panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 89510 10481 0 0 0 1 syz-executor * 59461 10481 0 0 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8340b8df) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bcc8020,400000001000,400000002000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806bcc8020,400000001000,400000002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 sysctl_vsunlock(4000000018c0,270) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 sys_sysctl(ffff80003c5a8558,ffff80003c5afca0,ffff80003c5afbf0) at sys_sysctl+0x460 sys/kern/kern_sysctl.c:309 syscall(ffff80003c5afca0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5afca0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1faf0d26980, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault_unwire_locked: address not in map ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8340b8df) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bcc8020,400000001000,400000002000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806bcc8020,400000001000,400000002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 sysctl_vsunlock(4000000018c0,270) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 sys_sysctl(ffff80003c5a8558,ffff80003c5afca0,ffff80003c5afbf0) at sys_sysctl+0x460 sys/kern/kern_sysctl.c:309 syscall(ffff80003c5afca0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5afca0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1faf0d26980, count: -8 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c5af960 rbx 0xffffffff83838dc7 cpu_info_full_primary+0x2dc7 rdx 0 rcx 0xffff80003c5a8558 rax 0xffffffff83837ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xdd2317f1dda55348 r11 0xaa3f0e7fff455c6a r12 0xffffffff83838bc8 cpu_info_full_primary+0x2bc8 r13 0 r14 0 r15 0x1 rip 0xffffffff82a68bc5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c5af950 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=59461 pid=10481 tcnt=5 stat=onproc flags process=0 proc=4000000 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c5a87e8,0xffff80003c5a8a88 process=0xffff8000ffff4020 user=0xffff80003c5aa000, vmspace=0xfffffd806bcc8020 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 25742 173892 55509 0 2 0 syz-executor 25742 245993 55509 0 3 0x4000080 fsleep syz-executor 16983 159256 83092 0 2 0 syz-executor 16983 357557 83092 0 3 0x4000080 fsleep syz-executor 13577 322672 75995 0 2 0 syz-executor 13577 269623 75995 0 3 0x4000080 fsleep syz-executor 10481 89510 31647 0 7 0 syz-executor 10481 517546 31647 0 2 0x4000000 syz-executor *10481 59461 31647 0 7 0x4000000 syz-executor 10481 165758 31647 0 2 0x4000000 syz-executor 10481 241024 31647 0 2 0x4000000 syz-executor 28748 256390 77205 0 2 0 syz-executor 28748 186278 77205 0 3 0x4000080 fsleep syz-executor 28748 95553 77205 0 3 0x4000080 fsleep syz-executor 86255 5973 28506 0 2 0 syz-executor 86255 309172 28506 0 3 0x4000080 fsleep syz-executor 32244 68133 36435 0 3 0x80 nanoslp syz-executor 32244 498646 36435 0 3 0x4000080 fsleep syz-executor 32244 147195 36435 0 2 0x4000000 syz-executor 32244 188896 36435 0 2 0x4000000 syz-executor 98465 478032 64593 0 2 0x2 syz-executor 84508 222052 0 0 3 0x14200 acct acct 28506 36007 64593 0 2 0x2 syz-executor 81110 301887 1 0 3 0x80 nanoslp init 60190 433383 0 0 3 0x14280 nfsidl nfsio 98830 78283 0 0 3 0x14280 nfsidl nfsio 84163 120348 0 0 3 0x14280 nfsidl nfsio 18540 116970 0 0 3 0x14280 nfsidl nfsio 57845 211340 0 0 3 0x14280 nfsidl nfsio 5816 28563 0 0 3 0x14280 nfsidl nfsio 73151 115935 0 0 3 0x14280 nfsidl nfsio 7183 281876 0 0 3 0x14280 nfsidl nfsio 79024 190715 0 0 3 0x14280 nfsidl nfsio 88427 357049 0 0 3 0x14280 nfsidl nfsio 5968 132875 0 0 3 0x14280 nfsidl nfsio 13805 131936 0 0 3 0x14280 nfsidl nfsio 57917 266828 0 0 3 0x14280 nfsidl nfsio 96095 302924 0 0 3 0x14280 nfsidl nfsio 14707 328206 0 0 3 0x14280 nfsidl nfsio 3760 182949 0 0 3 0x14280 nfsidl nfsio 20192 56715 0 0 3 0x14280 nfsidl nfsio 38497 227391 0 0 3 0x14280 nfsidl nfsio 80041 159549 0 0 3 0x14280 nfsidl nfsio 91203 170935 0 0 3 0x14280 nfsidl nfsio 59019 136601 0 0 3 0x14200 bored sosplice 36435 54457 