panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *316821 93977 0 0 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83086525) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd807ded5568,20000000,20002000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd807ded5568,20000000,20002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 kern_sysctl(ffff8000303f17f4,5,20000100,ffff8000303f1828,0,37,76e465591ffdecb2) at kern_sysctl+0xbdc sys_sysctl(ffff80002a4e3200,ffff8000303f1960,ffff8000303f18b0) at sys_sysctl+0x422 syscall(ffff8000303f1960) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9e66bd56510, count: 7 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:437 panic(ffffffff83086525) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd807ded5568,20000000,20002000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd807ded5568,20000000,20002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 kern_sysctl(ffff8000303f17f4,5,20000100,ffff8000303f1828,0,37,76e465591ffdecb2) at kern_sysctl+0xbdc sys_sysctl(ffff80002a4e3200,ffff8000303f1960,ffff8000303f18b0) at sys_sysctl+0x422 syscall(ffff8000303f1960) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9e66bd56510, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff8000303f14b0 rbx 0x7f7fffffc000 rdx 0 rcx 0 rax 0xffff80002a4e3200 r8 0x101010101010101 r9 0x8080808080808080 r10 0x2a88fd3fd2825b10 r11 0xedae4921ac59f64f r12 0 r13 0 r14 0 r15 0x1 rip 0xffffffff825bfd45 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000303f14a0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC (syz-executor) tid=316821 pid=93977 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=36, usrpri=76, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a4e27e0,0xffff80002a4e2058 process=0xffff8000ffff9578 user=0xffff8000303ec000, vmspace=0xfffffd807ded5568 estcpu=26, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 40197 43792 73124 0 2 0 syz-executor 40197 115706 73124 0 2 0x4000000 syz-executor 14038 507301 93452 0 2 0 syz-executor 14038 250924 93452 0 2 0x4000000 syz-executor 14038 82635 93452 0 3 0x4000080 fsleep syz-executor 93977 53545 42438 0 2 0 syz-executor *93977 316821 42438 0 7 0x4000000 syz-executor 93977 389646 42438 0 2 0x4000000 syz-executor 74166 65642 99438 0 2 0x81000 syz-executor 74166 510051 99438 0 3 0x4003000 suspend syz-executor 44968 520685 26563 0 3 0x82 piperd syz-executor 72024 496600 26563 0 2 0x2 syz-executor 93452 493371 26563 0 2 0x482 syz-executor 99438 169580 26563 0 3 0x82 wait syz-executor 42438 377079 26563 0 2 0x482 syz-executor 73124 524203 26563 0 2 0x482 syz-executor 27806 213058 26563 0 3 0x82 piperd syz-executor 37838 497207 26563 0 3 0x82 piperd syz-executor 65507 69628 1 0 3 0x100083 ttyin getty 92070 348590 0 0 3 0x14200 acct acct 3492 141449 0 0 3 0x14280 nfsidl nfsio 13800 139776 0 0 3 0x14280 nfsidl nfsio 78248 434285 0 0 3 0x14280 nfsidl nfsio 54985 487113 0 0 3 0x14280 nfsidl nfsio 77970 203277 0 0 3 0x14280 nfsidl nfsio 22266 341944 0 0 3 0x14280 nfsidl nfsio 32599 278342 0 0 3 0x14280 nfsidl nfsio 57655 240450 0 0 3 0x14280 nfsidl nfsio 7914 311300 0 0 3 0x14280 nfsidl nfsio 29395 612 0 0 3 0x14280 nfsidl nfsio 91767 327605 0 0 3 0x14280 nfsidl nfsio 60052 48180 0 0 3 0x14280 nfsidl nfsio 68215 64659 0 0 3 0x14280 nfsidl nfsio 21858 349492 0 0 3 0x14280 nfsidl nfsio 81400 421438 0 0 3 0x14280 nfsidl nfsio 83226 191176 0 0 3 0x14280 nfsidl nfsio 83812 351261 0 0 3 0x14280 nfsidl nfsio 6555 268057 0 0 3 0x14280 nfsidl nfsio 75712 212792 0 0 3 0x14280 nfsidl nfsio 51864 507028 0 0 3 0x14280 nfsidl nfsio 59880 344152 0 0 3 0x14200 bored sosplice 26563 388766 98407 0 2 0x482 syz-executor 98407 349640 36191 0 3 0x10008a sigsusp ksh 36191 261633 56331 0 3 0x98 kqread sshd-session 56331 245399 1 0 3 0x92 kqread