witness: lock order reversal: 1st 0xffffffff839aa6c8 pf_lock (pf_lock) 2nd 0xffffffff83976af0 netlock (netlock) lock order [1] pf_lock (pf_lock) -> [2] netlock (netlock) #0 rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 #1 uvn_io+0x54c sys/uvm/uvm_vnode.c:1244 #2 uvn_get+0x31d sys/uvm/uvm_vnode.c:1076 #3 uvm_fault_lower_io+0x2ce sys/uvm/uvm_fault.c:1612 #4 uvm_fault_lower+0x28d sys/uvm/uvm_fault.c:1381 #5 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #6 kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:285 #7 kerntrap+0x19d sys/arch/amd64/amd64/trap.c:532 #8 alltraps_kern_meltdown+0x7b #9 _copyin+0x5b #10 pfioctl+0x1377 sys/net/pf_ioctl.c:3284 #11 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #12 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 #13 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #14 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #14 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 #15 Xsyscall+0x128 lock order [2] netlock (netlock) -> [1] pf_lock (pf_lock) #0 rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 #1 pfi_attach_ifgroup+0x2a sys/net/pf_if.c:357 #2 if_addgroup+0x2f8 if_creategroup sys/net/if.c:3059 [inline] #2 if_addgroup+0x2f8 sys/net/if.c:3097 #3 if_attachsetup+0xcf sys/net/if.c:512 #4 if_attach+0x6d sys/net/if.c:604 #5 vio_attach+0x1853 sys/dev/pv/if_vio.c:935 #6 config_attach+0x449 sys/kern/subr_autoconf.c:421 #7 virtio_pci_attach+0x4e6 sys/dev/pci/virtio_pci.c:673 #8 config_attach+0x449 sys/kern/subr_autoconf.c:421 #9 pci_probe_device+0x8e5 sys/dev/pci/pci.c:574 #10 pci_enumerate_bus+0x368 sys/dev/pci/pci.c:877 #11 config_attach+0x449 sys/kern/subr_autoconf.c:421 #12 acpipci_attach_bus+0x381 sys/arch/amd64/pci/acpipci.c:257 #13 acpipci_attach_busses+0x93 sys/arch/amd64/pci/acpipci.c:265 #14 mainbus_attach+0x304 sys/arch/amd64/amd64/mainbus.c:222 #15 config_attach+0x449 sys/kern/subr_autoconf.c:421 #16 cpu_configure+0x47 sys/arch/amd64/amd64/autoconf.c:124 #17 main+0x4c7 sys/kern/init_main.c:345 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> show kasan No such command ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(ffffffff83976af0,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 rw_do_enter_write(ffffffff83976ad8,0) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 uvn_io(fffff4006cd40dd0,ffff80003839d7b8,1,202,0) at uvn_io+0x54c sys/uvm/uvm_vnode.c:1244 uvn_get(fffff4006cd40dd0,0,ffff80003839d888,ffff80003839d86c,0,1,3e6e06bd75e2dabe,1) at uvn_get+0x31d sys/uvm/uvm_vnode.c:1076 uvm_fault_lower_io(ffff80003839daa0,ffff80003839dad8,ffff80003839d920,ffff80003839d908) at uvm_fault_lower_io+0x2ce sys/uvm/uvm_fault.c:1612 uvm_fault_lower(ffff80003839daa0,ffff80003839dad8,ffff80003839da20) at uvm_fault_lower+0x28d sys/uvm/uvm_fault.c:1381 uvm_fault(fffff4006cefe3e8,200000001000,0,1) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 kpageflttrap(ffff80003839dc50,200000001200) at kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:285 kerntrap(ffff80003839dc50) at kerntrap+0x19d sys/arch/amd64/amd64/trap.c:532 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b _copyin() at _copyin+0x5b pfioctl(24900,c4504441,ffff800001575000,1,ffff80002a21c010) at pfioctl+0x1377 sys/net/pf_ioctl.c:3284 VOP_IOCTL(fffff4007af467b8,c4504441,ffff800001575000,1,fffff400097fd618,ffff80002a21c010) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffff4006cf0b710,c4504441,ffff800001575000,ffff80002a21c010) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80002a21c010,ffff80003839e800,ffff80003839e750) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003839e800) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003839e800) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc8ba5158d80, count: -18 ddb{1}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff80003839d570 rbx 0 rdx 0xffff8000015fb780 rcx 0xffff80002a21c010 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff80003839d450 r9 0x8080808080808080 r10 0x286a96440fe5da97 r11 0xc31fcdb152e3edae r12 0xfffff400041072c0 r13 0xfffff400048f6d68 r14 0x3 r15 0xffffffff8355ee31 substchar+0x500b rip 0xffffffff81991da5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003839d560 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=130573 pid=53864 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800045fe9778,0xffff80002a21d248 process=0xffff800045fe49d0 user=0xffff800038399000, vmspace=0xfffff4006cefe3e8 estcpu=18, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 69806 247034 77039 0 7 0 0 syz-executor 69806 365986 77039 0 3 0 0x4000080 fsleep syz-executor 69806 475067 77039 0 3 0 0x4000080 ttyin syz-executor 69806 8036 77039 0 3 0 0x4000080 ttyin syz-executor 50037 474535 71933 0 2 0 0 syz-executor 52914 216642 27511 0 2 0 0 syz-executor 52914 126800 27511 0 2 0 0x4000000 syz-executor 53864 454666 62414 0 2 0 0 syz-executor *53864 130573 62414 0 7 0 0x4000000 syz-executor 52480 498845 24662 0 2 0x2 0 syz-executor 96354 46328 74987 0 3 0x2 0 clonelk ifconfig 74987 252280 92902 0 3 0x100002 0x88 sigsusp sh 92902 205361 24662 0 3 0x2 0x80 wait syz-executor 64398 218137 5255 0 3 0 0x80 nanoslp syz-executor 64398 383491 5255 0 3 0 0x4000080 fsleep syz-executor 64398 434449 5255 0 3 0 0x4000080 kqpoll syz-executor 64398 375259 5255 0 3 0 0x4000080 fsleep syz-executor 71933 189580 24662 0 2 0x2 0 syz-executor 8970 63196 24662 0 3 0x2 0x80 nanoslp syz-executor 27511 164119 24662 0 3 0x2 0x80 nanoslp syz-executor 62414 308704 24662 0 3 0x2 0x80 nanoslp syz-executor 5255 338230 24662 0 3 0x2 0x80 nanoslp syz-executor 77039 2180 24662 0 3 0x2 0x80 nanoslp syz-executor 24662 318503 5788 0 3 0x2 0x80 kqread syz-executor 5788 118605 50231 0 3 0x100002 0x88 sigsusp ksh 50231 107766 45306 0 3 0x10 0x88 kqread sshd-session 45306 203309 25207 0 3 0x12 0x80 kqread sshd-session 76641 497890 1 0 3 0x100003 0x80 ttyin getty 25207 387845 1 0 3 0 0x88 kqread sshd 74899 154153 19339 74 3 0x1100012 0x80 bpf pflogd 19339 80306 1 0 3 0 0x80 sbwait pflogd 78325 93232 22605 73 3 0x1100010 0x80 kqread syslogd 22605 115702 1 0 3 0x100002 0x80 sbwait syslogd 62477 465735 1 0 3 0x100000 0x80 kqread resolvd 81054 50889 71137 77 3 0x100012 0x80 kqread dhcpleased 14642 117484 71137 77 3 0x100012 0x80 kqread dhcpleased 71137 51845 1 0 3 0 0x80 kqread dhcpleased 68136 221863 0 0 3 0x14000 0x200 bored smr 1339 227530 0 0 2 0x14000 0x200 zerothread 95118 368465 0 0 3 0x14000 0x200 aiodoned aiodoned 86497 206638 0 0 3 0x14000 0x200 syncer update 92127 188551 0 0 3 0x14000 0x200 cleaner cleaner 49443 178031 0 0 3 0x14000 0x200 reaper reaper 15158 66930 0 0 3 0x14000 0x200 pgdaemon pagedaemon 39463 513969 0 0 3 0x14000 0x200 bored viomb 78314 408080 0 0 3 0x14000 0x40000200 acpi0 acpi0 39897 381822 0 0 3 0x14000 0x40000200 idle1 90394 249762 0 0 3 0x14000 0x200 bored softnet1 1835 408452 0 0 2 0x14000 0x200 softnet0 20226 204998 0 0 3 0x14000 0x200 smrbar systqmp 75602 138358 0 0 3 0x14000 0x200 bored systq 55317 423944 0 0 3 0x14000 0x200 tmoslp softclockmp 95496 252427 0 0 3 0x14000 0x40000200 tmoslp softclock 23728 93512 0 0 3 0x14000 0x40000200 idle0 1 193710 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{1}> show all locks Process 53864 (syz-executor) thread 0xffff80002a21c010 (130573) exclusive