witness: lock order reversal: 1st 0xffffffff828fa1f0 pf_lock (pf_lock) 2nd 0xffffffff82928a10 netlock (netlock) lock order "netlock"(rwlock) -> "pf_lock"(rwlock) first seen at: #0 rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 #1 pfioctl+0x3fbc sys/net/pf_ioctl.c:2976 #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 lock order "pf_lock"(rwlock) -> "netlock"(rwlock) first seen at: #0 rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 #1 uvn_io+0x418 sys/uvm/uvm_vnode.c:1243 #2 uvn_get+0x1df sys/uvm/uvm_vnode.c:1076 #3 uvm_fault_lower+0x36c sys/uvm/uvm_fault.c:1275 #4 uvm_fault+0x248 #5 kpageflttrap+0x209 #6 kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 #7 alltraps_kern_meltdown+0x7b #8 copyout+0x53 #9 pfioctl+0x4519 sys/net/pf_ioctl.c:2944 #10 VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 #11 vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 #12 sys_ioctl+0x4a2 #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 Stopped at db_enter+0x18: addq $0x8,%rsp ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 witness_checkorder(ffffffff82928a10,9,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffffffff82928a10,9,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1105 rw_enter_write(ffffffff82928a00) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 uvn_io(fffffd805f7f9210,ffff8000260d1e68,1,202,0) at uvn_io+0x418 sys/uvm/uvm_vnode.c:1243 uvn_get(fffffd805f7f9210,1000,ffff8000260d1f28,ffff8000260d1ef8,0,0,7caa82def8e51b12,1) at uvn_get+0x1df sys/uvm/uvm_vnode.c:1076 uvm_fault_lower(ffff8000260d2090,ffff8000260d20c8,ffff8000260d2010,0) at uvm_fault_lower+0x36c sys/uvm/uvm_fault.c:1275 uvm_fault(fffffd80682935f0,20001000,0,2) at uvm_fault+0x248 kpageflttrap(ffff8000260d2220,20001000) at kpageflttrap+0x209 kerntrap(ffff8000260d2220) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x53 pfioctl(4900,c0284457,ffff8000260d2690,1,ffff80002e3f02a8) at pfioctl+0x4519 sys/net/pf_ioctl.c:2944 VOP_IOCTL(fffffd806f77ed48,c0284457,ffff8000260d2690,1,fffffd807f7d8540,ffff80002e3f02a8) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8067f14578,c0284457,ffff8000260d2690,ffff80002e3f02a8) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002e3f02a8,ffff8000260d27a8,ffff8000260d2800) at sys_ioctl+0x4a2 syscall(ffff8000260d2870) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000260d2870) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x975889c6ac0, count: -17 ddb{0}> show registers rdi 0x3 rsi 0xffffffff8297a990 __sancov_gen_cov_switch_values.134 rbp 0xffff8000260d1c30 rbx 0x3 rdx 0 rcx 0 rax 0xffff80002e3f02a8 r8 0xffff8000260d1ba0 r9 0x8080808080808080 r10 0xe54afc93345326e2 r11 0x820521db59f46ccb r12 0xffffffff82b37f80 w_lodata+0x52a10 r13 0 r14 0xffffffff82b24340 w_lodata+0x3edd0 r15 0xfffffd8002f68780 rip 0xffffffff81c1f228 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000260d1c20 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.2) pid=421806 