witness: lock order reversal: 1st 0xffffffff82968010 pf_lock (pf_lock) 2nd 0xffffffff829323b0 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+0x417c sys/net/pf_ioctl.c:2964 #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:1245 #2 uvn_get+0x1df sys/uvm/uvm_vnode.c:1078 #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+0x4516 sys/net/pf_ioctl.c:2932 #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:437 witness_checkorder(ffffffff829323b0,9,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffffffff829323b0,9,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1105 rw_enter_write(ffffffff829323a0) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 uvn_io(fffffd806511ff40,ffff80002aff6c18,1,202,0) at uvn_io+0x418 sys/uvm/uvm_vnode.c:1245 uvn_get(fffffd806511ff40,0,ffff80002aff6cd8,ffff80002aff6ca8,0,0,8e35cb80a4273981,1) at uvn_get+0x1df sys/uvm/uvm_vnode.c:1078 uvm_fault_lower(ffff80002aff6e40,ffff80002aff6e78,ffff80002aff6dc0,0) at uvm_fault_lower+0x36c sys/uvm/uvm_fault.c:1275 uvm_fault(fffffd805c2405f0,20001000,0,2) at uvm_fault+0x248 kpageflttrap(ffff80002aff6fd0,20001000) at kpageflttrap+0x209 kerntrap(ffff80002aff6fd0) 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,ffff80002aff7440,1,ffff80002e3e07e8) at pfioctl+0x4516 sys/net/pf_ioctl.c:2932 VOP_IOCTL(fffffd806f67a8e8,c0284457,ffff80002aff7440,1,fffffd807f7d77e0,ffff80002e3e07e8) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806c7c51e8,c0284457,ffff80002aff7440,ffff80002e3e07e8) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002e3e07e8,ffff80002aff7558,ffff80002aff75b0) at sys_ioctl+0x4a2 syscall(ffff80002aff7620) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002aff7620) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7bea683a0, count: -17 ddb{0}> show registers rdi 0x3 rsi 0x40000 acpi_pdirpa+0x2be68 rbp 0xffff80002aff69e0 rbx 0x3 rdx 0xffff800000bdff80 rcx 0 rax 0x3ffff acpi_pdirpa+0x2be67 r8 0xffff80002aff6950 r9 0x8080808080808080 r10 0xff97cd5a239e4f62 r11 0xc8d1d9a23eb6f912 r12 0xffffffff82b8e000 w_lodata+0x52cd0 r13 0 r14 0xffffffff82b78630 w_lodata+0x3d300 r15 0xfffffd8002f7a840 rip 0xffffffff818222c8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002aff69d0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.4) pid=345473 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=84, nice=20 forw=0xffffffffffffffff, list=0xffff80002e3e0548,0xffff80002e3e1278 process=0xffff80002e3c6dd8 user=0xffff80002aff2000, vmspace=0xfffffd805c2405f0 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 54766 97551 38805 0 2 0 syz-executor.7 54766 442375 38805 0 2 0x4000000 syz-executor.7 13603 80114 84486 0 2 0 syz-executor.3 13603 100573 84486 0 3 0x4000080 fsleep syz-executor.3 8511 502125 86342 0 2 0 