login: panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 72956 36907 60929 0x10 0 0 syz-executor *267899 36907 60929 0x10 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83410462) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd805f511588,400000000000,400000002000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd805f511588,400000000000,400000002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(49,ffff80003c4ea1f8,4,400000000100,ffff80003c4ea228,0,8f6ff29a7905c747,4) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(49,ffff80003c4ea1f8,4,400000000100,ffff80003c4ea228,0,8f6ff29a7905c747,4) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c4ea1f4,5,400000000100,ffff80003c4ea228,0,37,695138a7ac33757a) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000384acd00,ffff80003c4ea360,ffff80003c4ea2b0) at sys_sysctl+0x425 syscall(ffff80003c4ea360) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4ea360) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe9ee1706da0, 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(ffffffff83410462) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd805f511588,400000000000,400000002000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd805f511588,400000000000,400000002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(49,ffff80003c4ea1f8,4,400000000100,ffff80003c4ea228,0,8f6ff29a7905c747,4) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(49,ffff80003c4ea1f8,4,400000000100,ffff80003c4ea228,0,8f6ff29a7905c747,4) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c4ea1f4,5,400000000100,ffff80003c4ea228,0,37,695138a7ac33757a) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000384acd00,ffff80003c4ea360,ffff80003c4ea2b0) at sys_sysctl+0x425 syscall(ffff80003c4ea360) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4ea360) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe9ee1706da0, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c4e9e00 rbx 0xffff800029a9cdc7 rdx 0 rcx 0xffff8000384acd00 rax 0xffff800029a9bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x7cac9e7a485d2a9c r11 0x5b00b362c3f1552c r12 0xffff800029a9cbc8 r13 0 r14 0 r15 0x1 rip 0xffffffff82601ee5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4e9df0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=267899 pid=36907 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000384aca70,0xffff8000384ad750 process=0xffff80003c4dc260 user=0xffff80003c4e5000, vmspace=0xfffffd805f511588 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 36907 72956 8469 60929 7 0x10 syz-executor 36907 241292 8469 60929 3 0x4000090 bell syz-executor *36907 267899 8469 60929 7 0x4000010 syz-executor 36907 451069 8469 60929 2 0x4000010 syz-executor 97225 161222 28314 60928 2 0x10 syz-executor 97225 514906 28314 60928 3 0x4000090 fsleep syz-executor 6820 25426 88173 0 2 0 syz-executor 6820 203662 88173 0 3 0x4000080 kqread syz-executor 6820 442859 88173 0 2 0x4000000 syz-executor 55255 370284 342 0 2 0 syz-executor 55255 197060 342 0 2 0x4000000 syz-executor 87952 413617 99622 0 2 0x2 syz-executor 12081 148081 93812 0 2 0 syz-executor 12081 168751 93812 0 2 0x4000000 syz-executor 12081 363129 93812 0 3 0x4000080 fsleep syz-executor 31926 413528 24229 0 2 0 syz-executor 31926 283912 24229 0 3 0x4000080 fsleep syz-executor 31926 356291 24229 0 2 0x4000000 syz-executor 28596 126948 97212 0 3 0x82 sbwait sshd-session 91635 438352 1 0 3 0x100083 ttyin getty 98730 39412 0 0 3 0x14200 bored sosplice 8469 338738 99622 0 3 0x82 nanoslp syz-executor 69844 69170 99622 0 3 0x82 wait syz-executor 24229 217299 99622 0 3 0x82 nanoslp syz-executor 28314 67588 99622 0 3 0x82 nanoslp syz-executor 93812 382843 99622 0 3 0x82 nanoslp syz-executor 88173 179382 99622 0 3 0x82 nanoslp syz-executor 342 232834 99622 0 3 0x82 nanoslp syz-executor 99622 118757 49681 0 3 0x82 kqread syz-executor 49681 281281 78408 0 3 0x10008a sigsusp ksh 78408 467186 15652 0 3 0x98 kqread sshd-session 15652 120183 97212 0 3 0x92 kqread sshd-session 97212 296590 1 0 3 0x88 kqread sshd 65690 260294 35967 74 3 0x1100092 bpf pflogd 35967 410149 1 0 3 0x80 sbwait pflogd 73421 444691 93358 73 3 0x1100090 kqread syslogd 93358 42134 1 0 3 0x100082 sbwait syslogd 60963 491852 1 0 3 0x100080 kqread resolvd 50592 297202 70463 77 3 0x100092 kqread dhcpleased 18308 478396 70463 77 3 0x100092 kqread dhcpleased 70463 308206 1 0 3 0x80 kqread dhcpleased 23857 343964 0 0 3 0x14200 pause smr 81714 461294 0 0 2 0x14200 zerothread 4284 145146 0 0 3 0x14200 