uvm_fault(0xfffffd807007f458, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at VOP_LOCK+0x7c: movq 0(%rax),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *219633 77998 0 0x2 0 0 syz-executor VOP_LOCK(fffffd8069c45640,1) at VOP_LOCK+0x7c sys/kern/vfs_vops.c:524 vn_lock(fffffd8069c45640,1) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vget(fffffd8069c45640,1) at vget+0x2a2 sys/kern/vfs_subr.c:686 ufs_ihashget(400,13403) at ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 ffs_vget(ffff800000b58800,13403,ffff80002a88aae0) at ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd806cf851e8,ffff80002a88af30,ffff80002a88af60) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002a88af00) at vfs_lookup+0x921 sys/kern/vfs_lookup.c:566 namei(ffff80002a88af00) at namei+0x7ca sys/kern/vfs_lookup.c:250 vn_open(ffff80002a88af00,30001,0) at vn_open+0x15a sys/kern/vfs_vnops.c:140 doopenat(ffff80002a776008,ffffff9c,713439a751b0,30000,0,ffff80002a88b0a0) at doopenat+0x34d sys/kern/vfs_syscalls.c:1138 syscall(ffff80002a88b150) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a88b150) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x713439a74cb0, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xfffffd807007f458, 0x0, 0, 1) -> e ddb> trace VOP_LOCK(fffffd8069c45640,1) at VOP_LOCK+0x7c sys/kern/vfs_vops.c:524 vn_lock(fffffd8069c45640,1) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vget(fffffd8069c45640,1) at vget+0x2a2 sys/kern/vfs_subr.c:686 ufs_ihashget(400,13403) at ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 ffs_vget(ffff800000b58800,13403,ffff80002a88aae0) at ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd806cf851e8,ffff80002a88af30,ffff80002a88af60) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002a88af00) at vfs_lookup+0x921 sys/kern/vfs_lookup.c:566 namei(ffff80002a88af00) at namei+0x7ca sys/kern/vfs_lookup.c:250 vn_open(ffff80002a88af00,30001,0) at vn_open+0x15a sys/kern/vfs_vnops.c:140 doopenat(ffff80002a776008,ffffff9c,713439a751b0,30000,0,ffff80002a88b0a0) at doopenat+0x34d sys/kern/vfs_syscalls.c:1138 syscall(ffff80002a88b150) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a88b150) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x713439a74cb0, count: -13 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002a88a890 rbx 0x1 rdx 0 rcx 0 rax 0 r8 0x30 r9 0xfffffd8007bfd750 r10 0x88047d2e981b567c r11 0x16ec39078f43d35c r12 0 r13 0 r14 0xfffffd8069c45640 r15 0 rip 0xffffffff828e1d8c VOP_LOCK+0x7c cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80002a88a850 ss 0x10 VOP_LOCK+0x7c: movq 0(%rax),%r14 ddb> show proc PROC (syz-executor) tid=219633 pid=77998 tcnt=1 stat=onproc flags process=2 proc=0 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a777230,0xffff80002a776d10 process=0xffff80002a7ded10 user=0xffff80002a886000, vmspace=0xfffffd807007f458 estcpu=36, cpticks=15, pctcpu=0.0, user=0, sys=15, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 30711 272332 58385 0 2 0 syz-executor 30711 436972 58385 0 3 0x4000080 fsleep syz-executor 28948 449677 47235 0 3 0x80 nanoslp syz-executor 28948 58319 47235 0 3 0x4000080 kqread syz-executor 83079 193763 15383 0 2 0 syz-executor 83079 72408 15383 0 3 0x4000080 fsleep syz-executor 18693 279933 18718 0 3 0x1000080 nanoslp syz-executor 18693 99798 18718 0 3 0x5000080 fifor syz-executor 18693 376147 18718 0 3 0x5000080 