uvm_fault(0xfffffd807f00bcf0, 0x6703813e, 0, 1) -> e kernel: page fault trap, code=0 Stopped at pfi_kif_update+0xf6: movq 0x40(%rax),%rbx ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807f00bcf0, 0x6703813e, 0, 1) -> e pfi_kif_update(ffff800000c29000) at pfi_kif_update+0xf6 end trace frame: 0xffff800022d75140, count: 0 ddb{0}> trace pfi_kif_update(ffff800000c29000) at pfi_kif_update+0xf6 pfi_detach_ifnet(ffff800000c3c000) at pfi_detach_ifnet+0x4d sys/net/pf_if.c:267 if_detach(ffff800000c3c000) at if_detach+0x15d sys/net/if.c:1114 tun_clone_destroy(ffff800000c3c000) at tun_clone_destroy+0x1c7 sys/net/if_tun.c:278 spec_close(ffff800022d75270) at spec_close+0x311 sys/kern/spec_vnops.c:555 VOP_CLOSE(fffffd8062c55dd8,2,fffffd807f7c6ba0,ffff800020aceca8) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:175 vn_closefile(fffffd8063914ac8,ffff800020aceca8) at vn_closefile+0xd8 vn_close sys/kern/vfs_vnops.c:301 [inline] vn_closefile(fffffd8063914ac8,ffff800020aceca8) at vn_closefile+0xd8 sys/kern/vfs_vnops.c:613 fdrop(fffffd8063914ac8,ffff800020aceca8) at fdrop+0xc2 sys/kern/kern_descrip.c:1273 closef(fffffd8063914ac8,ffff800020aceca8) at closef+0x11d sys/kern/kern_descrip.c:1257 fdfree(ffff800020aceca8) at fdfree+0x101 sys/kern/kern_descrip.c:1189 exit1(ffff800020aceca8,0,1) at exit1+0x32f sys/kern/kern_exit.c:196 sys_exit(ffff800020aceca8,ffff800022d75500,ffff800022d75550) at sys_exit+0x17 sys/kern/kern_exit.c:94 syscall(ffff800022d755d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800022d755d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,1,0,1,0,7f7ffffe0d74) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe0d40, count: -14 ddb{0}> show registers rdi 0xffff800000c29000 rsi 0x181c __ALIGN_SIZE+0x81c rbp 0xffff800022d75100 rbx 0xffff800000c29000 rdx 0 rcx 0 rax 0x670380fe r8 0xffffffff81bbd5db refcnt_rele_wake+0x3b r9 0x5 r10 0x1 r11 0x72876a021e62432b r12 0x35a r13 0 r14 0xffff800000c29000 r15 0 rip 0xffffffff81d79a86 pfi_kif_update+0xf6 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800022d750b0 ss 0x10 pfi_kif_update+0xf6: movq 0x40(%rax),%rbx ddb{0}> show proc PROC (syz-executor.1) pid=210523 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020acea30,0xffff800020ace7c8 process=0xffff800020a4b188 user=0xffff800022d70000, vmspace=0xfffffd807f00bcf0 estcpu=36, cpticks=4, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 88519 493900 42141 0 2 0 syz-executor.0 88519 482164 42141 0 3 0x4000080 fsleep syz-executor.0 88519 74018 42141 0 3 0x4000080 fsleep syz-executor.0 88519 366193 42141 0 3 0x4000080 fsleep syz-executor.0 88519 24762 42141 0 2 0x4000000 syz-executor.0 87611 267881 74835 0 3 0x82 nanosleep syz-executor.1 42141 475825 74835 0 3 0x82 nanosleep syz-executor.0 24377 42733 1 0 3 0x100083 ttyopn getty 37553 214020 0 0 3 0x14200 acct acct 24840 68590 0 0 3 0x14200 bored sosplice 74835 403071 6362 0 3 0x82 thrsleep syz-fuzzer 74835 287592 6362 0 3 0x4000082 thrsleep syz-fuzzer 74835 450663 6362 0 3 0x4000082 thrsleep syz-fuzzer 74835 56153 6362 0 3 0x4000082 thrsleep syz-fuzzer 74835 462730 6362 0 3 0x4000082 thrsleep syz-fuzzer 74835 188141 6362 0 3 0x4000082 thrsleep syz-fuzzer 74835 222574 6362 0 3 0x4000082 thrsleep syz-fuzzer 74835 239752 6362 0 3 0x4000082 thrsleep