panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 514681 70044 0 0 0 0 syz-executor *459744 70044 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830c7a73) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c332018,20000000,20011000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1694 uvm_fault_unwire(fffffd806c332018,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1657 kern_sysctl(ffff800037289894,5,20000100,ffff8000372898c8,0,37,200cb3fbf0770bc2) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff800037289894,5,20000100,ffff8000372898c8,0,37,200cb3fbf0770bc2) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff8000371d3998,ffff800037289a00,ffff800037289950) at sys_sysctl+0x425 syscall(ffff800037289a00) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff800037289a00) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x32cfcfdd650, 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(ffffffff830c7a73) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c332018,20000000,20011000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1694 uvm_fault_unwire(fffffd806c332018,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1657 kern_sysctl(ffff800037289894,5,20000100,ffff8000372898c8,0,37,200cb3fbf0770bc2) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff800037289894,5,20000100,ffff8000372898c8,0,37,200cb3fbf0770bc2) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff8000371d3998,ffff800037289a00,ffff800037289950) at sys_sysctl+0x425 syscall(ffff800037289a00) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff800037289a00) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x32cfcfdd650, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800037289550 rbx 0xffff800029b7cdbf rdx 0 rcx 0xffff8000371d3998 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x45a59a454d28ab45 r11 0xe884a089b4fc45da r12 0xffff800029b7cbc0 r13 0 r14 0 r15 0x1 rip 0xffffffff81610e15 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800037289540 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=459744 pid=70044 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=36, usrpri=86, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000371d2048,0xffff8000371d3c30 process=0xffff80003727f660 user=0xffff800037284000, vmspace=0xfffffd806c332018 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 43260 57485 75747 0 2 0 syz-executor 15446 40575 51600 0 2 0 syz-executor 70044 514681 90861 0 7 0 syz-executor 70044 305306 90861 0 2 0x4000080 syz-executor *70044 459744 90861 0 7 0x4000000 syz-executor 70044 420320 90861 0 3 0x4000080 fsleep syz-executor 5570 500603 88068 0 2 0 syz-executor 5570 153670 88068 0 3 0x4000080 fsleep syz-executor 32367 309777 55324 0 2 0 syz-executor 32367 14616 55324 0 3 0x4000080 fsleep syz-executor 32367 126271 55324 0 3 0x4000080 fsleep syz-executor 29782 108516 43735 0 2 0 syz-executor 29782 464899 43735 0 2 0x4000000 syz-executor 29782 8422 43735 0 3 0x4000080 fsleep syz-executor 29782 82020 43735 0 3 0x4000080 fsleep syz-executor 21506 104596 12322 0 2 0x1000000 syz-executor 21506 43634 12322 0 3 0x5000080 fsleep syz-executor 21506 385221 12322 0 3 0x5000080 fsleep syz-executor 91508 467235 1035 0 2 0 syz-executor 91508 92481 1035 0 3 0x4000080 kqsel syz-executor 91508 393080 1035 0 3 0x4000080 kqsel syz-executor 91508 371883 1035 0 2 0x4000000 syz-executor 75747 247762 92801 0 3 0x82 nanoslp syz-executor 1035 296991 92801 0 3 0x82 nanoslp syz-executor 12322 334089 92801 0 3 0x82 nanoslp syz-executor 90861 351054 92801 0 3 0x82 nanoslp