panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *270982 14588 0 0x2000 0x4080000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833ddcb0) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c097010,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806c097010,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c993368,1,400000000100,ffff80003c993398,0,6f2518022c279c4a,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c993364,2,400000000100,ffff80003c993398,0,27,e3da20a973b75443) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80002a7f2538,ffff80003c9934d0,ffff80003c993420) at sys_sysctl+0x425 syscall(ffff80003c9934d0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf7f546fbfa0, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault_unwire_locked: address not in map ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833ddcb0) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c097010,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806c097010,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c993368,1,400000000100,ffff80003c993398,0,6f2518022c279c4a,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c993364,2,400000000100,ffff80003c993398,0,27,e3da20a973b75443) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80002a7f2538,ffff80003c9934d0,ffff80003c993420) at sys_sysctl+0x425 syscall(ffff80003c9934d0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf7f546fbfa0, count: -9 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80003c992f70 rbx 0xe rdx 0xffff80000145aac0 rcx 0 rax 0xffff80002a7f2538 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa611cadc4edcbd62 r11 0x649233b7a47c001c r12 0 r13 0x7f7fffffc000 r14 0 r15 0x1 rip 0xffffffff826e6085 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c992f60 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC (syz-executor) tid=270982 pid=14588 tcnt=6 stat=onproc flags process=2000 proc=4080000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003a935218 scnt=3 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7f2f78,0xffff80002a7f2028 process=0xffff800035d25a28 user=0xffff80003c98e000, vmspace=0xfffffd806c097010 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 20569 270653 95499 0 2 0x10 syz-executor 20569 21222 95499 0 3 0x4000090 sysctllk syz-executor 20569 35226 95499 0 3 0x4000090 fsleep syz-executor 62886 38494 18569 0 2 0 syz-executor 62886 470509 18569 0 3 0x4000080 ttyout syz-executor 62886 380840 18569 0 3 0x4000080 ttyin syz-executor 62886 197532 18569 0 3 0x4000080 fsleep syz-executor 6590 509219 40616 0 2 0 syz-executor 6590 496860 40616 0 2 0x4000000 syz-executor 6590 445677 40616 0 2 0x4000000 syz-executor 10807 25647 33202 0 3 0x80 nanoslp syz-executor 10807 130585 33202 0 3 0x4000080 ttyin syz-executor 10807 315998 33202 0 3 0x4000080 fsleep syz-executor 10807 65664 33202 0 3 0x4000080 fsleep syz-executor 10807 265312 33202 0 3 0x4000080 fsleep syz-executor 14588 276510 93767 0 2 0x82000 syz-executor 14588 301600 93767 0 4 0x4082000 syz-executor 14588 137690 93767 0 4 0x4082000 syz-executor *14588 270982 93767 0 7 0x4082000 syz-executor 14588 205892 93767 0 2 0x4082000 syz-executor 14588 158920 93767 0 3 0x4002000 suspend syz-executor 8614 331437 0 0 3 0x14200 bored sosplice 16828 500358 87532 0 3 0x80 nanoslp syz-executor 16828 63387 87532 0 3 0x4000080 ttyin syz-executor 16828 107631 87532 0 3 0x4000000 inode syz-executor 86173 124884 45656 0 3 0x90 nanoslp syz-executor 86173 206452 45656 0 3 0x4000090 kqsel syz-executor 86173 70586 45656 0 3 0x4000090 fsleep syz-executor 95031 191903 0 0 3 0x14200 acct acct 45656 424327 39610 0 3 0x82 nanoslp syz-executor 93767 129987 39610 0 3 0x82 nanoslp syz-executor 87532 359843 39610 0 3 0x82 nanoslp syz-executor 40616 25370 39610 0 3 0x82 