64593 0 2 0x2 syz-executor 75995 388137 64593 0 3 0x82 nanoslp syz-executor 31647 327078 64593 0 3 0x82 nanoslp syz-executor 55509 253343 64593 0 3 0x82 nanoslp syz-executor 77205 145435 64593 0 3 0x82 nanoslp syz-executor 83092 457883 64593 0 3 0x82 nanoslp syz-executor 64593 272396 27556 0 3 0x82 kqread syz-executor 27556 49197 79417 0 3 0x10008a sigsusp ksh 79417 487914 41111 0 3 0x98 kqread sshd-session 41111 183056 17573 0 3 0x92 kqread sshd-session 17573 182398 1 0 3 0x88 kqread sshd 27959 228263 49164 74 3 0x1100092 bpf pflogd 49164 520182 1 0 3 0x80 sbwait pflogd 94168 382235 86704 73 3 0x1100090 kqread syslogd 86704 131988 1 0 3 0x100082 sbwait syslogd 73305 140851 1 0 3 0x100080 kqread resolvd 34993 394957 45695 77 3 0x100092 kqread dhcpleased 37478 86155 45695 77 3 0x100092 kqread dhcpleased 45695 276811 1 0 3 0x80 kqread dhcpleased 48571 493264 0 0 3 0x14200 bored smr 75971 153959 0 0 2 0x14200 zerothread 18899 178496 0 0 3 0x14200 aiodoned aiodoned 49872 11989 0 0 3 0x14200 syncer update 18651 41286 0 0 3 0x14200 cleaner cleaner 26513 67897 0 0 3 0x14200 reaper reaper 76785 161230 0 0 3 0x14200 pgdaemon pagedaemon 59847 132298 0 0 3 0x14200 bored viomb 16244 60463 0 0 3 0x40014200 acpi0 acpi0 58380 491819 0 0 3 0x40014200 idle1 43807 263729 0 0 3 0x14200 bored softnet3 30837 494467 0 0 3 0x14200 bored softnet2 68460 191387 0 0 3 0x14200 bored softnet1 80880 335869 0 0 3 0x14200 bored softnet0 27042 142548 0 0 3 0x14200 bored systqmp 72672 520202 0 0 3 0x14200 bored systq 42984 197192 0 0 3 0x14200 tmoslp softclockmp 1938 129222 0 0 3 0x40014200 tmoslp softclock 4802 434622 0 0 3 0x40014200 idle0 1 437548 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 10481 (syz-executor) thread 0xffff80003c5a8558 (59461) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10228 11092K 11457K 166960K 13262 0 pcb 18 14K 16K 166960K 289 0 rtable 200 9K 10K 166960K 546 0 pf 35 18K 20K 166960K 141 0 ifaddr 36 6K 8K 166960K 102 0 ifgroup 47 2K 2K 166960K 165 0 sysctl 4 1K 1K 166960K 4 0 counters 60 35K 37K 166960K 320 0 ioctlops 0 0K 4K 166960K 1770 0 iov 0 0K 18K 166960K 97 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1399 88K 88K 166960K 2400 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 19 0 VM map 2 1K 1K 166960K 2 0 sem 24 11K 11K 166960K 73 0 dirhash 15 2K 3K 166960K 45 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 236K 166960K 1260 0 sigio 1 0K 0K 166960K 25 0 proc 69 103K 128K 166960K 714 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 167 0 in_multi 80 5K 7K 166960K 155 0 ether_multi 1 0K 0K 166960K 6 0 mrt 0 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 820 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 233 73K 86K 166960K 13406 0 UVM aobj 13 2K 4K 166960K 15 0 pinsyscall 42 84K 106K 166960K 2455 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 64 0 NDP 10 0K 2K 166960K 68 0 temp 77 8644K 8720K 166960K 35590 0 kqueue 13 20K 32K 166960K 196 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 205 0 202 4 2 2 3 0 8 1 rtentry 112 164 0 80 4 0 4 4 0 8 0 unpcb 144 1189 0 1170 12 8 4 6 0 8 3 syncache 336 9 0 9 3 2 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 480 0 474 17 13 4 8 0 8 3 arp 120 26 0 11 1 0 1 1 0 8 0 inpcb 376 1440 0 1428 21 11 10 12 0 8 8 nd6 136 32 0 12 1 0 1 1 0 8 0 pkpcb 40 6 0 6 4 3 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1168 113 0 113 2 1 1 1 0 8 1 pppxif 1472 79 0 79 4 3 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 4 0 1 1 0 1 1 0 482 0 pffrnode 88 4 0 1 1 0 1 1 0 8 0 pffrent 40 6 0 3 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 1 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 81 0 30 1 0 1 1 0 8 0 pfstkey 128 85 0 35 2 0 2 2 0 8 0 pfstate 376 81 0 32 6 0 6 6 0 8 0 pfrule 1344 42 0 31 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 682 0 300 30 0 30 30 0 8 3 art_table 32 684 0 300 4 0 4 4 0 8 0 art_node 16 158 0 83 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 10 1 0 1 1 0 8 0 semupl 112 2 0 2 2 1 1 1 0 8 1 semapl 112 67 0 45 1 0 1 1 0 8 0 shmpl 112 12 0 2 2 1 1 1 0 8 0 dirhash 1024 40 0 21 3 0 3 3 0 8 0 dino2pl 256 3669 0 2160 96 