panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *274730 53522 0 0x1000 0x4080000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833d513a) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c0bf010,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806c0bf010,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c961ca8,1,400000000100,ffff80003c961cd8,0,a4d4b7faaa111d91,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c961ca4,2,400000000100,ffff80003c961cd8,0,27,a2932fa953b197d9) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80002a7e02a0,ffff80003c961e10,ffff80003c961d60) at sys_sysctl+0x425 syscall(ffff80003c961e10) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x787fbf7cb00, 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(ffffffff833d513a) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c0bf010,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806c0bf010,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c961ca8,1,400000000100,ffff80003c961cd8,0,a4d4b7faaa111d91,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c961ca4,2,400000000100,ffff80003c961cd8,0,27,a2932fa953b197d9) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80002a7e02a0,ffff80003c961e10,ffff80003c961d60) at sys_sysctl+0x425 syscall(ffff80003c961e10) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x787fbf7cb00, count: -9 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80003c9618b0 rbx 0xe rdx 0xffff80000150ac00 rcx 0 rax 0xffff80002a7e02a0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x45988670150a75da r11 0x697f5532f2d1c9cf r12 0 r13 0x7f7fffffc000 r14 0 r15 0x1 rip 0xffffffff815c8bb5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c9618a0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC (syz-executor) tid=274730 pid=53522 tcnt=2 stat=onproc flags process=1000 proc=4080000 runpri=32, usrpri=81, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c9dd220 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c9dd220,0xffff80002a7bc2b8 process=0xffff8000ffff5a28 user=0xffff80003c95c000, vmspace=0xfffffd806c0bf010 estcpu=31, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 92244 263698 31720 60928 2 0x10 syz-executor 92244 71899 31720 60928 3 0x4000090 fsleep syz-executor 76302 441296 32518 0 2 0 syz-executor 76302 503126 32518 0 3 0x4000080 ttyopn syz-executor 67632 347298 22323 0 2 0 syz-executor 67632 97100 22323 0 3 0x4000080 fsleep syz-executor 86419 25181 91543 0 2 0 syz-executor 86419 355470 91543 0 3 0x4000080 nanoslp syz-executor 16270 175659 92293 0 3 0x80 nanoslp syz-executor 16270 438368 92293 0 3 0x4000080 sysctllk syz-executor 16270 149849 92293 0 3 0x4000080 fsleep syz-executor 16270 332002 92293 0 3 0x4000080 fsleep syz-executor 42828 222392 76083 0 3 0x80 nanoslp syz-executor 42828 172370 76083 0 3 0x4000080 sysctllk syz-executor 42828 47178 76083 0 3 0x4000080 sysctllk syz-executor 42828 449338 76083 0 3 0x4000080 fsleep syz-executor 81350 284072 90401 0 3 0x80 nanoslp syz-executor 81350 136486 90401 0 3 0x4000080 sysctllk syz-executor 81350 299313 90401 0 3 0x4000080 fsleep syz-executor 53522 181944 84119 0 3 0x3000 suspend syz-executor *53522 274730 84119 0 7 0x4081000 syz-executor 13208 150411 1 0 3 0x100083 ttyin getty 84119 492147 60137 0 3 0x82 nanoslp syz-executor 22323 25819 60137 0 3 0x82 nanoslp syz-executor 80866 294620 0 0 3 0x14200 bored sosplice 91543 157462 60137 0 3 0x82 nanoslp syz-executor 90401 101917 60137 0 3 0x82 nanoslp syz-executor 31720 222710 60137 0 3 0x82 nanoslp syz-executor 32518 151202 60137 0 3 0x82 nanoslp syz-executor 76083 353706 60137 0 3 0x82 nanoslp syz-executor 92293 