syz-executor.2 8511 415708 86342 0 3 0x4000080 fsleep syz-executor.2 19977 441287 80502 0 2 0 syz-executor.1 19977 295687 80502 0 3 0x4000080 fsleep syz-executor.1 65822 109782 55043 0 2 0 syz-executor.6 65822 476151 55043 0 3 0x4000080 fsleep syz-executor.6 64834 421598 98873 0 2 0 syz-executor.0 64834 86971 98873 0 3 0x4000080 fsleep syz-executor.0 80489 37165 34218 0 2 0 syz-executor.4 *80489 345473 34218 0 7 0x4000000 syz-executor.4 10445 500613 47900 0 2 0 syz-executor.5 10445 341816 47900 0 3 0x4000080 fsleep syz-executor.5 98873 518721 81123 0 3 0x82 nanoslp syz-executor.0 34218 345160 81123 0 3 0x82 nanoslp syz-executor.4 47900 186943 81123 0 3 0x82 nanoslp syz-executor.5 55043 433611 81123 0 3 0x82 nanoslp syz-executor.6 86342 308234 81123 0 3 0x82 nanoslp syz-executor.2 80502 217983 81123 0 3 0x82 nanoslp syz-executor.1 84486 411625 81123 0 3 0x82 nanoslp syz-executor.3 27617 158185 0 0 3 0x14200 acct acct 38805 455013 81123 0 3 0x82 nanoslp syz-executor.7 9641 414726 0 0 3 0x14280 nfsidl nfsio 47051 36230 0 0 3 0x14280 nfsidl nfsio 55129 83892 0 0 3 0x14280 nfsidl nfsio 20056 462058 0 0 3 0x14280 nfsidl nfsio 13405 427509 0 0 3 0x14280 nfsidl nfsio 69269 396101 0 0 3 0x14280 nfsidl nfsio 29925 124420 0 0 3 0x14280 nfsidl nfsio 37963 183731 0 0 3 0x14280 nfsidl nfsio 51387 422392 0 0 3 0x14280 nfsidl nfsio 31838 394066 0 0 3 0x14280 nfsidl nfsio 75558 115729 0 0 3 0x14280 nfsidl nfsio 55753 215200 0 0 3 0x14280 nfsidl nfsio 45223 274417 0 0 3 0x14280 nfsidl nfsio 84647 395864 0 0 3 0x14280 nfsidl nfsio 33456 87147 0 0 3 0x14280 nfsidl nfsio 57636 484779 0 0 3 0x14280 nfsidl nfsio 98512 230921 0 0 3 0x14280 nfsidl nfsio 10991 398227 0 0 3 0x14280 nfsidl nfsio 2544 41606 0 0 3 0x14280 nfsidl nfsio 93065 426242 0 0 3 0x14280 nfsidl nfsio 82164 475332 0 0 3 0x14200 bored sosplice 81123 218427 93728 0 3 0x82 thrsleep syz-fuzzer 81123 521973 93728 0 3 0x4000082 thrsleep syz-fuzzer 81123 347417 93728 0 3 0x4000082 thrsleep syz-fuzzer 81123 233254 93728 0 3 0x4000082 thrsleep syz-fuzzer 81123 296296 93728 0 3 0x4000082 thrsleep syz-fuzzer 81123 96886 93728 0 3 0x4000082 thrsleep syz-fuzzer 81123 257301 93728 0 3 0x4000082 kqread syz-fuzzer 81123 164135 93728 0 3 0x4000082 thrsleep syz-fuzzer 81123 33694 93728 0 3 0x4000082 thrsleep syz-fuzzer 93728 271099 83848 0 3 0x10008a sigsusp ksh 83848 220488 77985 0 3 0x9a kqread sshd 64775 27590 1 0 3 0x100083 ttyopn getty 77985 395397 1 0 3 0x88 kqread sshd 18002 417076 15037 74 3 0x1100092 bpf pflogd 15037 440090 1 0 3 0x80 netio pflogd 54156 329628 23602 73 3 0x1100090 kqread syslogd 23602 212535 1 0 3 0x100082 netio syslogd 56036 171648 1 0 3 0x100080 kqread resolvd 49704 279621 52555 77 3 0x100092 kqread dhcpleased 41071 95883 52555 77 3 0x100092 kqread dhcpleased 52555 