0 96 96 0 8 0 ffsino 280 3669 0 2160 109 0 109 109 0 8 0 nchpl 144 5441 0 3742 64 0 64 64 0 8 0 rtmask 32 8 0 8 3 3 0 1 0 8 0 uvmvnodes 80 4374 0 0 90 0 90 90 0 8 0 vnodes 216 4374 0 0 243 0 243 243 0 8 0 namei 1024 19909 0 19909 2 1 1 1 0 8 1 percpumem 16 174 0 130 1 0 1 1 0 8 0 kstatmem 264 94 0 74 2 0 2 2 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 4 0 4 2 2 0 1 0 8 0 scxspl 216 16445 0 16445 14 10 4 8 1 8 4 plimitpl 152 306 0 289 1 0 1 1 0 8 0 sigapl 424 1585 0 1513 9 0 9 9 0 8 0 futexpl 64 16963 0 16956 1 0 1 1 0 8 0 knotepl 120 781 0 0 24 0 24 24 0 8 0 kqueuepl 216 388 0 378 3 2 1 3 0 8 0 pipepl 328 375 0 348 16 8 8 8 0 8 5 fdescpl 504 1544 0 1512 6 1 5 6 0 8 0 filepl 152 11224 0 11001 33 16 17 20 0 8 8 lockfpl 104 319 0 316 1 0 1 1 0 8 0 lockfspl 48 133 0 130 1 0 1 1 0 8 0 sessionpl 144 31 0 23 1 0 1 1 0 8 0 pgrppl 48 53 0 37 1 0 1 1 0 8 0 ucredpl 104 1666 0 1652 1 0 1 1 0 8 0 zombiepl 144 1514 0 1513 1 0 1 1 0 8 0 processpl 1176 1585 0 1513 6 0 6 6 0 8 0 procpl 656 3472 0 3387 8 0 8 8 0 8 0 srpgc 96 8 0 8 2 1 1 1 0 8 1 sosppl 168 8 0 8 3 3 0 1 0 8 0 sockpl 688 2856 0 2823 48 36 12 21 0 8 8 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 116 0 0 15 0 15 15 0 8 1 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 33 0 0 4 0 4 4 0 8 0 mtagpl 96 43 0 0 2 0 2 2 0 8 0 mbufpl 256 265 0 0 17 0 17 17 0 8 0 bufpl 280 6370 0 216 440 0 440 440 0 8 0 anonpl 24 211189 0 207736 59 20 39 46 0 184 12 amapchunkpl 152 42700 0 42178 28 5 23 27 0 158 1 amappl16 200 4180 0 4143 30 23 7 15 0 8 4 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 134 0 123 1 0 1 1 0 8 0 amappl13 176 4 0 4 2 1 1 1 0 8 1 amappl12 168 2241 0 2210 3 1 2 2 0 8 0 amappl11 160 68 0 54 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 247 0 247 1 1 0 1 0 8 0 amappl8 136 22 0 19 1 0 1 1 0 8 0 amappl7 128 123 0 112 1 0 1 1 0 8 0 amappl6 120 223 0 219 1 0 1 1 0 8 0 amappl5 112 136 0 125 1 0 1 1 0 8 0 amappl4 104 371 0 353 1 0 1 1 0 8 0 amappl3 96 8782 0 8664 4 0 4 4 0 8 0 amappl2 88 757 0 695 2 0 2 2 0 8 0 amappl1 80 12881 0 12336 15 2 13 14 0 8 0 amappl 88 12894 0 12715 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 0 8 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 7 0 7 2 2 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 14 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1544 0 1512 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1544 0 1512 1 0 1 1 0 8 0 vmmpekpl 168 14722 0 14680 3 0 3 3 0 8 0 vmmpepl 168 99678 0 97785 101 11 90 94 0 357 5 vmsppl 456 1543 0 1512 5 0 5 5 0 8 0 rwobjpl 64 32422 0 27126 86 0 86 86 0 8 0 pdppl 4096 3095 0 3024 125 54 71 87 0 8 0 pvpl 32 14895 0 0 122 2 120 120 0 265 0 pmappl 248 1543 0 1512 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 330 0 76 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8340b8df) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bcc8020,400000001000,400000002000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806bcc8020,400000001000,400000002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 sysctl_vsunlock(4000000018c0,270) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 sys_sysctl(ffff80003c5a8558,ffff80003c5afca0,ffff80003c5afbf0) at sys_sysctl+0x460 sys/kern/kern_sysctl.c:309 syscall(ffff80003c5afca0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5afca0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1faf0d26980, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029a9bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff839df6c0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839df6c0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff80002a444bc0) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a444bc0) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79f473f9dcb0, count: 8 ddb{1}> trace x86_ipi_db(ffff800029a9bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff839df6c0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839df6c0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff80002a444bc0) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a444bc0) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79f473f9dcb0, count: -7