panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 515383 75196 32767 0x10 0 1 syz-executor * 21963 75196 32767 0x10 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bb062) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806b39a8b0,20000000,20002000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806b39a8b0,20000000,20002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 kern_sysctl(ffff800036ff9144,2,20000100,ffff800036ff9178,0,37,33774488c3788a7e) at kern_sysctl+0x38e sysctl_vsunlock sys/kern/kern_sysctl.c:204 [inline] kern_sysctl(ffff800036ff9144,2,20000100,ffff800036ff9178,0,37,33774488c3788a7e) at kern_sysctl+0x38e sys/kern/kern_sysctl.c:502 sys_sysctl(ffff8000331956f0,ffff800036ff92b0,ffff800036ff9200) at sys_sysctl+0x422 syscall(ffff800036ff92b0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800036ff92b0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x22d1b61c9b0, count: 7 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault_unwire_locked: address not in map ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bb062) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806b39a8b0,20000000,20002000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806b39a8b0,20000000,20002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 kern_sysctl(ffff800036ff9144,2,20000100,ffff800036ff9178,0,37,33774488c3788a7e) at kern_sysctl+0x38e sysctl_vsunlock sys/kern/kern_sysctl.c:204 [inline] kern_sysctl(ffff800036ff9144,2,20000100,ffff800036ff9178,0,37,33774488c3788a7e) at kern_sysctl+0x38e sys/kern/kern_sysctl.c:502 sys_sysctl(ffff8000331956f0,ffff800036ff92b0,ffff800036ff9200) at sys_sysctl+0x422 syscall(ffff800036ff92b0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800036ff92b0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x22d1b61c9b0, count: -8 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800036ff8df0 rbx 0xffffffff83452d87 cpu_info_full_primary+0x2d87 rdx 0 rcx 0xffff8000331956f0 rax 0xffffffff83451ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa2cb7188c2a8ae9 r11 0xc81b53f4a1847d9 r12 0xffffffff83452b88 cpu_info_full_primary+0x2b88 r13 0 r14 0 r15 0x1 rip 0xffffffff82216ee5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800036ff8de0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=21963 pid=75196 tcnt=3 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800033194cd0,0xffff800033194038 process=0xffff8000ffff0018 user=0xffff800036ff4000, vmspace=0xfffffd806b39a8b0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 75196 515383 70651 32767 7 0x10 syz-executor *75196 21963 70651 32767 7 0x4000010 syz-executor 75196 144309 70651 32767 2 0x4000010 syz-executor 5095 37211 82818 32767 2 0x10 syz-executor 3199 378779 56208 32767 2 0x10 syz-executor 3199 237703 56208 32767 3 0x4000090 fsleep syz-executor 3199 39200 56208 32767 3 0x4000090 kqsel syz-executor 71791 34173 40916 32767 3 0x90 nanoslp syz-executor 71791 395618 40916 32767 3 0x4000090 fsleep syz-executor 71791 222046 40916 32767 3 0x4000090 kqsel syz-executor 71791 276560 40916 32767 3 0x4000090 fsleep syz-executor 72041 284481 30175 32767 3 0x90 nanoslp syz-executor 72041 446884 30175 32767 3 0x4000090 sbwait syz-executor 72041 335919 30175 32767 3 0x4000090 fsleep syz-executor 54597 185971 52004 32767 3 0x90 nanoslp syz-executor 54597 430978 52004 32767 3 0x4000090 nanoslp syz-executor 54597 209256 52004 32767 3 