panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 79159 27107 32767 0x10 0x4000000 1K syz-executor.7 287168 3927 32767 0x10 0 0 syz-executor.2 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8285f2ad) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806f12b3a8,20002000,20003000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806f12b3a8,20002000,20003000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff800021282550,ffff80002c5c5610,ffff80002c5c5660) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002c5c56e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002c5c56e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2bacf4af5f0, 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+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8285f2ad) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806f12b3a8,20002000,20003000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806f12b3a8,20002000,20003000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff800021282550,ffff80002c5c5610,ffff80002c5c5660) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002c5c56e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002c5c56e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2bacf4af5f0, count: -7 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002c5c53e0 rbx 0xffff800020d49ba7 rdx 0 rcx 0xffff800021282550 rax 0xffff800020d48ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x51f73c19d3215218 r11 0xd9d1c435fa51f787 r12 0xffff800020d499a8 r13 0 r14 0 r15 0x1 rip 0xffffffff81bdb97c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002c5c53d0 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.7) tid=79159 pid=27107 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=86, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff800021282000,0xffff800021282ab0 process=0xffff800021294018 user=0xffff80002c5c0000, vmspace=0xfffffd806f12b3a8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 27107 369456 65302 32767 2 0x10 syz-executor.7 27107 234371 65302 32767 3 0x4000090 fsleep syz-executor.7 *27107 79159 65302 32767 7 0x4000010 syz-executor.7 27107 344363 65302 32767 2 0x4000010 syz-executor.7 92413 203678 86688 32767 2 0x10 syz-executor.3 70081 399 58965 32767 2 0x10 syz-executor.5 70081 447333 58965 32767 2 0x4000010 syz-executor.5 45356 282362 51974 32767 2 0x10 syz-executor.4 78743 68755 90073 32767 2 0x10 syz-executor.6 78743 142247 90073 32767 2 0x4000010 syz-executor.6 78743 380374 90073 32767 3 0x4000090 fsleep syz-executor.6 29308 185484 76320 32767 2 0x10 syz-executor.1 29308 301313 76320 32767 3 0x4000090 lockf syz-executor.1 58965 301497 64584 32767 3 0x90 nanoslp syz-executor.5 64584 28135 28478 0 3 0x82 wait syz-executor.5 90073 226303 4665 32767 3 0x90 nanoslp syz-executor.6 4665 338553 28478 0 3 0x82 wait syz-executor.6 65302 399954 73910 32767 3 0x90 nanoslp syz-executor.7 73910 349281 28478 0 3 0x82 wait syz-executor.7 50882 104679 34008 32767 2 0x10 syz-executor.0 34008 513151 28478 0 3 0x82 wait syz-executor.0 76320 498474 380 32767 3 0x90 nanoslp syz-executor.1 380 293325 28478 0 3 0x82 wait syz-executor.1 51974 186473 33595 32767 2 0x10 syz-executor.4 33595 184485 28478 0 3 0x82 wait syz-executor.4 86688 5581 28594 32767 3 0x90 nanoslp syz-executor.3 28594 135851 28478 0 3 0x82 wait syz-executor.3 3927 287168 40110 32767 7 0x10 syz-executor.2 40110 23523 28478 0 3 0x82 wait