panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 338778 86672 0 0 0 0 syz-executor *187455 86672 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83406ed4) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bd161e8,400000000000,400000011000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806bd161e8,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(49,ffff80003c5aa098,4,400000000100,ffff80003c5aa0c8,0,24678e40aa1a2862,4) at kern_sysctl_dirs+0x340 sysctl_vsunlock sys/kern/kern_sysctl.c:213 [inline] kern_sysctl_dirs(49,ffff80003c5aa098,4,400000000100,ffff80003c5aa0c8,0,24678e40aa1a2862,4) at kern_sysctl_dirs+0x340 sys/kern/kern_sysctl.c:430 kern_sysctl(ffff80003c5aa094,5,400000000100,ffff80003c5aa0c8,0,37,5388e65e8acd7db5) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 sys_sysctl(ffff8000ffffa7a8,ffff80003c5aa200,ffff80003c5aa150) at sys_sysctl+0x425 syscall(ffff80003c5aa200) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5aa200) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27fb9729b20, 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:437 panic(ffffffff83406ed4) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bd161e8,400000000000,400000011000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806bd161e8,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(49,ffff80003c5aa098,4,400000000100,ffff80003c5aa0c8,0,24678e40aa1a2862,4) at kern_sysctl_dirs+0x340 sysctl_vsunlock sys/kern/kern_sysctl.c:213 [inline] kern_sysctl_dirs(49,ffff80003c5aa098,4,400000000100,ffff80003c5aa0c8,0,24678e40aa1a2862,4) at kern_sysctl_dirs+0x340 sys/kern/kern_sysctl.c:430 kern_sysctl(ffff80003c5aa094,5,400000000100,ffff80003c5aa0c8,0,37,5388e65e8acd7db5) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 sys_sysctl(ffff8000ffffa7a8,ffff80003c5aa200,ffff80003c5aa150) at sys_sysctl+0x425 syscall(ffff80003c5aa200) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5aa200) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27fb9729b20, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c5a9ca0 rbx 0xffff800029aacdc7 rdx 0 rcx 0xffff8000ffffa7a8 rax 0xffff800029aabff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xaa17fa973078496d r11 0x94e1f9ec44ac1e5c r12 0xffff800029aacbc8 r13 0 r14 0 r15 0x1 rip 0xffffffff811241e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c5a9c90 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=187455 pid=86672 tcnt=5 stat=onproc flags process=0 proc=4000000 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c518548,0xffff80003c4df478 process=0xffff80003c59cff0 user=0xffff80003c5a5000, vmspace=0xfffffd806bd161e8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 86672 338778 16761 0 7 0 syz-executor *86672 187455 16761 0 7 0x4000000 syz-executor 86672 26926 16761 0 3 0x4000080 fsleep syz-executor 86672 500668 16761 0 2 0x4000000 syz-executor 86672 514263 16761 0 2 0x4000000 syz-executor 93967 215356 30976 0 2 0 syz-executor 93967 125893 30976 0 3 0x4000080 fsleep syz-executor 49905 438525 647 0 2 0 syz-executor 49905 233066 647 0 3 0x4000080 fsleep syz-executor 58858 70510 94813 0 2 0 syz-executor 58858 74896 94813 0 3 0x4000080 msgwait syz-executor 58858 432861 94813 0 2 0x4000000 syz-executor 91234 84939 95717 0 3 0x80 nanoslp syz-executor 91234 432141 95717 0 3 0x4000080 msgwait syz-executor 91234 508983 95717 0 3 0x4000080 fsleep syz-executor 13197 294818 22725 0 3 0x80 nanoslp syz-executor 13197 43052 22725 0 3 0x4000080 kqsel syz-executor 13197 217641 22725 0 3 0x4000080 fsleep syz-executor 37805 500989 0 0 3 0x14200 acct acct 9225 412537 0 0 3 0x14200 bored sosplice 9391 334358 0 0 3 0x14280 nfsidl nfsio 54271 180302 0 0 3 0x14280 nfsidl nfsio 70596 407542 0 0 3 0x14280 nfsidl nfsio 54254 457947 0 0 3 0x14280 nfsidl