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(ffffffff82a87fb0,ffff800000be1800) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000be1c90) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfi_dynaddr_setup(ffff800000d78e20,0) at pfi_dynaddr_setup+0x411 sys/net/pf_if.c:485 pfioctl(4900,cd60441a,ffff800000c08000,3,ffff80002af17ce0) at pfioctl+0x8f71 pf_addr_setup sys/net/pf_ioctl.c:896 [inline] pfioctl(4900,cd60441a,ffff800000c08000,3,ffff80002af17ce0) at pfioctl+0x8f71 sys/net/pf_ioctl.c:1661 VOP_IOCTL(fffffd806f68b808,cd60441a,ffff800000c08000,3,fffffd807f7d8780,ffff80002af17ce0) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8067daeed8,cd60441a,ffff800000c08000,ffff80002af17ce0) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002af17ce0,ffff800027af4258,ffff800027af42b0) at sys_ioctl+0x4a2 syscall(ffff800027af4320) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027af4320) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xacb57f9ef90, count: -9 ddb{0}> show registers rdi 0xffff8000294ff000 rsi 0xc92 rbp 0xffff800027af3d30 rbx 0xffffffff82a87fb0 pf_anchors rdx 0xffff8000294ff000 rcx 0xc91 rax 0xffffffff819e365b pf_anchor_global_RB_REMOVE+0x2b r8 0x400 r9 0x8080808080808080 r10 0xba49de237f3a996 r11 0x3e6db9ab5bd9349 r12 0xcc563faedd140a59 r13 0xffffffff82a87fb8 pf_main_anchor r14 0xffff800000be1800 r15 0xdeaf007fdeafbead rip 0xffffffff819e3688 pf_anchor_global_RB_REMOVE+0x58 cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff800027af3ce0 ss 0x10 pf_anchor_global_RB_REMOVE+0x58: movq 0(%r12),%rbx ddb{0}> show proc PROC (syz-executor.5) pid=89569 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=84, nice=20 forw=0xffffffffffffffff, list=0xffff80002af17260,0xffff80002af16010 process=0xffff8000fffe94e8 user=0xffff800027aef000, vmspace=0xfffffd805ea5e018 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 73823 452769 84915 0 2 0 syz-executor.7 25628 359858 93493 0 2 0 syz-executor.1 25628 518503 93493 0 2 0x4000000 syz-executor.1 25628 370502 93493 0 3 0x4000080 fsleep syz-executor.1 74388 20583 17282 0 2 0 syz-executor.5 *74388 89569 17282 0 7 0x4000000 syz-executor.5 90108 438309 64387 0 2 0x2 syz-executor.0 57547 484811 64387 0 2 0x2 syz-executor.3 40674 160217 0 0 3 0x14200 acct acct 84915 279761 64387 0 3 0x82 nanoslp syz-executor.7 28727 431194 1 0 3 0x100083 ttyin getty 88394 73427 64387 0 3 0x82 nanoslp syz-executor.2 93493 520389 64387 0 3 0x82 nanoslp syz-executor.1 65684 160709 64387 0 2 0x2 syz-executor.4 17282 382556 64387 0 3 0x82 nanoslp syz-executor.5 39238 47085 0 0 3 0x14200 bored sosplice 64387 48786 17221 0 3 0x82 thrsleep syz-fuzzer 64387 383954 17221 0 3 0x4000082 nanoslp syz-fuzzer 64387 241595 17221 0 3 0x4000082 thrsleep syz-fuzzer 64387 100094 17221 0 3 0x4000082 thrsleep syz-fuzzer 64387 418364 17221 0 3 0x4000082 thrsleep syz-fuzzer 64387 523505 17221 0 3 0x4000082 thrsleep syz-fuzzer 64387 384216 17221 0 2 0x4000002 syz-fuzzer 64387 123520 17221 