panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *433759 88458 32767 0x10 0x4000000 1 syz-executor.4 74246 41466 0 0x14000 0x200 0 reaper db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8285e089) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8064bd4028,20002000,20004000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8064bd4028,20002000,20004000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff8000211db2b0,ffff80002e465000,ffff80002e465050) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002e4650d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4650d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9678da92a0, 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(ffffffff8285e089) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8064bd4028,20002000,20004000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8064bd4028,20002000,20004000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff8000211db2b0,ffff80002e465000,ffff80002e465050) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002e4650d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4650d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9678da92a0, count: -7 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002e464dd0 rbx 0xffff800020d49ba7 rdx 0 rcx 0xffff8000211db2b0 rax 0xffff800020d48ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x348dcae5e6b738c9 r11 0x28262d29d0a8038d r12 0xffff800020d499a8 r13 0 r14 0 r15 0x1 rip 0xffffffff8198398c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002e464dc0 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.4) tid=433759 pid=88458 tcnt=3 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=86, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff8000212217e8,0xffff8000211da578 process=0xffff80002e418020 user=0xffff80002e460000, vmspace=0xfffffd8064bd4028 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 33198 382887 49755 32767 2 0x10 syz-executor.5 33198 29655 49755 32767 2 0x4000010 syz-executor.5 66337 157535 95181 32767 2 0x10 syz-executor.3 66337 51331 95181 32767 2 0x4000010 syz-executor.3 66337 278932 95181 32767 2 0x4000010 syz-executor.3 66337 152765 95181 32767 2 0x4000010 syz-executor.3 66337 205590 95181 32767 2 0x4000010 syz-executor.3 66337 194706 95181 32767 2 0x4000010 syz-executor.3 58758 18573 31816 32767 2 0x10 syz-executor.1 58758 96044 31816 32767 2 0x4000010 syz-executor.1 88458 51063 90688 32767 2 0x10 syz-executor.4 88458 73279 90688 32767 2 0x4000010 syz-executor.4 *88458 433759 90688 32767 7 0x4000010 syz-executor.4 1251 415622 45780 32767 3 0x3010 suspend syz-executor.2 1251 402247 45780 32767 2 0x4081090 syz-executor.2 5559 336476 32140 32767 2 0x10 syz-executor.7 51657 48758 5452 32767 2 0x10 syz-executor.6 16135 385533 50495 32767 2 0x10 syz-executor.0 16135 489847 50495 32767 3 0x4000090 fsleep syz-executor.0 50495 280823 24605 32767 3 0x90 nanoslp syz-executor.0 24605 404490 77363 0 3 0x82 wait syz-executor.0 32140 93024 49695 32767 2 0x10 syz-executor.7 49695 177451 77363 0 3 0x82 wait syz-executor.7 49755 353806 33414 32767 3 0x90 nanoslp syz-executor.5 33414 511226 77363 0 3 0x82 wait syz-executor.5 95181 363564 20691 32767 3 0x90 nanoslp syz-executor.3 20691 219241 77363 0 3 0x82 wait syz-executor.3 31816 57131 59369 32767 3 0x90 nanoslp syz-executor.1 59369 