uvm_fault(0xfffffa806d1a7e70, 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 *350518 86253 0 0 0x4000000 0 syz-executor dovutimens(ffff8000310b07e0,fffffa806d9fe5f8,ffff80003c8f97b0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2691 sys_futimes(ffff8000310b07e0,ffff80003c8f98f0,ffff80003c8f9840) at sys_futimes+0x208 sys/kern/vfs_syscalls.c:2733 syscall(ffff80003c8f98f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8f98f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2345125fc10, 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(0xfffffa806d1a7e70, 0x70, 0, 1) -> e ddb> show kasan No such command ddb> trace dovutimens(ffff8000310b07e0,fffffa806d9fe5f8,ffff80003c8f97b0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2691 sys_futimes(ffff8000310b07e0,ffff80003c8f98f0,ffff80003c8f9840) at sys_futimes+0x208 sys/kern/vfs_syscalls.c:2733 syscall(ffff80003c8f98f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8f98f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2345125fc10, count: -4 ddb> show registers rdi 0xffff8000314b8000 rsi 0x3e rbp 0xffff80003c8f9780 rbx 0xfffffffffffffffe rdx 0xffff8000314b8000 rcx 0x3d rax 0 r8 0xffffffff824543a0 uvm_map_inentry_sp r9 0 r10 0 r11 0x4051d986a4146bbf r12 0xffff80003c8f97b0 r13 0xd313c61 __kernel_phys_end+0x9713c61 r14 0xfffffa806d9fe5f8 r15 0xffff8000310b07e0 rip 0xffffffff83219a68 dovutimens+0x368 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c8f9680 ss 0x10 dovutimens+0x368: movl 0x70(%rax),%r12d ddb> show proc PROC (syz-executor) tid=350518 pid=86253 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a736a68,0xffff8000310b02c0 process=0xffff800045ffb198 user=0xffff80003c8f4000, vmspace=0xfffffa806d1a7e70 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 69310 404220 7276 0 2 0 0 syz-executor 69310 271240 7276 0 3 0 0x4000080 fsleep syz-executor 86253 448545 48875 0 2 0 0 syz-executor *86253 350518 48875 0 7 0 0x4000000 syz-executor 48329 58442 25343 0 2 0 0 syz-executor 48329 448140 25343 0 3 0 0x4000080 fsleep syz-executor 57857 165536 40053 0 2 0 0 syz-executor 57857 121238 40053 0 3 0 0x4000080 fsleep syz-executor 82693 79651 57201 0 2 0 0 syz-executor 82693 377813 57201 0 3 0 0x4000080 fsleep syz-executor 48969 462640 91168 0 2 0 0 syz-executor 48969 158849 91168 0 3 0 0x4000080 fsleep syz-executor 79797 428712 39723 0 2 0 0 syz-executor 79797 22272 39723 0 2 0 0x4000000 syz-executor 25853 4367 19830 0 2 0 0 syz-executor 25853 361214 19830 0 3 0 0x4000080 fsleep syz-executor 39723 337051 55724 0 3 0x2 0x80 nanoslp syz-executor 19830 426102 55724 0 3 0x2 0x80 nanoslp syz-executor 91168 152302 55724 0 3 0x2 0x80 nanoslp syz-executor 57201 371672 55724 0 3 0x2 0x80 nanoslp syz-executor 48875 390777 55724 0 3 0x2 0x80 nanoslp syz-executor 40053 279995 55724 0 3 0x2 0x80 nanoslp syz-executor 25343 147620 55724 0 3 0x2 0x80 nanoslp syz-executor 7276 292547 55724 0 3 0x2 0x80 nanoslp syz-executor 55724 349064 76741 0 3 0x2 0x80 kqread syz-executor 76741 26875 