syz-executor 25473 273713 0 0 3 0x14280 nfsidl nfsio 4903 375430 0 0 3 0x14280 nfsidl nfsio 21188 321785 0 0 3 0x14280 nfsidl nfsio 69188 123044 0 0 3 0x14280 nfsidl nfsio 30228 432825 0 0 3 0x14280 nfsidl nfsio 42620 278529 0 0 3 0x14280 nfsidl nfsio 16472 57837 0 0 3 0x14280 nfsidl nfsio 86774 75203 0 0 3 0x14280 nfsidl nfsio 97941 84161 0 0 3 0x14280 nfsidl nfsio 81114 3018 0 0 3 0x14280 nfsidl nfsio 99558 20064 0 0 3 0x14280 nfsidl nfsio 97908 261219 0 0 3 0x14280 nfsidl nfsio 94316 300546 0 0 3 0x14280 nfsidl nfsio 98022 301236 0 0 3 0x14280 nfsidl nfsio 53567 329978 0 0 3 0x14280 nfsidl nfsio 89952 489396 0 0 3 0x14280 nfsidl nfsio 30022 122284 0 0 3 0x14280 nfsidl nfsio 11639 285562 0 0 3 0x14280 nfsidl nfsio 76666 63602 0 0 3 0x14280 nfsidl nfsio 584 271598 0 0 3 0x14280 nfsidl nfsio 39870 22931 0 0 3 0x14200 bored sosplice 55324 358333 92801 0 3 0x82 nanoslp syz-executor 51600 407720 92801 0 3 0x82 nanoslp syz-executor 88068 127339 92801 0 3 0x82 nanoslp syz-executor 43735 211747 92801 0 3 0x82 nanoslp syz-executor 92801 329257 71374 0 2 0x2 syz-executor 71374 1007 15914 0 3 0x10008a sigsusp ksh 15914 470506 87921 0 3 0x98 kqread sshd-session 87921 46175 65556 0 3 0x92 kqread sshd-session 79128 296775 1 0 3 0x100083 ttyin getty 65556 301294 1 0 3 0x88 kqread sshd 63472 194539 9779 74 3 0x1100092 bpf pflogd 9779 8157 1 0 3 0x80 sbwait pflogd 9832 372690 82943 73 3 0x1100090 kqread syslogd 82943 501887 1 0 3 0x100082 sbwait syslogd 38483 295687 1 0 3 0x100080 kqread resolvd 21208 466612 90846 77 3 0x100092 kqread dhcpleased 85690 34567 90846 77 3 0x100092 kqread dhcpleased 90846 400561 1 0 3 0x80 kqread dhcpleased 57890 338176 0 0 3 0x14200 bored smr 19848 389538 0 0 2 0x14200 zerothread 20433 309149 0 0 3 0x14200 aiodoned aiodoned 3938 130854 0 0 3 0x14200 syncer update 79674 19344 0 0 3 0x14200 cleaner cleaner 12641 519770 0 0 3 0x14200 reaper reaper 45202 129525 0 0 3 0x14200 pgdaemon pagedaemon 11105 140229 0 0 3 0x14200 bored viomb 69455 341195 0 0 3 0x40014200 acpi0 acpi0 12320 155734 0 0 3 0x40014200 idle1 17635 16112 0 0 3 0x14200 bored softnet3 30834 302572 0 0 3 0x14200 bored softnet2 38252 358834 0 0 3 0x14200 bored softnet1 86012 17441 0 0 3 0x14200 bored softnet0 21329 49685 0 0 3 0x14200 bored systqmp 27962 156830 0 0 3 0x14200 bored systq 69702 429740 0 0 3 0x14200 tmoslp softclockmp 51128 89333 0 0 3 0x40014200 tmoslp softclock 46801 34563 0 0 3 0x40014200 idle0 1 220658 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 70044 (syz-executor) thread 0xffff8000371d3998 (459744) shared rwlock vmmaplk r = 0 (0xfffffd806c332110) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1656 #2 kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] #2 kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 #3 sys_sysctl+0x425 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8359d538) #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+0x2f2 sys/kern/kern_synch.c:425 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1819 #6 uvm_fault_check+0x49 sys/uvm/uvm_fault.c:672 #7 uvm_fault+0xf5 sys/uvm/uvm_fault.c:600 #8 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 #9 kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 #10 alltraps_kern_meltdown+0x7b #11 copyout+0x62 #12 kern_sysctl+0x492 sys/kern/kern_sysctl.c:506 #13 sys_sysctl+0x425 #14 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #14 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #15 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff834562b0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:181 #3 kern_sysctl+0x1ad sys/kern/kern_sysctl.c:504 #4 sys_sysctl+0x425 #5 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #5 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10225 11139K 11656K 166960K 12982 0 pcb 17 16K 18K 166960K 361 0 rtable 217 7K 8K 166960K 639 0 pf 37 18K 26K 166960K 95 0 ifaddr 44 7K 8K 166960K 91 0 ifgroup 60 2K 2K 166960K 115 0 sysctl 4 1K 1K 166960K 8 0 counters 66 36K 36K 166960K 100 0 ioctlops 0 0K 4K 166960K 1632 0 iov 0 0K 16K 166960K 166 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1459 92K 92K 166960K 2649 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 22 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 59 0 dirhash 12 2K 2K 166960K 51 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 18 65K 89K 166960K 1327 0 sigio 0 0K 0K 166960K 53 0 proc 72 91K 128K 166960K 771 0 subproc 104 6K 6K 166960K 157 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 145 0 in_multi 98 7K 7K 166960K 214 0 ether_multi 1 0K 0K 166960K 14 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 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 631 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 247 73K 87K 166960K 13852 0 UVM aobj 37 6K 6K 166960K 41 0 pinsyscall 43 86K 104K 166960K 2530 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 104 0 NDP 13 0K 2K 166960K 58 0 temp 77 6828K 7070K 166960K 46299 0 kqueue 13 20K 31K 166960K 212 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 120 145 0 142 2 1 1 2 0 8 0 rtentry 112 196 0 98 4 0 4 4 0 8 0 unpcb 144 763 0 744 9 5 4 4 0 8 3 syncache 336 7 0 7 1 1 0 1 0 8 0 tcpqe 32 10 0 10 1 1 0 1 0 8 0 tcpcb 808 414 0 407 10 6 4 4 0 8 3 arp 120 32 0 14 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 336 1417 0 1401 14 11 3 10 0 8 1 nd6 136 46 0 20 2 0 2 2 0 8 1 pkpcb 40 9 0 9 4 3 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1168 11 0 11 2 1 1 1 0 8 1 pffrag 232 13 0 1 1 0 1 1 0 482 0 pffrnode 88 13 0 1 1 0 1 1 0 8 0 pffrent 40 21 0 9 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 24 103 0 25 1 0 1 1 0 8 0 pfstkey 128 103 0 25 3 0 3 3 0 8 0 pfstate 376 103 0 25 8 0 8 8 0 8 0 pfrule 1344 21 0 15 2 0 2 2 0 8 0 art_heap8 4096 3 0 1 3 1 2 3 0 8 0 art_heap4 256 901 0 485 36 6 30 30 0 8 3 art_table 32 904 0 486 4 0 4 4 0 8 0 art_node 16 193 0 106 1 0 1 1 0 8 0 sysvmsgpl 40 28 0 16 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 54 0 44 1 0 1 1 0 8 0 shmpl 112 38 0 4 1 0 1 1 0 8 0 dirhash 1024 44 0 27 3 0 3 3 0 8 0 dino2pl 256 3870 0 2361 96 0 96 96 0 8 0 ffsino 272 3870 0 2361 102 0 102 102 0 8 0 nchpl 144 5799 0 5198 63 40 23 63 0 8 0 uvmvnodes 80 4717 0 0 97 0 97 97 0 8 0 vnodes 216 4717 0 0 263 0 263 263 0 8 0 namei 1024 19681 0 19681 3 2 1 2 0 8 1 percpumem 16 64 0 17 1 0 1 1 0 8 0 kstatmem 264 60 0 34 2 0 2 2 0 8 0 scsiplug 72 5 0 5 1 1 0 1 0 8 0 scxspl 216 18329 0 18329 11 9 2 8 1 8 2 plimitpl 152 221 0 204 1 0 1 1 0 8 0 sigapl 424 1647 0 1576 11 2 9 9 0 8 0 futexpl 64 18360 0 18352 1 0 1 1 0 8 0 knotepl 120 544 0 0 17 0 17 17 0 8 0 kqueuepl 216 366 0 354 3 2 1 3 0 8 0 pipepl 320 245 0 218 3 0 3 3 0 8 0 fdescpl 496 1606 0 1574 5 0 5 5 0 8 0 filepl 152 10346 0 10094 23 7 16 18 0 8 5 lockfpl 104 434 0 431 2 1 1 2 0 8 0 lockfspl 48 154 0 151 1 0 1 1 0 8 0 sessionpl 144 30 0 21 1 0 1 1 0 8 0 pgrppl 48 48 0 31 1 0 1 1 0 8 0 ucredpl 104 2149 0 2136 1 0 1 1 0 8 0 zombiepl 144 1576 0 1576 1 0 1 1 0 8 1 processpl 1160 1647 0 1576 6 0 6 6 0 8 0 procpl 648 3500 0 3415 10 2 8 8 0 8 0 srpgc 96 11 0 11 2 2 0 1 0 8 0 sosppl 168 10 0 10 2 1 1 1 0 8 1 sockpl 664 