0 3 0x4000082 thrsleep syz-fuzzer 64387 134059 17221 0 3 0x4000082 thrsleep syz-fuzzer 17221 308462 22863 0 3 0x10008a sigsusp ksh 22863 303584 68940 0 3 0x9a kqread sshd 68940 136899 1 0 3 0x88 kqread sshd 45130 340535 24309 74 3 0x1100092 bpf pflogd 24309 274469 1 0 3 0x80 netio pflogd 98333 159744 92967 73 3 0x1100090 kqread syslogd 92967 221477 1 0 3 0x100082 netio syslogd 7573 70149 1 0 3 0x100080 kqread resolvd 65696 183260 89487 77 3 0x100092 kqread dhcpleased 17659 264016 89487 77 3 0x100092 kqread dhcpleased 89487 308169 1 0 3 0x80 kqread dhcpleased 47144 406974 0 0 3 0x14200 bored smr 37819 428646 0 0 2 0x14200 zerothread 80969 39265 0 0 3 0x14200 aiodoned aiodoned 64126 44694 0 0 3 0x14200 syncer update 78922 158469 0 0 3 0x14200 cleaner cleaner 11370 69412 0 0 7 0x14200 reaper 21834 107931 0 0 3 0x14200 pgdaemon pagedaemon 67251 255586 0 0 3 0x14200 bored viomb 28049 195584 0 0 3 0x40014200 acpi0 acpi0 64585 143655 0 0 3 0x40014200 idle1 44877 11647 0 0 3 0x14200 bored softnet 31769 184770 0 0 3 0x14200 bored systqmp 4925 440514 0 0 3 0x14200 bored systq 59183 8756 0 0 3 0x40014200 bored softclock 82022 416161 0 0 3 0x40014200 idle0 1 284643 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 74388 (syz-executor.5) thread 0xffff80002af17ce0 (89569) exclusive rwlock pf_lock r = 0 (0xffffffff8292c5d0) #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 (0xffffffff82915860) #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 (0xffffffff8292c630) #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 (0xffffffff82a44cb0) #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 57547 (syz-executor.3) thread 0xffff80002e382548 (484811) exclusive rrwlock inode r = 0 (0xfffffd807d4d16f8) #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 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807d4d11a8) #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 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #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 10229 6574K 7151K 78643K 40226 0 pcb 13 16K 18K 78643K 1791 0 rtable 195 9K 11K 78643K 4673 0 ifaddr 106 24K 26K 78643K 2028 0 sysctl 3 1K 1K 78643K 3 0 counters 56 35K 36K 78643K 340 0 ioctlops 1 4K 8K 78643K 7872 0 iov 0 0K 32K 78643K 1480 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1432 89K 90K 78643K 12631 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 174 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 1015 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 12 41K 93K 78643K 18490 0 sigio 0 0K 0K 78643K 175 0 proc 70 87K 124K 78643K 2406 0 subproc 91 5K 6K 78643K 643 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 924 0 in_multi 69 4K 7K 78643K 1313 0 ether_multi 1 0K 0K 78643K 118 0 mrt 2 0K 0K 78643K 87 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 3737 0 pfkey data 0 0K 0K 78643K 12 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 489 1062K 1076K 78643K 111454 0 UVM aobj 131 5K 5K 78643K 