sshd-session 12130 345171 51199 73 2 0x1100010 syslogd 51199 173415 1 0 3 0x100082 sbwait syslogd 20347 20355 1 0 3 0x100080 kqread resolvd 72803 9117 47206 77 3 0x100092 kqread dhcpleased 2484 316724 47206 77 3 0x100092 kqread dhcpleased 47206 361269 1 0 3 0x80 kqread dhcpleased 68720 214611 0 0 3 0x14200 bored smr 18452 388427 0 0 2 0x14200 zerothread 61383 375719 0 0 3 0x14200 aiodoned aiodoned 62439 453638 0 0 3 0x14200 syncer update 87404 427418 0 0 3 0x14200 cleaner cleaner 84399 519585 0 0 3 0x14200 reaper reaper 5621 485682 0 0 3 0x14200 pgdaemon pagedaemon 66165 331082 0 0 3 0x14200 bored viomb 46618 173699 0 0 3 0x40014200 acpi0 acpi0 91454 283893 0 0 3 0x14200 bored softnet3 27539 326632 0 0 3 0x14200 bored softnet2 18306 428695 0 0 3 0x14200 bored softnet1 43131 120348 0 0 3 0x14200 bored softnet0 40580 269115 0 0 3 0x14200 bored systqmp 48008 217375 0 0 3 0x14200 bored systq 91204 171509 0 0 3 0x40014200 tmoslp softclock 6507 109302 0 0 3 0x40014200 idle0 1 120895 0 0 3 0x80082 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 10226 14149K 14590K 166960K 20189 0 pcb 17 20K 23K 166960K 1578 0 rtable 236 10K 11K 166960K 9182 0 pf 41 15K 270K 166960K 811 0 ifaddr 43 11K 11K 166960K 1221 0 ifgroup 62 2K 2K 166960K 1355 0 sysctl 4 1K 2K 166960K 20 0 counters 33 17K 18K 166960K 372 0 ioctlops 0 0K 4K 166960K 1193 0 iov 0 0K 32K 166960K 636 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1576 99K 100K 166960K 10034 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 68K 76K 166960K 94 0 VM map 2 1K 1K 166960K 2 0 sem 21 76K 77K 166960K 326 0 dirhash 15 2K 3K 166960K 105 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 14 49K 97K 166960K 9542 0 sigio 0 0K 0K 166960K 450 0 proc 60 59K 124K 166960K 8477 0 subproc 104 6K 8K 166960K 3643 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 814 0 in_multi 92 7K 7K 166960K 3238 0 ether_multi 1 0K 0K 166960K 63 0 mrt 1 0K 0K 166960K 14 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 4740 0 pfkey data 0 0K 0K 166960K 9 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 194 71K 125K 166960K 73039 0 UVM aobj 183 17K 17K 166960K 197 0 pinsyscall 33 66K 100K 166960K 17554 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 332 0 NDP 14 0K 2K 166960K 909 0 temp 83 6816K 6956K 166960K 373532 0 kqueue 12 18K 33K 166960K 970 0 SYN cache 2 2352K 2360K 166960K 3 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 1479 0 1476 5 4 1 3 0 8 0 rtentry 112 3252 0 3153 4 0 4 4 0 8 0 unpcb 144 7063 0 7046 21 19 2 10 0 8 1 syncache 336 28 0 28 3 3 0 1 0 8 0 tcpqe 32 22 0 22 3 3 0 1 0 8 0 tcpcb 808 2269 0 2267 11 10 1 8 0 8 0 arp 88 586 0 567 1 0 1 1 0 8 0 ipq 40 52 0 52 1 0 1 1 0 8 1 ipqe 40 805 0 805 1 0 1 1 0 8 1 inpcb 336 9626 0 9607 27 23 4 16 0 8 0 nd6 104 875 0 853 1 0 1 1 0 8 0 pkpcb 40 62 0 62 3 3 0 1 0 8 0 kcovpl 48 280 0 272 1 0 1 1 0 8 0 ppxss 1072 48 0 48 3 2 1 1 0 8 1 pfstscr 40 2 0 1 1 0 1 1 0 8 0 pfrktable 1344 12 0 12 1 1 0 1 0 8 0 pfanchor 1288 4 0 4 1 1 0 1 0 8 0 pftag 88 4 0 1 1 0 1 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 20 0 17 1 0 1 1 0 8 0 pfstate 344 10 0 8 1 0 1 1 0 8 0 pfrule 1344 10 0 10 2 2 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 12673 0 12258 35 8 27 30 0 8 1 art_table 32 12677 0 12258 4 0 4 4 0 8 0 art_node 16 3236 0 3147 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 319 0 300 1 0 1 1 0 8 0 shmpl 112 194 0 14 6 0 6 6 0 8 0 dirhash 1024 86 0 65 3 0 3 3 0 8 0 dino2pl 256 12503 0 10469 128 0 128 128 0 8 0 ffsino 240 12503 0 10469 120 0 120 120 0 8 0 nchpl 144 21084 0 20160 70 35 35 66 0 8 0 uvmvnodes 80 7521 0 0 154 0 154 154 0 8 0 vnodes 216 7521 0 0 418 0 418 418 0 8 0 namei 1024 103681 0 103680 6 5 1 2 0 8 0 pfiaddrpl 120 4 0 4 1 1 0 1 0 8 0 kstatmem 264 706 0 678 3 0 3 3 0 8 1 scsiplug 72 9 0 9 3 3 0 