uvm_fault(0xfffffd806b08ee78, 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 *332937 63364 0 0x10 0x4000000 0 syz-executor dovutimens(ffff80002f0c0548,fffffd806f78d3a0,ffff80003c9033e0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2771 sys_futimens(ffff80002f0c0548,ffff80003c903520,ffff80003c903470) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2847 syscall(ffff80003c903520) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c903520) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc050932ae80, 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(0xfffffd806b08ee78, 0x70, 0, 1) -> e ddb> trace dovutimens(ffff80002f0c0548,fffffd806f78d3a0,ffff80003c9033e0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2771 sys_futimens(ffff80002f0c0548,ffff80003c903520,ffff80003c903470) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2847 syscall(ffff80003c903520) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c903520) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc050932ae80, count: -4 ddb> show registers rdi 0 rsi 0 rbp 0xffff80003c9033d0 rbx 0 rdx 0 rcx 0 rax 0 r8 0x7f7fffffc000 r9 0 r10 0xc6243452de8e18c6 r11 0xa8ea2f4e2fc41c1c r12 0xffff80003c9033e0 r13 0 r14 0xfffffd806f78d3a0 r15 0xffff80002f0c0548 rip 0xffffffff812784d8 dovutimens+0x368 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9032d0 ss 0x10 dovutimens+0x368: movl 0x70(%rax),%r12d ddb> show proc PROC (syz-executor) tid=332937 pid=63364 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002f0c14d8,0xffff80002f0c1cb0 process=0xffff8000ffffa898 user=0xffff80003c8fe000, vmspace=0xfffffd806b08ee78 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 99434 387371 29366 27 3 0x1100092 kqread sshd-auth 63364 51096 22331 0 2 0x10 syz-executor *63364 332937 22331 0 7 0x4000010 syz-executor 57355 438417 41041 0 2 0 syz-executor 57355 359453 41041 0 3 0x4000080 fsleep syz-executor 57355 203194 41041 0 3 0x4000080 fifow syz-executor 29366 374275 38971 0 3 0x82 kqread sshd-session 41871 274486 66323 0 2 0 syz-executor 41871 1540 66323 0 3 0x4000080 fsleep syz-executor 58928 192625 39725 0 2 0 syz-executor 58928 260885 39725 0 3 0x4000080 fsleep syz-executor 58928 64974 39725 0 3 0x4000080 fsleep syz-executor 58928 465433 39725 0 3 0x4000080 fsleep syz-executor 4052 82082 58261 0 2 0xc80 syz-executor 4052 30322 58261 0 3 0x4000080 fifor syz-executor 4052 411387 58261 0 3 0x4000080 fsleep syz-executor 17081 417917 91852 0 2 0xc80 syz-executor 17081 323617 91852 0 3 0x4000080 netacc syz-executor 17081 259753 91852 0 3 0x4000080 fsleep syz-executor 61672 347824 51098 0 2 0xc80 syz-executor 61672 450839 51098 0 3 0x4000080 piperd syz-executor 61672 496069 51098 0 3 0x4000080 fsleep syz-executor 99516 18936 1 0 3 0x82 nanoslp getty 22331 129908 34551 0 3 0x82 nanoslp syz-executor 66323 41796 34551 0 2 0xc82 syz-executor 39725 352713 34551 0 3 0x82 nanoslp syz-executor 91852 163437 34551 0 3 0x82 nanoslp syz-executor 51098 31962 34551 0 2 0xc82 syz-executor 58261 376455 34551 0 3 0x82 nanoslp syz-executor 38660 112639 34551 0 2 0x2 syz-executor 41041 110296 34551 0 2 0xc82 syz-executor 34551 82130 1 0 3 0x82 