0x4000090 fsleep syz-executor 46261 172146 88280 32767 3 0x90 nanoslp syz-executor 46261 75807 88280 32767 3 0x4000090 netcon syz-executor 46261 167575 88280 32767 3 0x4000090 fsleep syz-executor 52004 487009 37003 32767 3 0x90 nanoslp syz-executor 37003 276149 1725 0 3 0x82 wait syz-executor 3753 262185 70615 32767 2 0x10 syz-executor 70615 130379 1725 0 3 0x82 wait syz-executor 30175 149399 22762 32767 3 0x90 nanoslp syz-executor 22762 41584 1725 0 3 0x82 wait syz-executor 82818 131351 60993 32767 3 0x90 nanoslp syz-executor 60993 430670 1725 0 3 0x82 wait syz-executor 56208 492309 96265 32767 3 0x90 nanoslp syz-executor 96265 326624 1725 0 3 0x82 wait syz-executor 88280 193509 28882 32767 3 0x90 nanoslp syz-executor 28882 487179 1725 0 3 0x82 wait syz-executor 70651 33488 60707 32767 3 0x90 nanoslp syz-executor 60707 229546 1725 0 3 0x82 wait syz-executor 40916 437654 13321 32767 3 0x90 nanoslp syz-executor 13321 398475 1725 0 3 0x82 wait syz-executor 8524 367663 39589 32767 3 0x3810 suspend syz-executor 8524 44504 39589 32767 4 0x4081810 syz-executor 39589 476417 1 32767 3 0x90 wait syz-executor 54353 146984 0 0 3 0x14200 bored sosplice 1725 198914 8792 0 3 0x82 kqread syz-executor 8792 213988 55350 0 3 0x10008a sigsusp ksh 55350 168991 11107 0 3 0x98 kqread sshd-session 11107 25503 22789 0 3 0x92 kqread sshd-session 22767 48784 1 0 3 0x100083 ttyin getty 22789 443897 1 0 3 0x88 kqread sshd 93882 419911 63304 73 3 0x1100090 kqread syslogd 63304 233564 1 0 3 0x100082 sbwait syslogd 21083 219923 1 0 3 0x100080 kqread resolvd 97307 241931 41136 77 3 0x100092 kqread dhcpleased 13454 263331 41136 77 3 0x100092 kqread dhcpleased 41136 255538 1 0 3 0x80 kqread dhcpleased 39080 506813 0 0 3 0x14200 bored smr 10556 125948 0 0 2 0x14200 zerothread 83873 191451 0 0 3 0x14200 aiodoned aiodoned 76119 366086 0 0 3 0x14200 syncer update 74092 313706 0 0 3 0x14200 cleaner cleaner 83420 28707 0 0 3 0x14200 reaper reaper 98075 405840 0 0 3 0x14200 pgdaemon pagedaemon 74344 182757 0 0 3 0x14200 bored viomb 26370 85794 0 0 3 0x40014200 acpi0 acpi0 31100 500406 0 0 3 0x40014200 idle1 50763 125219 0 0 3 0x14200 bored softnet3 77483 398735 0 0 3 0x14200 bored softnet2 94457 19943 0 0 3 0x14200 bored softnet1 14901 460792 0 0 3 0x14200 bored softnet0 57076 187055 0 0 3 0x14200 bored systqmp 22217 149125 0 0 3 0x14200 bored systq 28516 287311 0 0 3 0x14200 tmoslp softclockmp 8007 442433 0 0 3 0x40014200 tmoslp softclock 60287 464867 0 0 3 0x40014200 idle0 1 228267 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 75196 (syz-executor) thread 0xffff8000331956f0 (21963) shared rwlock vmmaplk r = 0 (0xfffffd806b39a9a0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1622 #3 kern_sysctl+0x38e sysctl_vsunlock sys/kern/kern_sysctl.c:204 [inline] #3 kern_sysctl+0x38e sys/kern/kern_sysctl.c:502 #4 sys_sysctl+0x422 #5 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff834fe560) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1622 #6 kern_sysctl+0x38e sysctl_vsunlock sys/kern/kern_sysctl.c:204 [inline] #6 kern_sysctl+0x38e sys/kern/kern_sysctl.c:502 #7 sys_sysctl+0x422 #8 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff834bd090) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:176 #3 kern_sysctl+0x1b3 sys/kern/kern_sysctl.c:498 #4 sys_sysctl+0x422 #5 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 3753 (syz-executor) thread 0xffff800036ffefa8 (262185) exclusive rrwlock inode r = 0 (0xfffffd8075d42928) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80553a5818) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10244 14127K 14131K 166960K 13934 0 pcb 17 28K 32K 166960K 29 0 rtable 236 6K 7K 166960K 30920 0 pf 31 16K 16K 166960K 1785 0 ifaddr 42 15K 19K 166960K 3527 0 ifgroup 50 2K 2K 166960K 3544 0 sysctl 4 1K 5K 166960K 32 0 counters 64 36K 36K 166960K 1804 0 ioctlops 0 0K 2K 166960K 2114 0 iov 0 0K 36K 166960K 5758 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1468 92K 92K 166960K 24713 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 1140 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 2511 0 dirhash 30 5K 6K 166960K 1737 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 27 101K 157K 166960K 61444 0 sigio 0 0K 0K 166960K 1983 0 proc 58 79K 176K 166960K 30364 0 subproc 117 7K 12K 166960K 12389 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 15358 0 in_multi 99 7K 7K 166960K 11913 0 ether_multi 1 0K 0K 166960K 370 0 mrt 1 0K 0K 166960K 16 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 403 1791K 1791K 166960K 403 0 exec 0 0K 1K 166960K 23019 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 289 84K 131K 166960K 535507 0 UVM aobj 132 6K 8K 166960K 151 0 pinsyscall 48 96K 126K 166960K 88355 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 4621 0 NDP 11 0K 2K 166960K 2629 0 temp 79 6824K 6954K 166960K 483408 0 kqueue 14 22K 40K 166960K 10076 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 9384 0 9380 56 54 2 3 0 8 1 rtentry 112 10273 0 10162 11 7 4 4 0 8 0 unpcb 144 63502 0 63482 244 236 8 11 0 8 6 syncache 336 994 0 994 37 36 1 1 0 8 1 tcpqe 32 393 0 393 58 57 1 1 0 8 1 tcpcb 808 39763 0 39735 391 378 13 22 0 8 8 arp 120 1785 0 1767 1 0 1 1 0 8 0 ipq 40 259 0 259 5 4 1 1 0 8 1 ipqe 40 3437 0 3437 5 4 1 1 0 8 1 inpcb 336 91173 0 91140 393 381 12 23 0 8 6 ip6q 72 13 0 13 12 12 0 1 0 8 0 ip6af 40 25 0 25 12 12 0 1 0 8 0 nd6 136 3217 0 3192 16 14 2 2 0 8 0 kcovpl 48 953 0 944 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 41714 0 41244 210 180 30 33 0 8 0 art_table 32 41715 0 41244 13 8 5 5 0 8 0 art_node 16 10272 0 10171 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 14 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 2508 0 2498 1 0 1 1 0 8 0 shmpl 112 148 0 20 4 0 4 4 0 8 0 dirhash 1024 1182 0 1145 21 16 5 5 0 8 0 dino2pl 256 82500 0 77658 306 3 303 303 0 8 0 ffsino 272 82500 0 77658 325 1 324 324 0 8 0 nchpl 144 150519 0 147330 119 0 119 119 0 8 0 uvmvnodes 80 11601 0 0 237 0 237 237 0 8 0 vnodes 216 11601 0 0 645 0 645 645 0 8 0 namei 1024 655262 0 655261 64 62 2 2 0 8 1 percpumem 16 916 0 870 1 0 1 1 0 8 0 kstatmem 264 1762 0 1740 2 0 2 2 0 8 0 scxspl 216 586136 0 586136 124 121 3 8 1 8 3 plimitpl 152 20813 0 20785 2 0 2 2 0 8 0 sigapl 424 60505 0 60447 23 16 7 9 0 8 0 futexpl 64 736854 0 736848 30 29 1 1 0 8 0 knotepl 120 2424 0 0 26 0 26 26 0 8 0 kqueuepl 216 22429 0 22416 178 175 3 12 0 8 2 pipepl 320 12348 0 12318 167 163 4 12 0 8 1 fdescpl 496 60486 0 60447 21 15 6 7 0 8 0 filepl 152 454899 0 454629 273 255 18 27 0 8 4 lockfpl 104 16471 0 16469 6 5 1 2 0 8 0 lockfspl 48 4713 0 4711 1 0 1 1 0 8 0 sessionpl 144 1562 0 1545 1 0 1 1 0 8 0 pgrppl 48 3749 0 3724 1 0 1 1 0 8 0 ucredpl 104 93630 0 93610 1 0 1 1 0 8 0 zombiepl 144 60447 0 60447 1 0 1 1 0 8 1 processpl 1160 60505 0 60447 9 4 5 6 0 8 0 procpl 