93017 60137 0 3 0x82 nanoslp syz-executor 60137 356928 59819 0 3 0x82 kqread syz-executor 59819 75367 12775 0 3 0x10008a sigsusp ksh 12775 401271 95864 0 3 0x98 kqread sshd-session 95864 167304 73923 0 3 0x92 kqread sshd-session 73923 142392 1 0 3 0x88 kqread sshd 12971 169955 87766 73 3 0x1100090 kqread syslogd 87766 288324 1 0 3 0x100082 sbwait syslogd 50531 75418 1 0 3 0x100080 kqread resolvd 45001 361099 95059 77 3 0x100092 kqread dhcpleased 12003 74376 95059 77 3 0x100092 kqread dhcpleased 95059 170660 1 0 3 0x80 kqread dhcpleased 46740 141755 0 0 3 0x14200 bored smr 453 103559 0 0 2 0x14200 zerothread 91937 191774 0 0 3 0x14200 aiodoned aiodoned 9929 471879 0 0 3 0x14200 syncer update 7038 450147 0 0 3 0x14200 cleaner cleaner 28406 515828 0 0 3 0x14200 reaper reaper 34926 450452 0 0 3 0x14200 pgdaemon pagedaemon 98565 276170 0 0 3 0x14200 bored viomb 31263 85876 0 0 3 0x40014200 acpi0 acpi0 40972 332329 0 0 3 0x14200 bored softnet3 88512 251405 0 0 3 0x14200 bored softnet2 84318 293194 0 0 3 0x14200 bored softnet1 32377 160305 0 0 3 0x14200 bored softnet0 50480 287158 0 0 3 0x14200 bored systqmp 60770 431759 0 0 3 0x14200 bored systq 73309 400561 0 0 3 0x40014200 tmoslp softclock 22881 519019 0 0 3 0x40014200 idle0 1 203120 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 10190 11177K 11570K 166960K 12323 0 pcb 17 16K 21K 166960K 443 0 rtable 211 11K 12K 166960K 514 0 pf 31 13K 20K 166960K 106 0 ifaddr 37 6K 7K 166960K 71 0 ifgroup 50 2K 2K 166960K 104 0 sysctl 3 1K 1K 166960K 3 0 counters 30 17K 17K 166960K 50 0 ioctlops 0 0K 4K 166960K 444 0 iov 0 0K 16K 166960K 35 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1455 91K 92K 166960K 1980 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 20 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 19 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 20 94K 240K 166960K 719 0 sigio 0 0K 0K 166960K 15 0 proc 60 59K 124K 166960K 613 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 66 0 in_multi 87 6K 7K 166960K 139 0 ether_multi 1 0K 0K 166960K 4 0 mrt 1 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 506 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 228 72K 86K 166960K 7698 0 UVM aobj 86 3K 3K 166960K 90 0 pinsyscall 39 78K 96K 166960K 1777 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 62 0 NDP 11 0K 2K 166960K 47 0 temp 57 8679K 8773K 166960K 19735 0 kqueue 13 20K 28K 166960K 128 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 120 122 0 118 2 0 2 2 0 8 1 rtentry 128 157 0 66 4 0 4 4 0 8 0 unpcb 144 576 0 559 7 3 4 4 0 8 3 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpqe 32 11 0 11 1 1 0 1 0 8 0 tcpcb 808 171 0 166 8 0 8 8 0 8 7 arp 88 33 0 10 1 0 1 1 0 8 0 ipq 40 7 0 2 2 1 1 1 0 8 0 ipqe 40 54 0 49 2 1 1 1 0 8 0 inpcb 344 994 0 978 25 16 9 14 0 8 7 nd6 104 34 0 12 1 0 1 1 0 8 0 pkpcb 40 2 0 2 2 1 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1072 12 0 12 1 0 1 1 0 8 1 pppxif 1384 1 0 1 1 1 0 1 0 8 0 pfstscr 40 4 0 4 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 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 655 0 218 31 2 29 29 0 8 1 art_table 32 657 0 218 4 0 4 4 0 8 0 art_node 16 155 0 75 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 10 2 1 1 1 0 8 0 semapl 112 15 0 5 1 0 1 1 0 8 0 shmpl 112 87 0 4 3 0 3 3 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2603 0 1106 95 0 95 95 0 8 0 ffsino 248 2603 0 1106 95 0 95 95 0 8 0 nchpl 144 3646 0 3103 63 33 30 63 0 8 8 rtmask 32 1 0 1 1 0 1 1 0 8 1 uvmvnodes 80 3124 0 0 64 0 64 64 0 8 0 vnodes 216 3124 0 0 174 0 174 174 0 8 0 namei 1024 13072 0 13072 4 2 2 2 0 8 2 kstatmem 