fsleep syz-executor 18693 20107 18718 0 3 0x5000080 fsleep syz-executor 29660 21025 45098 0 3 0x80 nanoslp syz-executor 29660 116785 45098 0 3 0x4000080 msgwait syz-executor 29660 203340 45098 0 3 0x4000080 fsleep syz-executor 12491 221719 78673 0 3 0x80 nanoslp syz-executor 12491 496700 78673 0 3 0x4000080 ttyout syz-executor 12491 21655 78673 0 3 0x4000080 fsleep syz-executor 37162 400068 91178 0 3 0x90 nanoslp syz-executor 37162 334803 91178 0 3 0x4000090 netcon syz-executor 37162 392508 91178 0 3 0x4000090 fsleep syz-executor 84898 151349 1 0 3 0x100083 ttyin getty 41447 497345 0 0 3 0x14280 nfsidl nfsio 87987 494403 0 0 3 0x14280 nfsidl nfsio 81620 61814 0 0 3 0x14280 nfsidl nfsio 79646 174115 0 0 3 0x14280 nfsidl nfsio 24922 303613 0 0 3 0x14280 nfsidl nfsio 30395 498695 0 0 3 0x14280 nfsidl nfsio 64119 397305 0 0 3 0x14280 nfsidl nfsio 28798 327288 0 0 3 0x14280 nfsidl nfsio 54919 249147 0 0 3 0x14280 nfsidl nfsio 3941 304744 0 0 3 0x14280 nfsidl nfsio 49214 496535 0 0 3 0x14280 nfsidl nfsio 43827 14852 0 0 3 0x14280 nfsidl nfsio 87692 206551 0 0 3 0x14280 nfsidl nfsio 73437 112498 0 0 3 0x14280 nfsidl nfsio 87037 24329 0 0 3 0x14280 nfsidl nfsio 51948 11870 0 0 3 0x14280 nfsidl nfsio 26151 441527 0 0 3 0x14280 nfsidl nfsio 24715 295943 0 0 3 0x14280 nfsidl nfsio 16159 276024 0 0 3 0x14280 nfsidl nfsio 68095 486736 0 0 3 0x14280 nfsidl nfsio 58385 270399 70062 0 3 0x82 nanoslp syz-executor 45098 450284 70062 0 3 0x82 nanoslp syz-executor 78673 71491 70062 0 3 0x82 nanoslp syz-executor 47235 295668 70062 0 3 0x82 nanoslp syz-executor *77998 219633 70062 0 7 0x2 syz-executor 18718 365012 70062 0 3 0x82 nanoslp syz-executor 91178 237893 70062 0 3 0x82 nanoslp syz-executor 15383 474202 70062 0 3 0x82 nanoslp syz-executor 70062 313107 15430 0 3 0x82 kqread syz-executor 15430 98923 36261 0 3 0x10008a sigsusp ksh 36261 413405 18002 0 3 0x98 kqread sshd-session 18002 456210 50385 0 3 0x92 kqread sshd-session 50385 65671 1 0 3 0x88 kqread sshd 73059 202128 6918 73 3 0x1100090 kqread syslogd 6918 188881 1 0 3 0x100082 sbwait syslogd 73201 379841 1 0 3 0x100080 kqread resolvd 31559 235671 73755 77 3 0x100092 kqread dhcpleased 78498 38518 73755 77 3 0x100092 kqread dhcpleased 73755 495490 1 0 3 0x80 kqread dhcpleased 77415 354475 0 0 3 0x14200 bored smr 76023 393340 0 0 2 0x14200 zerothread 11810 410254 0 0 3 0x14200 aiodoned aiodoned 35350 448637 0 0 3 0x14200 syncer update 1784 335914 0 0 3 0x14200 cleaner cleaner 25261 4637 0 0 3 0x14200 reaper reaper 28251 17058 0 0 3 0x14200 pgdaemon pagedaemon 23590 100484 0 0 3 0x14200 bored viomb 66052 388542 0 0 3 0x40014200 acpi0 acpi0 73247 185557 0 0 3 0x14200 bored softnet0 18341 127670 0 0 3 0x14200 bored systqmp 81125 230799 0 0 3 0x14200 bored systq 57900 24250 0 0 3 0x40014200 tmoslp softclock 24382 296295 0 0 3 0x40014200 idle0 1 16784 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 10216 11177K 11500K 166960K 13847 0 pcb 17 16K 18K 166960K 527 0 rtable 218 10K 10K 166960K 635 0 pf 32 13K 16K 166960K 185 0 ifaddr 42 7K 8K 166960K 107 0 ifgroup 54 2K 2K 166960K 163 0 sysctl 4 1K 9K 166960K 20 0 counters 33 17K 18K 166960K 99 0 ioctlops 0 0K 4K 166960K 450 0 iov 0 0K 26K 166960K 187 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1436 90K 91K 166960K 2789 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 21 0 VM map 2 1K 1K 166960K 2 0 sem 29 6K 6K 166960K 99 0 dirhash 9 