uvm_fault(0xfffffd806cc6ea28, 0x70, 0, 1) -> e kernel: page fault trap, code=0 Stopped at dovutimens+0x368: movl 0x70(%rax),%r12d TID PID UID PRFLAGS PFLAGS CPU COMMAND *287662 56275 0 0 0x4000000 0 syz-executor dovutimens(ffff80003c8fb4e0,fffffd8068f872a8,ffff8000380db2f0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2777 sys_futimens(ffff80003c8fb4e0,ffff8000380db430,ffff8000380db380) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2853 syscall(ffff8000380db430) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000380db430) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf9ce7e474c0, count: 11 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(0xfffffd806cc6ea28, 0x70, 0, 1) -> e ddb> trace dovutimens(ffff80003c8fb4e0,fffffd8068f872a8,ffff8000380db2f0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2777 sys_futimens(ffff80003c8fb4e0,ffff8000380db430,ffff8000380db380) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2853 syscall(ffff8000380db430) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000380db430) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf9ce7e474c0, count: -4 ddb> show registers rdi 0 rsi 0 rbp 0xffff8000380db2e0 rbx 0x9 rdx 0 rcx 0x2 rax 0 r8 0x7f7fffffc000 r9 0 r10 0xdca9c49a4427f793 r11 0x9da618fceed3ed8e r12 0xffff8000380db2f0 r13 0x2 r14 0xfffffd8068f872a8 r15 0xffff80003c8fb4e0 rip 0xffffffff818e91b8 dovutimens+0x368 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000380db1e0 ss 0x10 dovutimens+0x368: movl 0x70(%rax),%r12d ddb> show proc PROC (syz-executor) tid=287662 pid=56275 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=62, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c8fafb0,0xffff80003c8fbcb8 process=0xffff8000ffff8d98 user=0xffff8000380d6000, vmspace=0xfffffd806cc6ea28 estcpu=12, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 91989 210789 5541 0 2 0 syz-executor 91989 489577 5541 0 3 0x4000080 fsleep syz-executor 53658 350903 82689 0 2 0 syz-executor 53658 488967 82689 0 3 0x4000000 smrbar syz-executor 67515 413364 48407 0 3 0x80 nanoslp syz-executor 67515 171714 48407 0 3 0x4000080 sbwait syz-executor 67515 366933 48407 0 3 0x4000080 fsleep syz-executor 67515 53353 48407 0 3 0x4000080 fsleep syz-executor 94978 301109 56284 0 3 0x80 nanoslp syz-executor 94978 484579 56284 0 3 0x4000080 fsleep syz-executor 94978 80588 56284 0 3 0x4000080 pipewr syz-executor 56275 395740 49334 0 2 0 syz-executor *56275 287662 49334 0 7 0x4000000 syz-executor 61804 440163 8772 0 3 0x80 nanoslp syz-executor 61804 177014 8772 0 3 0x4000080 sbwait syz-executor 5541 253674 42267 0 3 0x82 nanoslp syz-executor 56284 255710 42267 0 3 0x82 nanoslp syz-executor 8772 306052 42267 0 3 0x82 nanoslp syz-executor 31083 394451 42267 0 2 0x2 syz-executor 82689 303399 42267 0 3 0x82 nanoslp syz-executor 48407 495160 42267 0 3 0x82 nanoslp syz-executor 56069 26446 42267 0 3 0x82 nanoslp syz-executor 49334 4021 42267 0 3 0x82 nanoslp syz-executor 42267 107662 17055 0 3 0x82 kqread syz-executor 17055 88561 52556 0 3 0x10008a sigsusp ksh 52556 76817 15402 0 3 0x98 kqread sshd-session 15402 23433 35296 0 3 0x92 kqread sshd-session 6634 117761 1 0 3 0x100083 ttyin getty 35296 86802 1 0 3 0x88 kqread sshd 66552 483258 50384 73 3 0x1100090 kqread syslogd 50384 7133 1 0 3 0x100082 sbwait syslogd 72971 75613 1 0 3 0x100080 kqread resolvd 97609 122685 58054 77 3 0x100092 kqread dhcpleased 10756 208519 58054 77 3 0x100092 kqread dhcpleased 58054 44488 1 0 3 0x80 kqread dhcpleased 84205 103640 0 0 3 0x14200 bored smr 86210 2528 0 0 2 0x14200 zerothread 93662 51179 0 0 3 0x14200 aiodoned aiodoned 14746 307476 0 0 3 0x14200 syncer update 12836 133172 0 0 3 0x14200 cleaner cleaner 64542 38465 0 0 3 0x14200 reaper reaper 87888 372905 0 0 3 0x14200 pgdaemon pagedaemon 70347 318345 0 0 3 0x14200 bored viomb 24977 320763 0 0 3 0x40014200 acpi0 acpi0 51166 497465 0 0 3 0x14200 bored softnet0 38611 17179 0 0 3 0x14200 bored systqmp 91941 348135 0 0 3 0x14200 bored systq 51980 372288 0 0 3 0x40014200 tmoslp softclock 95679 503467 0 0 3 0x40014200 idle0 1 117015 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 11038 12120K 12314K 166960K 12145 0 pcb 19 12K 12K 166960K 26 0 rtable 243 7K 7K 166960K 373 0 pf 30 12K 18K 166960K 33 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 3 1K 9K 166960K 8 0 counters 33 17K 17K 166960K 33 0 ioctlops 0 0K 2K 166960K 38 0 iov 0 0K 8K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1298 82K 82K 166960K 1377 