2350 0 2315 24 15 9 12 0 8 5 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 132 0 0 17 0 17 17 0 8 0 mcl2k 2048 107 0 0 13 0 13 13 0 8 0 mtagpl 96 27 0 0 1 0 1 1 0 8 0 mbufpl 256 1187 0 0 75 0 75 75 0 8 0 bufpl 280 6582 0 408 442 0 442 442 0 8 0 anonpl 24 253638 0 249422 104 39 65 75 0 185 29 amapchunkpl 152 45059 0 44505 42 16 26 31 0 158 3 amappl16 200 6020 0 5985 62 51 11 27 0 8 8 amappl15 192 29 0 29 2 2 0 1 0 8 0 amappl14 184 148 0 135 1 0 1 1 0 8 0 amappl13 176 15 0 15 2 2 0 1 0 8 0 amappl12 168 2324 0 2293 3 1 2 2 0 8 0 amappl11 160 54 0 40 1 0 1 1 0 8 0 amappl10 152 10 0 10 1 1 0 1 0 8 0 amappl9 144 171 0 170 2 1 1 1 0 8 0 amappl8 136 22 0 19 1 0 1 1 0 8 0 amappl7 128 120 0 107 1 0 1 1 0 8 0 amappl6 120 208 0 206 1 0 1 1 0 8 0 amappl5 112 155 0 142 1 0 1 1 0 8 0 amappl4 104 334 0 314 1 0 1 1 0 8 0 amappl3 96 8199 0 8100 3 0 3 3 0 8 0 amappl2 88 1911 0 1825 3 0 3 3 0 8 0 amappl1 80 12297 0 11735 14 0 14 14 0 8 0 amappl 88 13326 0 13142 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 40 0 4 1 0 1 1 0 8 0 uaddrrnd 24 1606 0 1574 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1606 0 1574 1 0 1 1 0 8 0 vmmpekpl 168 13155 0 13099 4 0 4 4 0 8 0 vmmpepl 168 103736 0 101812 111 15 96 103 0 357 6 vmsppl 448 1605 0 1574 6 2 4 5 0 8 0 rwobjpl 56 34394 0 28689 84 3 81 81 0 8 0 pdppl 4096 3219 0 3148 115 44 71 85 0 8 0 pvpl 32 19469 0 0 157 0 157 157 0 265 0 pmappl 248 1605 0 1574 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 502 0 76 14 1 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8349fff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff8359d330) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359d330) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x74b5e28df250, count: 8 ddb{0}> trace x86_ipi_db(ffffffff8349fff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff8359d330) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359d330) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x74b5e28df250, count: -7 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(ffffffff830c7a73) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c332018,20000000,20011000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1694 uvm_fault_unwire(fffffd806c332018,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1657 kern_sysctl(ffff800037289894,5,20000100,ffff8000372898c8,0,37,200cb3fbf0770bc2) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff800037289894,5,20000100,ffff8000372898c8,0,37,200cb3fbf0770bc2) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff8000371d3998,ffff800037289a00,ffff800037289950) at sys_sysctl+0x425 syscall(ffff800037289a00) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff800037289a00) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x32cfcfdd650, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830c7a73) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c332018,20000000,20011000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1694 uvm_fault_unwire(fffffd806c332018,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1657 kern_sysctl(ffff800037289894,5,20000100,ffff8000372898c8,0,37,200cb3fbf0770bc2) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff800037289894,5,20000100,ffff8000372898c8,0,37,200cb3fbf0770bc2) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff8000371d3998,ffff800037289a00,ffff800037289950) at sys_sysctl+0x425 syscall(ffff800037289a00) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff800037289a00) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x32cfcfdd650, count: -8