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=84, nice=20 forw=0xffffffffffffffff, list=0xffff80002e3f0a88,0xffff80002e3f1518 process=0xffff80002e3ad0c0 user=0xffff8000260cd000, vmspace=0xfffffd80682935f0 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 47408 342081 87020 0 2 0 syz-executor.2 *47408 421806 87020 0 7 0x4000000 syz-executor.2 47408 345593 87020 0 3 0x4000080 fsleep syz-executor.2 52962 108373 96670 0 3 0x80 nanoslp syz-executor.3 52962 98221 96670 0 3 0x4000080 netcon2 syz-executor.3 91656 238195 31455 0 3 0x80 nanoslp syz-executor.6 91656 378119 31455 0 7 0x4000000 syz-executor.6 91656 189425 31455 0 3 0x4000080 fsleep syz-executor.6 91656 333747 31455 0 3 0x4000080 fsleep syz-executor.6 38093 398328 74087 0 2 0x82 syz-executor.4 12855 341436 74087 0 2 0x482 syz-executor.7 31455 113539 74087 0 3 0x82 nanoslp syz-executor.6 44931 484316 74087 0 3 0x82 piperd syz-executor.1 17742 403990 74087 0 3 0x82 nanoslp syz-executor.5 96670 260559 74087 0 3 0x82 nanoslp syz-executor.3 60073 391188 1 0 3 0x100083 ttyin getty 6743 171743 0 0 3 0x14200 acct acct 87020 410443 74087 0 2 0x482 syz-executor.2 89040 244319 74087 0 2 0x482 syz-executor.0 54279 230849 0 0 3 0x14280 nfsidl nfsio 19981 199783 0 0 3 0x14280 nfsidl nfsio 30622 64952 0 0 3 0x14280 nfsidl nfsio 41657 507753 0 0 3 0x14280 nfsidl nfsio 91114 485841 0 0 3 0x14280 nfsidl nfsio 85697 393048 0 0 3 0x14280 nfsidl nfsio 78173 455524 0 0 3 0x14280 nfsidl nfsio 65481 429013 0 0 3 0x14280 nfsidl nfsio 18909 147903 0 0 3 0x14280 nfsidl nfsio 12371 495543 0 0 3 0x14280 nfsidl nfsio 66029 474049 0 0 3 0x14280 nfsidl nfsio 86015 503735 0 0 3 0x14280 nfsidl nfsio 40584 149064 0 0 3 0x14280 nfsidl nfsio 82812 191225 0 0 3 0x14280 nfsidl nfsio 26241 306956 0 0 3 0x14280 nfsidl nfsio 26623 308104 0 0 3 0x14280 nfsidl nfsio 20979 333778 0 0 3 0x14280 nfsidl nfsio 91820 223474 0 0 3 0x14280 nfsidl nfsio 73127 397765 0 0 3 0x14280 nfsidl nfsio 97724 435393 0 0 3 0x14280 nfsidl nfsio 81991 316719 0 0 3 0x14200 bored sosplice 74087 448514 93179 0 3 0x82 thrsleep syz-fuzzer 74087 29403 93179 0 3 0x4000082 thrsleep syz-fuzzer 74087 72852 93179 0 3 0x4000082 thrsleep syz-fuzzer 74087 329332 93179 0 3 0x4000082 thrsleep syz-fuzzer 74087 240629 93179 0 3 0x4000082 thrsleep syz-fuzzer 74087 323637 93179 0 3 0x4000082 thrsleep syz-fuzzer 74087 169173 93179 0 3 0x4000082 thrsleep syz-fuzzer 74087 209277 93179 0 3 0x4000082 thrsleep syz-fuzzer 74087 47146 93179 0 2 0x4000082 syz-fuzzer 93179 184268 4189 0 3 0x10008a sigsusp ksh 4189 100839 39266 0 2 0x9a sshd 39266 143480 1 0 3 0x88 kqread sshd 9289 304288 22045 74 3 0x1100092 bpf pflogd 22045 117358 1 0 3 0x80 netio pflogd 79180 316405 81848 73 3 0x1100090 kqread syslogd 81848 519775 1 0 3 0x100082 netio syslogd 5297 151920 1 0 3 0x100080 kqread resolvd 84443 281788 42606 77 3 0x100092 kqread dhcpleased 20212 366476 42606 77 3 0x100092 kqread dhcpleased 42606 356079 