panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *368449 41161 0 0x1000 0x4080000 1K syz-executor 14567 41161 0 0x1000 0x4080000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8340da45) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806eb99008,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806eb99008,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c0f11c8,1,400000000100,ffff80003c0f11f8,0,b57d01dc0ea2314c,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(4e,ffff80003c0f11c8,1,400000000100,ffff80003c0f11f8,0,b57d01dc0ea2314c,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c0f11c4,2,400000000100,ffff80003c0f11f8,0,27,41140e7f2b1d531b) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff7c50,ffff80003c0f1330,ffff80003c0f1280) at sys_sysctl+0x425 syscall(ffff80003c0f1330) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c0f1330) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x477a599dba0, 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(ffffffff8340da45) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806eb99008,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806eb99008,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c0f11c8,1,400000000100,ffff80003c0f11f8,0,b57d01dc0ea2314c,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(4e,ffff80003c0f11c8,1,400000000100,ffff80003c0f11f8,0,b57d01dc0ea2314c,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c0f11c4,2,400000000100,ffff80003c0f11f8,0,27,41140e7f2b1d531b) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff7c50,ffff80003c0f1330,ffff80003c0f1280) at sys_sysctl+0x425 syscall(ffff80003c0f1330) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c0f1330) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x477a599dba0, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c0f0dd0 rbx 0xffff800029aacdc7 rdx 0xffff80000145d800 rcx 0xffff8000ffff7c50 rax 0xffff800029aabff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xd02bfd5c719d1237 r11 0xce63938c99330a61 r12 0xffff800029aacbc8 r13 0 r14 0 r15 0x1 rip 0xffffffff8320fcc5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c0f0dc0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=368449 pid=41161 tcnt=3 stat=onproc flags process=1000 proc=4080000 runpri=32, usrpri=73, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003bcdacf8 scnt=2 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003bcda7d8,0xffff8000ffff7740 process=0xffff8000ffff9710 user=0xffff80003c0ec000, vmspace=0xfffffd806eb99008 estcpu=23, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 94832 468884 62375 0 2 0 syz-executor 6245 25014 73731 0 2 0 syz-executor 6245 326749 73731 0 3 0x4000080 sbwait syz-executor 91437 275561 29436 -1 3 0x90 nanoslp syz-executor 91437 466876 29436 -1 3 0x4000090 sysctllk syz-executor 91437 266917 29436 -1 3 0x4000090 fsleep syz-executor 79237 123777 75020 0 3 0x80 nanoslp syz-executor 79237 206245 75020 0 3 0x4000080 sysctllk syz-executor 79237 488930 75020 0 3 0x4000080 fsleep syz-executor 24604 369039 69337 0 2 0 syz-executor 24604 138181 69337 0 3 0x4000080 sysctllk syz-executor 24604 492220 69337 0 3 0x4000080 fsleep syz-executor 46638 505348 24955 -1 3 0x90 nanoslp syz-executor 46638 272408 24955 -1 3 0x4000090 lockf syz-executor 46638 496026 24955 -1 3 0x4000090 fsleep syz-executor 83463 92774 29870 60928 3 0x90 nanoslp syz-executor 83463 193227 29870 60928 3 0x4000090 fsleep syz-executor 83463 413678 29870 60928 3 0x4000090 fsleep syz-executor 83463 362130 29870 60928 2 0x4000010 syz-executor 41161 60735 88221 0 3 0x3000 suspend syz-executor *41161 368449 88221 0 7 0x4081000 syz-executor 41161 14567 88221 0 7 0x4081000 syz-executor 59349 