panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 371214 92676 32767 0x10 0 0 syz-executor.2 *520320 92676 32767 0x10 0x4000000 1K syz-executor.2 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82857fb1) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8069e04b00,20002000,20004000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8069e04b00,20002000,20004000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a24ed58,ffff800037470d70,ffff800037470dc0) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff800037470e40) at syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a2d30f0c90, 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(ffffffff82857fb1) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8069e04b00,20002000,20004000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8069e04b00,20002000,20004000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a24ed58,ffff800037470d70,ffff800037470dc0) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff800037470e40) at syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a2d30f0c90, count: -7 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800037470b40 rbx 0xffff800029d3cba7 rdx 0 rcx 0xffff80002a24ed58 rax 0xffff800029d3bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xd968763bf6c989b8 r11 0x164edfb70b4e9d93 r12 0xffff800029d3c9a8 r13 0 r14 0 r15 0x1 rip 0xffffffff819f7a0c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800037470b30 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.2) tid=520320 pid=92676 tcnt=5 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=82, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff800031b6d558,0xffff80002bcd5ab0 process=0xffff80002a26fab8 user=0xffff80003746b000, vmspace=0xfffffd8069e04b00 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 12541 175840 15023 32767 2 0x10 syz-executor.6 12541 449849 15023 32767 3 0x4000090 fsleep syz-executor.6 12541 500323 15023 32767 3 0x4000090 fsleep syz-executor.6 92676 371214 71672 32767 7 0x10 syz-executor.2 92676 474451 71672 32767 3 0x4000090 fsleep syz-executor.2 *92676 520320 71672 32767 7 0x4000010 syz-executor.2 92676 70180 71672 32767 2 0x4000010 syz-executor.2 92676 232046 71672 32767 2 0x4000010 syz-executor.2 674 137334 13475 32767 2 0x10 syz-executor.7 674 510054 13475 32767 3 0x4000090 fsleep syz-executor.7 674 207026 13475 32767 2 0x4000010 syz-executor.7 50461 97749 18235 32767 3 0x90 nanoslp syz-executor.1 50461 259278 18235 32767 3 0x4000090 netio syz-executor.1 50461 428742 18235 32767 3 0x4000090 netio syz-executor.1 50461 294244 18235 32767 3 0x4000090 fsleep syz-executor.1 14632 483930 87247 32767 3 0x90 piperd syz-executor.4 87247 209366 41644 0 3 0x82 wait syz-executor.4 18235 211359 98772 32767 2 0x10 syz-executor.1 98772 238606 41644 0 3 0x82 wait syz-executor.1 15023 522368 8027 32767 3 0x90 nanoslp syz-executor.6 8027 407228 41644 0 3 0x82 wait syz-executor.6 37432 405757 58492 32767 3 0x90 nanoslp syz-executor.5 58492 343684 41644 0 3 0x82 wait syz-executor.5 71672 402765 28180 32767 3 0x90 nanoslp syz-executor.2 28180 204484 41644 0 3 0x82 wait syz-executor.2 63891 282323 88053 32767 3 0x10 biowait syz-executor.0 88053 172863 41644 0 3 0x82 wait syz-executor.0 34997 219556 68130 32767 3 0x90 piperd syz-executor.3 68130 168428 41644 0 3 0x82 wait syz-executor.3 13475 256269 77622 32767 3 0x90 nanoslp syz-executor.7 77622 316258 41644 0 3 0x82 wait syz-executor.7 74034 505481 0 0 3 0x14200 bored sosplice 41644 158659 30578 0 3 0x2000082 wait syz-fuzzer 41644 435585 30578 0 3 0x6000082 thrsleep syz-fuzzer 41644 488638 30578 0 3 0x6000082 thrsleep syz-fuzzer 41644 8890 30578 0 3 0x6000082 wait syz-fuzzer 41644 210602 30578 0 3 0x6000082 wait syz-fuzzer 41644 235051 30578 0 3 0x6000082 thrsleep syz-fuzzer 41644 123979 30578 0 3 0x6000082 thrsleep syz-fuzzer 41644 102872 30578 0 3 0x6000082 wait syz-fuzzer 41644 244794 30578 0 3 0x6000082 thrsleep syz-fuzzer 41644 34428 30578 0 3 0x6000082 wait syz-fuzzer 41644 126822 30578 0 3 0x6000082 thrsleep syz-fuzzer 41644 82250 30578 0 3 0x6000082 kqread syz-fuzzer 41644 422262 30578 0 3 0x6000082 wait syz-fuzzer 41644 380821 30578 0 3 0x6000082 thrsleep syz-fuzzer 41644 470615 30578 0 3 0x6000082 wait syz-fuzzer 