263582 77363 0 3 0x82 wait syz-executor.1 45780 520599 1980 32767 3 0x90 nanoslp syz-executor.2 1980 513665 77363 0 3 0x82 wait syz-executor.2 5452 250436 17525 32767 3 0x90 nanoslp syz-executor.6 17525 507129 77363 0 3 0x82 wait syz-executor.6 90688 59611 61005 32767 3 0x90 nanoslp syz-executor.4 61005 173745 77363 0 3 0x82 wait syz-executor.4 98257 423499 0 0 3 0x14200 bored sosplice 77363 331053 41427 0 3 0x2000082 wait syz-fuzzer 77363 279766 41427 0 3 0x6000082 thrsleep syz-fuzzer 77363 37506 41427 0 3 0x6000082 wait syz-fuzzer 77363 28193 41427 0 3 0x6000082 thrsleep syz-fuzzer 77363 351806 41427 0 3 0x6000082 wait syz-fuzzer 77363 64918 41427 0 3 0x6000082 thrsleep syz-fuzzer 77363 36128 41427 0 3 0x6000082 wait syz-fuzzer 77363 441843 41427 0 3 0x6000082 wait syz-fuzzer 77363 281355 41427 0 3 0x6000082 wait syz-fuzzer 77363 406005 41427 0 3 0x6000082 thrsleep syz-fuzzer 77363 514156 41427 0 3 0x6000082 thrsleep syz-fuzzer 77363 327624 41427 0 3 0x6000082 kqread syz-fuzzer 77363 461402 41427 0 3 0x6000082 wait syz-fuzzer 77363 361750 41427 0 3 0x6000082 thrsleep syz-fuzzer 77363 133216 41427 0 3 0x6000082 wait syz-fuzzer 77363 49469 41427 0 3 0x6000082 thrsleep syz-fuzzer 41427 62004 40507 0 3 0x10008a sigsusp ksh 40507 513720 75417 0 3 0x9a kqread sshd 85026 124714 1 0 3 0x100083 ttyin getty 75417 289612 1 0 3 0x88 kqread sshd 85962 420775 6433 73 3 0x1100090 kqread syslogd 6433 211931 1 0 3 0x100082 netio syslogd 12818 392305 1 0 3 0x100080 kqread resolvd 59518 40816 61499 77 3 0x100092 kqread dhcpleased 1704 483122 61499 77 3 0x100092 kqread dhcpleased 61499 135544 1 0 3 0x80 kqread dhcpleased 76188 270565 0 0 3 0x14200 bored smr 50459 282173 0 0 2 0x14200 zerothread 85680 431038 0 0 3 0x14200 aiodoned aiodoned 73925 420613 0 0 3 0x14200 syncer update 67141 39531 0 0 3 0x14200 cleaner cleaner 41466 74246 0 0 7 0x14200 reaper 3149 343525 0 0 3 0x14200 pgdaemon pagedaemon 36213 316991 0 0 3 0x14200 bored viomb 82166 357704 0 0 3 0x40014200 acpi0 acpi0 35534 40989 0 0 3 0x40014200 idle1 5369 520831 0 0 3 0x14200 bored softnet3 7221 496899 0 0 3 0x14200 bored softnet2 55284 52973 0 0 3 0x14200 bored softnet1 57840 409653 0 0 3 0x14200 bored softnet0 71116 479102 0 0 3 0x14200 bored systqmp 65518 12875 0 0 3 0x14200 bored systq 12256 433109 0 0 3 0x14200 tmoslp softclockmp 72978 289400 0 0 3 0x40014200 tmoslp softclock 46974 245777 0 0 3 0x40014200 idle0 1 131350 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex vmmpepl r = 0 (0xffffffff82d415f0) #0 witness_lock+0x447 #1 mtx_enter_try+0x104 #2 mtx_enter+0x4f sys/kern/kern_lock.c:266 #3 pool_put+0x84 sys/kern/subr_pool.c:797 #4 uvm_unmap_detach+0xee sys/uvm/uvm_map.c:1363 #5 sys_munmap+0x22e sys/uvm/uvm_mmap.c:539 #6 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #6 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #7 Xsyscall+0x128 Process 88458 (syz-executor.4) thread 0xffff8000211db2b0 (433759) shared rwlock vmmaplk r = 0 (0xfffffd8064bd4120) #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 (0xffffffff82d3a060) #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 (0xffffffff82c36ff0) #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10206 6411K 6421K 78643K 11375 0 pcb 13 12K 14K 78643K 17 0 rtable 240 6K 7K 78643K 1716 0 pf 29 8K 8K 78643K 89 0 ifaddr 44 15K 16K 78643K 170 0 ifgroup 