During a reboot of a recent -CURRENT installation, the following LOR is reproducible reported. lock order reversal: 1st 0xffffffff827a37e0 cc_list (cc_list, rw) @ /boiler/nfs/src/sys/netinet/cc/cc.c:226 2nd 0xffffffff827a2fd8 vnet_rwlock (vnet_rwlock, rw) @ /boiler/nfs/src/sys/netinet/cc/cc.c:189 lock order cc_list -> vnet_rwlock attempted at: #0 0xffffffff811fe7fe at witness_checkorder+0x13de #1 0xffffffff811468ed at __rw_rlock_int+0xcd #2 0xffffffff8114726e at __rw_rlock+0x2e #3 0xffffffff814134fa at cc_deregister_algo+0xaa #4 0xffffffff814138c9 at cc_modevent+0x29 #5 0xffffffff81116542 at module_shutdown+0xb2 #6 0xffffffff8114d8c5 at kern_reboot+0x695 #7 0xffffffff8114d1db at sys_reboot+0x5fb #8 0xffffffff81834371 at amd64_syscall+0x281 #9 0xffffffff817f4ade at fast_syscall_common+0xf8 KERNCONF is the following: include GENERIC options RATELIMIT options TCPHPTS options KERN_TLS options ROUTE_MPATH