rwlock pf_lock r = 0 (0xffffffff839aa6c8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 pfioctl+0x1342 sys/net/pf_ioctl.c:3284 #3 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #4 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 #5 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 #7 Xsyscall+0x128 exclusive rwlock pfioctl_rw r = 0 (0xffffffff839aa758) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 pfioctl+0x1d4 sys/net/pf_ioctl.c:2064 #3 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #4 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 #5 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 #7 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83ac6c80) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 vn_ioctl+0x4d sys/kern/vfs_vnops.c:520 #2 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 #4 Xsyscall+0x128 Process 20226 (systqmp) thread 0xffff800045ffe530 (204998) shared rwlock systqmp r = 0 (0xffffffff83979b58) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11050 12082K 12214K 166960K 12161 0 pcb 17 12K 12K 166960K 28 0 rtable 195 5K 7K 166960K 359 0 pf 33 17K 24K 166960K 61 0 ifaddr 36 6K 7K 166960K 46 0 ifgroup 52 2K 2K 166960K 60 0 sysctl 1 1K 9K 166960K 5 0 counters 68 36K 37K 166960K 72 0 ioctlops 1 2K 4K 166960K 1490 0 iov 0 0K 1K 166960K 2 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1296 82K 82K 166960K 1395 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 4 0K 0K 166960K 4 0 dirhash 15 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 164 0 proc 79 131K 164K 166960K 564 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 9 0 in_multi 77 5K 6K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 43 201K 201K 166960K 43 0 exec 0 0K 1K 166960K 396 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 231 176K 184K 166960K 3284 0 UVM aobj 3 2K 4K 166960K 4 0 pinsyscall 43 86K 102K 166960K 1354 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 2 0 NDP 23 1K 2K 166960K 29 0 temp 34 9122K 9128K 166960K 3736 0 kqueue 14 22K 22K 166960K 28 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 28 0 0 1 0 1 1 0 8 0 rtpcb 120 36 0 33 1 0 1 1 0 8 0 rtentry 176 112 0 23 6 0 6 6 0 8 0 unpcb 144 54 0 36 1 0 1 1 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 13 0 9 1 0 1 1 0 8 0 arp 136 18 0 4 1 0 1 1 0 8 0 inpcb 328 92 0 80 2 0 2 2 0 8 1 nd6 152 25 0 6 1 0 1 1 0 8 0 kcovpl 48 9 0 2 1 0 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 pfanchor 1288 4 0 0 1 0 1 1 0 8 0 pfstitem 24 28 0 0 1 0 1 1 0 8 0 pfstkey 128 28 0 0 1 0 1 1 0 8 0 pfstate 448 28 0 0 4 0 4 4 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 461 0 0 29 0 29 29 0 8 0 art_table 40 462 0 0 5 0 5 5 0 8 0 art_node 32 112 0 21 1 0 1 1 0 8 0 semapl 72 2 0 0 1 0 1 1 0 8 0 shmpl 120 1 0 1 1 0 1 1 0 8 1 dirhash 1024 19 0 0 3 0 3 3 0 8 0 dino2pl 256 1599 0 124 93 0 93 93 0 8 0 ffsino 296 1599 0 124 114 0 114 114 0 8 0 nchpl 144 1819 0 111 64 0 64 64 0 8 0 vnodes 216 1716 0 0 96 0 96 96 0 8 0 namei 1024 6443 0 6443 3 1 2 2 0 8 2 percpumem 16 52 0 2 1 0 1 1 0 8 0 kstatmem 264 29 0 4 2 0 2 2 0 8 0 scxspl 216 6340 0 6340 4 2 2 3 1 8 2 plimitpl 152 34 0 16 1 0 1 1 0 8 0 sigapl 424 486 0 438 7 0 7 7 0 8 0 knotepl 120 55 0 0 2 0 2 2 0 8 0 kqueuepl 224 26 0 16 1 0 1 1 0 8 0 pipepl 344 136 0 109 3 0 3 3 0 8 0 fdescpl 528 470 0 438 3 0 3 3 0 8 0 filepl 160 1717 0 1494 10 0 10 10 0 8 0 lockfpl 104 12 0 8 1 0 1 1 0 8 0 lockfspl 48 8 0 4 1 0 1 1 0 8 0 sessionpl 144 27 0 18 1 0 1 1 0 8 0 pgrppl 48 37 0 20 1 0 1 1 0 8 0 ucredpl 104 106 0 93 1 0 1 1 0 8 0 zombiepl 144 439 0 438 1 0 1 1 0 8 0 processpl 1240 486 0 438 5 0 5 5 0 8 0 