50 2K 2K 78643K 170 0 sysctl 3 0K 2K 78643K 6 0 counters 60 35K 35K 78643K 120 0 ioctlops 0 0K 2K 78643K 243 0 iov 0 0K 16K 78643K 979 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1278 80K 80K 78643K 3399 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 1240 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 2930 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 26 97K 125K 78643K 12127 0 sigio 0 0K 0K 78643K 168 0 proc 56 78K 115K 78643K 1914 0 subproc 104 6K 6K 78643K 494 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 763 0 in_multi 99 7K 7K 78643K 495 0 ether_multi 1 0K 0K 78643K 13 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 157 705K 705K 78643K 157 0 exec 0 0K 1K 78643K 2455 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 435 92K 106K 78643K 118787 0 UVM aobj 131 4K 4K 78643K 148 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 227 0 NDP 13 0K 2K 78643K 117 0 temp 74 5924K 6052K 78643K 33627 0 kqueue 12 18K 33K 78643K 933 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 120 776 0 772 7 6 1 3 0 8 0 rtentry 112 461 0 348 4 0 4 4 0 8 0 unpcb 144 8973 0 8960 85 84 1 10 0 8 0 syncache 312 170 0 170 19 19 0 1 0 8 0 tcpqe 32 260 0 260 19 19 0 1 0 8 0 tcpcb 808 4611 0 4563 107 100 7 15 0 8 0 arp 120 80 0 62 1 0 1 1 0 8 0 ipq 40 10 0 9 6 5 1 1 0 8 0 ipqe 40 95 0 94 6 5 1 1 0 8 0 inpcb 368 8350 0 8299 114 106 8 23 0 8 0 nd6 136 132 0 105 2 1 1 2 0 8 0 kcovpl 48 38 0 30 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1871 0 1407 32 2 30 30 0 8 1 art_table 32 1872 0 1407 4 0 4 4 0 8 0 art_node 16 460 0 357 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 6 1 0 1 1 0 8 0 semapl 112 2928 0 2918 1 0 1 1 0 8 0 shmpl 112 145 0 17 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 17388 0 15928 92 0 92 92 0 8 0 ffsino 272 17388 0 15928 98 0 98 98 0 8 0 nchpl 144 36647 0 35001 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 117572 0 117572 4 3 1 1 0 8 1 percpumem 16 73 0 30 1 0 1 1 0 8 0 kstatmem 264 82 0 60 2 0 2 2 0 8 0 scxspl 216 107847 0 107847 28 27 1 8 1 8 1 plimitpl 152 1603 0 1580 21 19 2 2 0 8 1 sigapl 424 12365 0 12309 7 0 7 7 0 8 0 futexpl 64 125500 0 125498 5 4 1 1 0 8 0 knotepl 120 838 0 0 17 0 17 17 0 8 0 kqueuepl 216 3380 0 3372 35 34 1 7 0 8 0 pipepl 320 2956 0 2928 104 101 3 13 0 8 0 fdescpl 496 12346 0 12309 7 2 5 6 0 8 0 filepl 152 80015 0 79780 132 122 10 20 0 8 0 lockfpl 104 3799 0 3797 6 5 1 2 0 8 0 lockfspl 48 1068 0 1066 1 0 1 1 0 8 0 sessionpl 144 53 0 37 1 0 1 1 0 8 0 pgrppl 48 188 0 172 1 0 1 1 0 8 0 ucredpl 104 10176 0 10158 1 0 1 1 0 8 0 zombiepl 144 12310 0 12309 1 0 1 1 0 8 0 processpl 1072 12365 0 12309 5 1 4 5 0 8 0 procpl 680 33115 0 33033 24 16 8 8 0 8 1 sosppl 168 180 0 180 8 8 0 1 0 8 0 sockpl 488 18701 0 18633 335 323 12 42 0 8 0 mcl64k 65536 25 0 0 4 1 3 3 0 8 0 mcl16k 16384 19 0 0 3 1 2 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 14 0 0 1 0 1 1 0 8 0 mcl8k 8192 27 0 0 3 0 3 3 0 8 0 mcl4k 4096 51 0 0 3 0 3 3 0 8 0 mcl2k2 2112 12 0 0 1 0 1 1 0 8 0 mcl2k 2048 359 0 0 33 6 27 33 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 1353 0 0 62 0 62 62 0 8 0 bufpl 288 22371 0 16048 452 0 452 452 0 8 0 anonpl 24 1300902 0 1290718 236 149 87 97 0 186 0 amapchunkpl 152 376098 0 375212 114 77 37 49 0 158 0 amappl16 200 28041 0 27724 171 142 29 29 0 8 12 amappl15 192 19 