panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *388259 51786 32767 0x10 0x4000000 0K syz-executor.0 303128 53441 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8292f067) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8063e6be20,20002000,20003000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_wire(fffffd8063e6be20,20002000,20004000,3) at uvm_fault_wire+0xd7 uvm_fault_unwire sys/uvm/uvm_fault.c:1623 [inline] uvm_fault_wire(fffffd8063e6be20,20002000,20004000,3) at uvm_fault_wire+0xd7 sys/uvm/uvm_fault.c:1605 sys_sysctl(ffff80002a1d1ff0,ffff80002c4ea620,ffff80002c4ea670) at sys_sysctl+0x2e8 sys/kern/kern_sysctl.c:245 syscall(ffff80002c4ea720) at syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002c4ea720) at syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76e92d0c260, count: 8 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+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8292f067) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8063e6be20,20002000,20003000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_wire(fffffd8063e6be20,20002000,20004000,3) at uvm_fault_wire+0xd7 uvm_fault_unwire sys/uvm/uvm_fault.c:1623 [inline] uvm_fault_wire(fffffd8063e6be20,20002000,20004000,3) at uvm_fault_wire+0xd7 sys/uvm/uvm_fault.c:1605 sys_sysctl(ffff80002a1d1ff0,ffff80002c4ea620,ffff80002c4ea670) at sys_sysctl+0x2e8 sys/kern/kern_sysctl.c:245 syscall(ffff80002c4ea720) at syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002c4ea720) at syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76e92d0c260, count: -7 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002c4ea3d0 rbx 0xffffffff82c99ba7 cpu_info_full_primary+0x2ba7 rdx 0 rcx 0xffff80002a1d1ff0 rax 0xffffffff82c98ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x9b34174df83c9280 r11 0x6d60dca4d901fb30 r12 0xffffffff82c999a8 cpu_info_full_primary+0x29a8 r13 0 r14 0 r15 0x1 rip 0xffffffff81079a5c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002c4ea3c0 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) tid=388259 pid=51786 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=82, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a1d1000,0xffff80002a276ab0 process=0xffff8000ffff0018 user=0xffff80002c4e5000, vmspace=0xfffffd8063e6be20 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 51786 313470 67792 32767 2 0x10 syz-executor.0 51786 209947 67792 32767 2 0x4000010 syz-executor.0 *51786 388259 67792 32767 7 0x4000010 syz-executor.0 51786 313985 67792 32767 2 0x4000010 syz-executor.0 17786 130853 37673 32767 2 0x10 syz-executor.1 17786 401980 37673 32767 2 0x4000010 syz-executor.1 90162 138008 79692 32767 2 0x10 syz-executor.7 90162 21015 79692 32767 3 0x4000090 netio syz-executor.7 90162 203216 79692 32767 3 0x4000090 netlck syz-executor.7 90162 518606 79692 32767 3 0x4000090 netlck syz-executor.7 67792 204344 50606 32767 3 0x90 nanoslp syz-executor.0 50606 279379 56122 0 3 0x82 wait syz-executor.0 37673 204126 72135 32767 2 0x10 syz-executor.1 72135 280504 56122 0 3 0x82 wait syz-executor.1 79692 199173 88671 32767 3 0x90 nanoslp syz-executor.7 88671 225322 56122 0 3 0x82 wait syz-executor.7 5795 391 7492 32767 2 0x10 syz-executor.6 7492 273767 56122 0 3 0x82 wait syz-executor.6 33052 395585 