@ sü˙˙panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 25997 18455 0 0 0x4000000 1 syz-executor.0 113992 33340 0 0x14000 0x200 0 softnet db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8265417e) at panic+0x177 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd80780c15e8,20000000,20001000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1651 uvm_fault_unwire(fffffd80780c15e8,20000000,20001000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1611 sys_sysctl(ffff800022d6cd28,ffff800025bcf378,ffff800025bcf3c0) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:255 syscall(ffff800025bcf440) at syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff800025bcf440) at syscall+0x438 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x56e15686840, count: 8 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault_unwire_locked: address not in map ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8265417e) at panic+0x177 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd80780c15e8,20000000,20001000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1651 uvm_fault_unwire(fffffd80780c15e8,20000000,20001000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1611 sys_sysctl(ffff800022d6cd28,ffff800025bcf378,ffff800025bcf3c0) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:255 syscall(ffff800025bcf440) at syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff800025bcf440) at syscall+0x438 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x56e15686840, count: -7 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800025bcf140 rbx 0xffff800020dd9b8f rdx 0 rcx 0 rax 0xffff800022d6cd28 r8 0x101010101010101 r9 0x8080808080808080 r10 0x8a74c62f31187046 r11 0x68af52f6b5235687 r12 0xffff800020dd9990 r13 0 r14 0 r15 0x1 rip 0xffffffff816c4fb8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800025bcf130 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=25997 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff8000212aed28,0xffff800022d6c558 process=0xffff8000ffff9d58 user=0xffff800025bca000, vmspace=0xfffffd80780c15e8 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 54504 478981 57619 0 2 0 syz-executor.2 12100 38002 17213 0 2 0 syz-executor.7 65637 298583 86961 0 2 0 syz-executor.5 65637 128850 86961 0 2 0x4000000 syz-executor.5 65637 520168 86961 0 2 0x4000000 syz-executor.5 80145 404940 66486 0 2 0 syz-executor.6 18455 402568 35075 0 2 0 syz-executor.0 18455 207181 35075 0 2 0x4000000 syz-executor.0 *18455 25997 35075 0 7 0x4000000 syz-executor.0 69422 393128 93021 0 2 0 syz-executor.3 74211 294135 85855 0 2 0 syz-executor.1 74211 275951 85855 0 3 0x4000080 netcon2 syz-executor.1 55826 101208 33302 0 2 0 syz-executor.4 55826 228959 33302 0 3 0x4000080 ttyout syz-executor.4 55826 380707 33302 0 2 0x4000000 syz-executor.4 85855 354104 99150 0 3 0x82 nanoslp syz-executor.1 57619 204899 99150 0 3 0x82 nanoslp syz-executor.2 35075 252065 99150 0 3 0x82 nanoslp syz-executor.0 55362 45158 1 0 3 0 vmmapbsy syz-executor.0 55362 302040 1 0 3 0x4000000 vmmaplk syz-executor.0 55362 495426 1 0 3 0x4000000 vmmapbsy syz-executor.0 86961 488942 99150 0 3 0x82 nanoslp syz-executor.5 39828 339271 0 0 3 0x14200 bored sosplice 17213 303437 99150 0 3 0x82 nanoslp syz-executor.7 33302 368461 99150 0 3 0x82 nanoslp syz-executor.4 66486 99275 99150 0 3 0x82 nanoslp syz-executor.6 93021 277619 99150 0 2 0x2 syz-executor.3 99150 133349 14763 0 3 0x82 thrsleep syz-fuzzer 99150 81454 14763 0 3 0x4000082 thrsleep syz-fuzzer 99150 126294 14763 0 3 0x4000082 thrsleep syz-fuzzer 99150 362070 14763 0 3 0x4000082 thrsleep syz-fuzzer 