uvm_fault(0xfffffd807e9c5730, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at VOP_LOCK+0x9d: movq 0(%rax),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *285819 44797 0 0x2 0x1 0 syz-executor VOP_LOCK(fffffd8060651378,2001) at VOP_LOCK+0x9d sys/kern/vfs_vops.c:524 vn_lock(fffffd8060651378,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vget(fffffd8060651378,2001) at vget+0x2a2 sys/kern/vfs_subr.c:686 ktrwriteraw(ffff80002a7a62a8,fffffd8060651378,fffffd8007bfd8f0,ffff80002a7fd668,ffff80002a7fd640) at ktrwriteraw+0x152 sys/kern/kern_ktrace.c:688 ktrstruct(ffff80002a7a62a8,ffffffff833aa63d,ffff8000015944d8,8) at ktrstruct+0x188 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrstruct(ffff80002a7a62a8,ffffffff833aa63d,ffff8000015944d8,8) at ktrstruct+0x188 sys/kern/kern_ktrace.c:314 dopselect(ffff80002a7a62a8,35,714128a60860,0,0,ffff80002a7fda60,82ef186367771346,ffff80002a7fdaf0) at dopselect+0xc6b sys/kern/sys_generic.c:720 sys_pselect(ffff80002a7a62a8,ffff80002a7fdba0,ffff80002a7fdaf0) at sys_pselect+0x25a sys/kern/sys_generic.c:589 syscall(ffff80002a7fdba0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a7fdba0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x714128a60810, 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(0xfffffd807e9c5730, 0x0, 0, 1) -> e ddb> trace VOP_LOCK(fffffd8060651378,2001) at VOP_LOCK+0x9d sys/kern/vfs_vops.c:524 vn_lock(fffffd8060651378,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vget(fffffd8060651378,2001) at vget+0x2a2 sys/kern/vfs_subr.c:686 ktrwriteraw(ffff80002a7a62a8,fffffd8060651378,fffffd8007bfd8f0,ffff80002a7fd668,ffff80002a7fd640) at ktrwriteraw+0x152 sys/kern/kern_ktrace.c:688 ktrstruct(ffff80002a7a62a8,ffffffff833aa63d,ffff8000015944d8,8) at ktrstruct+0x188 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrstruct(ffff80002a7a62a8,ffffffff833aa63d,ffff8000015944d8,8) at ktrstruct+0x188 sys/kern/kern_ktrace.c:314 dopselect(ffff80002a7a62a8,35,714128a60860,0,0,ffff80002a7fda60,82ef186367771346,ffff80002a7fdaf0) at dopselect+0xc6b sys/kern/sys_generic.c:720 sys_pselect(ffff80002a7a62a8,ffff80002a7fdba0,ffff80002a7fdaf0) at sys_pselect+0x25a sys/kern/sys_generic.c:589 syscall(ffff80002a7fdba0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a7fdba0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x714128a60810, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002a7fd490 rbx 0x1 rdx 0 rcx 0x8 rax 0 r8 0xffff80002a7fd640 r9 0x8080808080808080 r10 0x3bc141b0a95f164a r11 0xf48a993ecf15637d r12 0xffffffff837c3ff0 cpu_info_full_primary+0x1ff0 r13 0 r14 0xfffffd8060651378 r15 0 rip 0xffffffff82fbc42d VOP_LOCK+0x9d cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80002a7fd440 ss 0 VOP_LOCK+0x9d: movq 0(%rax),%r14 ddb> show proc PROC (syz-executor) tid=285819 pid=44797 tcnt=1 stat=onproc flags process=2 proc=1 runpri=24, usrpri=50, slppri=24, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7a7a00,0xffff80002a7a6020 process=0xffff80002a7ddb10 user=0xffff80002a7f8000, vmspace=0xfffffd807e9c5730 estcpu=36, cpticks=54, pctcpu=0.10, user=9, sys=43, intr=2 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 65682 108549 84497 0 2 0 syz-executor 65682 