nfsio 97346 198591 0 0 3 0x14280 nfsidl nfsio 76866 472742 0 0 3 0x14280 nfsidl nfsio 34601 365197 0 0 3 0x14280 nfsidl nfsio 159 104280 0 0 3 0x14280 nfsidl nfsio 74183 426040 0 0 3 0x14280 nfsidl nfsio 75249 100550 0 0 3 0x14280 nfsidl nfsio 50850 165879 0 0 3 0x14280 nfsidl nfsio 3423 38964 0 0 3 0x14280 nfsidl nfsio 5961 328678 0 0 3 0x14280 nfsidl nfsio 7826 448692 0 0 3 0x14280 nfsidl nfsio 39306 512031 0 0 3 0x14280 nfsidl nfsio 60761 148372 0 0 3 0x14280 nfsidl nfsio 88629 427579 0 0 3 0x14280 nfsidl nfsio 9084 395129 0 0 3 0x14280 nfsidl nfsio 10790 477602 0 0 3 0x14280 nfsidl nfsio 64841 121761 0 0 3 0x14280 nfsidl nfsio 647 151931 85011 0 3 0x82 nanoslp syz-executor 94813 384980 85011 0 3 0x82 nanoslp syz-executor 95717 219116 85011 0 3 0x82 nanoslp syz-executor 24887 425577 85011 0 3 0x82 nanoslp syz-executor 30976 419817 85011 0 3 0x82 nanoslp syz-executor 22725 451907 85011 0 3 0x82 nanoslp syz-executor 83706 178277 85011 0 3 0x82 nanoslp syz-executor 16761 324466 85011 0 3 0x82 nanoslp syz-executor 85011 143646 64986 0 3 0x82 kqread syz-executor 64986 187413 99311 0 3 0x10008a sigsusp ksh 99311 413954 12795 0 3 0x98 kqread sshd-session 12795 440735 96785 0 3 0x92 kqread sshd-session 59806 384850 1 0 3 0x100083 ttyin getty 96785 298859 1 0 3 0x88 kqread sshd 44290 201172 23977 74 3 0x1100092 bpf pflogd 23977 125938 1 0 3 0x80 sbwait pflogd 10188 268727 19096 73 3 0x1100090 kqread syslogd 19096 300240 1 0 3 0x100082 sbwait syslogd 91485 37319 1 0 3 0x100080 kqread resolvd 78132 484522 14656 77 3 0x100092 kqread dhcpleased 68720 359356 14656 77 3 0x100092 kqread dhcpleased 14656 177509 1 0 3 0x80 kqread dhcpleased 30293 169223 0 0 3 0x14200 bored smr 74984 41755 0 0 2 0x14200 zerothread 48298 65930 0 0 3 0x14200 aiodoned aiodoned 69510 56740 0 0 3 0x14200 syncer update 69480 218335 0 0 3 0x14200 cleaner cleaner 81752 196492 0 0 3 0x14200 reaper reaper 28689 190966 0 0 3 0x14200 pgdaemon pagedaemon 20988 443092 0 0 3 0x14200 bored viomb 97932 445261 0 0 3 0x40014200 acpi0 acpi0 70527 375847 0 0 3 0x40014200 idle1 13655 577 0 0 3 0x14200 bored softnet3 45282 253420 0 0 3 0x14200 bored softnet2 23132 445717 0 0 3 0x14200 bored softnet1 18535 506158 0 0 3 0x14200 bored softnet0 5517 249895 0 0 3 0x14200 bored systqmp 37179 102539 0 0 3 0x14200 bored systq 51279 462702 0 0 3 0x14200 tmoslp softclockmp 7372 113265 0 0 3 0x40014200 tmoslp softclock 30991 25028 0 0 3 0x40014200 idle0 1 502697 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 86672 (syz-executor) thread 0xffff8000ffffa7a8 (187455) shared rwlock vmmaplk r = 0 (0xfffffd806bd162e8) #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+0x340 sysctl_vsunlock sys/kern/kern_sysctl.c:213 [inline] #3 kern_sysctl_dirs+0x340 sys/kern/kern_sysctl.c:430 #4 kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 #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 (0xffffffff838ffb08) #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 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1864 #6 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:732 #7 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #8 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1681 #9 sysctl_vslock+0x109 sys/kern/kern_sysctl.c:195 #10 kern_sysctl_dirs+0x247 sys/kern/kern_sysctl.c:426 #11 kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 #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 (0xffffffff838526d8) #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:185 #3 kern_sysctl_dirs+0x247 sys/kern/kern_sysctl.c:426 #4 kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 #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 10215 11166K 11419K 166960K 11730 0 pcb 17 12K 12K 166960K 54 0 rtable 222 11K 12K 166960K 385 0 