504700 1 0 3 0x80 kqread dhcpleased 94996 200664 0 0 3 0x14200 bored smr 15248 35218 0 0 2 0x14200 zerothread 9635 156993 0 0 3 0x14200 aiodoned aiodoned 14172 485699 0 0 3 0x14200 syncer update 29345 127609 0 0 3 0x14200 cleaner cleaner 62907 324439 0 0 3 0x14200 reaper reaper 84170 81364 0 0 3 0x14200 pgdaemon pagedaemon 78571 424715 0 0 3 0x14200 bored viomb 25361 239683 0 0 3 0x40014200 acpi0 acpi0 50818 359102 0 0 7 0x40014200 idle1 72260 292438 0 0 3 0x14200 bored softnet 87905 353633 0 0 3 0x14200 bored systqmp 190 385801 0 0 3 0x14200 bored systq 15554 32656 0 0 3 0x40014200 bored softclock 58614 175854 0 0 3 0x40014200 idle0 1 293793 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 80489 (syz-executor.4) thread 0xffff80002e3e07e8 (345473) exclusive rwlock pf_lock r = 0 (0xffffffff82968010) #0 witness_lock+0x44d #1 pfioctl+0x4504 sys/net/pf_ioctl.c:2931 #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 (0xffffffff82968070) #0 witness_lock+0x44d #1 pfioctl+0x946 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 (0xffffffff82ae5250) #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 10225 6521K 10612K 78643K 50425 0 pcb 13 20K 23K 78643K 6817 0 rtable 289 26K 31K 78643K 6068 0 ifaddr 113 26K 27K 78643K 3308 0 sysctl 3 1K 1K 78643K 5 0 counters 56 35K 36K 78643K 468 0 ioctlops 0 0K 8K 78643K 22574 0 iov 0 0K 20K 78643K 2712 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1443 90K 91K 78643K 15001 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 256 0 VM map 2 1K 1K 78643K 2 0 sem 13 10K 20K 78643K 2489 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 18 65K 89K 78643K 44146 0 sigio 0 0K 0K 78643K 592 0 proc 71 91K 128K 78643K 2790 0 subproc 104 6K 6K 78643K 692 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 6816 0 in_multi 79 5K 6K 78643K 3281 0 ether_multi 1 0K 0K 78643K 1183 0 mrt 2 0K 0K 78643K 500 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 247 1102K 1102K 78643K 247 0 exec 0 0K 2K 78643K 4885 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 606 1109K 1109K 78643K 258750 0 UVM aobj 131 8K 8K 78643K 137 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 1581 0 NDP 15 0K 1K 78643K 363 0 temp 157 4760K 4998K 78643K 278772 0 kqueue 13 20K 26K 78643K 2599 0 SYN cache 2 2352K 2360K 78643K 3 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 1316 0 1313 20 19 1 3 0 8 0 rtentry 112 1578 0 1479 5 1 4 4 0 8 0 unpcb 136 70790 0 70770 424 418 6 13 0 8 5 syncache 296 47 0 47 14 14 0 1 0 8 0 tcpqe 32 15 0 15 6 6 0 1 0 8 0 tcpcb 736 13659 0 13649 367 366 1 21 0 8 0 arp 120 246 0 230 3 1 2 2 0 8 0 inpcb 312 49546 0 49537 399 398 1 16 0 8 0 nd6 48 200 0 175 1 0 1 1 0 8 0 pkpcb 40 197 0 197 15 15 0 1 0 8 0 kcovpl 48 53 0 45 1 0 1 1 0 8 0 ppxss 1248 70 0 70 19 19 0 