panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 196661 80712 0 0 0 0 syz-executor *126553 882 0 0x1000 0x4080000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834121a7) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bebcac8,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806bebcac8,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80003c5acc98,1,400000000100,ffff80003c5accc8,0,7c91ba59b7daffe3,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(4e,ffff80003c5acc98,1,400000000100,ffff80003c5accc8,0,7c91ba59b7daffe3,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c5acc94,2,400000000100,ffff80003c5accc8,0,27,8a0b8ec4930e39cf) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000344b6548,ffff80003c5ace00,ffff80003c5acd50) at sys_sysctl+0x425 syscall(ffff80003c5ace00) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5ace00) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc8737db57f0, count: 6 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+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834121a7) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bebcac8,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806bebcac8,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80003c5acc98,1,400000000100,ffff80003c5accc8,0,7c91ba59b7daffe3,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(4e,ffff80003c5acc98,1,400000000100,ffff80003c5accc8,0,7c91ba59b7daffe3,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c5acc94,2,400000000100,ffff80003c5accc8,0,27,8a0b8ec4930e39cf) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000344b6548,ffff80003c5ace00,ffff80003c5acd50) at sys_sysctl+0x425 syscall(ffff80003c5ace00) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5ace00) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc8737db57f0, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c5ac8a0 rbx 0xffff800029a9cdc7 rdx 0xffff80000144da80 rcx 0xffff8000344b6548 rax 0xffff800029a9bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x3cf475a81d138b1c r11 0x9ab0fa0eb784c560 r12 0xffff800029a9cbc8 r13 0 r14 0 r15 0x1 rip 0xffffffff81ca8e35 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c5ac890 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=126553 pid=882 tcnt=4 stat=onproc flags process=1000 proc=4080000 runpri=32, usrpri=64, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000344b6028 scnt=3 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000344b6028,0xffff8000ffff47f8 process=0xffff8000ffff32b0 user=0xffff80003c5a7000, vmspace=0xfffffd806bebcac8 estcpu=14, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 66670 490227 15059 0 2 0 syz-executor 80712 196661 92862 0 7 0 syz-executor 80712 129518 92862 0 2 0x4000000 syz-executor 98864 158502 66941 60929 2 0x10 syz-executor 98864 333054 66941 60929 3 0x4000090 fsleep syz-executor 17507 393465 67473 0 2 0 syz-executor 17507 133937 67473 0 3 0x4000080 fsleep syz-executor 28265 369323 49296 0 3 0x80 nanoslp syz-executor 28265 37642 49296 0 3 0x4000080 sysctllk syz-executor 28265 38070 49296 0 3 0x4000080 netcon syz-executor 28265 425626 49296 0 3 0x4000080 fsleep syz-executor 49336 121725 30442 0 3 0x80 nanoslp syz-executor 49336 236474 30442 0 3 0x4000080 sysctllk syz-executor 44317 428971 5811 0 3 0x80 nanoslp syz-executor 44317 348291 5811 0 3 0x4000080 sysctllk syz-executor 44317 415118 5811 0 3 0x4000080 fsleep syz-executor 882 47417 26090 0 3 0x3000 suspend syz-executor * 882 126553 26090 0 7 0x4081000 syz-executor 882 149027 26090 0 2 0x4081000 syz-executor 882 44403 26090 0 3 0x4081000 inode syz-executor 65358 39379 0 0 3 0x14280 nfsidl nfsio 89588 461377 0 0 3 0x14280 nfsidl nfsio 51194 516135 0 0 3 0x14280 nfsidl nfsio 57568 191047 0 0 3 0x14280 nfsidl nfsio 23206 137011 0 0 3 0x14280 nfsidl nfsio 42603 377405 0 0 3 0x14280 nfsidl nfsio 69969 228163 0 0 3 0x14280 nfsidl nfsio 24280 296017 0 0 3 0x14280 nfsidl nfsio 72367 208821 0 0 3 0x14280 nfsidl nfsio 63583 337610 0 0 3 0x14280 nfsidl nfsio 8524 88114 0 0 3 0x14280 nfsidl nfsio 60099 322448 0 0 3 0x14280 nfsidl nfsio 12478 210518 0 0 3 0x14280 nfsidl nfsio 63384 295769 0 0 3 0x14280 nfsidl nfsio 38835 77828 0 0 3 0x14280 nfsidl nfsio 5648 373525 0 0 3 0x14280 nfsidl nfsio 95275 453317 0 0 3 0x14280 nfsidl nfsio 7534 190559 0 0 3 0x14280 nfsidl nfsio 19024 145292 0 0 3 0x14280 nfsidl nfsio 91333 347903 0 0 3 0x14280 nfsidl nfsio 30442 496939 59561 0 3 0x82 nanoslp syz-executor 15059 492396 59561 0 3 0x82 nanoslp syz-executor 66941 52250 59561 0 3 0x82 nanoslp syz-executor 26090 456474 59561 0 3 0x82 nanoslp syz-executor 49296 169042 59561 0 3 0x82 nanoslp syz-executor 5811 355148 59561 0 