aiodoned aiodoned 69777 201885 0 0 3 0x14200 syncer update 45853 216024 0 0 3 0x14200 cleaner cleaner 22166 36871 0 0 3 0x14200 reaper reaper 89846 422891 0 0 3 0x14200 pgdaemon pagedaemon 98903 388015 0 0 3 0x14200 bored viomb 23293 115942 0 0 3 0x40014200 acpi0 acpi0 49518 450144 0 0 3 0x40014200 idle1 73688 96206 0 0 3 0x14200 bored softnet3 8505 234810 0 0 3 0x14200 bored softnet2 5108 382166 0 0 3 0x14200 bored softnet1 48 339869 0 0 3 0x14200 bored softnet0 31863 162200 0 0 3 0x14200 bored systqmp 29048 170285 0 0 3 0x14200 bored systq 81838 375986 0 0 3 0x14200 tmoslp softclockmp 37124 133052 0 0 3 0x40014200 tmoslp softclock 8642 305974 0 0 3 0x40014200 idle0 1 117718 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 36907 (syz-executor) thread 0xffff8000384acd00 (267899) shared rwlock vmmaplk r = 0 (0xfffffd805f511688) #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 (0xffffffff838e37f0) #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:414 #4 rw_do_enter_read+0x2de sys/kern/kern_rwlock.c:385 #5 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1701 #6 kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] #6 kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 #7 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #8 sys_sysctl+0x425 #9 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff83826c18) #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 Process 55255 (syz-executor) thread 0xffff80002a35ace8 (197060) exclusive rwlock futex r = 0 (0xffffffff8379f948) #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 sys_futex+0x69 sys/kern/sys_futex.c:98 #3 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 Process 31926 (syz-executor) thread 0xffff80002a364f88 (356291) exclusive rwlock vmmaplk r = 0 (0xfffffd805f511850) #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 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5250 #3 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1858 #4 uvm_fault_check+0x987 uvmfault_amapcopy sys/uvm/uvm_fault.c:235 [inline] #4 uvm_fault_check+0x987 sys/uvm/uvm_fault.c:774 #5 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10215 11164K 11420K 166960K 12419 0 pcb 17 13K 14K 166960K 156 0 rtable 175 5K 7K 166960K 551 0 pf 38 18K 21K 166960K 87 0 ifaddr 38 6K 8K 166960K 79 0 ifgroup 57 2K 2K 166960K 91 0 sysctl 4 1K 1K 166960K 4 0 counters 66 36K 37K 166960K 94 0 ioctlops 0 0K 5K 166960K 1566 0 iov 0 0K 18K 166960K 32 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1453 91K 92K 166960K 2012 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 19 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 770 0 sigio 0 0K 0K 166960K 8 0 proc 72 91K 140K 166960K 595 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 149 0 in_multi 79 5K 7K 166960K 189 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 537 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 240 77K 87K 166960K 9004 0 UVM aobj 16 4K 4K 166960K 19 0 pinsyscall 45 90K 104K 166960K 1893 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 42 0 NDP 13 0K 1K 166960K 54 0 temp 65 8637K 8758K 166960K 19666 0 kqueue 13 20K 28K 166960K 141 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 120 132 0 128 1 0 1 1 0 8 0 rtentry 168 194 0 116 7 1 6 6 0 8 0 unpcb 144 512 0 494 6 2 4 4 0 8 3 syncache 336 5 0 5 3 2 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 193 0 187 6 4 2 5 0 8 1 arp 120 23 0 10 1 0 1 1 0 8 0 inpcb 376 717 0 705 12 6 6 6 0 8 4 nd6 136 48 0 27 2 0 2 2 0 8 0 pkpcb 40 5 0 5 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1168 9 0 8 2 1 1 1 0 8 0 pppxif 1472 5 0 5 1 1 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 3 0 1 1 0 1 1 0 482 0 pffrnode 88 3 0 1 1 0 1 1 0 8 0 pffrent 40 5 0 3 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 1288 4 0 0 1 0 1 1 0 8 0 pfstitem 24 94 0 27 1 0 1 1 0 8 0 pfstkey 128 96 0 29 3 0 3 3 0 8 0 pfstate 376 94 0 28 7 0 7 7 0 8 0 pfrule 1344 26 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 912 0 534 31 2 29 31 0 8 4 art_table 32 913 0 534 5 0 5 5 0 8 0 art_node 16 192 0 123 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 19 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 17 0 7 1 0 1 1 0 8 0 shmpl 112 16 0 3 1 0 1 1 0 8 0 dirhash 1024 32 0 15 3 0 3 3 0 8 0 dino2pl 256 2744 0 1243 95 0 95 95 0 8 0 ffsino 280 2744 0 1243 109 0 109 109 0 8 0 nchpl 144 3801 0 2108 63 0 63 63 0 8 0 uvmvnodes 80 3284 0 0 68 0 68 68 0 8 0 vnodes 216 3284 0 0 183 0 183 183 0 8 0 namei 1024 12907 0 12907 1 0 1 1 0 8 1 percpumem 