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 6 0K 0K 166960K 7 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 93K 166960K 178 0 sigio 0 0K 0K 166960K 1 0 proc 59 59K 91K 166960K 497 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 4 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 49 228K 228K 166960K 49 0 exec 0 0K 1K 166960K 372 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 219 142K 150K 166960K 3315 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 38 76K 94K 166960K 1288 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 2 0 NDP 27 2K 2K 166960K 27 0 temp 36 9102K 9166K 166960K 7589 0 kqueue 15 22K 22K 166960K 30 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 43 0 39 1 0 1 1 0 8 0 rtentry 136 111 0 1 4 0 4 4 0 8 0 unpcb 144 69 0 50 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 17 0 12 1 0 1 1 0 8 0 arp 96 18 0 0 1 0 1 1 0 8 0 inpcb 328 86 0 74 2 0 2 2 0 8 1 nd6 112 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 452 0 0 29 0 29 29 0 8 0 art_table 40 453 0 0 5 0 5 5 0 8 0 art_node 32 111 0 11 1 0 1 1 0 8 0 semapl 72 5 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1620 0 154 92 0 92 92 0 8 0 ffsino 256 1620 0 154 92 0 92 92 0 8 0 nchpl 144 1881 0 185 64 0 64 64 0 8 0 vnodes 216 1719 0 0 96 0 96 96 0 8 0 namei 1024 5495 0 5494 2 0 2 2 0 8 1 kstatmem 264 23 0 0 2 0 2 2 0 8 0 scxspl 216 6334 0 6334 2 0 2 2 1 8 2 plimitpl 152 32 0 16 1 0 1 1 0 8 0 sigapl 424 477 0 435 6 0 6 6 0 8 1 knotepl 120 6580 0 6531 2 0 2 2 0 8 0 kqueuepl 184 35 0 24 1 0 1 1 0 8 0 pipepl 304 125 0 97 3 0 3 3 0 8 0 fdescpl 448 463 0 434 5 0 5 5 0 8 1 filepl 120 1652 0 1420 8 0 8 8 0 8 0 lockfpl 104 32 0 27 1 0 1 1 0 8 0 lockfspl 48 16 0 13 1 0 1 1 0 8 0 sessionpl 144 25 0 17 1 0 1 1 0 8 0 pgrppl 48 33 0 17 1 0 1 1 0 8 0 ucredpl 104 126 0 115 1 0 1 1 0 8 0 zombiepl 144 436 0 435 1 0 1 1 0 8 0 processpl 1152 477 0 435 4 0 4 4 0 8 0 procpl 664 541 0 490 5 0 5 5 0 8 0 sockpl 552 201 0 166 3 0 3 3 0 8 0 mcl64k 65536 1 0 1 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 7 0 7 1 0 1 1 0 8 1 mcl4k 4096 2670 0 2616 13 0 13 13 0 8 5 mcl2k 2048 135 0 132 1 0 1 1 0 8 0 mtagpl 96 5 0 4 1 0 1 1 0 8 0 mbufpl 256 5378 0 5242 10 0 10 10 0 8 0 bufpl 280 2387 0 102 164 0 164 164 0 8 0 anonpl 24 105130 0 101721 23 0 23 23 0 186 2 amapchunkpl 152 9595 0 9110 25 0 25 25 0 158 5 amappl16 200 2120 0 2101 5 0 5 5 0 8 3 amappl15 192 10 0 10 1 0 1 1 0 8 1 amappl14 184 496 0 495 1 0 1 1 0 8 0 amappl13 176 117 0 107 1 0 1 1 0 8 0 amappl12 168 703 0 675 2 0 2 2 0 8 0 amappl11 160 6 0 6 1 0 1 1 0 8 1 amappl10 152 61 0 51 1 0 1 1 0 8 0 amappl9 144 263 0 263 1 0 1 1 0 8 1 amappl8 136 91 0 89 1 0 1 1 0 8 0 amappl7 128 142 0 131 1 0 1 1 0 8 0 amappl6 120 151 0 150 1 0 1 1 0 8 0 amappl5 112 149 0 142 1 0 1 1 0 8 0 amappl4 104 263 0 246 1 0 1 1 0 8 0 amappl3 96 1645 0 1538 3 0 3 3 0 8 0 amappl2 88 535 0 485 2 0 2 2 0 8 0 amappl1 80 10218 0 9663 13 0 13 13 0 8 1 amappl 88 2612 0 2454 4 0 4 4 0 92 0 uvmvnodes 80 103 0 0 3 0 3 3 0 8 0 dma4096 4096 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 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 7 0 7 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 463 0 434 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 463 0 434 1 0 1 1 0 8 0 vmmpekpl 168 5692 0 5657 2 0 2 2 0 8 0 vmmpepl 168 39430 0 37664 80 0 80 80 0 357 0 vmsppl 368 462 0 434 4 0 4 4 0 8 1 rwobjpl 40 14902 0 13963 11 0 11 11 0 8 1 pdppl 4096 932 0 868 94 16 78 80 0 8 14 pvpl 32 235081 0 225737 79 0 79 79 0 265 1 pmappl 216 462 0 434 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 354 0 16 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace dovutimens(ffff80003c8fb4e0,fffffd8068f872a8,ffff8000380db2f0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2777 sys_futimens(ffff80003c8fb4e0,ffff8000380db430,ffff8000380db380) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2853 syscall(ffff8000380db430) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000380db430) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf9ce7e474c0, count: -4 ddb> machine ddbcpu 1 No such command ddb> trace dovutimens(ffff80003c8fb4e0,fffffd8068f872a8,ffff8000380db2f0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2777 sys_futimens(ffff80003c8fb4e0,ffff8000380db430,ffff8000380db380) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2853 syscall(ffff8000380db430) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000380db430) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf9ce7e474c0, count: -4