112207 84497 0 3 0x4000080 fsleep syz-executor 59083 201931 48835 0 2 0 syz-executor 59083 76015 48835 0 3 0x4000080 fifor syz-executor 59083 48455 48835 0 3 0x4000080 kqpoll syz-executor 1504 59471 37804 60928 2 0x10 syz-executor 1504 492975 37804 60928 3 0x4000090 fsleep syz-executor 84497 420165 44797 0 3 0x82 nanoslp syz-executor 69499 99113 26452 0 3 0x80 nanoslp syz-executor 69499 60509 26452 0 3 0x4000080 kqsel syz-executor 69499 436612 26452 0 3 0x4000080 fsleep syz-executor 3282 282837 14265 0 3 0x80 nanoslp syz-executor 3282 269682 14265 0 3 0x4000080 fsleep syz-executor 3282 300617 14265 0 3 0x4000080 lockf syz-executor 3282 410568 14265 0 3 0x4000080 fsleep syz-executor 79367 106145 36212 0 2 0 syz-executor 79367 226066 36212 0 2 0x4000000 syz-executor 75191 18417 0 0 3 0x14200 acct acct 36212 171690 44797 0 3 0x82 nanoslp syz-executor 14265 442271 44797 0 2 0xc82 syz-executor 48835 478560 44797 0 2 0xc82 syz-executor 66910 111797 44797 0 2 0x2 syz-executor 26452 473934 44797 0 3 0x82 nanoslp syz-executor 37804 129878 44797 0 2 0xc82 syz-executor 27109 189957 44797 0 2 0x2 syz-executor *44797 285819 27843 0 7 0x3 syz-executor 27843 451999 16030 0 3 0x10008a sigsusp ksh 16030 178446 99143 0 3 0x98 kqread sshd-session 99143 298210 86732 0 3 0x92 kqread sshd-session 8274 402406 1 0 3 0x100083 ttyin getty 86732 179729 1 0 3 0x88 kqread sshd 48723 9239 91155 73 3 0x1100090 kqread syslogd 91155 95240 1 0 3 0x100082 sbwait syslogd 96603 91144 1 0 3 0x100080 kqread resolvd 20475 443281 34766 77 3 0x100092 kqread dhcpleased 51717 385565 34766 77 3 0x100092 kqread dhcpleased 34766 157044 1 0 3 0x80 kqread dhcpleased 97336 44269 0 0 3 0x14200 bored smr 94921 166045 0 0 2 0x14200 zerothread 39175 77685 0 0 3 0x14200 aiodoned aiodoned 75301 82961 0 0 3 0x14200 syncer update 18416 79734 0 0 3 0x14200 cleaner cleaner 58956 98653 0 0 3 0x14200 reaper reaper 29989 412510 0 0 3 0x14200 pgdaemon pagedaemon 20976 109606 0 0 3 0x14200 bored viomb 835 267774 0 0 3 0x40014200 acpi0 acpi0 14237 256445 0 0 3 0x14200 bored softnet0 18 378153 0 0 3 0x14200 bored systqmp 53204 507515 0 0 3 0x14200 bored systq 65535 61547 0 0 2 0x40014200 softclock 76661 21652 0 0 3 0x40014200 idle0 1 503442 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 11080 12177K 13163K 166960K 15598 0 pcb 19 14K 14K 166960K 331 0 rtable 215 10K 11K 166960K 652 0 pf 32 13K 17K 166960K 177 0 ifaddr 36 6K 8K 166960K 139 0 ifgroup 51 2K 2K 166960K 244 0 sysctl 4 1K 9K 166960K 24 0 counters 34 17K 18K 166960K 135 0 ioctlops 0 0K 4K 166960K 265 0 iov 0 0K 20K 166960K 96 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1455 91K 92K 166960K 2928 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 21 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 56 0 dirhash 12 2K 2K 166960K 48 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 240K 166960K 1605 0 sigio 0 0K 0K 166960K 21 0 proc 60 59K 116K 166960K 712 0 subproc 72 4K 4K 166960K 108 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 299 0 in_multi 66 4K 8K 166960K 209 0 ether_multi 1 0K 0K 166960K 12 0 mrt 0 0K 0K 166960K 13 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 582 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 