146901 0 0 3 0x14200 bored sosplice 62375 389751 99092 0 3 0x82 nanoslp syz-executor 88221 187542 99092 0 3 0x82 nanoslp syz-executor 29436 243043 99092 0 3 0x82 nanoslp syz-executor 69337 208326 99092 0 3 0x82 nanoslp syz-executor 24955 432825 99092 0 3 0x82 nanoslp syz-executor 73731 63759 99092 0 3 0x82 nanoslp syz-executor 75020 209637 99092 0 3 0x82 nanoslp syz-executor 29870 309255 99092 0 3 0x82 nanoslp syz-executor 99092 110756 25665 0 3 0x82 kqread syz-executor 25665 37500 40423 0 3 0x10008a sigsusp ksh 40423 37527 14103 0 3 0x98 kqread sshd-session 14103 146057 14672 0 3 0x92 kqread sshd-session 33457 363838 1 0 3 0x100083 ttyin getty 14672 314302 1 0 3 0x88 kqread sshd 56309 193978 81544 74 3 0x1100092 bpf pflogd 81544 253003 1 0 3 0x80 sbwait pflogd 13283 197301 27348 73 3 0x1100090 kqread syslogd 27348 311716 1 0 3 0x100082 sbwait syslogd 18583 507792 1 0 3 0x100080 kqread resolvd 79196 251132 12122 77 3 0x100092 kqread dhcpleased 19551 57617 12122 77 3 0x100092 kqread dhcpleased 12122 391742 1 0 3 0x80 kqread dhcpleased 75151 157748 0 0 3 0x14200 bored smr 24933 83353 0 0 2 0x14200 zerothread 75604 316402 0 0 3 0x14200 aiodoned aiodoned 11952 321144 0 0 3 0x14200 syncer update 68219 272893 0 0 3 0x14200 cleaner cleaner 95997 165014 0 0 3 0x14200 reaper reaper 77361 413185 0 0 3 0x14200 pgdaemon pagedaemon 92777 55878 0 0 3 0x14200 bored viomb 26459 49618 0 0 3 0x40014200 acpi0 acpi0 1092 324952 0 0 3 0x40014200 idle1 3647 480790 0 0 3 0x14200 bored softnet3 51950 188187 0 0 3 0x14200 bored softnet2 48172 397877 0 0 3 0x14200 bored softnet1 91599 18911 0 0 2 0x14200 softnet0 58281 416466 0 0 3 0x14200 bored systqmp 43084 54102 0 0 3 0x14200 bored systq 82394 38565 0 0 3 0x14200 tmoslp softclockmp 16670 477182 0 0 3 0x40014200 tmoslp softclock 54544 113256 0 0 3 0x40014200 idle0 1 168239 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 41161 (syz-executor) thread 0xffff8000ffff7c50 (368449) shared rwlock vmmaplk r = 0 (0xfffffd806eb99108) #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:1703 #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 (0xffffffff83970498) #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_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 (0xffffffff83801cb8) #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 10204 11099K 11346K 166960K 11572 0 pcb 17 12K 12K 166960K 53 0 rtable 230 8K 9K 166960K 398 0 pf 36 17K 18K 166960K 54 0 ifaddr 42 7K 8K 166960K 53 0 ifgroup 59 2K 2K 166960K 68 0 sysctl 1 1K 1K 166960K 1 0 counters 66 36K 37K 166960K 78 0 ioctlops 0 0K 4K 166960K 1508 0 iov 0 0K 12K 166960K 11 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1336 84K 84K 166960K 1520 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 7 0K 0K 166960K 8 0 dirhash 12 2K 3K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 93K 166960K 371 0 proc 72 91K 140K 166960K 552 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 0 0K 0K 166960K 28 0 in_multi 88 6K 7K 166960K 122 0 ether_multi 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 500 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 243 73K 87K 166960K 5038 0 UVM aobj 11 4K 4K 166960K 11 0 pinsyscall 43 86K 106K 166960K 1494 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 13 0 NDP 13 0K 1K 166960K 32 0 temp 78 8692K 8775K 166960K 12788 0 kqueue 13 20K 26K 166960K 51 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 51 0 48 1 0 1 1 0 8 0 rtentry 112 119 0 16 4 0 4 4 0 8 0 unpcb 144 295 0 269 2 0 2 2 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 808 83 0 76 2 0 2 2 0 8 1 arp 120 21 0 3 1 0 1 1 0 8 0 inpcb 376 329 0 316 8 0 8 8 0 8 6 nd6 136 24 0 3 1 0 1 1 0 8 0 pkpcb 40 2 0 1 