pf 35 17K 18K 166960K 69 0 ifaddr 40 6K 7K 166960K 55 0 ifgroup 53 2K 2K 166960K 73 0 sysctl 1 1K 1K 166960K 1 0 counters 64 36K 37K 166960K 82 0 ioctlops 0 0K 8K 166960K 1508 0 iov 0 0K 16K 166960K 51 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1350 85K 85K 166960K 1629 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 17 3K 3K 166960K 20 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 18 65K 89K 166960K 402 0 sigio 0 0K 0K 166960K 6 0 proc 72 91K 128K 166960K 557 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 54 0 in_multi 88 6K 7K 166960K 109 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 409 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 244 78K 87K 166960K 5518 0 UVM aobj 14 2K 2K 166960K 17 0 pinsyscall 43 86K 101K 166960K 1535 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 11 0 NDP 12 0K 2K 166960K 35 0 temp 45 8636K 8700K 166960K 10259 0 kqueue 13 20K 28K 166960K 86 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 52 0 48 1 0 1 1 0 8 0 rtentry 112 115 0 16 4 0 4 4 0 8 0 unpcb 144 211 0 191 1 0 1 1 0 8 0 syncache 336 9 0 9 2 1 1 1 0 8 1 tcpqe 32 3 0 3 1 0 1 1 0 8 1 tcpcb 808 80 0 71 2 0 2 2 0 8 0 arp 120 19 0 3 1 0 1 1 0 8 0 inpcb 376 425 0 410 9 1 8 8 0 8 5 nd6 136 24 0 3 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 7 0 6 1 0 1 1 0 8 0 pppxif 1472 1 0 1 1 0 1 1 0 8 1 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 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 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 36 0 0 1 0 1 1 0 8 0 pfstkey 128 38 0 2 2 0 2 2 0 8 0 pfstate 376 37 0 1 4 0 4 4 0 8 0 pfrule 1344 23 0 17 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 463 0 52 29 0 29 29 0 8 2 art_table 32 464 0 52 4 0 4 4 0 8 0 art_node 16 114 0 24 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 5 1 0 1 1 0 8 0 semapl 112 15 0 0 1 0 1 1 0 8 0 shmpl 112 14 0 3 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2127 0 625 95 0 95 95 0 8 0 ffsino 280 2127 0 625 109 0 109 109 0 8 0 nchpl 144 2684 0 993 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 uvmvnodes 80 2350 0 0 48 0 48 48 0 8 0 vnodes 216 2350 0 0 131 0 131 131 0 8 0 namei 1024 8729 0 8729 2 1 1 2 0 8 1 percpumem 16 55 0 9 1 0 1 1 0 8 0 kstatmem 264 36 0 12 2 0 2 2 0 8 0 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 8259 0 8259 3 2 1 2 1 8 1 plimitpl 152 134 0 115 1 0 1 1 0 8 0 sigapl 424 737 0 665 9 0 9 9 0 8 0 futexpl 64 4384 0 4379 1 0 1 1 0 8 0 knotepl 120 457 0 0 14 0 14 14 0 8 0 kqueuepl 216 120 0 108 1 0 1 1 0 8 0 pipepl 328 130 0 103 3 0 3 3 0 8 0 fdescpl 504 696 0 664 5 0 5 5 0 8 0 filepl 152 3367 0 3131 13 0 13 13 0 8 3 lockfpl 104 97 0 95 1 0 1 1 0 8 0 lockfspl 48 42 0 40 1 0 1 1 0 8 0 sessionpl 144 27 0 18 1 0 1 1 0 8 0 pgrppl 48 36 0 19 1 0 1 1 0 8 0 ucredpl 104 573 0 559 1 0 1 1 0 8 0 zombiepl 144 667 0 665 2 1 1 1 0 8 0 processpl 1168 737 0 665 6 0 6 6 0 8 0 procpl 648 1205 0 1121 8 0 8 8 0 8 0 srpgc 96 2 0 2 1 0 1 1 0 8 1 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 688 692 0 653 11 1 10 10 0 8 5 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 118 0 0 15 0 15 15 0 8 0 mcl2k 2048 23 0 0 3 0 3 3 0 8 0 mtagpl 96 20 0 0 1 0 1 1 0 8 0 mbufpl 256 1166 0 0 73 0 73 73 0 8 0 bufpl 280 3881 0 130 268 0 268 268 0 8 0 anonpl 24 138867 0 133283 49 3 46 46 0 184 12 amapchunkpl 152 17181 0 16510 28 0 28 28 0 158 2 amappl16 200 3068 0 3038 22 10 12 15 0 8 8 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 123 0 111 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 1 0 1 0 8 0 amappl12 168 1359 0 1327 3 1 2 2 0 8 0 amappl11 160 50 0 36 1 0 1 1 0 8 0 amappl10 152 2 0 2 1 1 0 1 0 8 0 amappl9 144 266 0 265 1 0 1 1 0 8 0 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 136 0 124 1 0 1 1 0 8 0 amappl6 