1 0 3 0x80 kqread dhcpleased 68919 361286 0 0 2 0x40014200 smr 20938 509812 0 0 2 0x14200 zerothread 40866 340951 0 0 3 0x14200 aiodoned aiodoned 63855 372313 0 0 3 0x14200 syncer update 60128 234013 0 0 3 0x14200 cleaner cleaner 39021 173744 0 0 3 0x14200 reaper reaper 7677 321620 0 0 3 0x14200 pgdaemon pagedaemon 63692 267570 0 0 3 0x14200 bored viomb 80147 101374 0 0 3 0x40014200 acpi0 acpi0 97809 121623 0 0 3 0x40014200 idle1 38301 321987 0 0 3 0x14200 bored softnet 36405 475580 0 0 3 0x14200 bored systqmp 3488 123658 0 0 3 0x14200 bored systq 71837 498380 0 0 3 0x40014200 bored softclock 6362 439323 0 0 3 0x40014200 idle0 1 251467 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 1: exclusive mutex &kq->kq_lock r = 0 (0xfffffd806f03ce68) #0 witness_lock+0x44d Process 47408 (syz-executor.2) thread 0xffff80002e3f02a8 (421806) exclusive rwlock pf_lock r = 0 (0xffffffff828fa1f0) #0 witness_lock+0x44d #1 pfioctl+0x4507 sys/net/pf_ioctl.c:2943 #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 shared rwlock pfioctl_rw r = 0 (0xffffffff828fa250) #0 witness_lock+0x44d #1 pfioctl+0x946 sys/net/pf_ioctl.c:1149 #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 (0xffffffff829cc660) #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10491 6723K 7360K 78643K 88458 0 pcb 13 20K 25K 78643K 2380 0 rtable 212 11K 12K 78643K 3336 0 ifaddr 92 21K 24K 78643K 1166 0 sysctl 3 1K 1K 78643K 3 0 counters 58 35K 36K 78643K 446 0 ioctlops 0 0K 8K 78643K 4102 0 iov 0 0K 32K 78643K 2556 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1546 97K 97K 78643K 22034 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 221 0 VM map 2 1K 1K 78643K 2 0 sem 25 10K 20K 78643K 3073 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 13 45K 85K 78643K 22879 0 sigio 0 0K 0K 78643K 219 0 proc 72 87K 124K 78643K 3461 0 subproc 104 6K 7K 78643K 1135 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1234 0 in_multi 81 5K 7K 78643K 1224 0 ether_multi 1 0K 0K 78643K 96 0 mrt 1 0K 0K 78643K 57 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 235 1049K 1049K 78643K 235 0 exec 0 0K 2K 78643K 3932 0 pfkey data 0 0K 0K 78643K 14 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 557 852K 860K 78643K 297912 0 UVM aobj 131 8K 8K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 510 0 NDP 14 0K 1K 78643K 390 0 temp 140 4713K 4969K 78643K 420189 0 kqueue 13 20K 28K 78643K 1004 0 SYN cache 2 1K 16K 78643K 4 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 120 796 0 793 8 7 1 3 0 8 0 rtentry 112 1167 0 1076 4 0 4 4 0 8 0 unpcb 136 18055 0 18040 177 176 1 10 0 8 0 syncache 296 54 0 54 20 20 0 1 0 8 0 tcpqe 32 6 63 6 3 3 0 1 0 8 0 tcpcb 736 5347 0 5267 183 175 8 14 0 8 0 arp 120 207 0 188 1 0 1 1 0 8 0 inpcb 312 13586 0 13508 207 200 7 11 0 8 0 rttmr 72 14 0 14 6 6 0 1 0 8 0 ip6q 72 2 0 2 1 1 0 1 0 8 0 ip6af 40 6 0 6 1 1 0 1 0 8 0 nd6 48 291 0 271 1 0 1 1 0 8 0 pkpcb 40 58 0 58 11 11 0 1 0 8 0 kcovpl 48 