procpl 664 527 0 471 6 0 6 6 0 8 1 sockpl 752 182 0 149 4 0 4 4 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 135 0 0 17 0 17 17 0 8 0 mcl2k 2048 23 0 0 3 0 3 3 0 8 0 mextrefs 64 20 0 0 1 0 1 1 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 182 0 0 12 0 12 12 0 8 0 bufpl 272 2310 0 105 147 0 147 147 0 8 0 anonpl 32 3529 0 0 29 0 29 29 0 247 0 amapchunkpl 152 8700 0 8235 18 0 18 18 0 158 0 amappl16 200 1115 0 1100 4 0 4 4 0 8 3 amappl15 192 5 0 5 1 0 1 1 0 8 1 amappl14 184 453 0 450 1 0 1 1 0 8 0 amappl13 176 126 0 114 1 0 1 1 0 8 0 amappl12 168 740 0 711 2 0 2 2 0 8 0 amappl11 160 5 0 4 1 0 1 1 0 8 0 amappl10 152 67 0 53 1 0 1 1 0 8 0 amappl9 144 273 0 273 1 0 1 1 0 8 1 amappl8 136 115 0 113 1 0 1 1 0 8 0 amappl7 128 170 0 156 1 0 1 1 0 8 0 amappl6 120 154 0 151 1 0 1 1 0 8 0 amappl5 112 110 0 100 1 0 1 1 0 8 0 amappl4 104 311 0 290 1 0 1 1 0 8 0 amappl3 96 1562 0 1472 3 0 3 3 0 8 0 amappl2 88 595 0 520 2 0 2 2 0 8 0 amappl1 80 10693 0 10084 15 0 15 15 0 8 0 amappl 88 2524 0 2367 4 0 4 4 0 92 0 uvmvnodes 80 102 0 0 3 0 3 3 0 8 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 3 0 1 1 0 1 1 0 8 0 uaddrrnd 24 470 0 438 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 470 0 438 1 0 1 1 0 8 0 vmmpekpl 168 5969 0 5933 3 0 3 3 0 8 0 vmmpepl 168 39375 0 37492 86 0 86 86 0 357 3 vmsppl 488 469 0 438 5 0 5 5 0 8 0 rwobjpl 80 14266 0 13241 23 0 23 23 0 8 0 pdppl 4096 948 0 876 96 12 84 84 0 8 12 pvpl 32 9114 0 0 75 1 74 74 0 265 0 pmappl 256 469 0 438 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 419 0 16 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff83934ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff83ac6480) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83ac6480) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff80002a2a8a00,ffff800000079600) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x44 sys/dev/kcov.c:159 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x76ec1207b8e0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(ffffffff83976af0,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 rw_do_enter_write(ffffffff83976ad8,0) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 uvn_io(fffff4006cd40dd0,ffff80003839d7b8,1,202,0) at uvn_io+0x54c sys/uvm/uvm_vnode.c:1244 uvn_get(fffff4006cd40dd0,0,ffff80003839d888,ffff80003839d86c,0,1,3e6e06bd75e2dabe,1) at uvn_get+0x31d sys/uvm/uvm_vnode.c:1076 uvm_fault_lower_io(ffff80003839daa0,ffff80003839dad8,ffff80003839d920,ffff80003839d908) at uvm_fault_lower_io+0x2ce sys/uvm/uvm_fault.c:1612 uvm_fault_lower(ffff80003839daa0,ffff80003839dad8,ffff80003839da20) at uvm_fault_lower+0x28d sys/uvm/uvm_fault.c:1381 uvm_fault(fffff4006cefe3e8,200000001000,0,1) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 kpageflttrap(ffff80003839dc50,200000001200) at kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:285 kerntrap(ffff80003839dc50) at kerntrap+0x19d sys/arch/amd64/amd64/trap.c:532 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b _copyin() at _copyin+0x5b pfioctl(24900,c4504441,ffff800001575000,1,ffff80002a21c010) at pfioctl+0x1377 sys/net/pf_ioctl.c:3284 VOP_IOCTL(fffff4007af467b8,c4504441,ffff800001575000,1,fffff400097fd618,ffff80002a21c010) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffff4006cf0b710,c4504441,ffff800001575000,ffff80002a21c010) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80002a21c010,ffff80003839e800,ffff80003839e750) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003839e800) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003839e800) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc8ba5158d80, count: -18