kernel: protection fault trap, code=0 Stopped at pf_anchor_global_RB_REMOVE+0x58: movq 0(%r12),%rbx ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace pf_anchor_global_RB_REMOVE(ffffffff82ac8620,ffff800000e5c000) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000e5c490) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfioctl(4900,cd60441a,ffff800000b9c000,3,ffff80002e3cf500) at pfioctl+0x925e sys/net/pf_ioctl.c:1722 VOP_IOCTL(fffffd806f78cd48,cd60441a,ffff800000b9c000,3,fffffd807f7d8780,ffff80002e3cf500) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806c58c998,cd60441a,ffff800000b9c000,ffff80002e3cf500) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002e3cf500,ffff80002e3f1bb8,ffff80002e3f1c10) at sys_ioctl+0x4a2 syscall(ffff80002e3f1c80) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e3f1c80) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfbbcd2c9f60, count: -8 ddb{0}> show registers rdi 0xffffffff82ac8620 pf_anchors rsi 0xffff800000e5c000 rbp 0xffff80002e3f1710 rbx 0xffffffff82ac8620 pf_anchors rdx 0 rcx 0xfffffd80035841e0 rax 0xffff80002e3cf500 r8 0x101010101010101 r9 0x8080808080808080 r10 0x50d8f2e0224f8220 r11 0xbf165076e37b2df7 r12 0x1aaabba3e94f759a r13 0xffffffff82ac8628 pf_main_anchor r14 0xffff800000e5c000 r15 0xdead007fdeadbeef rip 0xffffffff81804188 pf_anchor_global_RB_REMOVE+0x58 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff80002e3f16c0 ss 0x10 pf_anchor_global_RB_REMOVE+0x58: movq 0(%r12),%rbx ddb{0}> show proc PROC (syz-executor.1) pid=13983 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=84, nice=20 forw=0xffffffffffffffff, list=0xffff80002e3cf260,0xffff8000ffff5cf0 process=0xffff80002af06580 user=0xffff80002e3ec000, vmspace=0xfffffd8063554d08 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 48598 494403 23331 0 2 0 syz-executor.1 *48598 13983 23331 0 7 0x4000000 syz-executor.1 48598 64944 23331 0 3 0x4000080 fsleep syz-executor.1 61397 329308 21939 0 2 0 syz-executor.0 61397 295992 21939 0 3 0x4000080 fsleep syz-executor.0 17776 206838 88956 0 2 0 syz-executor.7 17776 234609 88956 0 3 0x4000080 fsleep syz-executor.7 54408 438927 1446 60928 2 0x10 syz-executor.4 54408 477596 1446 60928 3 0x4000090 fsleep syz-executor.4 4395 521944 29935 0 2 0 syz-executor.5 4395 165808 29935 0 3 0x4000080 fsleep syz-executor.5 5295 218693 36335 0 2 0 syz-executor.6 5295 32882 36335 0 3 0x4000080 fsleep syz-executor.6 1446 389375 19555 0 3 0x82 nanoslp syz-executor.4 38186 84996 1 0 3 0x100083 ttyin getty 29935 199677 19555 0 3 0x82 nanoslp syz-executor.5 88956 172356 19555 0 3 0x82 nanoslp syz-executor.7 83866 25696 19555 0 2 0x2 syz-executor.2 23331 36977 19555 0 3 0x82 nanoslp syz-executor.1 64641 320081 19555 0 2 0x2 syz-executor.3 36335 7026 19555 0 3 0x82 nanoslp syz-executor.6 36883 287706 0 0 3 0x14200 acct acct 35110 367389 0 0 3 0x14280 nfsidl nfsio 67773 16508 0 0 3 0x14280 nfsidl nfsio 44763 342712 0 0 3 0x14280 nfsidl nfsio 4766 229044 0 0 3 0x14280 nfsidl nfsio 43223 458765 0 0 3 0x14280 nfsidl nfsio 34380 101174 0 0 3 0x14280 nfsidl nfsio 90187 424715 0 0 3 0x14280 nfsidl nfsio 50634 246010 0 0 3 0x14280 nfsidl nfsio 84778 463814 0 0 3 0x14280 nfsidl nfsio 71140 513962 0 0 3 0x14280 nfsidl nfsio 96827 301668 0 0 3 0x14280 nfsidl nfsio 86050 154336 0 0 3 0x14280 nfsidl nfsio 62065 326856 0 0 3 0x14280 nfsidl nfsio 92423 334178 0 0 3 0x14280 nfsidl nfsio 99145 49393 0 0 3 0x14280 nfsidl nfsio 3800 