648 143590 0 143518 16 9 7 7 0 8 0 srpgc 96 18 0 18 9 9 0 1 0 8 0 sosppl 168 688 0 685 26 25 1 1 0 8 0 sockpl 664 166013 0 165950 592 575 17 29 0 8 8 mcl64k 65536 116 0 0 5 2 3 4 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 25 0 0 3 0 3 3 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 7 0 0 1 0 1 1 0 8 0 mcl2k 2048 896 0 0 34 12 22 33 0 8 0 mtagpl 96 67 0 0 2 0 2 2 0 8 0 mbufpl 256 9872 0 0 515 1 514 514 0 8 0 bufpl 280 102659 0 91024 832 0 832 832 0 8 0 anonpl 24 7369020 0 7351369 666 530 136 156 0 185 3 amapchunkpl 152 1742212 0 1741339 449 408 41 52 0 158 0 amappl16 200 173988 0 173347 569 520 49 59 0 8 2 amappl15 192 23 0 23 12 12 0 1 0 8 0 amappl14 184 3221 0 3210 1 0 1 1 0 8 0 amappl13 176 97 0 97 48 48 0 1 0 8 0 amappl12 168 75637 0 75597 32 30 2 3 0 8 0 amappl11 160 53 0 42 1 0 1 1 0 8 0 amappl10 152 10 0 9 2 1 1 1 0 8 0 amappl9 144 122 0 121 2 1 1 1 0 8 0 amappl8 136 21 0 18 1 0 1 1 0 8 0 amappl7 128 2581 0 2570 1 0 1 1 0 8 0 amappl6 120 8848 0 8846 1 0 1 1 0 8 0 amappl5 112 4288 0 4278 1 0 1 1 0 8 0 amappl4 104 5757 0 5742 1 0 1 1 0 8 0 amappl3 96 360118 0 359981 6 1 5 5 0 8 0 amappl2 88 20688 0 20623 5 2 3 3 0 8 0 amappl1 80 414578 0 414022 49 35 14 19 0 8 0 amappl 88 520520 0 520287 7 1 6 6 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 72 150 0 19 3 0 3 3 0 8 0 uaddrrnd 24 60486 0 60447 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 60486 0 60447 1 0 1 1 0 8 0 vmmpekpl 168 543302 0 543227 5 0 5 5 0 8 0 vmmpepl 168 4016429 0 4013680 561 412 149 156 0 357 6 vmsppl 440 60485 0 60447 7 2 5 6 0 8 0 rwobjpl 56 1032311 0 1019055 256 65 191 191 0 8 1 pdppl 4096 120979 0 120894 1921 1832 89 113 0 8 4 pvpl 32 47074 0 0 374 0 374 374 0 265 0 pmappl 248 60485 0 60447 18 15 3 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 4231 0 2906 38 0 38 38 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bb062) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806b39a8b0,20000000,20002000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806b39a8b0,20000000,20002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 kern_sysctl(ffff800036ff9144,2,20000100,ffff800036ff9178,0,37,33774488c3788a7e) at kern_sysctl+0x38e sysctl_vsunlock sys/kern/kern_sysctl.c:204 [inline] kern_sysctl(ffff800036ff9144,2,20000100,ffff800036ff9178,0,37,33774488c3788a7e) at kern_sysctl+0x38e sys/kern/kern_sysctl.c:502 sys_sysctl(ffff8000331956f0,ffff800036ff92b0,ffff800036ff9200) at sys_sysctl+0x422 syscall(ffff800036ff92b0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800036ff92b0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x22d1b61c9b0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) 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(ffffffff834fe358) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff834fe358) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff800036fa7a00) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800036fa7a00) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76a344da6ba0, count: 9 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) 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(ffffffff834fe358) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff834fe358) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff800036fa7a00) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800036fa7a00) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76a344da6ba0, count: -6