panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *155885 78746 0 0x1000 0x4080000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833dd5b3) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c0bd010,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806c0bd010,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c981098,1,400000000100,ffff80003c9810c8,0,d08f49dfa263f1b4,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c981094,2,400000000100,ffff80003c9810c8,0,27,1272a23f89760c63) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003812dc58,ffff80003c981200,ffff80003c981150) at sys_sysctl+0x425 syscall(ffff80003c981200) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f6d28ee610, 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(ffffffff833dd5b3) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c0bd010,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806c0bd010,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c981098,1,400000000100,ffff80003c9810c8,0,d08f49dfa263f1b4,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c981094,2,400000000100,ffff80003c9810c8,0,27,1272a23f89760c63) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003812dc58,ffff80003c981200,ffff80003c981150) at sys_sysctl+0x425 syscall(ffff80003c981200) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f6d28ee610, count: -9 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80003c980ca0 rbx 0xe rdx 0xffff80000145a480 rcx 0 rax 0xffff80003812dc58 r8 0x101010101010101 r9 0x8080808080808080 r10 0x66d47ab507d99b07 r11 0x2f3ffd44510fd2e6 r12 0 r13 0x7f7fffffc000 r14 0 r15 0x1 rip 0xffffffff81d777e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c980c90 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC (syz-executor) tid=155885 pid=78746 tcnt=2 stat=onproc flags process=1000 proc=4080000 runpri=32, usrpri=79, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003812c2b8 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003812c2b8,0xffff80003812d228 process=0xffff800035d248c8 user=0xffff80003c97c000, vmspace=0xfffffd806c0bd010 estcpu=29, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 6821 183618 12249 -1 2 0x10 syz-executor 6821 36944 12249 -1 3 0x4000090 fsleep syz-executor 6821 117998 12249 -1 2 0x4000010 syz-executor 70483 53686 71517 0 2 0 syz-executor 70483 259729 71517 0 3 0x4000080 sysctllk syz-executor 70483 121140 71517 0 3 0x4000080 fsleep syz-executor 87407 89530 77756 0 2 0 syz-executor 87407 78538 77756 0 3 0x4000080 kqread syz-executor 87407 447147 77756 0 3 0x4000080 sysctllk syz-executor 92124 87742 25077 60928 3 0x90 nanoslp syz-executor 92124 142216 25077 60928 3 0x4000090 sysctllk syz-executor 92124 312893 25077 60928 3 0x4000090 fsleep syz-executor 20916 458054 21642 60928 3 0x90 nanoslp syz-executor 20916 504309 21642 60928 3 0x4000090 sysctllk syz-executor 20916 15966 21642 60928 3 0x4000090 fsleep syz-executor 61045 482996 99411 -1 3 0x90 nanoslp syz-executor 61045 384384 99411 -1 3 0x4000090 sysctllk syz-executor 61045 385456 99411 -1 3 0x4000090 sysctllk syz-executor 61045 258184 99411 -1 3 0x4000090 fsleep syz-executor 78746 388719 64990 0 3 0x3000 suspend syz-executor *78746 155885 64990 0 7 0x4081000 syz-executor 41905 16654 0 0 3 0x14200 bored sosplice 85464 227500 99787 0 3 0x82 wait syz-executor 64990 206971 99787 0 3 0x82 nanoslp syz-executor 99411 75315 99787 0 3 0x82 nanoslp syz-executor 12249 268963 99787 0 3 0x82 nanoslp syz-executor 71517 132467 99787 0 3 0x82 nanoslp syz-executor 25077 411068 99787 0 3 0x82 nanoslp syz-executor 21642 358100 99787 0 3 0x82 nanoslp syz-executor 