db> show locks
exclusive sleep mutex ifnet r = 0 (0xc083a680) locked @ /usr/src/sys/net/if.c:699
exclusive sleep mutex bridge r = 0 (0xc09157c0) locked @ /usr/src/sys/modules/bridge/../../net/bridge.c:594
exclusive sx sysctl lock r = 0 (0xc080f5a0) locked @ /usr/src/sys/kern/kern_sysctl.c:1315
exclusive sleep mutex Giant r = 0 (0xc080dd00) locked @ /usr/src/sys/kern/kern_sysctl.c:1255
db>