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FreeBSD lock order reversal (LOR) #175

ID 175
state unknown
responsible
reported first 2005-12-27
reported last 2005-12-27
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LOR
lock order reversal: (sleepable after non-sleepable)
 1st 0xc2b77498 inp (tcpinp) @ netinet/tcp_input.c:743
 2nd 0xc0967ec4 user map (user map) @ vm/vm_map.c:2993
		
KDB: stack backtrace:
kdb_backtrace(0,ffffffff,c0977848,c0977488,c092ad8c) at kdb_backtrace+0x29
witness_checkorder(c0967ec4,9,c08b631d,bb1) at witness_checkorder+0x580
_sx_xlock(c0967ec4,c08b6314,bb1) at _sx_xlock+0x50
_vm_map_lock_read(c0967e80,c08b6314,bb1,216da80,c216c6ec) at _vm_map_lock_read+0x33
vm_map_lookup(cbfd9888,0,2,cbfd988c,cbfd987c) at vm_map_lookup+0x28
vm_fault(c0967e80,0,2,8,c216da80) at vm_fault+0x65
trap_pfault(cbfd99a4,0,44) at trap_pfault+0xee
trap(c2160008,cbfd0028,c0690028,44,c28baa63) at trap+0x3cd
calltrap() at calltrap+0x5
--- trap 0xc, eip = 0xc0829b36, esp = 0xcbfd99e4, ebp = 0xcbfd9a14 ---
		
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