77756 186026 99787 0 3 0x82 nanoslp syz-executor 99787 267567 4609 0 3 0x82 kqread syz-executor 4609 137220 99928 0 3 0x10008a sigsusp ksh 99928 402309 84743 0 3 0x98 kqread sshd-session 84743 462286 11188 0 3 0x92 kqread sshd-session 62348 276824 1 0 3 0x100083 ttyopn getty 11188 417184 1 0 3 0x88 kqread sshd 32371 65104 54320 73 3 0x1100090 kqread syslogd 54320 456692 1 0 3 0x100082 sbwait syslogd 1945 428599 1 0 3 0x100080 kqread resolvd 44083 290050 44846 77 3 0x100092 kqread dhcpleased 27053 338250 44846 77 3 0x100092 kqread dhcpleased 44846 99233 1 0 3 0x80 kqread dhcpleased 7822 496328 0 0 3 0x14200 bored smr 97743 122067 0 0 2 0x14200 zerothread 58867 464505 0 0 3 0x14200 aiodoned aiodoned 30850 512524 0 0 3 0x14200 syncer update 53781 468021 0 0 3 0x14200 cleaner cleaner 48270 327259 0 0 3 0x14200 reaper reaper 70184 276114 0 0 3 0x14200 pgdaemon pagedaemon 34406 418762 0 0 3 0x14200 bored viomb 91691 356735 0 0 3 0x40014200 acpi0 acpi0 8406 439426 0 0 3 0x14200 bored softnet3 70973 81386 0 0 3 0x14200 bored softnet2 15755 242524 0 0 3 0x14200 bored softnet1 75602 122036 0 0 3 0x14200 bored softnet0 95029 341668 0 0 3 0x14200 bored systqmp 86510 449618 0 0 3 0x14200 bored systq 25303 286275 0 0 3 0x40014200 tmoslp softclock 68579 427024 0 0 3 0x40014200 idle0 1 428014 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10174 11041K 11502K 166960K 11846 0 pcb 17 12K 12K 166960K 74 0 rtable 233 8K 8K 166960K 435 0 pf 29 12K 17K 166960K 262 0 ifaddr 39 7K 8K 166960K 59 0 ifgroup 46 2K 2K 166960K 76 0 sysctl 1 1K 1K 166960K 1 0 counters 29 17K 17K 166960K 50 0 ioctlops 0 0K 4K 166960K 209 0 iov 0 0K 16K 166960K 22 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1407 88K 89K 166960K 1672 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 10 0K 0K 166960K 16 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 420 0 sigio 0 0K 0K 166960K 1 0 proc 60 59K 116K 166960K 482 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 28 0 in_multi 88 6K 7K 166960K 104 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 373 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 243 74K 86K 166960K 5210 0 UVM aobj 42 2K 2K 166960K 47 0 pinsyscall 39 78K 92K 166960K 1442 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 17 0 NDP 10 0K 1K 166960K 37 0 temp 46 8676K 8740K 166960K 8818 0 kqueue 15 24K 30K 166960K 82 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 92 0 88 2 0 2 2 0 8 1 rtentry 128 120 0 15 4 0 4 4 0 8 0 unpcb 144 221 0 199 2 0 2 2 0 8 1 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 58 0 53 1 0 1 1 0 8 0 arp 88 20 0 2 1 0 1 1 0 8 0 ipq 40 2 0 1 1 0 1 1 0 8 0 ipqe 40 3 0 2 1 0 1 1 0 8 0 inpcb 344 331 0 318 5 0 5 5 0 8 3 nd6 104 26 0 3 1 0 1 1 0 8 0 pkpcb 40 3 0 3 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 2 0 2 1 0 1 1 0 8 1 ppxss 1072 18 0 18 1 0 1 1 0 8 1 pppxif 1384 4 0 4 1 0 1 1 0 8 1 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pfrktable 1344 4 0 4 1 1 0 1 0 8 0 pfanchor 1288 3 0 1 1 0 1 1 0 8 0 pftag 88 3 0 1 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 135 0 134 2 1 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 472 0 56 29 0 29 29 0 8 1 art_table 32 473 0 56 4 0 4 4 0 8 0 art_node 16 118 0 23 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 3 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 12 0 4 1 0 1 1 0 8 0 shmpl 112 44 0 5 2 0 2 2 0 8 0 dirhash 1024 24 0 7 3 0 3 3 0 8 0 dino2pl 256 2103 0 607 95 0 95 95 0 8 0 ffsino 248 2103 0 607 95 0 95 95 0 8 0 nchpl 144 2696 0 1017 63 0 63 63 0 8 0 rtmask 32 4 0 4 1 0 1 1 0 8 1 uvmvnodes 80 2388 0 0 49 0 49 49 