From owner-freebsd-current@FreeBSD.ORG  Sat Jul 28 18:41:54 2007
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Date: Sat, 28 Jul 2007 22:41:50 +0400
From: Alex Keda <admin@lissyara.su>
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Subject: kernel panic on ssh connect
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I update today and when connect to my machine ssh I have kernel panic
================
panic: syncache_add: unexpected tcp flag
cpuid = 0
KDB: enter: panic
[thread pid 32 tid 100037]
stopped at kdb_enter+0x31: leave
===============
after input bt:
===============
tracing pid 32 tid 100037 td 0ÞÁÁÁÁÁÁ0001303680
kdb_enter() at kdb_enter+0x31
panic() at panic+0x173
syncache_add() at syncache_add+0x8ae
tcp_input() at tcp_input+0x98a
ip_input() at ip_input+0xc0
ether_demux() at ether_demux+0x1d9
ether_input() at ether_input+0x1d6
ieee80211_input() at ieee80211_input+0x6f8
ath_rx_proc() at ath_rx_proc+0x3cc
taskqueue_run() at taskqueue_run+0x94
taskqueue_thread_loop() at taskqueue_thread_loop+0x53
fork_exit() at fork_exit+0x12a
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0Â rsp = 0xffffffffa872ad30, rbp = 0 ---
===============
uname -a
FreeBSD acer.lissyara.int.otradno.ru 7.0-CURRENT FreeBSD 7.0-CURRENT #0: 
Sat Jul 28 21:46:52 MSD 2007 
root@acer.lissyara.int.otradno.ru:/usr/obj/usr/src/sys/main-color-console 
amd64

===============
from another mashine:
telnet acer 21 --> kernel panic
telnet acer 22 --> kernel panic
ping acer --> no kernel panic - 1000 ping correct and success