panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 55409 61455 0 0 0 0 syz-executor *189311 61455 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343eb5f) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8060db2028,2000003e0000,2000003e1000) at uvm_fault_unwire_locked+0x4de uvm_fault_wire(fffffd8060db2028,2000003e0000,2000003f1000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1766 [inline] uvm_fault_wire(fffffd8060db2028,2000003e0000,2000003f1000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1748 uvm_vslock_device(ffff8000ffff3720,2000003e0040,10000,3,ffff80002a2f23b0) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff814a6560,d02,8000,ffffffff814a6dc0,ffff80002a2f2668) at physio+0x277 sys/kern/kern_physio.c:139 spec_read(ffff80002a2f24d0) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd8079c17a78,ffff80002a2f2668,0,fffffd80097fb0d0) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd806bfe6cc0,ffff80002a2f2668,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff8000ffff3720,3,ffff80002a2f2668,1,ffff80002a2f2720) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_pread(ffff8000ffff3720,ffff80002a2f27d0,ffff80002a2f2720) at sys_pread+0xae sys/kern/vfs_syscalls.c:3303 syscall(ffff80002a2f27d0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2f27d0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:732 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa1351462680, count: 2 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault_unwire_locked: address not in map ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343eb5f) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8060db2028,2000003e0000,2000003e1000) at uvm_fault_unwire_locked+0x4de uvm_fault_wire(fffffd8060db2028,2000003e0000,2000003f1000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1766 [inline] uvm_fault_wire(fffffd8060db2028,2000003e0000,2000003f1000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1748 uvm_vslock_device(ffff8000ffff3720,2000003e0040,10000,3,ffff80002a2f23b0) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff814a6560,d02,8000,ffffffff814a6dc0,ffff80002a2f2668) at physio+0x277 sys/kern/kern_physio.c:139 spec_read(ffff80002a2f24d0) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd8079c17a78,ffff80002a2f2668,0,fffffd80097fb0d0) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd806bfe6cc0,ffff80002a2f2668,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff8000ffff3720,3,ffff80002a2f2668,1,ffff80002a2f2720) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_pread(ffff8000ffff3720,ffff80002a2f27d0,ffff80002a2f2720) at sys_pread+0xae sys/kern/vfs_syscalls.c:3303 syscall(ffff80002a2f27d0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2f27d0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:732 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa1351462680, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a2f20f0 rbx 0xffff8000299dedd7 rdx 0 rcx 0xffff8000ffff3720 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xcf7776bf3a8f8724 r11 0x8f421c2e8b9b2e62 r12 0xffff8000299debd8 r13 0 r14 0 r15 0x1 rip 0xffffffff81d88c15 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a2f20e0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=189311 pid=61455 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=36, usrpri=81, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a297210,0xffff8000ffff39c0 process=0xffff80003b81c500 user=0xffff80002a2ed000, vmspace=0xfffffd8060db2028 estcpu=31, cpticks=4, pctcpu=0.0, user=0, sys=4, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 83831 206753 96642 0 2 0 syz-executor 83831 365968 96642 0 2 0x4000000 syz-executor 16058 369856 65852 0 2 0 syz-executor 16058 363966 65852 0 3 0x4000080 fsleep syz-executor 99704 404490 18974 0 2 0 syz-executor 99704 434083 18974 0 3 0x4000080 fsleep syz-executor 4681 398962 83100 0 2 0 syz-executor 4681 406308 83100 0 3 0x4000080 fsleep syz-executor 6007 503819 79630 0 2 0 syz-executor 6007 147761 79630 0 3 0x4000080 fsleep syz-executor 61455 55409 86101 0 7 0 syz-executor 61455 140411 86101 0 2 0x4000000 syz-executor *61455 189311 86101 0 7 0x4000000 syz-executor 61455 355955 86101 0 3 0x4000080 fsleep syz-executor 6589 456161 2 0 3 0x80 nanoslp syz-executor 6589 245538 