panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 39140 62189 0 0x10 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833d52ec) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c0b9b50,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806c0b9b50,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80003c993a38,1,400000000100,ffff80003c993a68,0,a4ae69c1e15c359d,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c993a34,2,400000000100,ffff80003c993a68,0,27,4ecd526fa97b7a9f) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003391c2b8,ffff80003c993ba0,ffff80003c993af0) at sys_sysctl+0x425 syscall(ffff80003c993ba0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd362bca76d0, 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(ffffffff833d52ec) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c0b9b50,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806c0b9b50,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80003c993a38,1,400000000100,ffff80003c993a68,0,a4ae69c1e15c359d,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c993a34,2,400000000100,ffff80003c993a68,0,27,4ecd526fa97b7a9f) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003391c2b8,ffff80003c993ba0,ffff80003c993af0) at sys_sysctl+0x425 syscall(ffff80003c993ba0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd362bca76d0, count: -9 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80003c993640 rbx 0xd rdx 0 rcx 0 rax 0xffff80003391c2b8 r8 0x101010101010101 r9 0x8080808080808080 r10 0x9bc278459fbf6f07 r11 0xbfbc0f15d58c716b r12 0 r13 0x7f7fffffc000 r14 0 r15 0x1 rip 0xffffffff8305dc95 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c993630 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC (syz-executor) tid=39140 pid=62189 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7cca58,0xffff80003391d228 process=0xffff800035d255d0 user=0xffff80003c98e000, vmspace=0xfffffd806c0b9b50 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 62189 409692 62715 0 3 0x90 nanoslp syz-executor 62189 265039 62715 0 2 0x4000010 syz-executor *62189 39140 62715 0 7 0x4000010 syz-executor 62189 193249 62715 0 3 0x4000090 fsleep syz-executor 82910 350822 27032 0 2 0x100002 arp 27032 226582 32731 0 3 0x10008a sigsusp sh 55489 267483 70023 0 3 0x80 nanoslp syz-executor 55489 114461 70023 0 3 0x4000080 fifow syz-executor 55489 329723 70023 0 3 0x4000080 fsleep syz-executor 29015 160115 90590 0 3 0x90 nanoslp syz-executor 29015 487298 90590 0 3 0x4000090 sbwait syz-executor 29015 486130 90590 0 3 0x4000090 fsleep syz-executor 32731 324245 69638 0 3 0x82 wait syz-executor 86873 453707 95858 0 3 0x80 nanoslp syz-executor 86873 343879 95858 0 3 0x4000080 kqread syz-executor 86873 82514 95858 0 3 0x4000080 kqsel syz-executor 86873 479027 95858 0 3 0x4000080 fsleep syz-executor 96364 312205 0 0 3 0x14200 bored sosplice 95858 509236 69638 0 3 0x82 nanoslp syz-executor 62715 4312 69638 0 3 0x82 nanoslp syz-executor 90590 327348 69638 0 3 0x82 nanoslp syz-executor 92983 47556 69638 0 3 0x82 wait syz-executor 24601 293163 69638 0 3 0x82 wait syz-executor 47596 134545 69638 0 3 0x82 wait syz-executor 70023 504161 69638 0 3 0x82 nanoslp syz-executor 69638 349031 40835 0 3 0x82 kqread syz-executor 40835 244784 3169 0 3 0x10008a sigsusp ksh 3169 428751 80680 0 3 0x98 kqread sshd-session 80680 424150 20492 0 3 0x92 kqread sshd-session 65698 134031 1 0 3 0x100083 ttyin getty 20492 524225 1 0 3 0x88 kqread sshd 18010 16551 11529 73 3 0x1100090 kqread syslogd 11529 76922 1 0 3 0x100082 sbwait syslogd 61243 230658 1 0 3 0x100080 kqread resolvd 83114 486946 72512 77 3 0x100092 kqread dhcpleased 4989 105111 72512 77 3 0x100092 kqread dhcpleased 72512 407484 1 0 3 0x80 kqread dhcpleased 84045 252056 0 0 3 0x14200 bored smr 23934 449861 0 0 2 0x14200 zerothread 80239 14357 0 0 3 0x14200 aiodoned aiodoned 49708 195098 0 0 3 0x14200 syncer update 88653 287738 0 0 3 0x14200 cleaner cleaner 49256 306808 0 0 3 0x14200 reaper reaper 15725 385175 0 0 3 0x14200 pgdaemon pagedaemon 70792 26477 0 0 3 0x14200 bored viomb 15836 304758 0 0 3 0x40014200 acpi0 acpi0 9216 25530 0 0 3 0x14200 bored softnet3 78373 352546 0 0 3 0x14200 bored softnet2 3148 323043 0 0 3 0x14200 bored softnet1 53549 523482 0 0 3 0x14200 bored softnet0 62634 178146 0 0 3 0x14200 bored systqmp 86391 322976 0 0 3 0x14200 bored systq 69393 332837 0 0 3 0x40014200 tmoslp softclock 42599 410927 0 0 3 0x40014200 idle0 1 292978 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 10194 11243K 11371K 166960K 11441 0 pcb 17 12K 12K 166960K 33 0 rtable 221 6K 7K 166960K 374 0 pf 31 13K 13K 166960K 38 0 ifaddr 40 7K 7K 166960K 48 0 ifgroup 50 2K 2K 166960K 61 0 sysctl 1 1K 1K 166960K 1 0 counters 30 17K 17K 166960K 33 0 ioctlops 0 0K 4K 166960K 44 0 iov 0 0K 12K 166960K 69 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1341 84K 84K 166960K 1435 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 76 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 