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1168 5 0 5 1 0 1 1 0 8 1 pppxif 1480 1 0 1 1 0 1 1 0 8 1 pffrag 232 2 0 1 1 0 1 1 0 482 0 pffrnode 88 2 0 1 1 0 1 1 0 8 0 pffrent 40 3 0 2 1 0 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 pfstitem 24 36 0 0 1 0 1 1 0 8 0 pfstkey 128 36 0 0 2 0 2 2 0 8 0 pfstate 376 36 0 0 4 0 4 4 0 8 0 pfrule 1344 22 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 470 0 52 30 0 30 30 0 8 2 art_table 32 472 0 52 4 0 4 4 0 8 0 art_node 16 118 0 26 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 4 1 0 1 1 0 8 1 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 6 0 1 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1978 0 471 95 0 95 95 0 8 0 ffsino 280 1978 0 471 109 0 109 109 0 8 0 nchpl 144 2471 0 782 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 uvmvnodes 80 2158 0 0 45 0 45 45 0 8 0 vnodes 216 2158 0 0 120 0 120 120 0 8 0 namei 1024 8045 0 8043 2 1 1 2 0 8 0 percpumem 16 53 0 6 1 0 1 1 0 8 0 kstatmem 264 32 0 6 2 0 2 2 0 8 0 scxspl 216 8379 0 8379 9 1 8 8 1 8 8 plimitpl 152 133 0 116 1 0 1 1 0 8 0 sigapl 424 683 0 632 7 1 6 7 0 8 0 futexpl 64 3545 0 3539 1 0 1 1 0 8 0 knotepl 120 320 0 0 10 0 10 10 0 8 0 kqueuepl 216 72 0 63 1 0 1 1 0 8 0 pipepl 328 125 0 97 3 0 3 3 0 8 0 fdescpl 504 664 0 632 5 0 5 5 0 8 0 filepl 152 3007 0 2773 12 0 12 12 0 8 3 lockfpl 104 111 0 106 1 0 1 1 0 8 0 lockfspl 48 55 0 51 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 33 0 16 1 0 1 1 0 8 0 ucredpl 104 281 0 265 1 0 1 1 0 8 0 zombiepl 144 633 0 632 1 0 1 1 0 8 0 processpl 1176 683 0 632 5 0 5 5 0 8 1 procpl 656 1086 0 1021 7 0 7 7 0 8 1 srpgc 96 2 0 2 1 0 1 1 0 8 1 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 688 682 0 640 10 0 10 10 0 8 6 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 124 0 0 16 0 16 16 0 8 0 mcl2k 2048 27 0 0 4 0 4 4 0 8 0 mtagpl 96 33 0 0 1 0 1 1 0 8 0 mbufpl 256 192 0 0 12 0 12 12 0 8 0 bufpl 280 2923 0 128 200 0 200 200 0 8 0 anonpl 24 84782 0 81323 46 0 46 46 0 184 19 amapchunkpl 152 15033 0 14490 29 0 29 29 0 158 7 amappl16 200 903 0 874 16 1 15 15 0 8 11 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 115 0 103 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 1326 0 1294 4 1 3 3 0 8 0 amappl11 160 48 0 34 1 0 1 1 0 8 0 amappl10 152 2 0 1 1 0 1 1 0 8 0 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 53 0 50 1 0 1 1 0 8 0 amappl7 128 106 0 94 1 0 1 1 0 8 0 amappl6 120 184 0 181 1 0 1 1 0 8 0 amappl5 112 127 0 118 1 0 1 1 0 8 0 amappl4 104 321 0 302 1 0 1 1 0 8 0 amappl3 96 2875 0 2751 4 0 4 4 0 8 0 amappl2 88 658 0 592 2 0 2 2 0 8 0 amappl1 80 8851 0 8284 14 0 14 14 0 8 0 amappl 88 4638 0 4452 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 dma512 512 1 0 1 1 0 1 1 0 8 1 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 10 0 0 1 0 1 1 0 8 0 uaddrrnd 24 664 0 632 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 664 0 632 1 0 1 1 0 8 0 vmmpekpl 168 7122 0 7081 2 0 2 2 0 8 0 vmmpepl 168 45286 0 43362 94 0 94 94 0 357 9 vmsppl 456 663 0 632 5 0 5 5 0 8 1 rwobjpl 64 16419 0 13300 54 0 54 54 0 8 3 pdppl 4096 1336 0 1264 104 32 72 86 0 8 0 pvpl 32 14650 0 0 120 1 119 119 0 265 0 pmappl 248 663 0 632 3 0 3 3 0 8 1 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 287 0 35 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837e1ff0) 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(ffffffff83970290) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83970290) at __mp_lock+0x192 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff83970290,1) at __mp_acquire_count+0x58 mi_switch() at mi_switch+0x4b7 sys/kern/sched_bsd.c:441 sleep_finish(0,1) at sleep_finish+0x24f sys/kern/kern_synch.c:414 