2 0 3 0x4000080 pppxread syz-executor 6589 57164 2 0 3 0x4000080 fsleep syz-executor 31493 320357 1 0 3 0x100083 ttyin getty 86101 502439 5018 0 3 0x82 nanoslp syz-executor 18532 510625 0 0 3 0x14200 bored sosplice 83100 84076 5018 0 3 0x82 nanoslp syz-executor 79630 417700 5018 0 3 0x82 nanoslp syz-executor 96642 107492 5018 0 3 0x82 nanoslp syz-executor 18974 202285 5018 0 3 0x82 nanoslp syz-executor 2 80328 5018 0 3 0x82 nanoslp syz-executor 65852 168776 5018 0 3 0x82 nanoslp syz-executor 5018 452050 94662 0 3 0x82 wait syz-executor 94662 163085 12901 0 3 0x10008a sigsusp ksh 12901 508797 22916 0 3 0x98 kqread sshd-session 22916 224159 29668 0 3 0x92 kqread sshd-session 29668 454434 1 0 3 0x88 kqread sshd 26887 421803 35638 74 3 0x1100092 bpf pflogd 35638 95598 1 0 3 0x80 sbwait pflogd 19652 294415 82318 73 3 0x1100090 kqread syslogd 82318 393714 1 0 3 0x100082 sbwait syslogd 61465 199804 1 0 3 0x100080 kqread resolvd 42045 113562 79115 77 3 0x100092 kqread dhcpleased 33059 253793 79115 77 3 0x100092 kqread dhcpleased 79115 454579 1 0 3 0x80 kqread dhcpleased 77401 56691 0 0 3 0x14200 bored smr 55790 287333 0 0 2 0x14200 zerothread 71952 412436 0 0 3 0x14200 aiodoned aiodoned 28748 122577 0 0 3 0x14200 syncer update 69580 116684 0 0 3 0x14200 cleaner cleaner 80439 144738 0 0 3 0x14200 reaper reaper 36728 501608 0 0 3 0x14200 pgdaemon pagedaemon 99750 364218 0 0 3 0x14200 bored viomb 85166 63015 0 0 3 0x40014200 acpi0 acpi0 52686 398389 0 0 3 0x40014200 idle1 6246 217721 0 0 3 0x14200 bored softnet3 78462 25193 0 0 3 0x14200 bored softnet2 79308 286940 0 0 3 0x14200 bored softnet1 87535 109159 0 0 3 0x14200 bored softnet0 87356 371346 0 0 3 0x14200 bored systqmp 19574 512689 0 0 3 0x14200 bored systq 88512 282540 0 0 3 0x14200 tmoslp softclockmp 80446 490718 0 0 3 0x40014200 tmoslp softclock 72785 387527 0 0 3 0x40014200 idle0 1 227289 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 61455 (syz-executor) thread 0xffff8000ffff3720 (189311) shared rwlock vmmaplk r = 0 (0xfffffd8060db2128) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x36e sys/kern/kern_rwlock.c:397 #2 uvm_fault_wire+0x116 uvm_fault_unwire sys/uvm/uvm_fault.c:1765 [inline] #2 uvm_fault_wire+0x116 sys/uvm/uvm_fault.c:1748 #3 uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 #4 physio+0x277 sys/kern/kern_physio.c:139 #5 spec_read+0x155 sys/kern/spec_vnops.c:215 #6 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #7 vn_read+0x17b sys/kern/vfs_vnops.c:369 #8 dofilereadv+0x230 sys/kern/sys_generic.c:252 #9 sys_pread+0xae sys/kern/vfs_syscalls.c:3303 #10 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:732 #11 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8391eba0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2da sys/kern/kern_synch.c:366 #3 rw_do_enter_read+0x2ac sys/kern/kern_rwlock.c:379 #4 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1924 #5 uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 #6 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #7 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1745 #8 uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 #9 physio+0x277 sys/kern/kern_physio.c:139 #10 spec_read+0x155 sys/kern/spec_vnops.c:215 #11 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #12 vn_read+0x17b sys/kern/vfs_vnops.c:369 #13 dofilereadv+0x230 sys/kern/sys_generic.c:252 #14 sys_pread+0xae sys/kern/vfs_syscalls.c:3303 #15 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #15 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:732 #16 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10227 11031K 12554K 166960K 13261 0 pcb 17 15K 17K 166960K 317 0 rtable 196 17K 18K 166960K 931 0 pf 38 18K 83K 166960K 228 0 ifaddr 40 7K 8K 166960K 136 0 ifgroup 51 2K 2K 166960K 187 0 sysctl 3 1K 9K 166960K 14 0 counters 66 36K 37K 166960K 166 0 ioctlops 0 0K 4K 166960K 1633 0 iov 0 0K 16K 166960K 80 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1531 96K 97K 166960K 2773 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 34 0 VM map 2 1K 1K 166960K 2 0 sem 25 10K 15K 166960K 40 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 102K 166960K 1358 0 sigio 1 0K 0K 166960K 22 0 proc 72 91K 140K 166960K 1022 0 subproc 72 4K 4K 166960K 198 