1K 2K 166960K 27 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 236K 166960K 1521 0 sigio 0 0K 0K 166960K 66 0 proc 60 59K 75K 166960K 632 0 subproc 72 4K 4K 166960K 82 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 4 0K 0K 166960K 163 0 in_multi 78 5K 7K 166960K 175 0 ether_multi 1 0K 0K 166960K 20 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 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 633 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 235 151K 171K 166960K 15308 0 UVM aobj 99 15K 15K 166960K 101 0 pinsyscall 38 76K 84K 166960K 2620 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 85 0 NDP 12 0K 2K 166960K 67 0 temp 76 8672K 8742K 166960K 38205 0 kqueue 14 22K 37K 166960K 314 0 SYN cache 2 8K 16K 166960K 3 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 247 0 243 3 2 1 3 0 8 0 rtentry 136 162 0 80 4 0 4 4 0 8 0 unpcb 144 1305 0 1285 9 7 2 6 0 8 1 syncache 336 9 0 9 4 3 1 1 0 8 1 tcpqe 32 5 0 5 3 3 0 1 0 8 0 tcpcb 736 583 0 569 9 5 4 7 0 8 2 arp 96 25 0 11 1 0 1 1 0 8 0 ipq 40 7 0 1 1 0 1 1 0 8 0 ipqe 40 12 0 6 1 0 1 1 0 8 0 inpcb 328 1951 0 1931 14 7 7 7 0 8 5 ip6q 72 7 0 5 1 0 1 1 0 8 0 ip6af 40 13 0 11 1 0 1 1 0 8 0 nd6 112 34 0 15 1 0 1 1 0 8 0 pkpcb 40 11 0 11 3 2 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 2 0 2 2 2 0 1 0 8 0 ppxss 1072 53 0 53 2 1 1 1 0 8 1 pppxif 1384 8 0 8 2 2 0 1 0 8 0 pfrktable 1344 2 0 2 1 1 0 1 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 701 0 340 33 7 26 30 0 8 1 art_table 40 704 0 340 5 0 5 5 0 8 0 art_node 32 160 0 90 1 0 1 1 0 8 0 sysvmsgpl 40 36 0 7 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 94 0 67 1 0 1 1 0 8 0 shmpl 112 91 0 1 3 0 3 3 0 8 0 dirhash 1024 27 0 20 3 0 3 3 0 8 1 dino2pl 256 4322 0 2826 95 0 95 95 0 8 0 ffsino 256 4322 0 2826 95 0 95 95 0 8 0 nchpl 144 6515 0 4819 64 0 64 64 0 8 0 rtmask 32 9 0 9 3 2 1 1 0 8 1 vnodes 216 5130 0 0 285 0 285 285 0 8 0 vnodes: pool(0xffffffff8387d720:vnodes): page inconsistency: page 0x0; at page head addr 0xfffffd8069c45f90 (p 0xfffffd8069c45000) namei 1024 23666 0 23665 3 2 1 2 0 8 0 vcpupl 3904 7 0 1 1 0 1 1 0 8 0 vmpool 800 7 0 1 1 0 1 1 0 8 0 kstatmem 264 98 0 74 2 0 2 2 0 8 0 scsiplug 72 9 0 9 3 2 1 1 0 8 1 scxspl 216 19655 0 19655 10 9 1 8 1 8 1 plimitpl 152 419 0 402 1 0 1 1 0 8 0 sigapl 424 1818 0 1756 9 1 8 8 0 8 0 knotepl 120 337424 0 337376 60 50 10 24 0 8 8 kqueuepl 184 483 0 473 2 0 2 2 0 8 1 pipepl 304 258 0 231 3 0 3 3 0 8 0 fdescpl 448 1783 0 1754 4 0 4 4 0 8 0 filepl 120 12438 0 12211 16 2 14 14 0 8 5 lockfpl 104 651 0 648 2 0 2 2 0 8 1 lockfspl 48 230 0 227 1 0 1 1 0 8 0 sessionpl 144 26 0 18 1 0 1 1 0 8 0 pgrppl 48 58 0 42 1 0 1 1 0 8 0 ucredpl 104 2377 0 2365 1 0 1 1 0 8 0 zombiepl 144 1774 0 1774 3 2 1 1 0 8 1 processpl 1152 1818 0 1756 5 0 5 5 0 8 0 procpl 664 3850 0 3776 9 2 7 7 0 8 0 sosppl 176 10 0 10 2 1 1 1 0 8 1 sockpl 552 3564 0 3520 18 10 8 12 0 8 4 mcl64k 65536 164 0 164 2 1 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 15 0 15 3 2 1 1 0 8 1 mcl4k 4096 4309 0 4255 15 7 8 14 0 8 0 mcl2k2 2112 2 0 2 1 1 0 1 0 8 0 mcl2k 2048 2198 0 2185 9 6 3 7 0 8 1 mtagpl 96 90 0 27 2 0 2 2 0 8 0 mbufpl 256 24304 0 24057 255 232 23 190 0 8 3 bufpl 280 6833 0 612 445 0 445 445 0 8 0 anonpl 24 291036 0 283035 129 57 72 72 0 187 2 amapchunkpl 152 52751 0 52207 59 26 33 40 0 158 9 amappl16 200 5652 0 5400 57 31 26 26 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 