99150 260643 14763 0 3 0x4000082 wait syz-fuzzer 99150 219175 14763 0 3 0x4000082 wait syz-fuzzer 99150 18818 14763 0 3 0x4000082 thrsleep syz-fuzzer 99150 286167 14763 0 3 0x4000082 thrsleep syz-fuzzer 99150 59510 14763 0 3 0x4000082 wait syz-fuzzer 99150 154598 14763 0 3 0x4000082 wait syz-fuzzer 99150 236977 14763 0 3 0x4000082 wait syz-fuzzer 99150 409392 14763 0 3 0x4000082 kqread syz-fuzzer 99150 303737 14763 0 3 0x4000082 thrsleep syz-fuzzer 99150 496850 14763 0 3 0x4000082 wait syz-fuzzer 99150 451812 14763 0 3 0x4000082 wait syz-fuzzer 99150 233368 14763 0 3 0x4000082 wait syz-fuzzer 14763 456144 45519 0 3 0x10008a sigsusp ksh 45519 345557 94068 0 3 0x9a kqread sshd 58715 357960 1 0 3 0x100083 ttyin getty 94068 263879 1 0 3 0x88 kqread sshd 1358 518138 19055 74 3 0x1100092 bpf pflogd 19055 420363 1 0 3 0x80 netio pflogd 32264 173488 63303 73 3 0x1100010 biowait syslogd 63303 132683 1 0 3 0x100082 netio syslogd 9060 363986 1 0 3 0x100080 kqread resolvd 79110 414587 46562 77 3 0x100092 kqread dhcpleased 73394 392757 46562 77 3 0x100092 kqread dhcpleased 46562 253302 1 0 3 0x80 kqread dhcpleased 28059 119411 0 0 3 0x14200 bored smr 10443 393256 0 0 2 0x14200 zerothread 26202 24073 0 0 3 0x14200 aiodoned aiodoned 42414 461422 0 0 3 0x14200 syncer update 71401 485301 0 0 3 0x14200 cleaner cleaner 19197 150443 0 0 3 0x14200 reaper reaper 49722 453149 0 0 3 0x14200 pgdaemon pagedaemon 2338 63007 0 0 3 0x14200 bored viomb 97270 194844 0 0 3 0x40014200 acpi0 acpi0 79455 59316 0 0 3 0x40014200 idle1 8853 443213 0 0 3 0x14200 bored softnet 86056 439721 0 0 3 0x14200 bored softnet 33340 113992 0 0 7 0x14200 softnet 50634 20832 0 0 3 0x14200 bored softnet 5900 370003 0 0 3 0x14200 bored systqmp 55669 401392 0 0 3 0x14200 bored systq 32454 108298 0 0 3 0x40014200 bored softclock 99981 504637 0 0 3 0x40014200 idle0 1 31814 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 18455 (syz-executor.0) thread 0xffff800022d6cd28 (25997) shared rwlock vmmaplk r = 0 (0xfffffd80780c1690) #0 witness_lock+0x44d #1 uvm_fault_unwire+0x31 sys/uvm/uvm_fault.c:1610 #2 sys_sysctl+0x229 sys/kern/kern_sysctl.c:255 #3 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #3 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82ba95a8) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3bb sys/kern/sched_bsd.c:415 #3 sleep_finish+0x180 sys/kern/kern_synch.c:417 #4 rw_enter+0x35a sys/kern/kern_rwlock.c:286 #5 ip_sysctl+0x4be sys/netinet/ip_input.c:1727 #6 sys_sysctl+0x209 sys/kern/kern_sysctl.c:250 #7 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #7 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #8 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff8296ccf0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 sys_sysctl+0x1b3 sys/kern/kern_sysctl.c:234 #3 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #3 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #4 Xsyscall+0x128 Process 55362 (syz-executor.0) thread 0xffff800022d6c7e8 (302040) shared rwlock vmmaplk r = 0 (0xfffffd80780c1dc0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5332 #3 uvm_map_pageable+0x111 sys/uvm/uvm_map.c:2293 #4 sys_mlock+0x184 sys/uvm/uvm_mmap.c:834 #5 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #5 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #6 Xsyscall+0x128 Process 32264 (syslogd) thread 0xffff8000ffff77b0 (173488) exclusive rrwlock inode r = 0 (0xfffffd806e7561b0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0xf5 sys/kern/vfs_syscalls.c:2935 #6 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #6 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10208 