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Date: Sat, 28 Jul 2007 22:55:25 +0400
From: Alex Keda <admin@lissyara.su>
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Subject: Re: kernel panic on ssh connect
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Alex Keda ÐÉÛÅÔ:
> 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
P.S. Connect from this host to another - successful and no kernel panic