2266 32767 2 0x10 syz-executor.5 2266 83776 56122 0 3 0x82 wait syz-executor.5 5160 330396 60484 32767 2 0x10 syz-executor.3 60484 497397 56122 0 3 0x82 wait syz-executor.3 61877 25386 35347 32767 3 0x90 nanoslp syz-executor.2 35347 51805 56122 0 3 0x82 wait syz-executor.2 36976 500857 0 0 3 0x14200 bored sosplice 84710 135935 7012 32767 2 0x10 syz-executor.4 7012 192794 56122 0 3 0x82 wait syz-executor.4 56122 452147 94544 0 3 0x2000082 wait syz-fuzzer 56122 58588 94544 0 3 0x6000082 nanoslp syz-fuzzer 56122 517805 94544 0 3 0x6000082 thrsleep syz-fuzzer 56122 362632 94544 0 3 0x6000082 wait syz-fuzzer 56122 202935 94544 0 3 0x6000082 thrsleep syz-fuzzer 56122 495091 94544 0 3 0x6000082 wait syz-fuzzer 56122 136480 94544 0 3 0x6000082 wait syz-fuzzer 56122 66009 94544 0 3 0x6000082 thrsleep syz-fuzzer 56122 158309 94544 0 3 0x6000082 thrsleep syz-fuzzer 56122 104265 94544 0 3 0x6000082 thrsleep syz-fuzzer 56122 161475 94544 0 3 0x6000082 wait syz-fuzzer 56122 65843 94544 0 3 0x6000082 wait syz-fuzzer 56122 5738 94544 0 3 0x6000082 wait syz-fuzzer 56122 288619 94544 0 3 0x6000082 wait syz-fuzzer 56122 339629 94544 0 3 0x6000082 kqread syz-fuzzer 56122 493292 94544 0 3 0x6000082 thrsleep syz-fuzzer 94544 114850 9853 0 3 0x10008a sigsusp ksh 9853 49154 42829 0 3 0x9a kqread sshd 39760 502074 1 0 3 0x100083 ttyin getty 42829 49045 1 0 3 0x88 kqread sshd 78316 467889 54438 73 3 0x1100090 kqread syslogd 54438 192838 1 0 3 0x100082 netio syslogd 95209 15662 1 0 3 0x100080 kqread resolvd 56521 362367 64997 77 3 0x100092 kqread dhcpleased 75091 105764 64997 77 3 0x100092 kqread dhcpleased 64997 264202 1 0 3 0x80 kqread dhcpleased 76866 363448 0 0 3 0x14200 bored smr 47311 240084 0 0 2 0x14200 zerothread 54769 192409 0 0 3 0x14200 aiodoned aiodoned 45369 135719 0 0 3 0x14200 syncer update 29309 443966 0 0 3 0x14200 cleaner cleaner 53441 303128 0 0 7 0x14200 reaper 10336 471003 0 0 3 0x14200 pgdaemon pagedaemon 99194 523121 0 0 3 0x14200 bored viomb 78663 427078 0 0 3 0x40014200 acpi0 acpi0 49589 501321 0 0 3 0x40014200 idle1 58730 139482 0 0 3 0x14200 bored softnet3 5412 213696 0 0 3 0x14200 bored softnet2 43433 108795 0 0 3 0x14200 bored softnet1 55720 267612 0 0 3 0x14200 bored softnet0 399 355551 0 0 3 0x14200 bored systqmp 28926 126060 0 0 3 0x14200 bored systq 27606 440958 0 0 3 0x14200 tmoslp softclockmp 14540 288813 0 0 3 0x40014200 tmoslp softclock 86566 118178 0 0 3 0x40014200 idle0 1 400023 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 51786 (syz-executor.0) thread 0xffff80002a1d1ff0 (388259) shared rwlock vmmaplk r = 0 (0xfffffd8063e6bf18) #0 witness_lock+0x447 #1 uvm_fault_wire+0xc9 uvm_fault_unwire sys/uvm/uvm_fault.c:1622 [inline] #1 uvm_fault_wire+0xc9 sys/uvm/uvm_fault.c:1605 #2 sys_sysctl+0x2e8 sys/kern/kern_sysctl.c:245 #3 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #3 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d91e60) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x46d sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 rw_enter+0x341 sys/kern/kern_rwlock.c:285 #5 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785 #6 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672 #7 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #8 uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1602 #9 sys_sysctl+0x2e8 sys/kern/kern_sysctl.c:245 #10 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #11 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff82cde6a0) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 sys_sysctl+0x1c3 sys/kern/kern_sysctl.c:238 #3 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #3 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #4 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10221 6413K 6421K 166960K 11409 0 pcb 15 22K 26K 166960K 23 0 rtable 244 6K 7K 166960K 2750 0 pf 29 8K 8K 166960K 101 0 ifaddr 44 15K 15K 166960K 194 0 ifgroup 50 2K 2K 166960K 194 0 sysctl 4 1K 1K 166960K 4 0 counters 64 36K 36K 166960K 136 0 ioctlops 0 0K 2K 166960K 306 0 iov 0 0K 24K 166960K 2121 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1279 80K 80K 166960K 4796 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 258 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 3132 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 21 77K 125K 166960K 17874 0 sigio 0 0K 0K 166960K 359 0 proc 56 78K 103K 166960K 2349 0 subproc 104 6K 6K 166960K 572 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 2192 0 in_multi 99 7K 7K 166960K 648 0 ether_multi 1 0K 0K 166960K 20 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 3591 0 tdb 3 0K 0K 166960K 3 0 pagedep 1 8K 8K 166960K 1 0 inodedep 1 32K 32K 166960K 1 0 newblk 1 0K 0K 166960K 1 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 439 92K 119K 166960K 177798 0 UVM aobj 131 4K 6K 166960K 140 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 445 0 NDP 11 0K 2K 166960K 135 0 temp 74 6712K 6792K 166960K 47734 0 kqueue 12 18K 33K 166960K 1848 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 1452 0 1449 18 15 3 3 0 8 2 rtentry 112 541 0 426 4 0 4 4 0 8 0 unpcb 144 15040 0 15025 127 123 4 8 0 8 2 syncache 312 240 0 240 27 26 1 1 0 8 1 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 253 0 253 25 25 0 1 0 8 0 tcpcb 808 9629 0 9574 168 158 10 28 0 8 0 arp 120 96 0 77 1 0 1 1 0 8 0 ipq 40 18 0 18 5 5 0 1 0 8 0 ipqe 40 147 0 147 6 6 0 2 0 8 0 inpcb 368 18958 0 18899 203 193 10 22 0 8 0 nd6 136 160 0 132 2 0 2 2 0 8 0 kcovpl 48 44 0 36 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2174 0 1704 37 7 30 31 0 8 0 art_table 32 2175 0 1704 4 0 4 4 0 8 0 art_node 16 540 0 435 1 0 1 1 0 8 0 sysvmsgpl 40 26 0 14 1 0 1 1 0 8 0 semapl 112 3126 0 3116 1 0 1 1 0 8 0 shmpl 112 137 0 9 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 24967 0 23516 92 0 92 92 0 8 0 ffsino 272 24967 0 23516 98 0 98 98 0 8 0 nchpl 144 49405 0 47760 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 164529 0 164529 4 3 1 2 0 8 1 percpumem 16 82 0 36 1 0 1 1 0 8 0 kstatmem 264 94 0 72 2 0 2 2 0 8 0 scxspl 216 152140 0 152140 66 65 1 8 1 8 1 plimitpl 152 3459 0 3435 31 29 2 2 0 8 1 sigapl 424 18087 0 18034 7 0 7 7 0 8 0 futexpl 64 148759 0 148759 2 1 1 1 0 8 1 knotepl 120 1174 0 0 18 1 17 17 0 8 0 kqueuepl 216 4673 0 4665 81 80 1 7 0 8 0 pipepl 320 4357 0 4329 86 83 3 11 0 8 0 fdescpl 496 18068 0 18036 7 1 6 6 0 8 0 filepl 152 120018 0 119781 158 145 13 20 0 8 2 lockfpl 104 3521 0 3519 3 2 1 2 0 8 0 lockfspl 48 1004 0 1002 1 0 1 1 0 8 0 sessionpl 144 59 0 43 1 0 1 1 0 8 0 pgrppl 48 198 0 182 1 0 1 1 0 8 