6489K 7404K 78643K 12707 0 pcb 13 14K 19K 78643K 579 0 rtable 244 16K 16K 78643K 632 0 ifaddr 83 18K 18K 78643K 175 0 sysctl 3 1K 1K 78643K 3 0 counters 64 36K 36K 78643K 104 0 ioctlops 0 0K 4K 78643K 1731 0 iov 0 0K 16K 78643K 98 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1453 91K 91K 78643K 2165 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 17 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 38 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 19 69K 89K 78643K 1326 0 sigio 0 0K 0K 78643K 3 0 proc 70 91K 128K 78643K 799 0 subproc 117 7K 7K 78643K 195 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 103 0 in_multi 99 6K 6K 78643K 208 0 ether_multi 1 0K 0K 78643K 5 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 79 360K 360K 78643K 79 0 exec 0 0K 1K 78643K 504 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 8 62K 64K 78643K 10 0 UVM amap 347 160K 160K 78643K 11224 0 UVM aobj 50 3K 3K 78643K 50 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 14 0 NDP 14 0K 1K 78643K 62 0 temp 139 4694K 5718K 78643K 22913 0 kqueue 12 18K 24K 78643K 101 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> 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 78 0 75 1 0 1 1 0 8 0 rtentry 112 207 0 97 4 0 4 4 0 8 0 unpcb 144 1859 0 1844 19 16 3 6 0 8 2 syncache 296 14 0 14 3 3 0 1 0 8 0 tcpqe 32 349 0 349 3 3 0 1 0 8 0 tcpcb 776 402 0 396 17 15 2 8 0 8 1 arp 120 32 0 14 1 0 1 1 0 8 0 inpcb 368 1412 0 1403 32 25 7 10 0 8 5 nd6 48 50 0 26 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 kcovpl 48 15 0 6 1 0 1 1 0 8 0 ppxss 1256 8 0 6 1 0 1 1 0 8 0 pppxif 1448 2 0 2 1 1 0 1 0 8 0 pfstscr 40 4 0 4 1 1 0 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 6 0 5 2 1 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 1280 45 0 35 2 0 2 2 0 8 0 pfstitem 24 66 0 58 1 0 1 1 0 8 0 pfstkey 128 72 0 64 2 1 1 2 0 8 0 pfstate 384 68 0 60 5 4 1 5 0 8 0 pfrule 1344 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 256 863 0 401 31 2 29 29 0 8 0 art_table 32 864 0 401 4 0 4 4 0 8 0 art_node 16 203 0 102 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semapl 112 34 0 24 1 0 1 1 0 8 0 shmpl 112 47 0 0 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3032 0 1589 91 0 91 91 0 8 0 ffsino 272 3032 0 1589 97 0 97 97 0 8 0 nchpl 144 4908 0 3264 63 0 63 63 0 8 0 uvmvnodes 80 3775 0 0 78 0 78 78 0 8 0 vnodes 216 3775 0 0 210 0 210 210 0 8 0 namei 1024 18502 0 18502 6 5 1 2 0 8 1 percpumem 16 64 0 20 1 0 1 1 0 8 0 vcpupl 2048 5 0 0 1 0 1 1 0 8 0 vmpool 568 5 0 0 1 0 1 1 0 8 0 kstatmem 264 60 0 32 3 0 3 3 0 8 1 scxspl 216 17799 0 17798 14 13 1 8 0 8 0 plimitpl 152 206 0 189 1 0 1 1 0 8 0 sigapl 424 1620 0 1570 9 3 6 7 0 8 0 futexpl 64 10355 0 10355 4 3 1 1 0 8 1 knotepl 120 321 0 0 7 0 7 7 0 8 0 kqueuepl 216 218 0 210 5 4 1 5 0 8 0 pipepl 320 467 0 438 12 9 3 11 0 8 0 fdescpl 496 1602 0 1570 8 3 5 5 0 8 0 filepl 152 11528 0 11271 38 25 13 19 0 8 2 lockfpl 104 1021 0 1019 5 3 2 2 0 8 1 lockfspl 48 262 0 260 1 0 1 1 0 8 0 sessionpl 144 31 0 13 1 0 1 1 0 8 0 pgrppl 48 31 0 13 1 0 1 1 0 8 0 ucredpl 104 2031 0 2019 1 0 1 1 0 8 0 zombiepl 144 1570 0 1570 3 2 1 1 0 8 1 processpl 1072 1620 0 1570 4 0 4 4 0 8 0 procpl 672 4018 0 3944 14 6 8 8 0 8 1 srpgc 96 10 0 10 3 3 0 1 0 8 0 sosppl 168 16 0 16 2 1 1 1 0 8 1 sockpl 488 3353 0 3326 92 80 12 29 0 8 8 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 14 0 0 2 0 2 2 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 46 0 0 6 3 3 6 0 8 0 mcl4k 4096 15 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 351 0 0 43 0 43 43 0 8 0 mtagpl 96 127 0 0 3 0 3 3 0 