232 160K 189K 166960K 15418 0 UVM aobj 135 45K 47K 166960K 141 0 pinsyscall 37 74K 95K 166960K 2734 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 81 0 NDP 14 0K 2K 166960K 100 0 temp 79 8672K 8768K 166960K 58266 0 kqueue 14 22K 38K 166960K 332 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 120 203 0 200 3 0 3 3 0 8 2 rtentry 136 192 0 118 4 0 4 4 0 8 0 unpcb 144 1228 0 1210 5 0 5 5 0 8 4 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpqe 32 3 0 3 1 0 1 1 0 8 1 tcpcb 736 706 0 697 7 0 7 7 0 8 6 arp 96 29 0 14 1 0 1 1 0 8 0 ipq 40 8 0 2 1 0 1 1 0 8 0 ipqe 40 16 0 9 1 0 1 1 0 8 0 inpcb 328 1637 0 1620 7 0 7 7 0 8 5 ip6q 72 10 0 2 1 0 1 1 0 8 0 ip6af 40 13 0 4 1 0 1 1 0 8 0 nd6 112 43 0 26 1 0 1 1 0 8 0 pkpcb 40 10 0 10 1 0 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 mppekey 1024 3 0 3 1 0 1 1 0 8 1 ppxss 1072 77 0 77 1 0 1 1 0 8 1 pppxif 1384 7 0 7 1 0 1 1 0 8 1 pfrktable 1344 2 0 2 1 0 1 1 0 8 1 rttmr 136 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 918 0 624 33 3 30 33 0 8 8 art_table 40 922 0 624 6 0 6 6 0 8 1 art_node 32 191 0 126 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 3 1 0 1 1 0 8 0 semapl 112 50 0 40 1 0 1 1 0 8 0 shmpl 112 132 0 4 4 0 4 4 0 8 0 dirhash 1024 42 0 25 3 0 3 3 0 8 0 dino2pl 256 4347 0 2845 95 0 95 95 0 8 0 ffsino 256 4347 0 2845 95 0 95 95 0 8 0 nchpl 144 6466 0 4767 64 0 64 64 0 8 0 rtmask 32 13 0 13 1 0 1 1 0 8 1 vnodes 216 5381 0 0 299 0 299 299 0 8 0 vnodes: pool(0xffffffff838b45b8:vnodes): page inconsistency: page 0x0; at page head addr 0xfffffd8060651f90 (p 0xfffffd8060651000) namei 1024 23367 0 23364 2 0 2 2 0 8 1 vcpupl 3904 6 0 2 1 0 1 1 0 8 0 vmpool 808 6 0 2 1 0 1 1 0 8 0 kstatmem 264 150 0 126 3 0 3 3 0 8 1 scsiplug 72 5 0 5 1 0 1 1 0 8 1 scxspl 216 27462 0 27462 8 0 8 8 1 8 8 plimitpl 152 712 0 695 1 0 1 1 0 8 0 sigapl 424 1855 0 1813 8 0 8 8 0 8 2 knotepl 120 136186 0 135895 28 17 11 17 0 8 2 kqueuepl 184 652 0 639 4 0 4 4 0 8 3 pipepl 304 408 0 381 12 1 11 12 0 8 8 fdescpl 448 1819 0 1791 5 0 5 5 0 8 1 filepl 120 12457 0 12239 17 1 16 17 0 8 7 lockfpl 104 708 0 703 2 0 2 2 0 8 1 lockfspl 48 293 0 289 1 0 1 1 0 8 0 sessionpl 144 27 0 19 1 0 1 1 0 8 0 pgrppl 48 97 0 81 1 0 1 1 0 8 0 ucredpl 104 2129 0 2116 1 0 1 1 0 8 0 zombiepl 144 1813 0 1813 1 0 1 1 0 8 1 processpl 1152 1855 0 1813 5 0 5 5 0 8 0 procpl 664 3904 0 3852 7 0 7 7 0 8 1 sosppl 176 8 0 8 1 0 1 1 0 8 1 sockpl 552 3124 0 3086 15 3 12 15 0 8 8 mcl64k 65536 164 0 163 3 0 3 3 0 8 2 mcl16k 16384 7 0 7 1 0 1 1 0 8 1 mcl9k 9216 5 0 4 1 0 1 1 0 8 0 mcl8k 8192 29 0 29 1 0 1 1 0 8 1 mcl4k 4096 4319 0 4265 15 0 15 15 0 8 7 mcl2k 2048 2574 0 2565 3 0 3 3 0 8 1 mtagpl 96 67 0 42 1 0 1 1 0 8 0 mbufpl 256 21270 0 21087 18 0 18 18 0 8 2 bufpl 280 10927 0 4706 445 0 445 445 0 8 0 anonpl 24 280449 0 275210 70 0 70 70 0 187 21 amapchunkpl 152 53648 0 53120 39 0 39 39 0 158 15 amappl16 200 5318 0 5232 31 14 17 18 0 8 9 amappl15 192 22 0 22 1 0 1 1 0 8 1 amappl14 184 37 0 37 1 0 1 1 0 8 1 amappl13 176 464 0 463 1 0 1 1 0 8 0 amappl12 168 2185 0 2148 3 0 3 3 0 8 1 amappl11 160 7 0 7 1 0 1 1 0 8 1 amappl10 152 40 0 30 1 0 1 1 0 8 0 amappl9 144 258 0 258 1 0 1 1 0 8 1 amappl8 136 23 