panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *355356 45394 0 0 0x4000000 1K syz-executor 139131 76435 0 0 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830d1b33) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bf0d3a8,20000000,20011000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1694 uvm_fault_unwire(fffffd806bf0d3a8,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1657 kern_sysctl(ffff8000371d7f74,5,20000100,ffff8000371d7fa8,0,37,ff8d59c8b9c3f70b) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff8000371d7f74,5,20000100,ffff8000371d7fa8,0,37,ff8d59c8b9c3f70b) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff8000ffff0a48,ffff8000371d80e0,ffff8000371d8030) at sys_sysctl+0x425 syscall(ffff8000371d80e0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371d80e0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf94dd5bf410, 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{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(ffffffff830d1b33) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bf0d3a8,20000000,20011000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1694 uvm_fault_unwire(fffffd806bf0d3a8,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1657 kern_sysctl(ffff8000371d7f74,5,20000100,ffff8000371d7fa8,0,37,ff8d59c8b9c3f70b) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff8000371d7f74,5,20000100,ffff8000371d7fa8,0,37,ff8d59c8b9c3f70b) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff8000ffff0a48,ffff8000371d80e0,ffff8000371d8030) at sys_sysctl+0x425 syscall(ffff8000371d80e0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371d80e0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf94dd5bf410, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000371d7c30 rbx 0xffff800029b7cdbf rdx 0 rcx 0xffff8000ffff0a48 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xe210133983aeb402 r11 0x4b0bd8c292c84b62 r12 0xffff800029b7cbc0 r13 0 r14 0 r15 0x1 rip 0xffffffff81668fa5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000371d7c20 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=355356 pid=45394 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=36, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff16f0,0xffff8000ffffd1d8 process=0xffff8000fffecdb8 user=0xffff8000371d3000, vmspace=0xfffffd806bf0d3a8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 45394 375556 8942 0 2 0 syz-executor *45394 355356 8942 0 7 0x4000000 syz-executor 45394 450688 8942 0 2 0x4000000 syz-executor 36706 226157 43141 0 2 0 syz-executor 36706 37231 43141 0 2 0x4000000 syz-executor 76435 448619 36603 0 3 0x80 fsleep syz-executor 76435 139131 36603 0 7 0x4000000 syz-executor 76435 231593 36603 0 3 0x4000080 fsleep syz-executor 7615 146295 13529 0 3 0x80 fsleep syz-executor 7615 162303 13529 0 3 0x4000080 rest syz-executor 55903 271130 64117 0 3 0x80 fsleep syz-executor 55903 511379 64117 0 3 0x4000080 nanoslp syz-executor 63967 273417 46992 0 3 0x80 fsleep syz-executor 63967 273191 46992 0 3 0x4000080 sbwait syz-executor 85127 267070 36697 0 3 0x80 fsleep syz-executor 85127 427907 36697 0 3 0x4000080 lockf syz-executor 85127 68476 36697 0 3 0x4000080 lockf syz-executor 64117 504092 95641 0 3 0x82 nanoslp syz-executor 46173 111856 0 0 3 0x14200 bored sosplice 36697 416615 95641 0 3 0x82 nanoslp syz-executor 36603 403232 95641 0 3 0x82 nanoslp syz-executor 32899 233341 95641 0 3 0x82 wait syz-executor 43141 206862 95641 0 3 0x82 nanoslp syz-executor 13529 211247 95641 0 3 0x82 nanoslp syz-executor 46992 457703 95641 0 3 0x82 nanoslp syz-executor 8942 109054 95641 0 3 0x82 nanoslp syz-executor 95641 316820 78512 0 3 0x82 kqread syz-executor 78512 222522 57853 0 3 0x10008a sigsusp ksh 57853 382472 52992 0 3 0x98 kqread sshd-session 52992 492582 59235 0 3 0x92 kqread sshd-session 55839 432032 1 0 3 0x100083 ttyin getty 59235 448384 1 0 3 0x88 kqread sshd 14004 75065 31568 74 3 0x1100092 bpf pflogd 31568 129282 1 0 3 0x80 sbwait pflogd 96169 344947 15672 73 3 0x1100090 kqread syslogd 15672 69323 1 0 3 0x100082 sbwait syslogd 19720 495256 1 0 3 0x100080 kqread resolvd 6739 119606 29386 77 3 0x100092 kqread dhcpleased 90041 464297 29386 77 3 0x100092 kqread dhcpleased 29386 102390 1 0 3 0x80 kqread dhcpleased 65071 63903 0 0 3 0x14200 bored smr 12621 299654 0 0 3 0x14200 pgzero zerothread 26195 403919 0 0 3 0x14200 aiodoned aiodoned 33019 126665 0 0 3 0x14200 syncer update 48956 109823 0 0 3 0x14200 cleaner