8 0 mbufpl 256 1155 0 0 64 1 63 63 0 8 0 bufpl 288 6306 0 143 441 0 441 441 0 8 0 anonpl 24 369905 0 351676 140 21 119 128 0 186 1 amapchunkpl 152 31444 0 30563 48 7 41 45 0 158 4 amappl16 200 4554 0 4029 36 5 31 34 0 8 0 amappl15 192 5 0 4 1 0 1 1 0 8 0 amappl14 184 169 0 151 2 1 1 2 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 520 0 515 1 0 1 1 0 8 0 amappl11 160 53 0 38 1 0 1 1 0 8 0 amappl10 152 47 0 33 1 0 1 1 0 8 0 amappl9 144 952 0 951 3 2 1 1 0 8 0 amappl8 136 209 0 144 3 0 3 3 0 8 0 amappl7 128 177 0 151 2 1 1 2 0 8 0 amappl6 120 198 0 186 1 0 1 1 0 8 0 amappl5 112 170 0 160 1 0 1 1 0 8 0 amappl4 104 606 0 571 3 2 1 2 0 8 0 amappl3 96 4184 0 4125 3 1 2 2 0 8 0 amappl2 88 2018 0 1939 3 1 2 3 0 8 0 amappl1 80 38511 0 37693 24 5 19 23 0 8 0 amappl 88 10599 0 10385 8 2 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 49 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1607 0 1570 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1607 0 1570 1 0 1 1 0 8 0 vmmpekpl 168 18324 0 18267 4 1 3 3 0 8 0 vmmpepl 168 157895 0 154880 237 95 142 167 0 357 8 vmsppl 368 1606 0 1570 6 2 4 4 0 8 0 rwobjpl 56 47049 0 41433 86 5 81 81 0 8 0 pdppl 4096 3221 0 3145 194 118 76 81 0 8 0 pvpl 32 779086 0 754937 344 109 235 258 0 265 32 pmappl 248 1606 0 1570 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1024 0 158 25 0 25 25 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82922ff0) 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 _kernel_lock_held() at _kernel_lock_held+0x1c sys/kern/kern_lock.c:76 msleep(ffff80000002c100,ffff80000002c118,20,ffffffff825dd1b6,0) at msleep+0x147 sys/kern/kern_synch.c:234 taskq_next_work(ffff80000002c100,ffff80002120de00) at taskq_next_work+0x6e sys/kern/kern_task.c:402 taskq_thread(ffff80000002c100) at taskq_thread+0x135 sys/kern/kern_task.c:442 end trace frame: 0x0, count: 7 ddb{0}> trace x86_ipi_db(ffffffff82922ff0) 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 _kernel_lock_held() at _kernel_lock_held+0x1c sys/kern/kern_lock.c:76 msleep(ffff80000002c100,ffff80000002c118,20,ffffffff825dd1b6,0) at msleep+0x147 sys/kern/kern_synch.c:234 taskq_next_work(ffff80000002c100,ffff80002120de00) at taskq_next_work+0x6e sys/kern/kern_task.c:402 taskq_thread(ffff80000002c100) at taskq_thread+0x135 sys/kern/kern_task.c:442 end trace frame: 0x0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8265417e) at panic+0x177 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd80780c15e8,20000000,20001000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1651 uvm_fault_unwire(fffffd80780c15e8,20000000,20001000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1611 sys_sysctl(ffff800022d6cd28,ffff800025bcf378,ffff800025bcf3c0) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:255 syscall(ffff800025bcf440) at syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff800025bcf440) at syscall+0x438 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x56e15686840, count: 8 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8265417e) at panic+0x177 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd80780c15e8,20000000,20001000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1651 uvm_fault_unwire(fffffd80780c15e8,20000000,20001000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1611 sys_sysctl(ffff800022d6cd28,ffff800025bcf378,ffff800025bcf3c0) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:255 syscall(ffff800025bcf440) at syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff800025bcf440) at syscall+0x438 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x56e15686840, count: -7