0 21 1 0 1 1 0 8 0 amappl7 128 108 0 106 1 0 1 1 0 8 0 amappl6 120 326 0 314 1 0 1 1 0 8 0 amappl5 112 73 0 64 1 0 1 1 0 8 0 amappl4 104 402 0 380 1 0 1 1 0 8 0 amappl3 96 9084 0 9002 3 0 3 3 0 8 0 amappl2 88 2002 0 1932 2 0 2 2 0 8 0 amappl1 80 15190 0 14657 13 0 13 13 0 8 0 amappl 88 14401 0 14238 5 0 5 5 0 92 0 uvmvnodes 80 148 0 0 4 0 4 4 0 8 0 dma8192 8192 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 0 1 1 0 8 1 dma256 256 7 0 7 1 0 1 1 0 8 1 dma128 128 254 0 254 1 0 1 1 0 8 1 dma64 64 10 0 10 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 140 0 6 3 0 3 3 0 8 0 uaddrrnd 24 1819 0 1791 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1819 0 1791 1 0 1 1 0 8 0 vmmpekpl 168 15549 0 15495 3 0 3 3 0 8 0 vmmpepl 168 118438 0 116641 96 0 96 96 0 357 10 vmsppl 368 1818 0 1791 4 0 4 4 0 8 1 rwobjpl 40 31469 0 30292 16 0 16 16 0 8 0 pdppl 4096 3657 0 3590 117 45 72 83 0 8 5 pvpl 32 804782 0 794005 149 0 149 149 0 265 32 pmappl 216 1824 0 1793 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 414 0 48 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace VOP_LOCK(fffffd8060651378,2001) at VOP_LOCK+0x9d sys/kern/vfs_vops.c:524 vn_lock(fffffd8060651378,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vget(fffffd8060651378,2001) at vget+0x2a2 sys/kern/vfs_subr.c:686 ktrwriteraw(ffff80002a7a62a8,fffffd8060651378,fffffd8007bfd8f0,ffff80002a7fd668,ffff80002a7fd640) at ktrwriteraw+0x152 sys/kern/kern_ktrace.c:688 ktrstruct(ffff80002a7a62a8,ffffffff833aa63d,ffff8000015944d8,8) at ktrstruct+0x188 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrstruct(ffff80002a7a62a8,ffffffff833aa63d,ffff8000015944d8,8) at ktrstruct+0x188 sys/kern/kern_ktrace.c:314 dopselect(ffff80002a7a62a8,35,714128a60860,0,0,ffff80002a7fda60,82ef186367771346,ffff80002a7fdaf0) at dopselect+0xc6b sys/kern/sys_generic.c:720 sys_pselect(ffff80002a7a62a8,ffff80002a7fdba0,ffff80002a7fdaf0) at sys_pselect+0x25a sys/kern/sys_generic.c:589 syscall(ffff80002a7fdba0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a7fdba0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x714128a60810, count: -9 ddb> machine ddbcpu 1 No such command ddb> trace VOP_LOCK(fffffd8060651378,2001) at VOP_LOCK+0x9d sys/kern/vfs_vops.c:524 vn_lock(fffffd8060651378,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vget(fffffd8060651378,2001) at vget+0x2a2 sys/kern/vfs_subr.c:686 ktrwriteraw(ffff80002a7a62a8,fffffd8060651378,fffffd8007bfd8f0,ffff80002a7fd668,ffff80002a7fd640) at ktrwriteraw+0x152 sys/kern/kern_ktrace.c:688 ktrstruct(ffff80002a7a62a8,ffffffff833aa63d,ffff8000015944d8,8) at ktrstruct+0x188 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrstruct(ffff80002a7a62a8,ffffffff833aa63d,ffff8000015944d8,8) at ktrstruct+0x188 sys/kern/kern_ktrace.c:314 dopselect(ffff80002a7a62a8,35,714128a60860,0,0,ffff80002a7fda60,82ef186367771346,ffff80002a7fdaf0) at dopselect+0xc6b sys/kern/sys_generic.c:720 sys_pselect(ffff80002a7a62a8,ffff80002a7fdba0,ffff80002a7fdaf0) at sys_pselect+0x25a sys/kern/sys_generic.c:589 syscall(ffff80002a7fdba0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a7fdba0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x714128a60810, count: -9