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 161 0 in_multi 85 6K 7K 166960K 297 0 ether_multi 1 0K 0K 166960K 11 0 mrt 2 0K 0K 166960K 15 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 721 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 235 163K 174K 166960K 13311 0 UVM aobj 45 2K 2K 166960K 51 0 pinsyscall 42 84K 108K 166960K 2852 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 54 0 NDP 13 0K 2K 166960K 94 0 temp 75 8696K 8770K 166960K 71931 0 kqueue 14 22K 32K 166960K 240 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 120 0 117 1 0 1 1 0 8 0 rtentry 176 284 0 204 6 0 6 6 0 8 0 unpcb 144 729 0 710 9 5 4 6 0 8 3 syncache 336 7 0 7 2 2 0 1 0 8 0 tcpcb 736 310 0 305 8 7 1 7 0 8 0 arp 128 47 0 33 1 0 1 1 0 8 0 inpcb 328 1330 0 1322 17 12 5 12 0 8 4 nd6 144 71 0 51 1 0 1 1 0 8 0 pkpcb 40 11 0 11 3 2 1 1 0 8 1 kcovpl 48 22 0 14 1 0 1 1 0 8 0 ppxss 1192 24 0 24 1 0 1 1 0 8 1 pppxif 1504 3 0 3 3 2 1 1 0 8 1 pffrag 232 7 0 3 1 0 1 1 0 482 0 pffrnode 88 7 0 3 1 0 1 1 0 8 0 pffrent 40 17 0 12 1 0 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 2 0 0 1 0 1 1 0 8 0 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 3 0 0 1 0 1 1 0 8 0 pfstitem 24 88 0 33 1 0 1 1 0 8 0 pfstkey 128 88 0 33 2 0 2 2 0 8 0 pfstate 384 86 0 33 6 0 6 6 0 8 0 pfrule 1344 35 0 24 4 2 2 2 0 8 1 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1199 0 825 29 5 24 29 0 8 0 art_table 32 1200 0 825 4 0 4 4 0 8 0 art_node 16 282 0 211 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 5 2 2 0 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 26 0 3 1 0 1 1 0 8 0 shmpl 112 48 0 6 2 0 2 2 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 3617 0 2077 97 0 97 97 0 8 0 ffsino 288 3617 0 2077 111 0 111 111 0 8 0 nchpl 144 5272 0 3520 66 0 66 66 0 8 0 rtmask 32 6 0 6 1 1 0 1 0 8 0 uvmvnodes 80 4652 0 0 95 0 95 95 0 8 0 vnodes 216 4652 0 0 259 0 259 259 0 8 0 namei 1024 19354 0 19354 2 1 1 2 0 8 1 percpumem 16 98 0 50 1 0 1 1 0 8 0 kstatmem 264 100 0 76 3 1 2 3 0 8 0 scsiplug 72 10 0 10 2 2 0 1 0 8 0 scxspl 216 32187 0 32187 10 9 1 8 1 8 1 plimitpl 152 298 0 281 1 0 1 1 0 8 0 sigapl 424 1639 0 1589 7 1 6 7 0 8 0 knotepl 120 561 0 0 17 0 17 17 0 8 0 kqueuepl 224 425 0 414 6 5 1 5 0 8 0 pipepl 336 222 0 193 3 0 3 3 0 8 0 fdescpl 520 1619 0 1588 3 0 3 3 0 8 0 filepl 160 9783 0 9563 24 7 17 17 0 8 7 lockfpl 104 545 0 543 2 1 1 2 0 8 0 lockfspl 48 246 0 244 1 0 1 1 0 8 0 sessionpl 144 40 0 31 1 0 1 1 0 8 0 pgrppl 48 76 0 59 1 0 1 1 0 8 0 ucredpl 104 1465 0 1452 1 0 1 1 0 8 0 zombiepl 144 1590 0 1589 1 0 1 1 0 8 0 processpl 1240 1639 0 1589 6 1 5 5 0 8 0 procpl 656 3342 0 3282 6 0 6 6 0 8 0 srpgc 96 10 0 10 3 3 0 1 0 8 0 sosppl 168 2 0 2 1 1 0 1 0 8 0 sockpl 728 2236 0 2206 23 12 11 15 0 8 8 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 116 0 0 15 0 15 15 0 8 0 mcl2k 2048 40 0 0 5 0 5 5 0 8 0 mtagpl 96 18 0 0 1 0 1 1 0 8 0 mbufpl 256 1159 0 0 73 0 73 73 0 8 0 bufpl 280 17033 0 10890 439 0 439 439 0 8 0 anonpl 32 10505 0 0 85 0 85 85 0 246 0 amapchunkpl 152 43440 0 42960 33 8 25 29 0 158 2 amappl16 200 5990 0 5959 51 39 12 22 0 8 8 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 150 0 138 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 2511 0 2479 4 1 3 3 0 8 0 amappl11 160 52 0 37 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 280 0 280 1 1 0 1 0 8 0 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 145 0 132 1 0 1 1 0 8 0 amappl6 120 326 0 321 1 0 1 1 0 8 0 amappl5 112 177 0 167 1 0 1 1 0 8 0 amappl4 104 376 0 356 1 0 1 1 0 8 0 amappl3 96 8640 0 8530 5 1 4 4 0 8 0 amappl2 88 895 0 832 2 0 2 2 0 8 0 amappl1 80 14995 0 14386 17 2 15 15 0 8 0 amappl 88 12159 0 11997 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 256 0 256 4 4 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 50 0 6 1 0 1 1 0 8 0 uaddrrnd 24 1619 0 1588 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1619 0 1588 1 0 1 1 0 8 0 vmmpekpl 168 14161 0 14106 3 0 3 3 0 8 0 vmmpepl 168 108342 0 106335 115 11 104 108 0 357 11 vmsppl 480 1618 0 1588 6 1 5 5 0 8 0 rwobjpl 72 35407 0 29776 105 0 105 105 0 8 1 pdppl 4096 3245 0 3176 117 44 73 87 0 8 4 pvpl 32 18039 0 0 146 0 146 146 0 265 0 pmappl 256 1618 0 1588 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 476 0 62 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0