20135 0 3 0x100002 0x88 sigsusp ksh 20135 6620 23509 0 3 0x10 0x88 kqread sshd-session 23509 282236 76389 0 3 0x12 0x80 kqread sshd-session 48963 14376 1 0 3 0x100003 0x80 ttyin getty 76389 438900 1 0 3 0 0x88 kqread sshd 30715 450921 50478 73 3 0x1100010 0x80 kqread syslogd 50478 421235 1 0 3 0x100002 0x80 sbwait syslogd 29502 27910 1 0 3 0x100000 0x80 kqread resolvd 58034 367034 36908 77 3 0x100012 0x80 kqread dhcpleased 15730 6265 36908 77 3 0x100012 0x80 kqread dhcpleased 36908 441480 1 0 3 0 0x80 kqread dhcpleased 29939 276643 0 0 3 0x14000 0x200 bored smr 77369 212468 0 0 2 0x14000 0x200 zerothread 40038 90024 0 0 3 0x14000 0x200 aiodoned aiodoned 92784 127596 0 0 3 0x14000 0x200 syncer update 8170 249192 0 0 3 0x14000 0x200 cleaner cleaner 53621 401852 0 0 3 0x14000 0x200 reaper reaper 94181 502317 0 0 3 0x14000 0x200 pgdaemon pagedaemon 99026 326848 0 0 3 0x14000 0x200 bored viomb 80699 37893 0 0 3 0x14000 0x40000200 acpi0 acpi0 44430 176963 0 0 3 0x14000 0x200 bored softnet0 86057 262640 0 0 3 0x14000 0x200 smrbar systqmp 96527 318096 0 0 3 0x14000 0x200 bored systq 93427 187922 0 0 3 0x14000 0x40000200 tmoslp softclock 76210 430976 0 0 3 0x14000 0x40000200 idle0 1 281521 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11069 12185K 12185K 166960K 12155 0 pcb 17 12K 12K 166960K 17 0 rtable 237 6K 6K 166960K 357 0 pf 30 12K 12K 166960K 30 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 5 0 counters 33 17K 17K 166960K 33 0 ioctlops 0 0K 4K 166960K 30 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1324 83K 83K 166960K 1392 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 18 65K 93K 166960K 142 0 proc 57 58K 91K 166960K 495 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 1 0K 0K 166960K 1 0 in_multi 101 6K 6K 166960K 101 0 ether_multi 2 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 1 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 368 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 223 151K 159K 166960K 3006 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 39 78K 94K 166960K 1252 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 27 2K 2K 166960K 27 0 temp 34 9106K 9112K 166960K 3645 0 kqueue 13 20K 22K 166960K 26 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 39 0 36 1 0 1 1 0 8 0 rtentry 136 111 0 1 4 0 4 4 0 8 0 unpcb 144 38 0 23 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 9 0 4 1 0 1 1 0 8 0 arp 96 18 0 0 1 0 1 1 0 8 0 inpcb 328 68 0 55 2 0 2 2 0 8 0 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 256 453 0 0 29 0 29 29 0 8 0 art_table 40 454 0 0 5 0 5 5 0 8 0 art_node 32 111 0 9 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1561 0 100 92 0 92 92 0 8 0 ffsino 256 1561 0 100 92 0 92 92 0 8 0 nchpl 144 1759 0 64 63 0 63 63 0 8 0 vnodes 216 1681 0 0 94 0 94 94 0 8 0 namei 1024 5231 0 5231 2 0 2 2 0 8 2 kstatmem 264 23 0 0 2 0 2 2 0 8 0 scxspl 216 5969 0 5969 4 0 4 4 1 8 4 plimitpl 152 29 0 12 1 0 1 1 0 8 0 sigapl 424 440 0 397 6 0 6 6 0 8 1 knotepl 