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Date:      Thu, 24 Apr 2003 14:26:41 -0700
From:      Gordon Tetlow <gordont@gnf.org>
To:        current@FreeBSD.org
Subject:   LOR in NFS server
Message-ID:  <20030424212641.GU9682@roark.gnf.org>

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I generated it while running nessus against my local machine.

lock order reversal
 1st 0xc9384c44 inp (inp) @ /local/usr.src/sys/netinet/tcp_input.c:649
 2nd 0xc05aa84c tcp (tcp) @ /local/usr.src/sys/netinet/tcp_usrreq.c:621
Stack backtrace:
backtrace(c04e9f03,c05aa84c,c04f0770,c04f0770,c04f1ae4) at backtrace+0x17
witness_lock(c05aa84c,8,c04f1ae4,26d,0) at witness_lock+0x692
_mtx_lock_flags(c05aa84c,0,c04f1ae4,26d,0) at _mtx_lock_flags+0xb2
tcp_usr_rcvd(c8a63800,80,c04ea514,df0e9a9c,3b9aca00) at tcp_usr_rcvd+0x30
soreceive(c8a63800,df0e9ad8,df0e9ae4,df0e9adc,0) at soreceive+0x86a
nfsrv_rcv(c8a63800,c6d4fb00,4,34,10430) at nfsrv_rcv+0x8a
sowakeup(c8a63800,c8a6384c,c04f11d5,434,108) at sowakeup+0x97
tcp_input(c21f5400,14,c0304f91,df0e9c5c,c02f60ba) at tcp_input+0x1341
ip_input(c21f5400,0,c04efede,e9,c21bd280) at ip_input+0x7b0
swi_net(0,0,c04e4eed,217,c21c73c0) at swi_net+0x111
ithread_loop(c21c6100,df0e9d48,c04e4d5d,314,c21c8d10) at ithread_loop+0x16c
fork_exit(c02ec2d0,c21c6100,df0e9d48) at fork_exit+0xc0
fork_trampoline() at fork_trampoline+0x1a
--- trap 0x1, eip = 0, esp = 0xdf0e9d7c, ebp = 0 ---

-gordon

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