0 8 0 vnodes 216 2388 0 0 133 0 133 133 0 8 0 namei 1024 8350 0 8350 3 2 1 2 0 8 1 pfiaddrpl 120 1 0 1 1 1 0 1 0 8 0 kstatmem 264 42 0 22 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 8132 0 8132 3 2 1 3 1 8 1 plimitpl 152 70 0 53 1 0 1 1 0 8 0 sigapl 424 700 0 653 6 0 6 6 0 8 0 futexpl 64 4849 0 4844 1 0 1 1 0 8 0 knotepl 120 13991 0 13942 10 0 10 10 0 8 8 kqueuepl 184 158 0 145 3 0 3 3 0 8 2 pipepl 296 129 0 102 3 0 3 3 0 8 0 fdescpl 440 681 0 651 5 1 4 5 0 8 0 filepl 120 3315 0 3087 10 0 10 10 0 8 2 lockfpl 104 101 0 98 1 0 1 1 0 8 0 lockfspl 48 41 0 38 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 29 0 13 1 0 1 1 0 8 0 ucredpl 104 514 0 499 1 0 1 1 0 8 0 zombiepl 144 655 0 653 1 0 1 1 0 8 0 processpl 1112 700 0 653 4 0 4 4 0 8 0 procpl 656 1116 0 1055 6 0 6 6 0 8 0 sosppl 168 4 0 2 1 0 1 1 0 8 0 sockpl 528 681 0 643 6 0 6 6 0 8 3 mcl64k 65536 14 0 14 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 11 0 11 2 1 1 1 0 8 1 mcl4k 4096 2752 0 2700 14 6 8 14 0 8 1 mcl2k 2048 374 0 371 2 0 2 2 0 8 1 mtagpl 96 59 0 9 2 0 2 2 0 8 0 mbufpl 256 10461 0 10249 223 202 21 222 0 8 6 bufpl 280 2828 0 128 193 0 193 193 0 8 0 anonpl 24 129466 0 122001 45 0 45 45 0 187 0 amapchunkpl 152 16802 0 16223 27 0 27 27 0 158 4 amappl16 200 2612 0 2338 23 8 15 15 0 8 0 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 103 0 93 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 1288 0 1258 2 0 2 2 0 8 0 amappl11 160 46 0 36 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 21 0 20 1 0 1 1 0 8 0 amappl7 128 109 0 99 1 0 1 1 0 8 0 amappl6 120 182 0 179 1 0 1 1 0 8 0 amappl5 112 111 0 105 1 0 1 1 0 8 0 amappl4 104 277 0 260 1 0 1 1 0 8 0 amappl3 96 3052 0 2926 4 0 4 4 0 8 0 amappl2 88 610 0 555 2 0 2 2 0 8 0 amappl1 80 8299 0 7777 12 0 12 12 0 8 0 amappl 88 4848 0 4655 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 46 0 5 1 0 1 1 0 8 0 uaddrrnd 24 681 0 651 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 681 0 651 1 0 1 1 0 8 0 vmmpekpl 168 6663 0 6629 2 0 2 2 0 8 0 vmmpepl 168 47137 0 45071 91 1 90 90 0 357 0 vmsppl 360 680 0 651 4 1 3 4 0 8 0 rwobjpl 32 17949 0 14389 29 0 29 29 0 8 0 pdppl 4096 1368 0 1302 94 28 66 78 0 8 0 pvpl 32 317166 0 302849 120 4 116 116 0 265 0 pmappl 216 680 0 651 2 0 2 2 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 473 0 242 13 0 13 13 0 8 2 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833dd5b3) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c0bd010,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806c0bd010,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c981098,1,400000000100,ffff80003c9810c8,0,d08f49dfa263f1b4,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c981094,2,400000000100,ffff80003c9810c8,0,27,1272a23f89760c63) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003812dc58,ffff80003c981200,ffff80003c981150) at sys_sysctl+0x425 syscall(ffff80003c981200) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f6d28ee610, 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(ffffffff833dd5b3) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c0bd010,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806c0bd010,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c981098,1,400000000100,ffff80003c9810c8,0,d08f49dfa263f1b4,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c981094,2,400000000100,ffff80003c9810c8,0,27,1272a23f89760c63) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003812dc58,ffff80003c981200,ffff80003c981150) at sys_sysctl+0x425 syscall(ffff80003c981200) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f6d28ee610, count: -9