41644 384000 30578 0 3 0x6000082 wait syz-fuzzer 30578 452503 38888 0 3 0x10008a sigsusp ksh 38888 271557 78362 0 3 0x9a kqread sshd 22464 453584 1 0 3 0x100083 ttyin getty 78362 355902 1 0 3 0x88 kqread sshd 46078 162464 15382 73 3 0x1100090 kqread syslogd 15382 55424 1 0 3 0x100082 netio syslogd 26528 308202 1 0 3 0x100080 kqread resolvd 66525 259471 5048 77 3 0x100092 kqread dhcpleased 39072 440077 5048 77 3 0x100092 kqread dhcpleased 5048 365763 1 0 3 0x80 kqread dhcpleased 68556 497434 0 0 3 0x14200 bored smr 9597 190837 0 0 2 0x14200 zerothread 7207 367435 0 0 3 0x14200 aiodoned aiodoned 6947 228478 0 0 3 0x14200 syncer update 18933 156906 0 0 3 0x14200 cleaner cleaner 9135 346375 0 0 3 0x14200 reaper reaper 62364 410203 0 0 3 0x14200 pgdaemon pagedaemon 79370 464770 0 0 3 0x14200 bored viomb 76085 227191 0 0 3 0x40014200 acpi0 acpi0 29282 138479 0 0 3 0x40014200 idle1 63750 443358 0 0 3 0x14200 bored softnet3 31275 375588 0 0 3 0x14200 bored softnet2 92749 332231 0 0 3 0x14200 bored softnet1 92787 141537 0 0 3 0x14200 bored softnet0 20323 392845 0 0 3 0x14200 bored systqmp 20152 360700 0 0 3 0x14200 bored systq 32356 86243 0 0 3 0x14200 tmoslp softclockmp 43507 354148 0 0 3 0x40014200 tmoslp softclock 58960 363535 0 0 3 0x40014200 idle0 1 205342 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 92676 (syz-executor.2) thread 0xffff80002a24ed58 (520320) shared rwlock vmmaplk r = 0 (0xfffffd8069e04bf8) #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+0x4e6 sys/arch/amd64/amd64/trap.c:606 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82c90110) #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+0x4e6 sys/arch/amd64/amd64/trap.c:606 #8 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff82bfef20) #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+0x4e6 sys/arch/amd64/amd64/trap.c:606 #4 Xsyscall+0x128 Process 63891 (syz-executor.0) thread 0xffff80002a24d2c8 (282323) exclusive rrwlock inode r = 0 (0xfffffd806a2af918) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd805a4d0700) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10220 6413K 6421K 166960K 11453 0 pcb 13 16K 20K 166960K 19 0 rtable 242 6K 7K 166960K 4006 0 pf 29 8K 8K 166960K 131 0 ifaddr 44 15K 16K 166960K 254 0 ifgroup 50 2K 2K 166960K 254 0 sysctl 4 1K 1K 166960K 7 0 counters 64 36K 36K 166960K 166 0 ioctlops 0 0K 2K 166960K 538 0 iov 0 0K 32K 166960K 4708 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1279 80K 80K 166960K 7743 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 508 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 5638 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 22 81K 113K 166960K 36376 0 sigio 0 0K 0K 166960K 715 0 proc 56 78K 115K 166960K 4600 0 subproc 104 6K 6K 166960K 767 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 60662 0 in_multi 99 7K 7K 166960K 1006 0 ether_multi 1 0K 0K 166960K 45 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 4329 0 tdb 3 0K 0K 166960K 3 0 pagedep 1 8K 8K 166960K 1 0 inodedep 1 32K 32K 166960K 1 0 newblk 1 0K 0K 166960K 1 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 526 96K 111K 166960K 361170 0 UVM aobj 131 4K 4K 166960K 131 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 684 0 NDP 11 0K 2K 166960K 180 0 temp 74 5924K 6052K 166960K 92005 0 kqueue 13 20K 32K 166960K 2993 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 2464 0 2461 32 31 1 5 0 8 0 rtentry 112 734 0 620 4 0 4 4 0 8 0 unpcb 144 24225 0 24210 241 240 1 8 0 8 0 syncache 312 523 0 523 66 65 1 1 0 8 1 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 470 0 470 60 59 1 1 0 8 1 tcpcb 808 23953 0 23934 394 382 12 18 0 8 8 arp 120 128 0 110 1 0 1 1 0 8 0 ipq 40 37 0 35 19 18 1 1 0 8 0 ipqe 40 415 0 410 19 18 1 1 0 8 0 inpcb 368 67847 0 67824 565 552 13 25 0 8 8 nd6 136 231 0 203 3 1 2 2 0 8 0 kcovpl 48 59 0 51 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2844 0 2378 35 5 30 31 0 8 0 art_table 32 2845 0 2378 4 0 4 4 0 8 0 art_node 16 733 0 629 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 5633 0 5623 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 47775 0 46265 95 0 95 95 0 8 0 ffsino 272 47775 0 46265 101 0 101 101 0 8 0 nchpl 144 94792 0 93150 63 0 63 63 0 8 0 uvmvnodes 80 6397 