19 69K 97K 166960K 252 0 sigio 0 0K 0K 166960K 2 0 proc 59 59K 124K 166960K 507 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 22 0 in_multi 89 6K 7K 166960K 102 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 533 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 237 72K 78K 166960K 3686 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 41 82K 96K 166960K 1301 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 8 0 NDP 11 0K 2K 166960K 30 0 temp 39 8626K 8690K 166960K 8331 0 kqueue 13 20K 28K 166960K 44 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 46 0 42 1 0 1 1 0 8 0 rtentry 112 115 0 13 4 0 4 4 0 8 0 unpcb 144 225 0 201 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 64 0 57 4 0 4 4 0 8 3 arp 88 19 0 2 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 344 216 0 204 4 0 4 4 0 8 2 nd6 104 24 0 3 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1072 1 0 1 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 0 1 1 0 8 1 pfstkey 128 4 0 4 1 0 1 1 0 8 1 pfstate 344 2 0 2 1 0 1 1 0 8 1 pfrule 1344 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 456 0 44 29 0 29 29 0 8 2 art_table 32 457 0 44 4 0 4 4 0 8 0 art_node 16 113 0 20 1 0 1 1 0 8 0 semapl 112 74 0 64 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1717 0 213 95 0 95 95 0 8 0 ffsino 248 1717 0 213 95 0 95 95 0 8 0 nchpl 144 2064 0 379 63 0 63 63 0 8 0 uvmvnodes 80 1860 0 0 38 0 38 38 0 8 0 vnodes 216 1860 0 0 104 0 104 104 0 8 0 namei 1024 6623 0 6623 2 0 2 2 0 8 2 kstatmem 264 28 0 6 2 0 2 2 0 8 0 scxspl 216 6384 0 6384 2 0 2 2 1 8 2 plimitpl 152 145 0 128 1 0 1 1 0 8 0 sigapl 424 531 0 483 7 0 7 7 0 8 1 futexpl 64 1956 0 1952 1 0 1 1 0 8 0 knotepl 120 7583 0 7536 15 4 11 15 0 8 8 kqueuepl 184 52 0 41 1 0 1 1 0 8 0 pipepl 296 112 0 85 3 0 3 3 0 8 0 fdescpl 440 514 0 483 5 0 5 5 0 8 1 filepl 120 2307 0 2077 8 0 8 8 0 8 0 lockfpl 104 34 0 32 1 0 1 1 0 8 0 lockfspl 48 15 0 13 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 104 307 0 292 1 0 1 1 0 8 0 zombiepl 144 486 0 483 1 0 1 1 0 8 0 processpl 1112 531 0 483 4 0 4 4 0 8 0 procpl 656 706 0 648 6 0 6 6 0 8 1 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 528 488 0 448 5 0 5 5 0 8 2 mcl64k 65536 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 8 0 8 1 0 1 1 0 8 1 mcl4k 4096 2538 0 2486 14 0 14 14 0 8 7 mcl2k 2048 300 0 299 1 0 1 1 0 8 0 mtagpl 96 47 0 4 2 0 2 2 0 8 0 mbufpl 256 5625 0 5452 12 0 12 12 0 8 0 bufpl 280 2389 0 124 162 0 162 162 0 8 0 anonpl 24 106733 0 103405 57 0 57 57 0 187 35 amapchunkpl 152 11480 0 10938 28 0 28 28 0 158 7 amappl16 200 1981 0 1956 10 0 10 10 0 8 6 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 103 0 92 1 0 1 1 0 8 0 amappl13 176 2 0 2 1 0 1 1 0 8 1 amappl12 168 1137 0 1105 3 0 3 3 0 8 1 amappl11 160 47 0 37 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 0 1 1 0 8 1 amappl9 144 265 0 265 1 0 1 1 0 8 1 amappl8 136 33 0 32 1 0 1 1 0 8 0 amappl7 128 95 0 84 1 0 1 1 0 8 0 amappl6 120 174 0 170 1 0 1 1 0 8 0 amappl5 112 133 0 126 1 0 1 1 0 8 0 amappl4 104 292 0 278 1 0 1 1 0 8 0 amappl3 96 1905 0 1783 3 0 3 3 0 8 0 amappl2 88 623 0 566 2 0 2 2 0 8 0 amappl1 80 7821 0 7278 13 0 13 13 0 8 1 amappl 88 3327 0 3142 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 514 0 483 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 514 0 483 1 0 1 1 0 8 0 vmmpekpl 168 5637 0 5602 2 0 2 2 0 8 0 vmmpepl 168 37544 0 35726 84 0 84 84 0 357 4 vmsppl 360 513 0 483 4 0 4 4 0 8 1 rwobjpl 32 15238 0 12474 23 0 23 23 0 8 0 pdppl 4096 1035 0 966 99 30 69 83 0 8 0 pvpl 32 250218 0 241272 131 0 131 131 0 265 51 pmappl 216 513 0 483 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 266 0 30 7 0 7 7 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(ffffffff833d52ec) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c0b9b50,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806c0b9b50,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80003c993a38,1,400000000100,ffff80003c993a68,0,a4ae69c1e15c359d,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c993a34,2,400000000100,ffff80003c993a68,0,27,4ecd526fa97b7a9f) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003391c2b8,ffff80003c993ba0,ffff80003c993af0) at sys_sysctl+0x425 syscall(ffff80003c993ba0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd362bca76d0, 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(ffffffff833d52ec) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c0b9b50,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806c0b9b50,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80003c993a38,1,400000000100,ffff80003c993a68,0,a4ae69c1e15c359d,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c993a34,2,400000000100,ffff80003c993a68,0,27,4ecd526fa97b7a9f) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003391c2b8,ffff80003c993ba0,ffff80003c993af0) at sys_sysctl+0x425 syscall(ffff80003c993ba0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd362bca76d0, count: -9