syz-executor.2 80688 51225 0 0 3 0x14200 bored sosplice 28478 76602 65053 0 3 0x2000082 wait syz-fuzzer 28478 1248 65053 0 3 0x6000082 nanoslp syz-fuzzer 28478 219344 65053 0 3 0x6000082 thrsleep syz-fuzzer 28478 410095 65053 0 3 0x6000082 thrsleep syz-fuzzer 28478 248954 65053 0 3 0x6000082 thrsleep syz-fuzzer 28478 5308 65053 0 3 0x6000082 wait syz-fuzzer 28478 379472 65053 0 3 0x6000082 wait syz-fuzzer 28478 212074 65053 0 3 0x6000082 wait syz-fuzzer 28478 51380 65053 0 3 0x6000082 thrsleep syz-fuzzer 28478 235177 65053 0 3 0x6000082 thrsleep syz-fuzzer 28478 335079 65053 0 3 0x6000082 kqread syz-fuzzer 28478 3315 65053 0 3 0x6000082 wait syz-fuzzer 28478 13534 65053 0 3 0x6000082 thrsleep syz-fuzzer 28478 332899 65053 0 3 0x6000082 wait syz-fuzzer 28478 465076 65053 0 3 0x6000082 wait syz-fuzzer 28478 243019 65053 0 3 0x6000082 wait syz-fuzzer 65053 228652 38028 0 3 0x10008a sigsusp ksh 38028 191576 98585 0 3 0x9a kqread sshd 51431 9127 1 0 3 0x100083 ttyin getty 98585 242305 1 0 3 0x88 kqread sshd 22118 55091 59515 73 3 0x1100090 kqread syslogd 59515 412191 1 0 3 0x100082 netio syslogd 82079 400101 1 0 3 0x100080 kqread resolvd 8140 41704 30897 77 3 0x100092 kqread dhcpleased 90403 126989 30897 77 3 0x100092 kqread dhcpleased 30897 19272 1 0 3 0x80 kqread dhcpleased 49660 16004 0 0 3 0x14200 bored smr 36649 479928 0 0 2 0x14200 zerothread 56410 230292 0 0 3 0x14200 aiodoned aiodoned 41692 381631 0 0 3 0x14200 syncer update 45638 245235 0 0 3 0x14200 cleaner cleaner 63709 397823 0 0 3 0x14200 reaper reaper 82819 221790 0 0 3 0x14200 pgdaemon pagedaemon 43984 516495 0 0 3 0x14200 bored viomb 68964 505812 0 0 3 0x40014200 acpi0 acpi0 5461 37982 0 0 3 0x40014200 idle1 77833 308869 0 0 3 0x14200 bored softnet3 49964 51892 0 0 3 0x14200 bored softnet2 47685 259900 0 0 3 0x14200 bored softnet1 69477 441567 0 0 3 0x14200 bored softnet0 88350 471418 0 0 3 0x14200 bored systqmp 33837 58676 0 0 3 0x14200 bored systq 573 478556 0 0 3 0x14200 tmoslp softclockmp 51766 36226 0 0 3 0x40014200 tmoslp softclock 68646 201945 0 0 3 0x40014200 idle0 1 364757 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 27107 (syz-executor.7) thread 0xffff800021282550 (79159) shared rwlock vmmaplk r = 0 (0xfffffd806f12b4a0) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 uvm_fault_unwire+0x35 sys/uvm/uvm_fault.c:1622 #3 sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 #4 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #4 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d1e7e0) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x46d sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 rw_enter+0x341 sys/kern/kern_rwlock.c:285 #5 uvm_fault_unwire+0x35 sys/uvm/uvm_fault.c:1622 #6 sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 #7 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #7 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #8 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff82bcdfb0) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 sys_sysctl+0x1c3 sys/kern/kern_sysctl.c:238 #3 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #3 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #4 Xsyscall+0x128 Process 3927 (syz-executor.2) thread 0xffff80002125f2b8 (287168) exclusive rwlock amaplk r = 0 (0xfffffd807de3db00) #0 witness_lock+0x447 #1 uvm_fault_check+0x41a sys/uvm/uvm_fault.c:782 