87 0 79 1 0 1 1 0 8 0 ppxss 1248 64 0 64 15 15 0 1 0 8 0 pfstscr 40 8 0 8 1 1 0 1 0 8 0 pffrag 232 67 0 66 6 5 1 1 0 482 0 pffrnode 88 67 0 66 6 5 1 1 0 8 0 pffrent 40 467 0 466 7 6 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 1 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 727 0 703 1 0 1 1 0 8 0 pfstkey 112 735 0 711 3 1 2 2 0 8 0 pfstate 320 731 0 707 16 13 3 8 0 8 1 pfrule 1360 49 0 41 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 4845 0 4456 67 39 28 31 0 8 0 art_table 32 4846 0 4456 4 0 4 4 0 8 0 art_node 16 1165 0 1084 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 5 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 3063 0 3040 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 30178 0 28652 96 0 96 96 0 8 0 ffsino 272 30178 0 28652 102 0 102 102 0 8 0 nchpl 144 59305 0 57678 63 0 63 63 0 8 0 uvmvnodes 80 7395 0 0 151 0 151 151 0 8 0 vnodes 224 7395 0 0 435 0 435 435 0 8 0 namei 1024 200538 0 200538 7 6 1 2 0 8 1 percpumem 16 235 0 194 1 0 1 1 0 8 0 vcpupl 2048 53 0 1 7 0 7 7 0 8 0 vmpool 560 71 0 19 4 0 4 4 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 174175 0 174175 32 31 1 8 0 8 1 plimitpl 152 1495 0 1480 1 0 1 1 0 8 0 sigapl 424 23076 0 23011 10 2 8 8 0 8 0 futexpl 64 188435 0 188432 3 2 1 1 0 8 0 knotepl 120 1144 0 0 11 0 11 11 0 8 0 kqueuepl 216 4024 0 4014 95 94 1 8 0 8 0 pipepl 336 3449 0 3421 110 107 3 13 0 8 0 fdescpl 496 23009 0 22983 6 2 4 5 0 8 0 filepl 152 132546 0 132235 230 217 13 26 0 8 0 lockfpl 104 5497 0 5494 15 14 1 4 0 8 0 lockfspl 48 1510 0 1507 1 0 1 1 0 8 0 sessionpl 144 104 0 87 1 0 1 1 0 8 0 pgrppl 48 1016 0 999 1 0 1 1 0 8 0 ucredpl 96 10836 0 10823 1 0 1 1 0 8 0 zombiepl 144 23014 0 23011 1 0 1 1 0 8 0 processpl 1064 23076 0 23011 6 1 5 5 0 8 0 procpl 672 71368 0 71289 35 26 9 10 0 8 1 srpgc 96 81 0 81 23 23 0 1 0 8 0 sosppl 168 106 0 106 23 23 0 1 0 8 0 sockpl 480 32587 0 32488 825 812 13 42 0 8 0 mcl64k 65536 38 0 0 4 1 3 3 0 8 0 mcl16k 16384 33 0 0 5 2 3 3 0 8 0 mcl12k 12288 41 0 0 2 0 2 2 0 8 0 mcl9k 9216 36 0 0 2 0 2 2 0 8 0 mcl8k 8192 50 0 0 4 0 4 4 0 8 0 mcl4k 4096 41 0 0 5 2 3 3 0 8 0 mcl2k2 2112 14 0 0 1 0 1 1 0 8 0 mcl2k 2048 462 0 0 30 3 27 27 0 8 0 mtagpl 96 1805 0 0 32 0 32 32 0 8 0 mbufpl 256 2339 0 0 111 0 111 111 0 8 0 bufpl 288 38174 0 30769 530 0 530 530 0 8 0 anonpl 24 6627527 0 6606402 359 220 139 160 0 186 0 amapchunkpl 152 726601 0 725795 143 103 40 48 0 158 2 amappl16 200 56014 0 55132 217 170 47 56 0 8 0 amappl15 192 5520 0 5510 1 0 1 1 0 8 0 amappl14 184 1645 0 1635 1 0 1 1 0 8 0 amappl13 176 4362 0 4356 1 0 1 1 0 8 0 amappl12 168 3763 0 3749 1 0 1 1 0 8 0 amappl11 160 4082 0 4068 1 0 1 1 0 8 0 amappl10 152 1534 0 1523 1 0 1 1 0 8 0 amappl9 144 2386 0 2383 1 0 1 1 0 8 0 amappl8 136 3342 0 3154 7 0 7 7 0 8 0 amappl7 128 1113 0 1103 1 0 1 1 0 8 0 amappl6 120 2382 0 2352 3 1 2 2 0 8 0 amappl5 112 18245 0 18228 1 0 1 1 0 8 0 amappl4 104 8276 0 8237 4 2 2 2 0 8 0 amappl3 96 7852 0 7830 