3 0x82 nanoslp syz-executor 67473 425023 59561 0 3 0x82 nanoslp syz-executor 92862 518313 59561 0 3 0x82 nanoslp syz-executor 59561 412514 61482 0 3 0x82 kqread syz-executor 61482 422818 64846 0 3 0x10008a sigsusp ksh 64846 441165 5273 0 3 0x98 kqread sshd-session 5273 428337 91463 0 3 0x92 kqread sshd-session 22493 413751 1 0 3 0x100083 ttyin getty 91463 323197 1 0 3 0x88 kqread sshd 97895 71591 46565 74 3 0x1100092 bpf pflogd 46565 151658 1 0 3 0x80 sbwait pflogd 54380 115746 44809 73 3 0x1100090 kqread syslogd 44809 501858 1 0 3 0x100082 sbwait syslogd 71307 341758 1 0 3 0x100080 kqread resolvd 50002 323874 77806 77 3 0x100092 kqread dhcpleased 75073 474483 77806 77 3 0x100092 kqread dhcpleased 77806 376443 1 0 3 0x80 kqread dhcpleased 3038 411043 0 0 3 0x14200 bored smr 23808 381010 0 0 2 0x14200 zerothread 44069 508823 0 0 3 0x14200 aiodoned aiodoned 30858 41776 0 0 3 0x14200 syncer update 76075 359269 0 0 3 0x14200 cleaner cleaner 49551 331390 0 0 3 0x14200 reaper reaper 58209 358021 0 0 3 0x14200 pgdaemon pagedaemon 24227 149618 0 0 3 0x14200 bored viomb 23221 490691 0 0 3 0x40014200 acpi0 acpi0 93691 291320 0 0 3 0x40014200 idle1 21243 121622 0 0 3 0x14200 bored softnet3 2159 426220 0 0 3 0x14200 bored softnet2 44753 308090 0 0 3 0x14200 bored softnet1 87554 54102 0 0 3 0x14200 bored softnet0 30588 190683 0 0 3 0x14200 bored systqmp 91103 260689 0 0 3 0x14200 bored systq 28198 178479 0 0 3 0x14200 tmoslp softclockmp 94737 502380 0 0 3 0x40014200 tmoslp softclock 88316 402827 0 0 3 0x40014200 idle0 1 20615 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 882 (syz-executor) thread 0xffff8000344b6548 (126553) shared rwlock vmmaplk r = 0 (0xfffffd806bebcbc8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1701 #3 kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] #3 kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 #4 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #5 sys_sysctl+0x425 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839a64c0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x24f sys/kern/kern_synch.c:412 #4 rw_do_enter_write+0x1de sys/kern/kern_rwlock.c:292 #5 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #6 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #7 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #8 vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 #9 sysctl_proc_cwd+0x2b2 sys/kern/kern_sysctl.c:2352 #10 kern_sysctl_dirs+0x2ef sys/kern/kern_sysctl.c:430 #11 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #12 sys_sysctl+0x425 #13 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff837a71a8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:187 #3 kern_sysctl_dirs+0x266 sys/kern/kern_sysctl.c:428 #4 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #5 sys_sysctl+0x425 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10205 11097K 11346K 166960K 11366 0 pcb 17 12K 12K 166960K 28 0 rtable 238 7K 8K 166960K 364 0 pf 37 18K 22K 166960K 63 0 ifaddr 44 7K 7K 166960K 49 0 ifgroup 60 2K 3K 166960K 69 0 sysctl 1 1K 1K 166960K 1 0 counters 66 36K 37K 166960K 72 0 ioctlops 0 0K 4K 166960K 1559 0 iov 0 0K 6K 166960K 68 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1346 85K 85K 166960K 1414 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 4 0K 0K 166960K 4 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 93K 166960K 208 0 sigio 0 0K 0K 166960K 3 0 proc 72 91K 127K 166960K 540 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 19 0 in_multi 100 7K 7K 166960K 105 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 433 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 232 72K 73K 166960K 3479 0 UVM aobj 4 2K 2K 166960K 5 0 pinsyscall 43 86K 105K 166960K 1291 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 6 0 NDP 13 0K 2K 166960K 31 0 temp 40 8682K 8747K 166960K 4239 0 kqueue 16 26K 26K 166960K 32 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 37 0 34 1 0 1 1 0 8 0 rtentry 160 113 0 2 5 0 5 5 0 8 0 unpcb 144 84 0 65 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 31 0 25 1 0 1 1 0 8 0 arp 120 19 0 0 1 0 1 1 0 8 0 inpcb 376 122 0 112 2 0 2 2 0 8 0 nd6 136 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 1 0 1 1 0 1 1 0 8 1 pppxif 1480 1 0 1 1 0 1 1 0 8 1 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 3 0 3 1 0 1 1 0 8 1 pfanchor 1288 2 0 2 1 0 1 1 0 8 1 pfstitem 24 19 0 0 1 0 1 1 0 8 0 pfstkey 128 19 0 0 1 0 1 1 0 8 0 pfstate 376 19 0 0 2 0 2 2 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 458 0 6 29 0 29 29 0 8 0 art_table 32 459 0 6 4 0 4 4 0 8 0 art_node 16 112 0 12 1 0 1 1 0 8 0 semapl 112 2 0 0 1 0 1 1 0 8 0 shmpl 112 