236112 0 0 3 0x14280 nfsidl nfsio 48877 402233 0 0 3 0x14280 nfsidl nfsio 5945 219243 0 0 3 0x14280 nfsidl nfsio 63361 145565 0 0 3 0x14280 nfsidl nfsio 94041 277969 0 0 3 0x14280 nfsidl nfsio 4245 91669 0 0 3 0x14200 bored sosplice 21939 65460 19555 0 3 0x82 nanoslp syz-executor.0 19555 18020 84337 0 3 0x82 thrsleep syz-fuzzer 19555 501401 84337 0 3 0x4000082 nanoslp syz-fuzzer 19555 177420 84337 0 3 0x4000082 thrsleep syz-fuzzer 19555 82538 84337 0 3 0x4000082 thrsleep syz-fuzzer 19555 350456 84337 0 3 0x4000082 thrsleep syz-fuzzer 19555 28260 84337 0 3 0x4000082 kqread syz-fuzzer 19555 58578 84337 0 3 0x4000082 nanoslp syz-fuzzer 19555 451394 84337 0 3 0x4000082 thrsleep syz-fuzzer 19555 460585 84337 0 3 0x4000082 thrsleep syz-fuzzer 84337 375289 50995 0 3 0x10008a sigsusp ksh 50995 387109 44894 0 3 0x9a kqread sshd 44894 471242 1 0 3 0x88 kqread sshd 13642 255582 79156 74 3 0x1100092 bpf pflogd 79156 120593 1 0 3 0x80 netio pflogd 12588 332273 30923 73 3 0x1100090 kqread syslogd 30923 256047 1 0 3 0x100082 netio syslogd 8841 387494 1 0 3 0x100080 kqread resolvd 14754 114388 28957 77 3 0x100092 kqread dhcpleased 91145 403534 28957 77 3 0x100092 kqread dhcpleased 28957 364719 1 0 3 0x80 kqread dhcpleased 31642 192580 0 0 3 0x14200 bored smr 19088 36122 0 0 2 0x14200 zerothread 50116 87708 0 0 3 0x14200 aiodoned aiodoned 30066 258114 0 0 3 0x14200 syncer update 9191 310117 0 0 3 0x14200 cleaner cleaner 80227 17411 0 0 3 0x14200 reaper reaper 12575 68041 0 0 3 0x14200 pgdaemon pagedaemon 10400 208769 0 0 3 0x14200 bored viomb 75377 102735 0 0 3 0x40014200 acpi0 acpi0 7109 259264 0 0 7 0x40014200 idle1 92858 427528 0 0 3 0x14200 bored softnet 82695 85356 0 0 3 0x14200 bored systqmp 69746 378323 0 0 3 0x14200 bored systq 84929 152398 0 0 3 0x40014200 bored softclock 72989 201947 0 0 3 0x40014200 idle0 1 293755 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 48598 (syz-executor.1) thread 0xffff80002e3cf500 (13983) exclusive rwlock pf_lock r = 0 (0xffffffff82944be0) #0 witness_lock+0x44d #1 pfioctl+0x5be8 sys/net/pf_ioctl.c:1610 #2 VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 #3 vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 #4 sys_ioctl+0x4a2 #5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #6 Xsyscall+0x128 exclusive rwlock netlock r = 0 (0xffffffff829c2d60) #0 witness_lock+0x44d #1 pfioctl+0x3708 sys/net/pf_ioctl.c:1610 #2 VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 #3 vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 #4 sys_ioctl+0x4a2 #5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #6 Xsyscall+0x128 exclusive rwlock pfioctl_rw r = 0 (0xffffffff82944c40) #0 witness_lock+0x44d #1 pfioctl+0x15e sys/net/pf_ioctl.c:1150 #2 VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 #3 vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 #4 sys_ioctl+0x4a2 #5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82b43e88) #0 witness_lock+0x44d #1 vn_ioctl+0x41 sys/kern/vfs_vnops.c:514 #2 sys_ioctl+0x4a2 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 Process 83866 (syz-executor.2) thread 0xffff80002e3cfa40 (25696) exclusive rrwlock inode r = 0 (0xfffffd806f6c6810) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vget+0x1d3 sys/kern/vfs_subr.c:678 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1318 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 #11 namei+0x36a sys/kern/vfs_lookup.c:245 