syz-fuzzer 74835 110878 6362 0 3 0x4000082 thrsleep syz-fuzzer 74835 449122 6362 0 3 0x4000082 kqread syz-fuzzer 6362 419102 88696 0 3 0x10008a pause ksh 88696 38771 82128 0 3 0x92 select sshd 82128 462003 1 0 3 0x80 select sshd 71532 113408 60535 74 3 0x100092 bpf pflogd 60535 124745 1 0 3 0x80 netio pflogd 31384 82073 49044 73 3 0x100090 kqread syslogd 49044 22249 1 0 3 0x100082 netio syslogd 43683 233919 1 77 3 0x100090 poll dhclient 9215 391391 1 0 3 0x80 poll dhclient 68892 238793 0 0 2 0x14200 zerothread 35082 100991 0 0 3 0x14200 aiodoned aiodoned 52226 398371 0 0 3 0x14200 syncer update 703 233718 0 0 3 0x14200 cleaner cleaner 67406 440967 0 0 7 0x14200 reaper 57066 500144 0 0 3 0x14200 pgdaemon pagedaemon 77226 333889 0 0 3 0x14200 bored crynlk 64012 379184 0 0 3 0x14200 bored crypto 13413 299774 0 0 3 0x40014200 acpi0 acpi0 16744 440352 0 0 3 0x40014200 idle1 11578 506695 0 0 2 0x14200 softnet 15363 483018 0 0 3 0x14200 bored systqmp 69010 35205 0 0 3 0x14200 bored systq 65441 200883 0 0 3 0x40014200 bored softclock 27474 81993 0 0 3 0x40014200 idle0 94055 321965 0 0 3 0x14200 bored smr 1 76514 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9662 6491K 8170K 78643K 52831 0 0 pcb 13 12K 14K 78643K 5757 0 0 rtable 225 20K 21K 78643K 20910 0 0 ifaddr 146 40K 42K 78643K 4602 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 2269 0 0 iov 0 0K 32K 78643K 7078 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1229 77K 77K 78643K 18960 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 196 0 0 VM map 130 65K 65K 78643K 198 0 0 sem 12 0K 1K 78643K 9965 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 6 17K 25K 78643K 22538 0 0 sigio 0 0K 0K 78643K 190 0 0 proc 62 63K 95K 78643K 6822 0 0 subproc 32 2K 2K 78643K 2085 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 1502 0 0 in_multi 52 3K 4K 78643K 6287 0 0 ether_multi 1 0K 0K 78643K 211 0 0 mrt 0 0K 0K 78643K 760 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 210 927K 927K 78643K 210 0 0 exec 0 0K 1K 78643K 3423 0 0 pfkey data 0 0K 4K 78643K 7 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 311 986K 986K 78643K 74060 0 0 UVM aobj 130 4K 4K 78643K 130 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 4102 0 0 NDP 27 0K 1K 78643K 1872 0 0 temp 277 3566K 4206K 78643K 542306 0 0 kqueue 0 0K 0K 78643K 409 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 420 0 413 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 4593 0 4591 1 0 1 1 0 8 0 rtentry 112 5280 0 5185 4 1 3 3 0 8 0 unpcb 120 15620 0 15593 38 36 2 2 0 8 0 syncache 264 129 0 129 37 37 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 213 0 213 29 29 0 1 0 8 0 tcpcb 544 22275 0 22270 88 86 2 13 0 8 1 inpcb 280 50424 0 50412 129 126 3 13 0 8 2 rttmr 72 360 0 359 5 4 1 1 0 8 0 ip6q 72 12 0 12 6 6 0 1 0 8 0 ip6af 40 23 0 23 7 7 0 1 0 8 0 nd6 48 959 0 958 10 9 1 1 0 8 0 pkpcb 40 221 0 221 41 41 0 1 0 8 0 swfcl 56 12 0 0 1 0 1 1 0 8 0 ppxss 1128 617 0 617 38 37 1 1 0 8 1 pffrag 232 416 0 416 58 57 1 1 0 482 1 pffrnode 88 416 0 416 58 57 1 1 0 8 1 pffrent 40 12271 0 12271 58 57 1 1 0 8 1 pfosfp 40 846 0 846 5 5 0 5 0 8 0 pfosfpen 112 1428 0 1428 21 21 0 21 0 8 0 pfstitem 24 1518 0 1438 2 0 2 2 0 8 0 pfstkey 112 1520 0 1440 8 4 4 6 0 8 0 pfstate 328 1520 0 