120 184 0 181 1 0 1 1 0 8 0 amappl5 112 119 0 110 1 0 1 1 0 8 0 amappl4 104 340 0 322 1 0 1 1 0 8 0 amappl3 96 3095 0 2969 4 0 4 4 0 8 0 amappl2 88 695 0 632 2 0 2 2 0 8 0 amappl1 80 9845 0 9265 16 0 16 16 0 8 0 amappl 88 5097 0 4911 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 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 16 0 3 1 0 1 1 0 8 0 uaddrrnd 24 696 0 664 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 696 0 664 1 0 1 1 0 8 0 vmmpekpl 168 7906 0 7872 2 0 2 2 0 8 0 vmmpepl 168 50824 0 48883 96 1 95 95 0 357 10 vmsppl 456 695 0 664 5 0 5 5 0 8 1 rwobjpl 64 19970 0 16650 54 0 54 54 0 8 0 pdppl 4096 1399 0 1328 103 32 71 83 0 8 0 pvpl 32 15079 0 0 122 0 122 122 0 265 0 pmappl 248 695 0 664 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 345 0 36 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83883ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff838ff900) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838ff900) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff838ff900) at __mp_lock+0x19e __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838ff900) at __mp_lock+0x19e sys/kern/kern_lock.c:144 syscall(ffff80003c4f2ef0) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4f2ef0) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72d3e3063e20, count: 6 ddb{0}> trace x86_ipi_db(ffffffff83883ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff838ff900) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838ff900) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff838ff900) at __mp_lock+0x19e __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838ff900) at __mp_lock+0x19e sys/kern/kern_lock.c:144 syscall(ffff80003c4f2ef0) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4f2ef0) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72d3e3063e20, count: -9 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:437 panic(ffffffff83406ed4) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bd161e8,400000000000,400000011000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806bd161e8,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(49,ffff80003c5aa098,4,400000000100,ffff80003c5aa0c8,0,24678e40aa1a2862,4) at kern_sysctl_dirs+0x340 sysctl_vsunlock sys/kern/kern_sysctl.c:213 [inline] kern_sysctl_dirs(49,ffff80003c5aa098,4,400000000100,ffff80003c5aa0c8,0,24678e40aa1a2862,4) at kern_sysctl_dirs+0x340 sys/kern/kern_sysctl.c:430 kern_sysctl(ffff80003c5aa094,5,400000000100,ffff80003c5aa0c8,0,37,5388e65e8acd7db5) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 sys_sysctl(ffff8000ffffa7a8,ffff80003c5aa200,ffff80003c5aa150) at sys_sysctl+0x425 syscall(ffff80003c5aa200) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5aa200) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27fb9729b20, count: 6 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83406ed4) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bd161e8,400000000000,400000011000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806bd161e8,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(49,ffff80003c5aa098,4,400000000100,ffff80003c5aa0c8,0,24678e40aa1a2862,4) at kern_sysctl_dirs+0x340 sysctl_vsunlock sys/kern/kern_sysctl.c:213 [inline] kern_sysctl_dirs(49,ffff80003c5aa098,4,400000000100,ffff80003c5aa0c8,0,24678e40aa1a2862,4) at kern_sysctl_dirs+0x340 sys/kern/kern_sysctl.c:430 kern_sysctl(ffff80003c5aa094,5,400000000100,ffff80003c5aa0c8,0,37,5388e65e8acd7db5) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 sys_sysctl(ffff8000ffffa7a8,ffff80003c5aa200,ffff80003c5aa150) at sys_sysctl+0x425 syscall(ffff80003c5aa200) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5aa200) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27fb9729b20, count: -9