1 0 8 0 scxspl 216 171700 0 171700 12 10 2 8 1 8 2 plimitpl 152 2250 0 2234 1 0 1 1 0 8 0 sigapl 424 9343 0 9280 10 2 8 8 0 8 0 futexpl 64 88454 0 88453 1 0 1 1 0 8 0 knotepl 120 219955 0 219910 87 78 9 24 0 8 7 kqueuepl 184 2190 0 2182 9 6 3 4 0 8 2 pipepl 288 1818 0 1791 11 8 3 7 0 8 0 fdescpl 432 9283 0 9258 5 1 4 5 0 8 0 filepl 120 60450 0 60081 35 23 12 18 0 8 0 lockfpl 104 3308 0 3306 3 2 1 2 0 8 0 lockfspl 48 1017 0 1015 1 0 1 1 0 8 0 sessionpl 144 309 0 302 1 0 1 1 0 8 0 pgrppl 48 844 0 829 1 0 1 1 0 8 0 ucredpl 104 10271 0 10260 1 0 1 1 0 8 0 zombiepl 144 9445 0 9444 2 1 1 1 0 8 0 processpl 1096 9343 0 9280 7 1 6 6 0 8 0 procpl 648 17593 0 17524 12 5 7 8 0 8 0 sosppl 168 41 0 41 3 3 0 1 0 8 0 sockpl 504 18334 0 18294 169 161 8 34 0 8 0 mcl64k 65536 168 0 168 5 4 1 1 0 8 1 mcl16k 16384 26 0 26 4 3 1 1 0 8 1 mcl12k 12288 1 0 1 1 1 0 1 0 8 0 mcl9k 9216 7 0 7 2 2 0 1 0 8 0 mcl8k 8192 78 0 78 5 4 1 1 0 8 1 mcl4k 4096 24 0 24 4 3 1 1 0 8 1 mcl2k2 2112 5 0 5 2 2 0 1 0 8 0 mcl2k 2048 26070 0 25970 32 17 15 24 0 8 1 mtagpl 96 348 0 344 4 3 1 2 0 8 0 mbufpl 256 107456 0 107228 691 670 21 229 0 8 6 bufpl 280 27841 0 20392 596 24 572 596 0 8 0 anonpl 24 1110175 0 1107008 202 150 52 119 0 187 5 amapchunkpl 152 240198 0 239790 115 84 31 61 0 158 10 amappl16 200 17735 0 17719 173 164 9 27 0 8 7 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 679 0 670 1 0 1 1 0 8 0 amappl13 176 15 0 15 3 2 1 1 0 8 1 amappl12 168 14113 0 14088 3 1 2 3 0 8 0 amappl11 160 75 0 65 1 0 1 1 0 8 0 amappl10 152 8 0 7 1 0 1 1 0 8 0 amappl9 144 150 0 150 1 1 0 1 0 8 0 amappl8 136 23 0 21 1 0 1 1 0 8 0 amappl7 128 657 0 647 1 0 1 1 0 8 0 amappl6 120 2811 0 2809 1 0 1 1 0 8 0 amappl5 112 1207 0 1197 1 0 1 1 0 8 0 amappl4 104 1182 0 1167 1 0 1 1 0 8 0 amappl3 96 46538 0 46450 6 3 3 4 0 8 0 amappl2 88 4581 0 4525 2 0 2 2 0 8 0 amappl1 80 55297 0 54875 17 6 11 15 0 8 1 amappl 88 70054 0 69910 5 0 5 5 0 92 0 dma32768 32768 2 0 2 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 9 0 9 2 2 0 1 0 8 0 dma128 128 254 0 254 2 2 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 40 0 40 2 2 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 196 0 14 4 0 4 4 0 8 0 uaddrrnd 24 9283 0 9258 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9283 0 9258 1 0 1 1 0 8 0 vmmpekpl 168 70684 0 70625 4 0 4 4 0 8 0 vmmpepl 168 556857 0 555423 125 48 77 94 0 357 4 vmsppl 344 9282 0 9258 5 2 3 4 0 8 0 rwobjpl 24 148536 0 140114 53 0 53 53 0 8 0 pdppl 4096 18572 0 18516 599 535 64 82 0 8 8 pvpl 32 4437410 0 4428637 944 728 216 505 0 265 105 pmappl 216 9282 0 9258 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1864 0 1460 19 4 15 19 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:437 panic(ffffffff83086525) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd807ded5568,20000000,20002000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd807ded5568,20000000,20002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 kern_sysctl(ffff8000303f17f4,5,20000100,ffff8000303f1828,0,37,76e465591ffdecb2) at kern_sysctl+0xbdc sys_sysctl(ffff80002a4e3200,ffff8000303f1960,ffff8000303f18b0) at sys_sysctl+0x422 syscall(ffff8000303f1960) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9e66bd56510, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83086525) at panic+0x1cf sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd807ded5568,20000000,20002000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd807ded5568,20000000,20002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 kern_sysctl(ffff8000303f17f4,5,20000100,ffff8000303f1828,0,37,76e465591ffdecb2) at kern_sysctl+0xbdc sys_sysctl(ffff80002a4e3200,ffff8000303f1960,ffff8000303f18b0) at sys_sysctl+0x422 syscall(ffff8000303f1960) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9e66bd56510, count: -8