rw_do_enter_write(fffffd805f932948,1) at rw_do_enter_write+0x1de sys/kern/kern_rwlock.c:292 rrw_enter(fffffd805f932948,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd805ee891b0,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd805ee891b0,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c526b70) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80003c526b70) at namei+0x7aa sys/kern/vfs_lookup.c:250 vn_open(ffff80003c526b70,3,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 end trace frame: 0xffff80003c526cc0, count: 0 ddb{0}> trace x86_ipi_db(ffffffff837e1ff0) 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(ffffffff83970290) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83970290) at __mp_lock+0x192 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff83970290,1) at __mp_acquire_count+0x58 mi_switch() at mi_switch+0x4b7 sys/kern/sched_bsd.c:441 sleep_finish(0,1) at sleep_finish+0x24f sys/kern/kern_synch.c:414 rw_do_enter_write(fffffd805f932948,1) at rw_do_enter_write+0x1de sys/kern/kern_rwlock.c:292 rrw_enter(fffffd805f932948,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd805ee891b0,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd805ee891b0,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c526b70) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80003c526b70) at namei+0x7aa sys/kern/vfs_lookup.c:250 vn_open(ffff80003c526b70,3,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 vndioctl(2902,c0384600,ffff80003c526e90,41,ffff8000ffff6540) at vndioctl+0xcb1 sys/dev/vnd.c:457 VOP_IOCTL(fffffd806e5d7c30,c0384600,ffff80003c526e90,41,fffffd807f7d2680,ffff8000ffff6540) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806baaf8e8,c0384600,ffff80003c526e90,ffff8000ffff6540) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff8000ffff6540,ffff80003c527070,ffff80003c526fc0) at sys_ioctl+0x5c3 syscall(ffff80003c527070) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c527070) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x477593e69a0, count: -20 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(ffffffff8340da45) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806eb99008,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806eb99008,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c0f11c8,1,400000000100,ffff80003c0f11f8,0,b57d01dc0ea2314c,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(4e,ffff80003c0f11c8,1,400000000100,ffff80003c0f11f8,0,b57d01dc0ea2314c,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c0f11c4,2,400000000100,ffff80003c0f11f8,0,27,41140e7f2b1d531b) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff7c50,ffff80003c0f1330,ffff80003c0f1280) at sys_sysctl+0x425 syscall(ffff80003c0f1330) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c0f1330) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x477a599dba0, count: 6 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8340da45) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806eb99008,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806eb99008,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c0f11c8,1,400000000100,ffff80003c0f11f8,0,b57d01dc0ea2314c,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(4e,ffff80003c0f11c8,1,400000000100,ffff80003c0f11f8,0,b57d01dc0ea2314c,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c0f11c4,2,400000000100,ffff80003c0f11f8,0,27,41140e7f2b1d531b) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff7c50,ffff80003c0f1330,ffff80003c0f1280) at sys_sysctl+0x425 syscall(ffff80003c0f1330) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c0f1330) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x477a599dba0, count: -9