1 0 1 1 0 8 0 amappl2 88 7993 0 7932 3 1 2 3 0 8 0 amappl1 80 425718 0 425167 20 6 14 19 0 8 0 amappl 88 295762 0 295468 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 23080 0 23002 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 23080 0 23002 1 0 1 1 0 8 0 vmmpekpl 168 183541 0 183468 4 0 4 4 0 8 0 vmmpepl 168 2120583 0 2117705 493 343 150 164 0 357 6 vmsppl 368 23079 0 23002 9 1 8 8 0 8 0 rwobjpl 56 520090 0 510502 157 21 136 136 0 8 0 pdppl 4096 46167 0 46056 994 873 121 121 0 8 10 pvpl 32 11123785 0 11098295 668 449 219 261 0 265 3 pmappl 248 23079 0 23002 7 1 6 6 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 2480 0 1412 31 0 31 31 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 witness_checkorder(ffffffff82928a10,9,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffffffff82928a10,9,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1105 rw_enter_write(ffffffff82928a00) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 uvn_io(fffffd805f7f9210,ffff8000260d1e68,1,202,0) at uvn_io+0x418 sys/uvm/uvm_vnode.c:1243 uvn_get(fffffd805f7f9210,1000,ffff8000260d1f28,ffff8000260d1ef8,0,0,7caa82def8e51b12,1) at uvn_get+0x1df sys/uvm/uvm_vnode.c:1076 uvm_fault_lower(ffff8000260d2090,ffff8000260d20c8,ffff8000260d2010,0) at uvm_fault_lower+0x36c sys/uvm/uvm_fault.c:1275 uvm_fault(fffffd80682935f0,20001000,0,2) at uvm_fault+0x248 kpageflttrap(ffff8000260d2220,20001000) at kpageflttrap+0x209 kerntrap(ffff8000260d2220) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x53 pfioctl(4900,c0284457,ffff8000260d2690,1,ffff80002e3f02a8) at pfioctl+0x4519 sys/net/pf_ioctl.c:2944 VOP_IOCTL(fffffd806f77ed48,c0284457,ffff8000260d2690,1,fffffd807f7d8540,ffff80002e3f02a8) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8067f14578,c0284457,ffff8000260d2690,ffff80002e3f02a8) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002e3f02a8,ffff8000260d27a8,ffff8000260d2800) at sys_ioctl+0x4a2 syscall(ffff8000260d2870) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000260d2870) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x975889c6ac0, count: -17 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 kd_curproc sys/dev/kcov.c:577 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 sys/dev/kcov.c:148 stacktrace_save_at(fffffd8003582780,0) at stacktrace_save_at+0xb5 sys/arch/amd64/amd64/db_trace.c:274 witness_lock(fffffd806f03ce68,8) at witness_lock+0x44d mtx_enter_try(fffffd806f03ce58) at mtx_enter_try+0x100 mtx_enter(fffffd806f03ce58) at mtx_enter+0x4b sys/kern/kern_lock.c:266 kqueue_register(fffffd806f03ce58,ffff8000250a26f0,0,ffff80002119f260) at kqueue_register+0x1e6 sys/kern/kern_event.c:1091 sys_kevent(ffff80002119f260,ffff8000250a2818,ffff8000250a2870) at sys_kevent+0x20a sys/kern/kern_event.c:952 syscall(ffff8000250a28e0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000250a28e0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5a737d26170, count: -12