0 18 1 0 1 1 0 8 0 amappl14 184 242 0 227 2 1 1 2 0 8 0 amappl13 176 27 0 27 9 9 0 1 0 8 0 amappl12 168 13440 0 13397 2 0 2 2 0 8 0 amappl11 160 53 0 42 1 0 1 1 0 8 0 amappl10 152 73 0 59 1 0 1 1 0 8 0 amappl9 144 277 0 277 18 17 1 1 0 8 1 amappl8 136 689 0 548 6 0 6 6 0 8 0 amappl7 128 316 0 291 2 0 2 2 0 8 0 amappl6 120 895 0 877 1 0 1 1 0 8 0 amappl5 112 367 0 357 1 0 1 1 0 8 0 amappl4 104 912 0 882 2 1 1 2 0 8 0 amappl3 96 73781 0 73681 5 2 3 4 0 8 0 amappl2 88 14200 0 14117 3 1 2 3 0 8 0 amappl1 80 53286 0 52753 22 9 13 22 0 8 0 amappl 88 117655 0 117389 9 2 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 72 147 0 17 3 0 3 3 0 8 0 uaddrrnd 24 12346 0 12309 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 12346 0 12309 1 0 1 1 0 8 0 vmmpekpl 168 98167 0 98115 3 0 3 3 0 8 0 vmmpepl 168 733198 0 730626 261 129 132 132 0 357 16 vmsppl 464 12345 0 12309 7 2 5 6 0 8 0 rwobjpl 56 186702 0 179235 123 15 108 109 0 8 0 pdppl 4096 24700 0 24618 498 416 82 96 0 8 0 pvpl 32 3700148 0 3682985 514 350 164 334 0 265 3 pmappl 248 12345 0 12309 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1555 0 672 26 0 26 26 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82bf4ff0) 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 __sanitizer_cov_trace_const_cmp4(10,ffff8000211af260) at __sanitizer_cov_trace_const_cmp4+0x13 sys/dev/kcov.c:234 mtx_enter_try(ffffffff82bf0920) at mtx_enter_try+0x49 sys/kern/kern_lock.c:287 mtx_enter(ffffffff82bf0920) at mtx_enter+0x4f sys/kern/kern_lock.c:266 msleep(ffffffff82cc6fb8,ffffffff82bf0920,4,ffffffff82864a2c,0) at msleep+0x1f1 sys/kern/kern_synch.c:239 reaper(ffff8000211a3548) at reaper+0xdb sys/kern/kern_exit.c:429 end trace frame: 0x0, count: 7 ddb{0}> trace x86_ipi_db(ffffffff82bf4ff0) 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 __sanitizer_cov_trace_const_cmp4(10,ffff8000211af260) at __sanitizer_cov_trace_const_cmp4+0x13 sys/dev/kcov.c:234 mtx_enter_try(ffffffff82bf0920) at mtx_enter_try+0x49 sys/kern/kern_lock.c:287 mtx_enter(ffffffff82bf0920) at mtx_enter+0x4f sys/kern/kern_lock.c:266 msleep(ffffffff82cc6fb8,ffffffff82bf0920,4,ffffffff82864a2c,0) at msleep+0x1f1 sys/kern/kern_synch.c:239 reaper(ffff8000211a3548) at reaper+0xdb sys/kern/kern_exit.c:429 end trace frame: 0x0, count: -8 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(ffffffff8285e089) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8064bd4028,20002000,20004000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8064bd4028,20002000,20004000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff8000211db2b0,ffff80002e465000,ffff80002e465050) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002e4650d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4650d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9678da92a0, count: 8 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8285e089) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8064bd4028,20002000,20004000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8064bd4028,20002000,20004000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff8000211db2b0,ffff80002e465000,ffff80002e465050) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002e4650d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4650d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9678da92a0, count: -7