nanoslp syz-executor 33202 114895 39610 0 3 0x82 nanoslp syz-executor 18569 493169 39610 0 3 0x82 nanoslp syz-executor 95499 501664 39610 0 3 0x82 nanoslp syz-executor 56125 319709 39610 0 2 0x2 syz-executor 39610 295837 93106 0 3 0x82 kqread syz-executor 93106 213269 19136 0 3 0x10008a sigsusp ksh 19136 276422 83150 0 3 0x98 kqread sshd-session 83150 171719 95074 0 3 0x92 kqread sshd-session 21787 134547 1 0 3 0x100083 ttyin getty 95074 81809 1 0 3 0x88 kqread sshd 3592 452512 84023 73 3 0x1100090 kqread syslogd 84023 34473 1 0 3 0x100082 sbwait syslogd 12453 214322 1 0 3 0x100080 kqread resolvd 42610 122933 49056 77 3 0x100092 sysctllk dhcpleased 60647 358585 49056 77 3 0x100092 kqread dhcpleased 49056 262614 1 0 3 0x80 kqread dhcpleased 50097 284724 0 0 3 0x14200 bored smr 75492 445967 0 0 2 0x14200 zerothread 30003 69792 0 0 3 0x14200 aiodoned aiodoned 68846 342490 0 0 3 0x14200 syncer update 21978 344721 0 0 3 0x14200 cleaner cleaner 98516 297783 0 0 3 0x14200 reaper reaper 26115 229618 0 0 3 0x14200 pgdaemon pagedaemon 94580 450172 0 0 3 0x14200 bored viomb 90325 407034 0 0 3 0x40014200 acpi0 acpi0 10538 96630 0 0 3 0x14200 bored softnet3 3837 155049 0 0 3 0x14200 bored softnet2 72039 376582 0 0 3 0x14200 bored softnet1 58166 65352 0 0 3 0x14200 bored softnet0 67642 231542 0 0 3 0x14200 bored systqmp 95995 139871 0 0 3 0x14200 bored systq 45107 273371 0 0 3 0x40014200 tmoslp softclock 31569 275147 0 0 3 0x40014200 idle0 1 484419 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10206 11110K 11435K 166960K 11839 0 pcb 19 13K 14K 166960K 100 0 rtable 225 9K 10K 166960K 386 0 pf 34 13K 17K 166960K 64 0 ifaddr 41 7K 7K 166960K 53 0 ifgroup 50 2K 2K 166960K 77 0 sysctl 1 1K 1K 166960K 1 0 counters 30 17K 17K 166960K 37 0 ioctlops 0 0K 4K 166960K 51 0 iov 0 0K 12K 166960K 12 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1402 88K 88K 166960K 1578 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 12 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 340 0 sigio 0 0K 0K 166960K 4 0 proc 60 59K 108K 166960K 497 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 50 0 in_multi 96 7K 7K 166960K 103 0 ether_multi 1 0K 0K 166960K 1 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 217 970K 970K 166960K 217 0 exec 0 0K 1K 166960K 430 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 240 73K 73K 166960K 4608 0 UVM aobj 10 2K 2K 166960K 12 0 pinsyscall 38 76K 96K 166960K 1367 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 15 0 NDP 11 0K 2K 166960K 33 0 temp 49 8673K 9050K 166960K 10900 0 kqueue 14 22K 28K 166960K 60 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 108 0 105 3 2 1 3 0 8 0 rtentry 128 117 0 18 4 0 4 4 0 8 0 unpcb 144 306 0 287 6 5 1 6 0 8 0 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 808 90 0 86 5 1 4 4 0 8 3 arp 88 19 0 1 1 0 1 1 0 8 0 ipq 40 3 0 0 1 0 1 1 0 8 0 ipqe 40 4 0 0 1 0 1 1 0 8 0 inpcb 344 462 0 449 9 1 8 8 0 8 6 nd6 104 26 0 2 1 0 1 1 0 8 0 pkpcb 40 68 0 68 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 1 0 1 1 1 0 1 0 8 0 pppxif 1384 1 0 1 1 1 0 1 0 8 0 pfrktable 1344 5 0 1 1 0 1 1 0 8 0 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 4 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 1 1 0 1 1 0 8 1 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 2 0 0 1 0 1 1 0 8 0 pfstate 344 1 0 0 1 0 1 1 0 8 0 pfrule 1344 7 0 5 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 467 0 53 29 1 28 29 0 8 0 art_table 32 468 0 53 4 0 4 4 0 8 0 art_node 16 116 0 27 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 3 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 8 0 1 1 0 1 1 0 8 0 shmpl 112 9 0 2 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1937 0 436 95 0 95 95 0 8 0 ffsino 248 1937 0 436 95 0 95 95 0 8 0 nchpl 144 