cleaner 45156 428210 0 0 3 0x14200 reaper reaper 48642 217334 0 0 3 0x14200 pgdaemon pagedaemon 46194 287098 0 0 3 0x14200 bored viomb 78109 66238 0 0 3 0x40014200 acpi0 acpi0 28198 318774 0 0 3 0x40014200 idle1 38781 269470 0 0 3 0x14200 bored softnet3 58048 501842 0 0 3 0x14200 bored softnet2 50885 359569 0 0 3 0x14200 bored softnet1 445 97031 0 0 3 0x14200 bored softnet0 16081 505153 0 0 3 0x14200 bored systqmp 48326 372692 0 0 3 0x14200 bored systq 70837 254935 0 0 3 0x14200 tmoslp softclockmp 63543 35106 0 0 3 0x40014200 tmoslp softclock 23930 142029 0 0 3 0x40014200 idle0 1 421281 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 45394 (syz-executor) thread 0xffff8000ffff0a48 (355356) Process 76435 (syz-executor) thread 0xffff8000ffff0f58 (139131) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10216 11208K 15336K 166960K 11908 0 pcb 17 16K 18K 166960K 273 0 rtable 248 8K 8K 166960K 470 0 pf 35 17K 19K 166960K 65 0 ifaddr 42 7K 7K 166960K 62 0 ifgroup 55 2K 2K 166960K 79 0 sysctl 4 1K 1K 166960K 4 0 counters 64 36K 36K 166960K 78 0 ioctlops 0 0K 4K 166960K 1554 0 iov 0 0K 24K 166960K 30 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1363 86K 87K 166960K 1938 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 133 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 18 65K 93K 166960K 672 0 sigio 0 0K 0K 166960K 15 0 proc 72 91K 140K 166960K 620 0 subproc 104 6K 6K 166960K 117 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 284 0 in_multi 95 7K 7K 166960K 143 0 ether_multi 1 0K 0K 166960K 4 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 163 731K 731K 166960K 163 0 exec 0 0K 1K 166960K 487 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 250 77K 87K 166960K 8124 0 UVM aobj 25 2K 2K 166960K 26 0 pinsyscall 43 86K 105K 166960K 1782 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 24 0 NDP 12 0K 2K 166960K 41 0 temp 75 6828K 6894K 166960K 28993 0 kqueue 15 22K 30K 166960K 124 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 120 137 0 134 3 2 1 3 0 8 0 rtentry 112 150 0 36 4 0 4 4 0 8 0 unpcb 144 349 0 330 3 1 2 2 0 8 1 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 808 240 0 232 4 0 4 4 0 8 3 arp 120 24 0 5 1 0 1 1 0 8 0 inpcb 336 1111 0 1100 26 17 9 17 0 8 8 nd6 136 32 0 7 1 0 1 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1168 3 0 3 3 2 1 1 0 8 1 pffrag 232 7 0 0 1 0 1 1 0 482 0 pffrnode 88 7 0 0 1 0 1 1 0 8 0 pffrent 40 7 0 0 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 52 0 17 1 0 1 1 0 8 0 pfstkey 128 52 0 17 2 0 2 2 0 8 0 pfstate 376 52 0 17 5 0 5 5 0 8 0 pfrule 1344 25 0 19 2 0 2 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 624 0 154 32 0 32 32 0 8 2 art_table 32 626 0 154 5 0 5 5 0 8 1 art_node 16 147 0 44 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 130 0 120 1 0 1 1 0 8 0 shmpl 112 23 0 1 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2693 0 1190 95 0 95 95 0 8 0 ffsino 272 2693 0 1190 101 0 101 101 0 8 0 nchpl 144 3668 0 3155 63 0 63 63 0 8 39 uvmvnodes 80 3029 0 0 62 0 62 62 0 8 0 vnodes 216 3029 0 0 169 0 169 169 0 8 0 namei 1024 11882 0 11882 2 1 1 2 0 8 1 percpumem 16 53 0 7 1 0 1 1 0 8 0 kstatmem 264 38 0 14 2 0 2 2 0 8 0 scsiplug 72 4 0 4 2 2 0 1 0 8 0 scxspl 216 10238 0 10238 12 9 3 8 1 8 3 plimitpl 152 167 0 150 1 0 1 1 0 8 0 sigapl 424 973 0 922 7 1 6 7 0 8 0 futexpl 64 8909 0 8903 1 0 1 1 0 8 0 knotepl 120 575 0 0 17 0 17 17 0 8 0 kqueuepl 216 346 0 334 10 5 5 5 0 8 4 pipepl 320 225 0 198 3 0 3 3 0 8 0 fdescpl 496 954 0 922 6 1 5 5 0 8 0 filepl 152 6224 0 5958 24 6 18 19 0 8 6 lockfpl 104 243 0 238 1 0 1 1 0 8 0 lockfspl 48 78 0 75 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 44 0 27 1 0 1 1 0 8 0 ucredpl 104 1361 0 1346 1 0 1 1 0 8 0 zombiepl 144 1208 0 1207 1 0 1 1 0 8 0 processpl 1160 973 0 922 5 1 4 5 0 8 0 procpl 648 1938 0 1877 6 0 6 6 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 664 1608 0 1575 26 15 11 19 0 8 7 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 146 0 0 19 0 19 19 0 8 0 mcl2k 2048 35 0 0 5 0 5 5 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 227 0 0 15 0 15 15 0 8 0 bufpl 280 4249 0 99 297 0 297 297 0 8 0 anonpl 24 191310 0 187752 51 4 47 47 0 185 20 amapchunkpl 152 25991 0 25451 32 7 25 28 0 158 3 amappl16 200 4825 0 4797 24 14 10 15 0 8 8 amappl15 192 17 0 17 2 2 0 1 0 8 0 amappl14 184 121 0 109 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 1 0 1 0 8 0 amappl12 168 1620 0 1587 3 1 2 2 0 8 0 amappl11 