136 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 608 0 NDP 15 0K 2K 78643K 334 0 temp 157 4760K 5004K 78643K 186162 0 kqueue 12 18K 30K 78643K 1454 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 1441 0 1438 27 26 1 5 0 8 0 rtentry 112 1070 0 993 4 0 4 4 0 8 0 unpcb 136 10075 0 10060 94 91 3 9 0 8 2 syncache 296 32 0 32 11 10 1 1 0 8 1 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 111 51 111 3 3 0 1 0 8 0 tcpcb 736 4914 0 4902 179 174 5 14 0 8 2 arp 120 111 0 96 1 0 1 1 0 8 0 inpcb 312 27509 0 27496 236 227 9 15 0 8 7 rttmr 72 23 0 23 8 8 0 1 0 8 0 nd6 48 242 0 226 1 0 1 1 0 8 0 pkpcb 40 103 0 103 14 14 0 1 0 8 0 kcovpl 48 49 0 42 1 0 1 1 0 8 0 ppxss 1248 40 0 40 13 12 1 1 0 8 1 pfstscr 40 228 0 219 1 0 1 1 0 8 0 pffrag 232 31 0 30 8 7 1 1 0 482 0 pffrnode 88 31 0 30 8 7 1 1 0 8 0 pffrent 40 290 0 289 9 8 1 1 0 8 0 pfosfp 40 1514 0 1085 5 0 5 5 0 8 0 pfosfpen 112 1514 0 721 23 0 23 23 0 8 0 pfrktable 1344 648 347 645 11 10 1 1 0 8 0 pftag 88 25 0 12 1 0 1 1 0 8 0 pfqueue 264 3 0 3 2 2 0 1 0 8 0 pfstitem 24 72 0 58 1 0 1 1 0 8 0 pfstkey 112 491 0 486 1 0 1 1 0 8 0 pfstate 320 320 0 309 3 1 2 3 0 8 0 pfrule 1360 2273 0 2255 34 31 3 24 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 5331 0 5028 43 18 25 31 0 8 0 art_table 32 5332 0 5028 4 0 4 4 0 8 0 art_node 16 1068 0 1001 1 0 1 1 0 8 0 sysvmsgpl 40 52 0 12 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 1012 0 1002 1 0 1 1 0 8 0 shmpl 112 133 0 5 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 26629 0 25151 93 0 93 93 0 8 0 ffsino 272 26629 0 25151 100 0 100 100 0 8 0 nchpl 144 50436 0 48803 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 177459 0 177458 6 5 1 2 0 8 0 percpumem 16 182 0 142 1 0 1 1 0 8 0 vcpupl 2048 69 0 1 9 0 9 9 0 8 0 vmpool 560 136 0 68 7 2 5 5 0 8 0 pfiaddrpl 120 430 0 429 10 9 1 1 0 8 0 scsiplug 72 11 0 11 3 2 1 1 0 8 1 scxspl 216 141183 0 141183 25 24 1 8 0 8 1 plimitpl 152 2345 0 2331 1 0 1 1 0 8 0 sigapl 424 18742 0 18700 9 3 6 8 0 8 0 futexpl 64 161167 0 161166 2 1 1 1 0 8 0 knotepl 120 1213 0 0 17 0 17 17 0 8 0 kqueuepl 216 3833 0 3825 66 65 1 5 0 8 0 pipepl 336 3077 0 3052 73 67 6 8 0 8 3 fdescpl 496 18702 0 18677 7 3 4 5 0 8 0 filepl 152 131000 0 130779 198 183 15 25 0 8 5 lockfpl 104 4660 0 4658 10 8 2 2 0 8 1 lockfspl 48 1216 0 1214 1 0 1 1 0 8 0 sessionpl 144 69 0 53 1 0 1 1 0 8 0 pgrppl 48 177 0 161 1 0 1 1 0 8 0 ucredpl 96 22909 0 22897 1 0 1 1 0 8 0 zombiepl 144 18701 0 18700 2 1 1 1 0 8 0 processpl 1064 18742 0 18700 5 0 5 5 0 8 0 procpl 672 54564 0 54511 28 21 7 10 0 8 0 srpgc 96 39 0 39 12 12 0 1 0 8 0 sosppl 168 102 0 102 22 21 1 1 0 8 1 sockpl 480 39225 0 39194 665 652 13 35 0 8 8 mcl64k 65536 49 0 0 5 2 3 3 0 8 0 mcl16k 16384 38 0 0 5 2 3 3 0 8 0 mcl12k 12288 25 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 5 2 3 3 0 8 0 mcl2k2 2112 14 0 0 1 0 1 1 0 8 0 mcl2k 2048 516 0 0 24 2 22 24 0 8 0 mtagpl 96 1242 0 0 20 0 20 20 0 8 0 mbufpl 256 4800 0 0 296 1 295 295 0 8 0 