.inet.tcp.rack.hptsi_reduces: 4 net.inet.tcp.rack.tlp_cwnd_flag: 0 net.inet.tcp.rack.recovery_prop: 10 net.inet.tcp.rack.recovery_loss_prop: 0 net.inet.tcp.rack.tlp_retry: 2 net.inet.tcp.rack.maxrto: 30000 net.inet.tcp.rack.minrto: 30 net.inet.tcp.rack.rack_tlimit: 0 net.inet.tcp.rack.rack_tlp_in_recovery: 1 net.inet.tcp.rack.send_oldest: 0 net.inet.tcp.rack.sblklimit: 128 net.inet.tcp.rack.precache: 1 net.inet.tcp.rack.tlpminto: 10 net.inet.tcp.rack.delayed_ack: 200 net.inet.tcp.rack.sackfiltering: 1 net.inet.tcp.rack.bb_verbose: 0 net.inet.tcp.rack.idle_reduce_high: 0 net.inet.tcp.rack.min_pace_segs: 6 net.inet.tcp.rack.min_pace_time: 0 net.inet.tcp.rack.tlpmethod: 2 net.inet.tcp.rack.data_after_close: 1 net.inet.tcp.rack.rate_sample_method: 1 net.inet.tcp.rack.map_splitlimit: 256 net.inet.tcp.rack.map_limit: 1024 Michael, I just sent you .pcap file. Please let me know in case you need any other info. --=20 You are receiving this mail because: You are on the CC list for the bug.=
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