2 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1706 0 194 95 0 95 95 0 8 0 ffsino 280 1706 0 194 109 0 109 109 0 8 0 nchpl 144 1997 0 304 63 0 63 63 0 8 0 uvmvnodes 80 1821 0 0 38 0 38 38 0 8 0 vnodes 216 1821 0 0 102 0 102 102 0 8 0 namei 1024 6839 0 6837 2 0 2 2 0 8 1 percpumem 16 50 0 3 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 1 1 0 1 1 0 8 1 kstatmem 264 30 0 4 2 0 2 2 0 8 0 scxspl 216 6273 0 6273 3 1 2 2 1 8 2 plimitpl 152 38 0 19 1 0 1 1 0 8 0 sigapl 424 527 0 457 8 0 8 8 0 8 0 futexpl 64 1199 0 1195 1 0 1 1 0 8 0 knotepl 120 315 0 0 10 0 10 10 0 8 0 kqueuepl 216 33 0 20 1 0 1 1 0 8 0 pipepl 328 113 0 86 3 0 3 3 0 8 0 fdescpl 504 489 0 457 5 0 5 5 0 8 0 filepl 152 2151 0 1912 12 0 12 12 0 8 2 lockfpl 104 27 0 23 1 0 1 1 0 8 0 lockfspl 48 14 0 11 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 96 0 79 1 0 1 1 0 8 0 ucredpl 104 170 0 156 1 0 1 1 0 8 0 zombiepl 144 458 0 457 1 0 1 1 0 8 0 processpl 1176 527 0 457 6 0 6 6 0 8 0 procpl 656 671 0 589 8 0 8 8 0 8 0 sockpl 688 245 0 213 5 0 5 5 0 8 1 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 0 15 15 0 8 0 mcl2k 2048 28 0 0 4 0 4 4 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 252 0 0 16 0 16 16 0 8 0 bufpl 280 2379 0 127 161 0 161 161 0 8 0 anonpl 24 105161 0 101772 46 0 46 46 0 184 22 amapchunkpl 152 10638 0 10129 22 0 22 22 0 158 0 amappl16 200 2071 0 2045 14 4 10 14 0 8 8 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 113 0 100 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 0 1 1 0 8 1 amappl12 168 1128 0 1097 4 1 3 3 0 8 1 amappl11 160 57 0 43 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 247 0 246 1 0 1 1 0 8 0 amappl8 136 21 0 19 1 0 1 1 0 8 0 amappl7 128 141 0 129 1 0 1 1 0 8 0 amappl6 120 182 0 179 1 0 1 1 0 8 0 amappl5 112 120 0 111 1 0 1 1 0 8 0 amappl4 104 316 0 297 1 0 1 1 0 8 0 amappl3 96 1774 0 1660 4 0 4 4 0 8 0 amappl2 88 638 0 577 2 0 2 2 0 8 0 amappl1 80 8189 0 7621 14 0 14 14 0 8 0 amappl 88 3109 0 2933 5 0 5 5 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 4 0 1 1 0 1 1 0 8 0 uaddrrnd 24 489 0 457 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 489 0 457 1 0 1 1 0 8 0 vmmpekpl 168 5809 0 5769 2 0 2 2 0 8 0 vmmpepl 168 36930 0 35025 93 0 93 93 0 357 5 vmsppl 456 488 0 457 5 0 5 5 0 8 1 rwobjpl 64 15465 0 12708 46 0 46 46 0 8 0 pdppl 4096 986 0 914 100 26 74 88 0 8 2 pvpl 32 13710 0 0 111 0 111 111 0 265 0 pmappl 248 488 0 457 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 280 0 28 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837f0ff0) 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(ffffffff839a62b8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839a62b8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x754c523e9ce0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff837f0ff0) 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(ffffffff839a62b8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839a62b8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x754c523e9ce0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834121a7) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bebcac8,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806bebcac8,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80003c5acc98,1,400000000100,ffff80003c5accc8,0,7c91ba59b7daffe3,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(4e,ffff80003c5acc98,1,400000000100,ffff80003c5accc8,0,7c91ba59b7daffe3,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c5acc94,2,400000000100,ffff80003c5accc8,0,27,8a0b8ec4930e39cf) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000344b6548,ffff80003c5ace00,ffff80003c5acd50) at sys_sysctl+0x425 syscall(ffff80003c5ace00) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5ace00) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc8737db57f0, count: 6 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834121a7) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bebcac8,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806bebcac8,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80003c5acc98,1,400000000100,ffff80003c5accc8,0,7c91ba59b7daffe3,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(4e,ffff80003c5acc98,1,400000000100,ffff80003c5accc8,0,7c91ba59b7daffe3,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c5acc94,2,400000000100,ffff80003c5accc8,0,27,8a0b8ec4930e39cf) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000344b6548,ffff80003c5ace00,ffff80003c5acd50) at sys_sysctl+0x425 syscall(ffff80003c5ace00) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5ace00) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc8737db57f0, count: -9