1 0 8 0 pfstscr 40 671 0 671 10 10 0 1 0 8 0 pffrag 232 2686 0 2686 102 102 0 66 0 482 0 pffrnode 88 490 0 490 15 15 0 1 0 8 0 pffrent 40 3512 0 3512 31 31 0 12 0 8 0 pfosfp 40 1442 0 1016 5 0 5 5 0 8 0 pfosfpen 112 1442 0 723 21 0 21 21 0 8 0 pfrke_plain 168 9 0 9 2 2 0 1 0 8 0 pfrktable 1344 954 0 925 12 9 3 4 0 8 0 pftag 88 44 0 21 2 1 1 1 0 8 0 pfqueue 264 3 0 3 1 1 0 1 0 8 0 pfstitem 24 74 0 72 1 0 1 1 0 8 0 pfstkey 112 1324 0 1322 1 0 1 1 0 8 0 pfstate 336 695 0 693 4 3 1 3 0 8 0 pfsrctr 152 30 0 30 1 1 0 1 0 8 0 pfrule 1360 5677 0 5317 94 63 31 46 0 8 0 rttmrq 48 1701 0 1697 1 0 1 1 0 8 0 rttmr 72 29 0 29 4 4 0 1 0 8 0 art_heap8 4096 5 0 4 5 4 1 2 0 8 0 art_heap4 256 4167 0 3756 53 25 28 34 0 8 0 art_table 32 4172 0 3760 6 2 4 5 0 8 0 art_node 16 1316 0 1233 1 0 1 1 0 8 0 sysvmsgpl 40 41 0 1 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 2477 0 2466 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 58945 0 57428 96 0 96 96 0 8 0 ffsino 272 58945 0 57428 102 0 102 102 0 8 0 nchpl 144 119681 0 118037 63 0 63 63 0 8 0 rtmask 32 18 0 18 2 2 0 1 0 8 0 uvmvnodes 80 7074 0 0 145 0 145 145 0 8 0 vnodes 224 7074 0 0 417 0 417 417 0 8 0 namei 1024 406726 0 406726 10 9 1 2 0 8 1 percpumem 16 246 0 206 1 0 1 1 0 8 0 vcpupl 2048 261 0 0 33 0 33 33 0 8 0 vmpool 560 415 0 154 20 1 19 19 0 8 0 pfiaddrpl 120 398 0 367 7 6 1 2 0 8 0 kstatmem 264 442 0 412 5 2 3 3 0 8 0 scsiplug 72 20 0 20 6 5 1 1 0 8 1 scxspl 216 335142 0 335142 44 43 1 8 0 8 1 plimitpl 152 2686 0 2671 1 0 1 1 0 8 0 sigapl 424 44409 0 44342 8 0 8 8 0 8 0 futexpl 64 417631 0 417625 6 5 1 1 0 8 0 knotepl 120 2056 0 0 15 1 14 15 0 8 0 kqueuepl 216 7810 0 7801 147 146 1 6 0 8 0 pipepl 336 5980 0 5952 198 190 8 13 0 8 5 fdescpl 496 44346 0 44315 6 2 4 5 0 8 0 filepl 152 310048 0 309796 487 472 15 28 0 8 4 lockfpl 104 8579 0 8576 12 11 1 2 0 8 0 lockfspl 48 2244 0 2241 1 0 1 1 0 8 0 sessionpl 144 69 0 52 1 0 1 1 0 8 0 pgrppl 48 195 0 178 1 0 1 1 0 8 0 ucredpl 96 22523 0 22508 1 0 1 1 0 8 0 zombiepl 144 44342 0 44342 3 2 1 1 0 8 1 processpl 1064 44409 0 44342 5 0 5 5 0 8 0 procpl 672 128061 0 127978 52 44 8 9 0 8 0 srpgc 96 36 0 36 14 14 0 1 0 8 0 sosppl 168 457 0 457 47 47 0 1 0 8 0 sockpl 480 122041 0 122009 2354 2342 12 55 0 8 7 mcl64k 65536 92 0 0 8 5 3 3 0 8 0 mcl16k 16384 49 0 0 6 3 3 3 0 8 0 mcl12k 12288 65 0 0 2 0 2 2 0 8 0 mcl9k 9216 41 0 0 2 0 2 2 0 8 0 mcl8k 8192 73 0 0 4 1 3 3 0 8 0 mcl4k 4096 1390 0 0 167 124 43 165 0 8 4 mcl2k2 2112 26 0 0 2 1 1 2 0 8 0 mcl2k 2048 460 0 0 23 7 16 21 0 8 0 mtagpl 96 1483 0 0 13 2 11 13 0 8 0 mbufpl 256 3335 0 0 152 0 152 152 0 8 0 bufpl 288 61163 0 54087 506 0 506 506 0 8 0 anonpl 24 9010755 0 8993576 433 308 125 192 0 186 0 amapchunkpl 152 750284 0 749559 184 154 30 60 0 158 0 amappl16 200 150701 0 150074 