2396 0 715 63 0 63 63 0 8 0 uvmvnodes 80 2178 0 0 45 0 45 45 0 8 0 vnodes 216 2178 0 0 121 0 121 121 0 8 0 namei 1024 8046 0 8041 4 3 1 2 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 34 0 12 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 7382 0 7382 3 2 1 3 1 8 1 plimitpl 152 64 0 46 1 0 1 1 0 8 0 sigapl 424 620 0 573 7 1 6 7 0 8 0 futexpl 64 3670 0 3664 1 0 1 1 0 8 0 knotepl 120 9951 0 9902 20 10 10 10 0 8 8 kqueuepl 184 117 0 106 3 2 1 3 0 8 0 pipepl 296 108 0 81 3 0 3 3 0 8 0 fdescpl 440 602 0 573 5 1 4 5 0 8 0 filepl 120 3321 0 3089 14 5 9 12 0 8 0 lockfpl 104 144 0 141 1 0 1 1 0 8 0 lockfspl 48 32 0 29 1 0 1 1 0 8 0 sessionpl 144 22 0 14 1 0 1 1 0 8 0 pgrppl 48 31 0 15 1 0 1 1 0 8 0 ucredpl 104 407 0 392 1 0 1 1 0 8 0 zombiepl 144 639 0 639 3 2 1 1 0 8 1 processpl 1112 620 0 573 4 0 4 4 0 8 0 procpl 656 988 0 921 6 0 6 6 0 8 0 sockpl 528 953 0 918 20 13 7 11 0 8 4 mcl64k 65536 8 0 8 2 2 0 1 0 8 0 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 12 0 12 3 2 1 1 0 8 1 mcl4k 4096 2647 0 2597 11 4 7 11 0 8 0 mcl2k2 2112 1 0 1 1 1 0 1 0 8 0 mcl2k 2048 346 0 341 5 3 2 4 0 8 0 mtagpl 96 19 0 5 1 0 1 1 0 8 0 mbufpl 256 6221 0 6006 14 0 14 14 0 8 0 bufpl 280 2567 0 124 175 0 175 175 0 8 0 anonpl 24 118875 0 115556 42 20 22 32 0 187 0 amapchunkpl 152 14613 0 14051 28 5 23 26 0 158 0 amappl16 200 2137 0 2111 5 3 2 5 0 8 0 amappl15 192 23 0 23 1 1 0 1 0 8 0 amappl14 184 137 0 127 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 1209 0 1180 3 1 2 3 0 8 0 amappl11 160 46 0 36 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 1 0 1 0 8 0 amappl9 144 244 0 244 1 1 0 1 0 8 0 amappl8 136 48 0 47 1 0 1 1 0 8 0 amappl7 128 98 0 88 1 0 1 1 0 8 0 amappl6 120 213 0 210 1 0 1 1 0 8 0 amappl5 112 120 0 114 1 0 1 1 0 8 0 amappl4 104 286 0 271 1 0 1 1 0 8 0 amappl3 96 2571 0 2445 4 0 4 4 0 8 0 amappl2 88 613 0 558 2 0 2 2 0 8 0 amappl1 80 8276 0 7749 13 1 12 13 0 8 0 amappl 88 4245 0 4054 6 1 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 254 0 254 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 11 0 2 1 0 1 1 0 8 0 uaddrrnd 24 602 0 573 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 602 0 573 1 0 1 1 0 8 0 vmmpekpl 168 6395 0 6365 2 0 2 2 0 8 0 vmmpepl 168 42935 0 41154 84 4 80 82 0 357 0 vmsppl 360 601 0 573 4 1 3 4 0 8 0 rwobjpl 32 16851 0 13773 25 0 25 25 0 8 0 pdppl 4096 1210 0 1146 104 38 66 82 0 8 2 pvpl 32 283562 0 274472 108 31 77 93 0 265 0 pmappl 216 601 0 573 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 283 0 59 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833ddcb0) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c097010,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806c097010,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c993368,1,400000000100,ffff80003c993398,0,6f2518022c279c4a,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c993364,2,400000000100,ffff80003c993398,0,27,e3da20a973b75443) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80002a7f2538,ffff80003c9934d0,ffff80003c993420) at sys_sysctl+0x425 syscall(ffff80003c9934d0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf7f546fbfa0, count: -9 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833ddcb0) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c097010,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806c097010,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c993368,1,400000000100,ffff80003c993398,0,6f2518022c279c4a,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c993364,2,400000000100,ffff80003c993398,0,27,e3da20a973b75443) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80002a7f2538,ffff80003c9934d0,ffff80003c993420) at sys_sysctl+0x425 syscall(ffff80003c9934d0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf7f546fbfa0, count: -9