bufpl 288 30506 0 24176 453 0 453 453 0 8 0 anonpl 24 3624933 0 3607215 320 191 129 170 0 186 0 amapchunkpl 152 331969 0 331336 106 72 34 48 0 158 0 amappl16 200 48052 0 47370 176 137 39 49 0 8 0 amappl15 192 4575 0 4572 1 0 1 1 0 8 0 amappl14 184 2601 0 2597 2 1 1 1 0 8 0 amappl13 176 1557 0 1553 1 0 1 1 0 8 0 amappl12 168 2252 0 2242 1 0 1 1 0 8 0 amappl11 160 1893 0 1872 1 0 1 1 0 8 0 amappl10 152 1396 0 1386 1 0 1 1 0 8 0 amappl9 144 2853 0 2849 1 0 1 1 0 8 0 amappl8 136 5490 0 5347 6 1 5 6 0 8 0 amappl7 128 4144 0 4131 1 0 1 1 0 8 0 amappl6 120 2893 0 2872 2 1 1 2 0 8 0 amappl5 112 14827 0 14811 1 0 1 1 0 8 0 amappl4 104 6398 0 6363 2 0 2 2 0 8 0 amappl3 96 58377 0 58335 2 0 2 2 0 8 0 amappl2 88 22906 0 22839 3 1 2 3 0 8 0 amappl1 80 448395 0 447831 22 7 15 20 0 8 0 amappl 88 109788 0 109561 6 0 6 6 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 72 135 0 5 3 0 3 3 0 8 0 uaddrrnd 24 18838 0 18745 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 18838 0 18745 1 0 1 1 0 8 0 vmmpekpl 168 138490 0 138424 6 2 4 4 0 8 0 vmmpepl 168 1829890 0 1827301 335 189 146 159 0 357 2 vmsppl 368 18837 0 18744 11 2 9 9 0 8 0 rwobjpl 56 450750 0 442918 130 15 115 116 0 8 0 pdppl 4096 37683 0 37556 820 683 137 137 0 8 10 pvpl 32 7122560 0 7101017 643 438 205 329 0 265 6 pmappl 248 18837 0 18744 9 2 7 7 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 2402 0 1218 34 0 34 34 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pf_anchor_global_RB_REMOVE(ffffffff82a87fb0,ffff800000be1800) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000be1c90) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfi_dynaddr_setup(ffff800000d78e20,0) at pfi_dynaddr_setup+0x411 sys/net/pf_if.c:485 pfioctl(4900,cd60441a,ffff800000c08000,3,ffff80002af17ce0) at pfioctl+0x8f71 pf_addr_setup sys/net/pf_ioctl.c:896 [inline] pfioctl(4900,cd60441a,ffff800000c08000,3,ffff80002af17ce0) at pfioctl+0x8f71 sys/net/pf_ioctl.c:1661 VOP_IOCTL(fffffd806f68b808,cd60441a,ffff800000c08000,3,fffffd807f7d8780,ffff80002af17ce0) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8067daeed8,cd60441a,ffff800000c08000,ffff80002af17ce0) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002af17ce0,ffff800027af4258,ffff800027af42b0) at sys_ioctl+0x4a2 syscall(ffff800027af4320) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027af4320) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xacb57f9ef90, count: -9 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 __mp_lock(ffffffff82a44aa8) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82a44aa8) at __mp_lock+0x133 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800021135540,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1615 uvm_map_teardown(fffffd8075572d20) at uvm_map_teardown+0x262 sys/uvm/uvm_map.c:2789 uvmspace_free(fffffd8075572d20) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 reaper(ffff8000210f97a0) at reaper+0x19a sys/kern/kern_exit.c:454 end trace frame: 0x0, count: -9