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd8069e03dc8) #0 witness_lock+0x447 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10222 6414K 6420K 78643K 11509 0 pcb 13 12K 14K 78643K 17 0 rtable 246 7K 7K 78643K 5407 0 pf 29 8K 8K 78643K 167 0 ifaddr 44 16K 16K 78643K 328 0 ifgroup 50 2K 2K 78643K 326 0 sysctl 4 1K 5K 78643K 7 0 counters 60 35K 35K 78643K 198 0 ioctlops 0 0K 2K 78643K 493 0 iov 0 0K 32K 78643K 5440 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1279 80K 80K 78643K 11642 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 13K 78643K 709 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 8000 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 24 89K 117K 78643K 50005 0 sigio 0 0K 0K 78643K 1209 0 proc 56 78K 103K 78643K 4467 0 subproc 104 6K 6K 78643K 1001 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 4529 0 in_multi 99 7K 7K 78643K 1132 0 ether_multi 1 0K 0K 78643K 54 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 271 1208K 1208K 78643K 271 0 exec 0 0K 1K 78643K 7640 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 527 96K 114K 78643K 495681 0 UVM aobj 131 4K 4K 78643K 136 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 1050 0 NDP 11 0K 2K 78643K 234 0 temp 74 5920K 6048K 78643K 122426 0 kqueue 17 22K 32K 78643K 5170 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 4407 0 4404 53 52 1 5 0 8 0 rtentry 112 958 0 842 4 0 4 4 0 8 0 unpcb 144 71450 0 71435 390 386 4 13 0 8 3 syncache 312 673 0 673 92 91 1 1 0 8 1 tcpqe 32 803 0 803 85 84 1 1 0 8 1 tcpcb 808 19214 0 19187 404 394 10 18 0 8 3 arp 120 163 0 144 1 0 1 1 0 8 0 ipq 40 80 0 79 25 24 1 1 0 8 0 ipqe 40 584 0 580 25 24 1 1 0 8 0 inpcb 368 38511 0 38474 491 481 10 21 0 8 3 ip6q 72 2 0 2 1 1 0 1 0 8 0 ip6af 40 4 0 4 1 1 0 1 0 8 0 nd6 136 312 0 283 5 3 2 2 0 8 0 kcovpl 48 77 0 69 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 3834 0 3362 45 14 31 31 0 8 0 art_table 32 3835 0 3362 5 1 4 5 0 8 0 art_node 16 957 0 851 1 0 1 1 0 8 0 semapl 112 7998 0 7988 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 69158 0 67646 95 0 95 95 0 8 0 ffsino 272 69158 0 67646 102 0 102 102 0 8 0 nchpl 144 135164 0 133522 63 0 63 63 0 8 0 uvmvnodes 80 6652 0 0 136 0 136 136 0 8 0 vnodes 216 6652 0 0 370 0 370 370 0 8 0 namei 1024 429529 0 429529 14 13 1 2 0 8 1 percpumem 16 112 0 69 1 0 1 1 0 8 0 kstatmem 264 160 0 138 2 0 2 2 0 8 0 scxspl 216 432898 0 432898 162 159 3 8 1 8 3 plimitpl 152 6893 0 6870 69 68 1 2 0 8 0 sigapl 424 50162 0 50108 11 4 7 7 0 8 0 futexpl 64 435683 0 435681 13 12 1 1 0 8 0 knotepl 120 2450 0 0 23 6 17 18 0 8 0 kqueuepl 216 16440 0 16428 247 246 1 8 0 8 0 pipepl 320 12414 0 12385 326 323 3 11 0 8 0 fdescpl 496 50143 0 50108 7 2 5 6 0 8 0 filepl 152 346036 0 345790 539 526 13 25 0 8 2 lockfpl 104 11078 0 11074 7 6 1 2 0 8 0 lockfspl 48 3439 0 3436 1 0 1 1 0 8 0 sessionpl 144 92 0 76 1 0 1 1 0 8 0 pgrppl 48 415 0 399 1 0 1 1 0 8 0 ucredpl 104 53289 0 53271 1 0 1 1 0 8 0 zombiepl 144 50108 0 50108 1 0 1 1 0 8 1 processpl 1072 50162 0 50108 5 1 4 5 0 8 0 procpl 680 141085 0 141009 75 67 8 9 0 8 1 sosppl 168 820 0 816 51 50 1 1 0 8 0 sockpl 488 133864 0 133815 1499 1483 16 49 0 8 5 mcl64k 65536 89 0 0 6 3 3 3 0 8 0 mcl16k 16384 49 0 0 3 0 3 3 0 8 0 mcl12k 12288 73 0 0 3 1 2 2 0 8 0 mcl9k 9216 33 0 0 3 1 2 2 0 8 0 mcl8k 8192 81 0 0 3 0 3 3 0 8 0 mcl4k 4096 193 0 0 8 5 3 6 0 8 0 mcl2k2 2112 60 0 0 4 1 3 4 0 8 0 mcl2k 2048 