0 ucredpl 104 18549 0 18531 1 0 1 1 0 8 0 zombiepl 144 18036 0 18034 1 0 1 1 0 8 0 processpl 1136 18087 0 18034 5 0 5 5 0 8 0 procpl 680 50294 0 50218 9 1 8 9 0 8 0 sosppl 168 321 0 318 8 7 1 1 0 8 0 sockpl 488 36474 0 36398 524 505 19 34 0 8 3 mcl64k 65536 42 0 0 4 1 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 27 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 1 1 2 0 8 0 mcl8k 8192 31 0 0 3 0 3 3 0 8 0 mcl4k 4096 57 0 0 3 0 3 3 0 8 0 mcl2k2 2112 25 0 0 2 0 2 2 0 8 0 mcl2k 2048 495 0 0 37 16 21 37 0 8 0 mtagpl 96 10 0 0 1 0 1 1 0 8 0 mbufpl 256 1721 0 0 65 0 65 65 0 8 0 bufpl 288 38588 0 32273 452 0 452 452 0 8 0 anonpl 24 2040097 0 2027637 167 67 100 104 0 186 0 amapchunkpl 152 575880 0 575008 126 85 41 51 0 158 1 amappl16 200 52029 0 51727 324 295 29 32 0 8 4 amappl15 192 18 0 18 4 4 0 1 0 8 0 amappl14 184 348 0 327 4 2 2 2 0 8 0 amappl13 176 38 0 38 11 11 0 1 0 8 0 amappl12 168 19246 0 19207 2 0 2 2 0 8 0 amappl11 160 78 0 68 1 0 1 1 0 8 0 amappl10 152 122 0 98 2 0 2 2 0 8 0 amappl9 144 461 0 461 29 28 1 1 0 8 1 amappl8 136 999 0 796 8 0 8 8 0 8 0 amappl7 128 312 0 287 2 0 2 2 0 8 0 amappl6 120 1001 0 976 1 0 1 1 0 8 0 amappl5 112 519 0 509 1 0 1 1 0 8 0 amappl4 104 1006 0 972 3 1 2 2 0 8 0 amappl3 96 108797 0 108701 4 0 4 4 0 8 0 amappl2 88 19471 0 19379 4 1 3 3 0 8 0 amappl1 80 73511 0 72986 22 9 13 22 0 8 0 amappl 88 176252 0 175996 7 0 7 7 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 72 139 0 9 3 0 3 3 0 8 0 uaddrrnd 24 18068 0 18035 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 18068 0 18035 1 0 1 1 0 8 0 vmmpekpl 168 147816 0 147760 4 0 4 4 0 8 0 vmmpepl 168 1079290 0 1076799 462 333 129 151 0 357 3 vmsppl 448 18067 0 18035 5 0 5 5 0 8 0 rwobjpl 56 279140 0 271592 121 10 111 111 0 8 0 pdppl 4096 36143 0 36070 542 461 81 95 0 8 8 pvpl 32 44854 0 0 363 1 362 362 0 265 0 pmappl 248 18067 0 18035 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1759 0 868 27 0 27 27 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8292f067) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8063e6be20,20002000,20003000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_wire(fffffd8063e6be20,20002000,20004000,3) at uvm_fault_wire+0xd7 uvm_fault_unwire sys/uvm/uvm_fault.c:1623 [inline] uvm_fault_wire(fffffd8063e6be20,20002000,20004000,3) at uvm_fault_wire+0xd7 sys/uvm/uvm_fault.c:1605 sys_sysctl(ffff80002a1d1ff0,ffff80002c4ea620,ffff80002c4ea670) at sys_sysctl+0x2e8 sys/kern/kern_sysctl.c:245 syscall(ffff80002c4ea720) at syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002c4ea720) at syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76e92d0c260, count: -7 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800029cfbff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82d91c58) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d91c58) at __mp_lock+0x122 sys/kern/kern_lock.c:147 reaper(ffff80002a155d50) at reaper+0x160 sys/kern/kern_exit.c:451 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800029cfbff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82d91c58) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d91c58) at __mp_lock+0x122 sys/kern/kern_lock.c:147 reaper(ffff80002a155d50) at reaper+0x160 sys/kern/kern_exit.c:451 end trace frame: 0x0, count: -5