272 238 34 56 0 8 0 amappl15 192 12163 0 12158 1 0 1 1 0 8 0 amappl14 184 2980 0 2971 1 0 1 1 0 8 0 amappl13 176 5598 0 5596 1 0 1 1 0 8 0 amappl12 168 7302 0 7297 1 0 1 1 0 8 0 amappl11 160 3141 0 3118 2 1 1 2 0 8 0 amappl10 152 2161 0 2151 1 0 1 1 0 8 0 amappl9 144 10681 0 10678 1 0 1 1 0 8 0 amappl8 136 4091 0 3890 7 0 7 7 0 8 0 amappl7 128 2406 0 2394 1 0 1 1 0 8 0 amappl6 120 10809 0 10783 2 1 1 2 0 8 0 amappl5 112 35550 0 35528 1 0 1 1 0 8 0 amappl4 104 9052 0 9012 5 3 2 2 0 8 0 amappl3 96 144718 0 144662 2 0 2 2 0 8 0 amappl2 88 57151 0 57067 3 1 2 3 0 8 0 amappl1 80 1056620 0 1055916 25 10 15 20 0 8 0 amappl 88 256805 0 256531 7 0 7 7 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 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 44761 0 44469 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 44761 0 44469 2 0 2 2 0 8 0 vmmpekpl 168 302098 0 301997 5 0 5 5 0 8 0 vmmpepl 168 4308502 0 4304706 500 325 175 177 0 357 9 vmsppl 368 44760 0 44469 28 1 27 27 0 8 0 rwobjpl 56 1083843 0 1074721 156 27 129 131 0 8 0 pdppl 4096 89529 0 89199 1918 1588 330 330 0 8 0 pvpl 32 17336604 0 17314306 866 669 197 331 0 265 0 pmappl 248 44760 0 44469 20 1 19 19 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 4179 0 2789 41 0 41 41 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:437 witness_checkorder(ffffffff829323b0,9,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffffffff829323b0,9,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1105 rw_enter_write(ffffffff829323a0) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 uvn_io(fffffd806511ff40,ffff80002aff6c18,1,202,0) at uvn_io+0x418 sys/uvm/uvm_vnode.c:1245 uvn_get(fffffd806511ff40,0,ffff80002aff6cd8,ffff80002aff6ca8,0,0,8e35cb80a4273981,1) at uvn_get+0x1df sys/uvm/uvm_vnode.c:1078 uvm_fault_lower(ffff80002aff6e40,ffff80002aff6e78,ffff80002aff6dc0,0) at uvm_fault_lower+0x36c sys/uvm/uvm_fault.c:1275 uvm_fault(fffffd805c2405f0,20001000,0,2) at uvm_fault+0x248 kpageflttrap(ffff80002aff6fd0,20001000) at kpageflttrap+0x209 kerntrap(ffff80002aff6fd0) 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,ffff80002aff7440,1,ffff80002e3e07e8) at pfioctl+0x4516 sys/net/pf_ioctl.c:2932 VOP_IOCTL(fffffd806f67a8e8,c0284457,ffff80002aff7440,1,fffffd807f7d77e0,ffff80002e3e07e8) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806c7c51e8,c0284457,ffff80002aff7440,ffff80002e3e07e8) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002e3e07e8,ffff80002aff7558,ffff80002aff75b0) at sys_ioctl+0x4a2 syscall(ffff80002aff7620) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002aff7620) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7bea683a0, 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 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