264 54 0 32 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 11167 0 11167 10 2 8 8 1 8 8 plimitpl 152 236 0 219 1 0 1 1 0 8 0 sigapl 424 994 0 947 8 0 8 8 0 8 2 futexpl 64 9089 0 9083 1 0 1 1 0 8 0 knotepl 120 32673 0 32626 12 2 10 10 0 8 7 kqueuepl 184 340 0 329 7 3 4 4 0 8 3 pipepl 296 184 0 157 5 0 5 5 0 8 2 fdescpl 440 957 0 927 5 1 4 5 0 8 0 filepl 120 6201 0 5981 19 4 15 15 0 8 7 lockfpl 104 484 0 482 3 1 2 2 0 8 1 lockfspl 48 107 0 105 1 0 1 1 0 8 0 sessionpl 144 24 0 16 1 0 1 1 0 8 0 pgrppl 48 37 0 21 1 0 1 1 0 8 0 ucredpl 104 708 0 696 1 0 1 1 0 8 0 zombiepl 144 948 0 947 1 0 1 1 0 8 0 processpl 1112 994 0 947 5 0 5 5 0 8 0 procpl 656 1833 0 1773 7 0 7 7 0 8 1 sosppl 168 3 0 3 1 1 0 1 0 8 0 sockpl 528 1701 0 1667 25 15 10 16 0 8 7 mcl64k 65536 49 0 49 2 1 1 1 0 8 1 mcl16k 16384 3 0 3 1 0 1 1 0 8 1 mcl8k 8192 12 0 12 2 1 1 1 0 8 1 mcl4k 4096 3117 0 3067 14 6 8 13 0 8 1 mcl2k 2048 674 0 669 5 2 3 3 0 8 1 mtagpl 96 70 0 13 2 0 2 2 0 8 0 mbufpl 256 10854 0 10657 35 14 21 24 0 8 5 bufpl 280 3399 0 125 234 0 234 234 0 8 0 anonpl 24 137861 0 134561 44 0 44 44 0 187 21 amapchunkpl 152 25706 0 25187 38 3 35 35 0 158 14 amappl16 200 2264 0 2229 15 5 10 15 0 8 7 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 113 0 103 1 0 1 1 0 8 0 amappl13 176 6 0 5 1 0 1 1 0 8 0 amappl12 168 1609 0 1579 3 1 2 3 0 8 0 amappl11 160 42 0 32 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 265 0 265 1 1 0 1 0 8 0 amappl8 136 34 0 32 1 0 1 1 0 8 0 amappl7 128 115 0 104 1 0 1 1 0 8 0 amappl6 120 218 0 214 1 0 1 1 0 8 0 amappl5 112 138 0 131 1 0 1 1 0 8 0 amappl4 104 283 0 268 1 0 1 1 0 8 0 amappl3 96 4785 0 4668 4 0 4 4 0 8 0 amappl2 88 650 0 593 2 0 2 2 0 8 0 amappl1 80 9249 0 8727 13 1 12 13 0 8 0 amappl 88 7286 0 7107 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 dma512 512 1 0 1 1 1 0 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 89 0 4 2 0 2 2 0 8 0 uaddrrnd 24 957 0 927 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 957 0 927 1 0 1 1 0 8 0 vmmpekpl 168 8933 0 8892 3 0 3 3 0 8 0 vmmpepl 168 62373 0 60562 89 0 89 89 0 357 9 vmsppl 360 956 0 927 4 1 3 4 0 8 0 rwobjpl 32 21221 0 17138 33 0 33 33 0 8 0 pdppl 4096 1920 0 1854 100 34 66 82 0 8 0 pvpl 32 401449 0 392379 106 0 106 106 0 265 24 pmappl 216 956 0 927 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 307 0 66 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(ffffffff833d513a) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c0bf010,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806c0bf010,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c961ca8,1,400000000100,ffff80003c961cd8,0,a4d4b7faaa111d91,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c961ca4,2,400000000100,ffff80003c961cd8,0,27,a2932fa953b197d9) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80002a7e02a0,ffff80003c961e10,ffff80003c961d60) at sys_sysctl+0x425 syscall(ffff80003c961e10) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x787fbf7cb00, 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(ffffffff833d513a) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c0bf010,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806c0bf010,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(4e,ffff80003c961ca8,1,400000000100,ffff80003c961cd8,0,a4d4b7faaa111d91,1) at kern_sysctl_dirs+0x5d1 kern_sysctl(ffff80003c961ca4,2,400000000100,ffff80003c961cd8,0,27,a2932fa953b197d9) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80002a7e02a0,ffff80003c961e10,ffff80003c961d60) at sys_sysctl+0x425 syscall(ffff80003c961e10) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x787fbf7cb00, count: -9