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FreeBSD lock order reversal (LOR) #34

ID 34
state unknown
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LOR
lock order reversal
 1st 0xc1701ad8 bpf interface lock (bpf interface lock) @ sys/net/bpf.c:1273
 2nd 0xc191ab64 bpf0 (bpf cdev lock) @ sys/net/bpf.c:1277
		
KDB: stack backtrace:
kdb_backtrace(0,ffffffff,c08bddc8,c08bd558,c084c8bc) at kdb_backtrace+0x29
witness_checkorder(c191ab64,9,c07f9506,4fd) at witness_checkorder+0x544
_mtx_lock_flags(c191ab64,0,c07f9506,4fd,c16d0200) at _mtx_lock_flags+0x5b
bpf_mtap2(c1701ac0,c1713020,10,c16d0200) at bpf_mtap2+0x8c
wi_rx_intr(c1711000) at wi_rx_intr+0x432
wi_intr(c1711000) at wi_intr+0x143
pccard_intr(c1705e00,c1701c00,cbd0cd1c,c05ed790,c15f4440) at pccard_intr+0x60
cbb_func_intr(c15f4440) at cbb_func_intr+0x45
ithread_loop(c150c400,cbd0cd48,c150c400,c05ed66c,0) at ithread_loop+0x124
fork_exit(c05ed66c,c150c400,cbd0cd48) at fork_exit+0xa4
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xcbd0cd7c, ebp = 0 ---
		
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