16 61 0 14 1 0 1 1 0 8 0 kstatmem 264 44 0 18 2 0 2 2 0 8 0 scsiplug 72 3 0 3 2 1 1 1 0 8 1 scxspl 216 11992 0 11992 7 6 1 6 1 8 1 plimitpl 152 121 0 104 1 0 1 1 0 8 0 sigapl 424 1080 0 1029 7 1 6 7 0 8 0 futexpl 64 9408 0 9404 1 0 1 1 0 8 0 knotepl 120 330 0 0 10 0 10 10 0 8 0 kqueuepl 216 188 0 178 1 0 1 1 0 8 0 pipepl 328 160 0 132 3 0 3 3 0 8 0 fdescpl 504 1061 0 1028 7 2 5 6 0 8 0 filepl 152 5506 0 5278 18 3 15 15 0 8 5 lockfpl 104 207 0 205 1 0 1 1 0 8 0 lockfspl 48 86 0 84 1 0 1 1 0 8 0 sessionpl 144 26 0 16 1 0 1 1 0 8 0 pgrppl 48 39 0 21 1 0 1 1 0 8 0 ucredpl 104 761 0 746 1 0 1 1 0 8 0 zombiepl 144 1329 0 1328 1 0 1 1 0 8 0 processpl 1168 1081 0 1029 5 1 4 5 0 8 0 procpl 656 2183 0 2120 7 0 7 7 0 8 1 srpgc 96 4 0 4 2 1 1 1 0 8 1 sosppl 168 5 0 5 2 1 1 1 0 8 1 sockpl 688 1380 0 1346 17 6 11 14 0 8 7 mcl64k 65536 14 0 0 2 0 2 2 0 8 0 mcl16k 16384 10 0 0 2 0 2 2 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 111 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 25 0 0 4 0 4 4 0 8 0 mtagpl 96 97 0 0 3 0 3 3 0 8 0 mbufpl 256 337 0 0 21 0 21 21 0 8 0 bufpl 280 4671 0 134 325 0 325 325 0 8 0 anonpl 24 163710 0 159869 59 5 54 54 0 184 28 amapchunkpl 152 29107 0 28581 32 4 28 28 0 158 6 amappl16 200 3100 0 3068 21 11 10 16 0 8 8 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 120 0 107 1 0 1 1 0 8 0 amappl13 176 4 0 4 2 2 0 1 0 8 0 amappl12 168 1719 0 1687 4 2 2 3 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 249 0 249 1 1 0 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 113 0 99 1 0 1 1 0 8 0 amappl6 120 186 0 182 1 0 1 1 0 8 0 amappl5 112 154 0 144 1 0 1 1 0 8 0 amappl4 104 333 0 313 1 0 1 1 0 8 0 amappl3 96 5680 0 5563 5 1 4 4 0 8 0 amappl2 88 667 0 598 2 0 2 2 0 8 0 amappl1 80 10257 0 9592 15 1 14 14 0 8 0 amappl 88 8573 0 8397 6 1 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 8 0 8 2 2 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 18 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1060 0 1028 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1060 0 1028 1 0 1 1 0 8 0 vmmpekpl 168 10078 0 10036 3 0 3 3 0 8 0 vmmpepl 168 70302 0 68279 100 5 95 95 0 357 4 vmsppl 456 1059 0 1028 7 2 5 5 0 8 0 rwobjpl 64 24431 0 20085 72 1 71 71 0 8 0 pdppl 4096 2127 0 2056 109 36 73 87 0 8 2 pvpl 32 16822 0 0 138 2 136 137 0 265 0 pmappl 248 1059 0 1028 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 311 0 50 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83864ff0) 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 end of kernel end trace frame: 0x73df85af0ec0, count: 12 ddb{0}> trace x86_ipi_db(ffffffff83864ff0) 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 end of kernel end trace frame: 0x73df85af0ec0, count: -3 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(ffffffff83410462) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd805f511588,400000000000,400000002000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd805f511588,400000000000,400000002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(49,ffff80003c4ea1f8,4,400000000100,ffff80003c4ea228,0,8f6ff29a7905c747,4) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(49,ffff80003c4ea1f8,4,400000000100,ffff80003c4ea228,0,8f6ff29a7905c747,4) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c4ea1f4,5,400000000100,ffff80003c4ea228,0,37,695138a7ac33757a) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000384acd00,ffff80003c4ea360,ffff80003c4ea2b0) at sys_sysctl+0x425 syscall(ffff80003c4ea360) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4ea360) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe9ee1706da0, count: 6 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83410462) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd805f511588,400000000000,400000002000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd805f511588,400000000000,400000002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(49,ffff80003c4ea1f8,4,400000000100,ffff80003c4ea228,0,8f6ff29a7905c747,4) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(49,ffff80003c4ea1f8,4,400000000100,ffff80003c4ea228,0,8f6ff29a7905c747,4) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c4ea1f4,5,400000000100,ffff80003c4ea228,0,37,695138a7ac33757a) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000384acd00,ffff80003c4ea360,ffff80003c4ea2b0) at sys_sysctl+0x425 syscall(ffff80003c4ea360) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4ea360) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe9ee1706da0, count: -9