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1850 #13 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8064660f88) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1850 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 Process 64641 (syz-executor.3) thread 0xffff80002af487f0 (320081) exclusive rrwlock inode r = 0 (0xfffffd806d411708) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vn_closefile+0xc6 vn_close sys/kern/vfs_vnops.c:298 [inline] #5 vn_closefile+0xc6 sys/kern/vfs_vnops.c:624 #6 fdrop+0xc7 sys/kern/kern_descrip.c:1279 #7 closef+0x11c sys/kern/kern_descrip.c:1263 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10220 6562K 7692K 78643K 26768 0 pcb 13 16K 18K 78643K 3989 0 rtable 221 20K 24K 78643K 2549 0 ifaddr 94 20K 23K 78643K 1217 0 sysctl 2 0K 0K 78643K 4 0 counters 54 35K 35K 78643K 252 0 ioctlops 1 4K 8K 78643K 4199 0 iov 0 0K 28K 78643K 1119 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1425 89K 89K 78643K 5807 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 91 0 VM map 2 1K 1K 78643K 2 0 sem 20 10K 20K 78643K 1661 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 16 57K 89K 78643K 12896 0 sigio 0 0K 0K 78643K 138 0 proc 71 87K 136K 78643K 1852 0 subproc 104 6K 6K 78643K 499 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 869 0 in_multi 78 5K 7K 78643K 1549 0 ether_multi 1 0K 0K 78643K 464 0 mrt 1 0K 0K 78643K 46 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 229 1023K 1023K 78643K 229 0 exec 0 0K 2K 78643K 2294 0 pfkey data 0 0K 0K 78643K 8 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 524 815K 831K 78643K 164807 0 UVM aobj 131 6K 6K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 3857 0 NDP 13 0K 2K 78643K 213 0 temp 142 4721K 4975K 78643K 137019 0 kqueue 12 18K 24K 78643K 595 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 726 0 723 10 9 1 3 0 8 0 rtentry 112 572 0 487 4 0 4 4 0 8 0 unpcb 136 7364 0 7349 67 61 6 6 0 8 5 syncache 296 45 0 45 13 13 0 1 0 8 0 tcpqe 32 13 0 13 7 7 0 1 0 8 0 tcpcb 736 7911 0 7905 152 145 7 15 0 8 6 arp 120 88 0 70 1 0 1 1 0 8 0 inpcb 312 30354 0 30339 176 166 10 16 0 8 8 rttmr 72 15 0 15 4 3 1 1 0 8 1 nd6 48 145 0 127 1 0 1 1 0 8 0 pkpcb 40 68 0 68 10 10 0 1 0 8 0 kcovpl 48 38 0 30 1 0 1 1 0 8 0 ppxss 1248 28 0 28 9 8 1 1 0 8 1 pfstscr 40 57 0 55 1 0 1 1 0 8 0 pffrag 232 21 0 21 4 4 0 1 0 482 0 pffrnode 88 21 0 21 4 4 0 1 0 8 0 pffrent 40 56 0 56 4 4 0 1 0 8 0 pfosfp 40 1435 0 1010 5 0 5 5 0 8 0 pfosfpen 112 1435 0 714 21 0 21 21 0 8 0 pfrktable 1344 206 0 196 6 5 1 2 0 8 0 pftag 88 20 0 12 1 0 1 1 0 8 0 pfqueue 264 12 0 12 4 4 0 1 0 8 0 pfstitem 24 40 0 35 1 0 1 1 0 8 0 pfstkey 112 144 0 140 1 0 1 1 0 8 0 pfstate 320 90 0 86 3 1 2 3 0 8 0 pfrule 1360 607 0 579 8 5 3 4 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2563 0 2247 43 20 23 30 0 8 0 art_table 32 2564 0 2247 4 0 4 4 0 8 0 art_node 16 568 0 494 1 0 1 1 0 8 0 sysvmsgpl 40 43 0 7 1 0 1 1 0 8 0 semupl 112 5 0 5 2 2 0 1 0 8 0 semapl 112 1653 0 1635 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 17103 0 15621 93 0 93 93 0 8 0 ffsino 272 17103 0 15621 100 0 100 100 0 8 0 nchpl 144 32909 0 31292 63 0 63 63 0 8 0 uvmvnodes 80 5929 0 0 121 0 121 121 0 8 0 vnodes 224 5929 0 0 349 0 349 349 0 8 0 namei 1024 107703 0 107703 7 6 1 2 0 8 1 percpumem 16 138 0 99 1 0 1 1 0 8 0 vcpupl 2048 147 0 0 19 0 19 19 0 8 0 vmpool 560 231 0 84 11 0 11 11 0 8 0 pfiaddrpl 120 95 0 72 3 2 1 1 0 8 0 scsiplug 72 10 0 