0 0 131 0 131 131 0 8 0 vnodes 216 6397 0 0 356 0 356 356 0 8 0 namei 1024 306224 0 306223 10 9 1 2 0 8 0 percpumem 16 97 0 51 1 0 1 1 0 8 0 kstatmem 264 124 0 102 2 0 2 2 0 8 0 scxspl 216 308022 0 308021 129 128 1 8 1 8 0 plimitpl 152 6039 0 6016 56 55 1 2 0 8 0 sigapl 424 36560 0 36507 7 0 7 7 0 8 0 futexpl 64 318012 0 318007 13 12 1 1 0 8 0 knotepl 120 2404 0 0 20 3 17 17 0 8 0 kqueuepl 216 7893 0 7884 138 137 1 5 0 8 0 pipepl 320 10986 0 10958 276 273 3 14 0 8 0 fdescpl 496 36541 0 36508 7 2 5 6 0 8 0 filepl 152 260077 0 259837 478 462 16 30 0 8 5 lockfpl 104 4691 0 4689 3 2 1 2 0 8 0 lockfspl 48 1225 0 1223 1 0 1 1 0 8 0 sessionpl 144 74 0 58 1 0 1 1 0 8 0 pgrppl 48 4849 0 4833 1 0 1 1 0 8 0 ucredpl 104 34890 0 34872 1 0 1 1 0 8 0 zombiepl 144 36508 0 36507 1 0 1 1 0 8 0 processpl 1072 36560 0 36507 5 1 4 5 0 8 0 procpl 680 102934 0 102855 71 63 8 9 0 8 1 sosppl 168 654 0 654 45 44 1 1 0 8 1 sockpl 488 97506 0 97464 1439 1422 17 52 0 8 8 mcl64k 65536 41 0 0 5 2 3 3 0 8 0 mcl16k 16384 39 0 0 5 2 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 49 0 0 5 2 3 3 0 8 0 mcl4k 4096 123 0 0 6 2 4 4 0 8 0 mcl2k2 2112 21 0 0 2 0 2 2 0 8 0 mcl2k 2048 694 0 0 36 24 12 34 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 3389 0 0 134 0 134 134 0 8 0 bufpl 288 64394 0 57996 458 0 458 458 0 8 0 anonpl 24 3693003 0 3680734 372 274 98 127 0 186 0 amapchunkpl 152 1151069 0 1150160 344 305 39 56 0 158 1 amappl16 200 80254 0 79927 532 505 27 43 0 8 8 amappl15 192 51 0 51 14 14 0 1 0 8 0 amappl14 184 309 0 294 2 1 1 2 0 8 0 amappl13 176 13 0 12 1 0 1 1 0 8 0 amappl12 168 37976 0 37934 15 12 3 3 0 8 0 amappl11 160 59 0 49 1 0 1 1 0 8 0 amappl10 152 96 0 84 2 1 1 1 0 8 0 amappl9 144 440 0 439 2 1 1 1 0 8 0 amappl8 136 1907 0 1607 12 1 11 11 0 8 0 amappl7 128 432 0 408 2 0 2 2 0 8 0 amappl6 120 1390 0 1376 1 0 1 1 0 8 0 amappl5 112 869 0 861 1 0 1 1 0 8 0 amappl4 104 1452 0 1409 17 15 2 2 0 8 0 amappl3 96 222581 0 222477 74 71 3 4 0 8 0 amappl2 88 38905 0 38819 22 19 3 3 0 8 1 amappl1 80 137542 0 137008 22 9 13 22 0 8 0 amappl 88 358736 0 358462 9 1 8 8 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 36542 0 36509 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 36542 0 36509 1 0 1 1 0 8 0 vmmpekpl 168 291956 0 291901 4 0 4 4 0 8 0 vmmpepl 168 2125399 0 2122777 514 376 138 142 0 357 7 vmsppl 464 36541 0 36509 7 2 5 6 0 8 0 rwobjpl 56 524372 0 516216 149 30 119 119 0 8 0 pdppl 4096 73091 0 73018 1225 1144 81 89 0 8 8 pvpl 32 39143 0 0 316 0 316 316 0 265 0 pmappl 248 36541 0 36509 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3218 0 2254 28 0 28 28 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82c49ff0) 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(ffffffff82c8ff08) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c8ff08) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff8000374284a0,ffff80000007bd80) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x751a7025eaa0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff82c49ff0) 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(ffffffff82c8ff08) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c8ff08) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff8000374284a0,ffff80000007bd80) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x751a7025eaa0, 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(ffffffff82857fb1) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8069e04b00,20002000,20004000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8069e04b00,20002000,20004000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a24ed58,ffff800037470d70,ffff800037470dc0) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff800037470e40) at syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a2d30f0c90, count: 8 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82857fb1) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8069e04b00,20002000,20004000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8069e04b00,20002000,20004000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a24ed58,ffff800037470d70,ffff800037470dc0) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff800037470e40) at syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a2d30f0c90, count: -7