1440 25 18 7 18 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 22 0 16 15 9 6 6 0 8 0 art_heap4 256 28289 0 27955 68 43 25 28 0 8 1 art_table 32 28311 0 27971 5 1 4 4 0 8 0 art_node 16 5259 0 5199 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 9963 0 9953 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 dino1pl 128 35458 0 33962 49 0 49 49 0 8 0 ffsino 272 35458 0 33962 100 0 100 100 0 8 0 nchpl 144 80874 0 80405 60 40 20 60 0 8 0 uvmvnodes 72 9013 0 0 164 0 164 164 0 8 0 vnodes 208 9013 0 0 475 0 475 475 0 8 0 namei 1024 298026 0 298026 8 7 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 129 0 1 16 0 16 16 0 8 0 vmpool 552 196 0 68 12 2 10 10 0 8 0 scsiplug 64 19 0 19 13 13 0 1 0 8 0 scxspl 192 216659 0 216659 114 113 1 7 0 8 1 plimitpl 152 1444 0 1436 1 0 1 1 0 8 0 sigapl 432 22385 0 22369 4 2 2 3 0 8 0 futexpl 56 582864 0 582861 4 3 1 1 0 8 0 knotepl 112 5130 0 5111 13 11 2 3 0 8 1 kqueuepl 104 6398 0 6396 13 12 1 4 0 8 0 pipepl 112 9880 0 9859 22 21 1 2 0 8 0 fdescpl 488 22386 0 22369 3 0 3 3 0 8 0 filepl 152 242438 0 242323 156 148 8 14 0 8 3 lockfpl 104 8680 0 8679 1 0 1 1 0 8 0 lockfspl 48 3329 0 3328 1 0 1 1 0 8 0 sessionpl 112 143 0 132 1 0 1 1 0 8 0 pgrppl 48 387 0 376 1 0 1 1 0 8 0 ucredpl 96 34528 0 34518 1 0 1 1 0 8 0 zombiepl 144 22370 0 22369 5 4 1 1 0 8 0 processpl 896 22403 0 22369 5 1 4 5 0 8 0 procpl 632 66913 0 66865 11 6 5 5 0 8 0 srpgc 64 267 0 267 58 58 0 1 0 8 0 sosppl 128 444 0 444 62 61 1 1 0 8 1 sockpl 384 71119 0 71079 257 249 8 23 0 8 2 mcl64k 65536 761 0 0 84 81 3 66 0 8 0 mcl16k 16384 49 0 0 5 2 3 3 0 8 0 mcl12k 12288 57 0 0 2 0 2 2 0 8 0 mcl9k 9216 33 0 0 2 0 2 2 0 8 0 mcl8k 8192 41 0 0 3 0 3 3 0 8 0 mcl4k 4096 42 0 0 4 1 3 3 0 8 0 mcl2k2 2112 12 0 0 1 0 1 1 0 8 0 mcl2k 2048 455 0 0 22 14 8 21 0 8 0 mtagpl 80 283 0 0 4 1 3 3 0 8 0 mbufpl 256 1743 0 0 37 1 36 37 0 8 0 bufpl 256 70716 0 61701 564 0 564 564 0 8 0 anonpl 16 2464661 0 2441221 418 317 101 109 0 124 3 amapchunkpl 152 148172 0 147962 204 193 11 21 0 158 0 amappl16 192 118547 0 117184 613 538 75 79 0 8 5 amappl15 184 3949 0 3942 1 0 1 1 0 8 0 amappl14 176 5915 0 5904 1 0 1 1 0 8 0 amappl13 168 3259 0 3259 15 15 0 1 0 8 0 amappl12 160 2249 0 2247 1 0 1 1 0 8 0 amappl11 152 2417 0 2400 1 0 1 1 0 8 0 amappl10 144 2694 0 2689 1 0 1 1 0 8 0 amappl9 136 4221 0 4218 1 0 1 1 0 8 0 amappl8 128 3759 0 3688 4 1 3 3 0 8 0 amappl7 120 3153 0 3143 1 0 1 1 0 8 0 amappl6 112 2153 0 2138 1 0 1 1 0 8 0 amappl5 104 3352 0 3338 1 0 1 1 0 8 0 amappl4 96 21626 0 21586 10 8 2 2 0 8 1 amappl3 88 10920 0 10913 1 0 1 1 0 8 0 amappl2 80 174656 0 174553 9 6 3 3 0 8 0 amappl1 72 491307 0 490846 25 15 10 20 0 8 0 amappl 80 69508 0 69395 7 4 3 3 0 84 0 dma4096 4096 1 0 1 1 1 0 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 17 0 17 1 1 0 1 0 8 0 aobjpl 64 129 0 0 3 0 3 3 0 8 0 uaddrrnd 24 22582 0 22369 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 22582 0 22369 2 0 2 2 0 8 0 vmmpekpl 168 146317 0 146258 4 1 3 3 0 8 0 vmmpepl 168 2826471 0 2823437 744 559 185 188 0 357 50 vmsppl 368 22385 0 22369 2 0 2 2 0 8 0 pdppl 4096 45171 0 45002 26 4 22 22 0 8 0 pvpl 32 6859153 0 6836387 785 583 202 226 0 265 9 pmappl 232 22581 0 22437 11 2 9 9 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 1033 0 251 24 1 23 23 0 8 0