160 57 0 43 1 0 1 1 0 8 0 amappl10 152 16 0 15 2 1 1 1 0 8 0 amappl9 144 137 0 137 1 1 0 1 0 8 0 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 113 0 100 1 0 1 1 0 8 0 amappl6 120 177 0 176 1 0 1 1 0 8 0 amappl5 112 138 0 126 1 0 1 1 0 8 0 amappl4 104 314 0 296 1 0 1 1 0 8 0 amappl3 96 4878 0 4772 3 0 3 3 0 8 0 amappl2 88 1231 0 1146 3 0 3 3 0 8 0 amappl1 80 9446 0 8876 15 1 14 14 0 8 1 amappl 88 7669 0 7483 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 128 254 0 254 2 2 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 25 0 1 1 0 1 1 0 8 0 uaddrrnd 24 955 0 923 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 955 0 923 1 0 1 1 0 8 0 vmmpekpl 168 9244 0 9204 3 0 3 3 0 8 0 vmmpepl 168 65763 0 63846 95 0 95 95 0 357 10 vmsppl 448 954 0 923 6 2 4 5 0 8 0 rwobjpl 56 24473 0 20472 59 1 58 58 0 8 1 pdppl 4096 1917 0 1846 109 38 71 85 0 8 0 pvpl 32 15126 0 0 122 0 122 122 0 265 0 pmappl 248 954 0 923 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 429 0 63 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83424ff0) 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(ffffffff835f73c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835f73c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff835f73c0,1) at __mp_acquire_count+0x58 mi_switch() at mi_switch+0x4b7 sys/kern/sched_bsd.c:441 yield() at yield+0x6a sys/kern/sched_bsd.c:320 pool_get(ffffffff83623298,9) at pool_get+0x242 sys/kern/subr_pool.c:589 falloc(ffff8000ffff0f58,ffff800034198c20,ffff800034198c2c) at falloc+0x197 fnew sys/kern/kern_descrip.c:1046 [inline] falloc(ffff8000ffff0f58,ffff800034198c20,ffff800034198c2c) at falloc+0x197 sys/kern/kern_descrip.c:1020 doopenat(ffff8000ffff0f58,ffffff9c,200000c0,206,0,ffff800034198cc0) at doopenat+0x18c sys/kern/vfs_syscalls.c:1092 syscall(ffff800034198d70) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff800034198d70) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e8eef5dc50, count: 3 ddb{0}> trace x86_ipi_db(ffffffff83424ff0) 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(ffffffff835f73c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835f73c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff835f73c0,1) at __mp_acquire_count+0x58 mi_switch() at mi_switch+0x4b7 sys/kern/sched_bsd.c:441 yield() at yield+0x6a sys/kern/sched_bsd.c:320 pool_get(ffffffff83623298,9) at pool_get+0x242 sys/kern/subr_pool.c:589 falloc(ffff8000ffff0f58,ffff800034198c20,ffff800034198c2c) at falloc+0x197 fnew sys/kern/kern_descrip.c:1046 [inline] falloc(ffff8000ffff0f58,ffff800034198c20,ffff800034198c2c) at falloc+0x197 sys/kern/kern_descrip.c:1020 doopenat(ffff8000ffff0f58,ffffff9c,200000c0,206,0,ffff800034198cc0) at doopenat+0x18c sys/kern/vfs_syscalls.c:1092 syscall(ffff800034198d70) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff800034198d70) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e8eef5dc50, count: -12 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(ffffffff830d1b33) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bf0d3a8,20000000,20011000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1694 uvm_fault_unwire(fffffd806bf0d3a8,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1657 kern_sysctl(ffff8000371d7f74,5,20000100,ffff8000371d7fa8,0,37,ff8d59c8b9c3f70b) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff8000371d7f74,5,20000100,ffff8000371d7fa8,0,37,ff8d59c8b9c3f70b) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff8000ffff0a48,ffff8000371d80e0,ffff8000371d8030) at sys_sysctl+0x425 syscall(ffff8000371d80e0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371d80e0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf94dd5bf410, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830d1b33) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bf0d3a8,20000000,20011000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1694 uvm_fault_unwire(fffffd806bf0d3a8,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1657 kern_sysctl(ffff8000371d7f74,5,20000100,ffff8000371d7fa8,0,37,ff8d59c8b9c3f70b) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff8000371d7f74,5,20000100,ffff8000371d7fa8,0,37,ff8d59c8b9c3f70b) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff8000ffff0a48,ffff8000371d80e0,ffff8000371d8030) at sys_sysctl+0x425 syscall(ffff8000371d80e0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371d80e0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf94dd5bf410, count: -8