10 1 1 0 1 0 8 0 scxspl 216 101013 0 101013 13 12 1 8 0 8 1 plimitpl 152 967 0 952 1 0 1 1 0 8 0 sigapl 424 13180 0 13115 10 2 8 8 0 8 0 futexpl 64 132278 0 132272 3 2 1 1 0 8 0 knotepl 120 754 0 0 12 1 11 11 0 8 0 kqueuepl 216 3047 0 3038 56 53 3 5 0 8 2 pipepl 336 2209 0 2180 70 67 3 14 0 8 0 fdescpl 496 13130 0 13101 7 3 4 5 0 8 0 filepl 152 91264 0 91009 129 114 15 20 0 8 4 lockfpl 104 3690 0 3688 12 11 1 2 0 8 0 lockfspl 48 794 0 792 1 0 1 1 0 8 0 sessionpl 144 57 0 40 1 0 1 1 0 8 0 pgrppl 48 145 0 128 1 0 1 1 0 8 0 ucredpl 96 7873 0 7859 1 0 1 1 0 8 0 zombiepl 144 13115 0 13115 1 0 1 1 0 8 1 processpl 1064 13180 0 13115 5 0 5 5 0 8 0 procpl 672 37554 0 37474 20 12 8 10 0 8 0 srpgc 96 28 0 28 9 9 0 1 0 8 0 sosppl 168 118 0 118 19 19 0 1 0 8 0 sockpl 480 38531 0 38498 553 541 12 33 0 8 7 mcl64k 65536 32 0 0 3 0 3 3 0 8 0 mcl16k 16384 36 0 0 5 3 2 3 0 8 0 mcl12k 12288 18 0 0 2 1 1 2 0 8 0 mcl9k 9216 30 0 0 2 0 2 2 0 8 0 mcl8k 8192 41 0 0 4 1 3 3 0 8 0 mcl4k 4096 25 0 0 3 0 3 3 0 8 0 mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 mcl2k 2048 262 0 0 19 3 16 19 0 8 0 mtagpl 96 550 0 0 7 1 6 7 0 8 0 mbufpl 256 4541 0 0 279 0 279 279 0 8 0 bufpl 288 21533 0 15197 453 0 453 453 0 8 0 anonpl 24 3676762 0 3657221 237 106 131 147 0 186 0 amapchunkpl 152 401976 0 401097 124 76 48 49 0 158 9 amappl16 200 34110 0 33455 132 95 37 47 0 8 0 amappl15 192 2695 0 2690 1 0 1 1 0 8 0 amappl14 184 1283 0 1274 1 0 1 1 0 8 0 amappl13 176 1206 0 1205 1 0 1 1 0 8 0 amappl12 168 2848 0 2841 1 0 1 1 0 8 0 amappl11 160 1277 0 1258 1 0 1 1 0 8 0 amappl10 152 1979 0 1970 1 0 1 1 0 8 0 amappl9 144 1674 0 1669 1 0 1 1 0 8 0 amappl8 136 2464 0 2349 5 0 5 5 0 8 0 amappl7 128 1363 0 1346 1 0 1 1 0 8 0 amappl6 120 1546 0 1513 3 1 2 2 0 8 0 amappl5 112 11245 0 11226 1 0 1 1 0 8 0 amappl4 104 3414 0 3379 2 1 1 2 0 8 0 amappl3 96 4039 0 4024 1 0 1 1 0 8 0 amappl2 88 5135 0 5083 3 1 2 3 0 8 0 amappl1 80 235271 0 234674 21 7 14 19 0 8 1 amappl 88 163499 0 163176 8 0 8 8 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 13361 0 13185 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 13361 0 13185 2 0 2 2 0 8 0 vmmpekpl 168 99644 0 99562 4 0 4 4 0 8 0 vmmpepl 168 1189908 0 1186929 390 248 142 166 0 357 0 vmsppl 368 13360 0 13185 18 1 17 17 0 8 0 rwobjpl 56 287784 0 279939 126 14 112 114 0 8 0 pdppl 4096 26729 0 26517 660 444 216 216 0 8 4 pvpl 32 6171554 0 6147257 489 281 208 262 0 265 0 pmappl 248 13360 0 13185 12 0 12 12 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 2119 0 863 37 0 37 37 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pf_anchor_global_RB_REMOVE(ffffffff82ac8620,ffff800000e5c000) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000e5c490) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfioctl(4900,cd60441a,ffff800000b9c000,3,ffff80002e3cf500) at pfioctl+0x925e sys/net/pf_ioctl.c:1722 VOP_IOCTL(fffffd806f78cd48,cd60441a,ffff800000b9c000,3,fffffd807f7d8780,ffff80002e3cf500) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806c58c998,cd60441a,ffff800000b9c000,ffff80002e3cf500) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002e3cf500,ffff80002e3f1bb8,ffff80002e3f1c10) at sys_ioctl+0x4a2 syscall(ffff80002e3f1c80) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e3f1c80) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfbbcd2c9f60, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020ce8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5