1101 0 0 51 36 15 47 0 8 0 mtagpl 96 18 0 0 1 0 1 1 0 8 0 mbufpl 256 13133 0 0 813 0 813 813 0 8 0 bufpl 288 97270 0 90617 476 0 476 476 0 8 0 anonpl 24 4963805 0 4952176 251 151 100 114 0 186 0 amapchunkpl 152 1582271 0 1581425 401 364 37 51 0 158 0 amappl16 200 110168 0 109884 610 592 18 39 0 8 0 amappl15 192 17 0 17 5 5 0 1 0 8 0 amappl14 184 380 0 364 2 1 1 2 0 8 0 amappl13 176 53 0 52 2 1 1 1 0 8 0 amappl12 168 51859 0 51816 3 0 3 3 0 8 0 amappl11 160 57 0 47 1 0 1 1 0 8 0 amappl10 152 105 0 88 1 0 1 1 0 8 0 amappl9 144 601 0 600 1 0 1 1 0 8 0 amappl8 136 2591 0 2266 12 0 12 12 0 8 0 amappl7 128 545 0 519 2 0 2 2 0 8 0 amappl6 120 1773 0 1749 1 0 1 1 0 8 0 amappl5 112 1140 0 1132 1 0 1 1 0 8 0 amappl4 104 2041 0 2005 5 3 2 2 0 8 0 amappl3 96 304445 0 304351 61 58 3 5 0 8 0 amappl2 88 53380 0 53291 11 8 3 3 0 8 0 amappl1 80 184999 0 184471 22 9 13 22 0 8 0 amappl 88 491325 0 491074 7 0 7 7 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 50143 0 50108 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 50143 0 50108 1 0 1 1 0 8 0 vmmpekpl 168 391364 0 391298 4 0 4 4 0 8 0 vmmpepl 168 2911015 0 2908367 479 341 138 172 0 357 0 vmsppl 464 50142 0 50108 7 2 5 6 0 8 0 rwobjpl 56 711282 0 702917 141 19 122 122 0 8 0 pdppl 4096 100294 0 100216 1523 1441 82 92 0 8 4 pvpl 32 14146761 0 14128690 1017 836 181 362 0 265 0 pmappl 248 50142 0 50108 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 4208 0 2547 48 0 48 48 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82b98ff0) at x86_ipi_db+0x1e 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+0x27 __mp_lock(ffffffff82d1e5d8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d1e5d8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff8000230ed700) at syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000230ed700) at syscall+0x5cd sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73654fcb10b0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff82b98ff0) at x86_ipi_db+0x1e 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+0x27 __mp_lock(ffffffff82d1e5d8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d1e5d8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff8000230ed700) at syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000230ed700) at syscall+0x5cd sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73654fcb10b0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8285f2ad) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806f12b3a8,20002000,20003000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806f12b3a8,20002000,20003000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff800021282550,ffff80002c5c5610,ffff80002c5c5660) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002c5c56e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002c5c56e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2bacf4af5f0, count: 8 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8285f2ad) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806f12b3a8,20002000,20003000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806f12b3a8,20002000,20003000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff800021282550,ffff80002c5c5610,ffff80002c5c5660) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002c5c56e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002c5c56e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2bacf4af5f0, count: -7