120 2277 0 2230 2 0 2 2 0 8 0 kqueuepl 184 22 0 13 1 0 1 1 0 8 0 pipepl 304 123 0 96 3 0 3 3 0 8 0 fdescpl 448 427 0 397 5 0 5 5 0 8 1 filepl 120 1503 0 1285 8 0 8 8 0 8 0 lockfpl 104 11 0 8 1 0 1 1 0 8 0 lockfspl 48 7 0 4 1 0 1 1 0 8 0 sessionpl 144 23 0 15 1 0 1 1 0 8 0 pgrppl 48 31 0 15 1 0 1 1 0 8 0 ucredpl 104 92 0 81 1 0 1 1 0 8 0 zombiepl 144 397 0 397 1 0 1 1 0 8 1 processpl 1152 440 0 397 4 0 4 4 0 8 0 procpl 664 453 0 402 5 0 5 5 0 8 0 sosppl 176 2 0 0 1 0 1 1 0 8 0 sockpl 552 145 0 114 3 0 3 3 0 8 0 mcl64k 65536 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 5 0 5 1 0 1 1 0 8 1 mcl4k 4096 2470 0 2417 15 0 15 15 0 8 7 mcl2k 2048 112 0 112 1 0 1 1 0 8 1 mextrefs 64 38 0 38 1 0 1 1 0 8 1 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 4192 0 4058 10 0 10 10 0 8 0 bufpl 272 2232 0 102 142 0 142 142 0 8 0 anonpl 24 80652 0 77578 21 0 21 21 0 187 1 amapchunkpl 152 7942 0 7446 20 0 20 20 0 158 0 amappl16 200 1156 0 1140 4 0 4 4 0 8 3 amappl15 192 8 0 8 1 0 1 1 0 8 1 amappl14 184 418 0 417 1 0 1 1 0 8 0 amappl13 176 118 0 108 1 0 1 1 0 8 0 amappl12 168 671 0 642 2 0 2 2 0 8 0 amappl11 160 18 0 17 1 0 1 1 0 8 0 amappl10 152 80 0 70 1 0 1 1 0 8 0 amappl9 144 269 0 269 1 0 1 1 0 8 1 amappl8 136 95 0 93 1 0 1 1 0 8 0 amappl7 128 148 0 136 1 0 1 1 0 8 0 amappl6 120 153 0 152 1 0 1 1 0 8 0 amappl5 112 92 0 85 1 0 1 1 0 8 0 amappl4 104 283 0 267 1 0 1 1 0 8 0 amappl3 96 1395 0 1299 3 0 3 3 0 8 0 amappl2 88 551 0 479 2 0 2 2 0 8 0 amappl1 80 10259 0 9713 13 0 13 13 0 8 1 amappl 88 2305 0 2145 4 0 4 4 0 92 0 uvmvnodes 80 95 0 0 2 0 2 2 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 6 0 6 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 24 427 0 397 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 427 0 397 1 0 1 1 0 8 0 vmmpekpl 168 5452 0 5423 2 0 2 2 0 8 0 vmmpepl 168 36596 0 34803 79 0 79 79 0 357 1 vmsppl 368 426 0 397 4 0 4 4 0 8 1 rwobjpl 40 13638 0 12712 11 0 11 11 0 8 1 pdppl 4096 860 0 794 94 14 80 80 0 8 14 pvpl 32 202045 0 193459 70 0 70 70 0 265 0 pmappl 216 426 0 397 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 497 0 14 14 0 14 14 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace dovutimens(ffff8000310b07e0,fffffa806d9fe5f8,ffff80003c8f97b0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2691 sys_futimes(ffff8000310b07e0,ffff80003c8f98f0,ffff80003c8f9840) at sys_futimes+0x208 sys/kern/vfs_syscalls.c:2733 syscall(ffff80003c8f98f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8f98f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2345125fc10, count: -4 ddb> machine ddbcpu 1 No such command ddb> trace dovutimens(ffff8000310b07e0,fffffa806d9fe5f8,ffff80003c8f97b0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2691 sys_futimes(ffff8000310b07e0,ffff80003c8f98f0,ffff80003c8f9840) at sys_futimes+0x208 sys/kern/vfs_syscalls.c:2733 syscall(ffff80003c8f98f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8f98f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2345125fc10, count: -4