8 0 8 2 2 0 1 0 8 0 amappl13 176 450 0 447 1 0 1 1 0 8 0 amappl12 168 2137 0 2099 2 0 2 2 0 8 0 amappl11 160 8 0 8 1 1 0 1 0 8 0 amappl10 152 46 0 36 1 0 1 1 0 8 0 amappl9 144 258 0 256 1 0 1 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 124 0 123 1 0 1 1 0 8 0 amappl6 120 279 0 267 1 0 1 1 0 8 0 amappl5 112 70 0 62 1 0 1 1 0 8 0 amappl4 104 393 0 369 1 0 1 1 0 8 0 amappl3 96 8961 0 8876 3 0 3 3 0 8 0 amappl2 88 1915 0 1842 2 0 2 2 0 8 0 amappl1 80 15055 0 14520 13 0 13 13 0 8 0 amappl 88 14355 0 14187 5 0 5 5 0 92 0 uvmvnodes 80 149 0 0 4 0 4 4 0 8 0 dma16384 16384 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 0 1 1 0 8 1 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 128 254 0 254 2 1 1 1 0 8 1 dma64 64 9 0 9 3 2 1 1 0 8 1 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 72 100 0 2 2 0 2 2 0 8 0 uaddrrnd 24 1783 0 1754 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1783 0 1754 1 0 1 1 0 8 0 vmmpekpl 168 14677 0 14638 2 0 2 2 0 8 0 vmmpepl 168 116340 0 114320 115 14 101 101 0 357 2 vmsppl 368 1782 0 1754 3 0 3 3 0 8 0 rwobjpl 40 31135 0 29825 17 1 16 16 0 8 0 pdppl 4096 3587 0 3516 110 37 73 73 0 8 2 pvpl 32 814242 0 800005 231 76 155 155 0 265 13 pmappl 216 1789 0 1755 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 654 0 307 16 3 13 15 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace VOP_LOCK(fffffd8069c45640,1) at VOP_LOCK+0x7c sys/kern/vfs_vops.c:524 vn_lock(fffffd8069c45640,1) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vget(fffffd8069c45640,1) at vget+0x2a2 sys/kern/vfs_subr.c:686 ufs_ihashget(400,13403) at ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 ffs_vget(ffff800000b58800,13403,ffff80002a88aae0) at ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd806cf851e8,ffff80002a88af30,ffff80002a88af60) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002a88af00) at vfs_lookup+0x921 sys/kern/vfs_lookup.c:566 namei(ffff80002a88af00) at namei+0x7ca sys/kern/vfs_lookup.c:250 vn_open(ffff80002a88af00,30001,0) at vn_open+0x15a sys/kern/vfs_vnops.c:140 doopenat(ffff80002a776008,ffffff9c,713439a751b0,30000,0,ffff80002a88b0a0) at doopenat+0x34d sys/kern/vfs_syscalls.c:1138 syscall(ffff80002a88b150) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a88b150) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x713439a74cb0, count: -13 ddb> machine ddbcpu 1 No such command ddb> trace VOP_LOCK(fffffd8069c45640,1) at VOP_LOCK+0x7c sys/kern/vfs_vops.c:524 vn_lock(fffffd8069c45640,1) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vget(fffffd8069c45640,1) at vget+0x2a2 sys/kern/vfs_subr.c:686 ufs_ihashget(400,13403) at ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 ffs_vget(ffff800000b58800,13403,ffff80002a88aae0) at ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd806cf851e8,ffff80002a88af30,ffff80002a88af60) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002a88af00) at vfs_lookup+0x921 sys/kern/vfs_lookup.c:566 namei(ffff80002a88af00) at namei+0x7ca sys/kern/vfs_lookup.c:250 vn_open(ffff80002a88af00,30001,0) at vn_open+0x15a sys/kern/vfs_vnops.c:140 doopenat(ffff80002a776008,ffffff9c,713439a751b0,30000,0,ffff80002a88b0a0) at doopenat+0x34d sys/kern/vfs_syscalls.c:1138 syscall(ffff80002a88b150) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a88b150) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x713439a74cb0, count: -13