kqread syz-executor 93587 505415 26668 0 3 0x98 kqread sshd-session 26668 143752 38971 0 3 0x92 kqread sshd-session 38971 434156 1 0 3 0x88 kqread sshd 91546 138849 1 73 3 0x1100090 kqread syslogd 76029 274654 63391 77 3 0x100092 kqread dhcpleased 65203 376560 63391 77 3 0x100092 kqread dhcpleased 63391 105150 1 0 3 0x80 kqread dhcpleased 66381 207089 0 0 2 0x14200 smr 29057 372891 0 0 2 0x14200 zerothread 91827 246588 0 0 3 0x14200 aiodoned aiodoned 42274 45961 0 0 3 0x14200 syncer update 99038 228285 0 0 3 0x14200 cleaner cleaner 63043 409381 0 0 3 0x14200 reaper reaper 14694 214528 0 0 3 0x14200 pgdaemon pagedaemon 16995 483003 0 0 3 0x14200 bored viomb 59953 147131 0 0 3 0x40014200 acpi0 acpi0 84061 403063 0 0 3 0x14200 bored softnet0 12304 134254 0 0 3 0x14200 bored systqmp 91452 137999 0 0 3 0x14200 bored systq 59762 480850 0 0 3 0x40014200 tmoslp softclock 75300 365857 0 0 3 0x40014200 idle0 1 453677 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11035 12105K 12365K 166960K 12212 0 pcb 21 13K 13K 166960K 49 0 rtable 247 7K 8K 166960K 380 0 pf 30 12K 13K 166960K 36 0 ifaddr 42 7K 7K 166960K 46 0 ifgroup 47 1K 2K 166960K 57 0 sysctl 2 1K 9K 166960K 6 0 counters 33 17K 17K 166960K 35 0 ioctlops 0 0K 4K 166960K 41 0 iov 0 0K 2K 166960K 66 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1297 82K 82K 166960K 1413 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 6 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 197 0 sigio 0 0K 0K 166960K 1 0 proc 26 41K 116K 166960K 512 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 5 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 55 254K 254K 166960K 55 0 exec 0 0K 1K 166960K 367 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 142K 159K 166960K 3543 0 UVM aobj 6 2K 2K 166960K 6 0 pinsyscall 37 74K 95K 166960K 1292 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 4 0 NDP 11 0K 1K 166960K 29 0 temp 36 9062K 9126K 166960K 4886 0 kqueue 15 24K 24K 166960K 35 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 77 0 75 2 0 2 2 0 8 1 rtentry 136 113 0 1 4 0 4 4 0 8 0 unpcb 144 65 0 38 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 28 0 20 1 0 1 1 0 8 0 arp 96 18 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 137 0 118 4 0 4 4 0 8 2 ip6q 72 2 0 0 1 0 1 1 0 8 0 ip6af 40 2 0 0 1 0 1 1 0 8 0 nd6 112 25 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 1 0 1 1 0 1 1 0 8 1 pfsrclim 320 1 0 1 1 0 1 1 0 8 1 pfstitem 24 2 0 1 1 0 1 1 0 8 0 pfstkey 128 2 0 0 1 0 1 1 0 8 0 pfstate 384 2 0 1 1 0 1 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 461 0 0 29 0 29 29 0 8 0 art_table 40 463 0 0 5 0 5 5 0 8 0 art_node 32 113 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 4 0 0 1 0 1 1 0 8 0 shmpl 112 3 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1673 0 206 92 0 92 92 0 8 0 ffsino 256 1673 0 206 92 0 92 92 0 8 0 nchpl 144 1960 0 262 63 0 63 63 0 8 0 vnodes 216 1791 0 0 100 0 100 100 0 8 0 namei 1024 5805 0 5805 2 0 2 2 0 8 2 kstatmem 264 26 0 4 2 0 2 2 0 8 0 scxspl 216 6570 0 6570 8 0 8 8 1 8 8 plimitpl 152 37 0 22 1 0 1 1 0 8 0 sigapl 424 490 0 449 6 0 6 6 0 8 1 knotepl 120 5575 0 5519 9 0 9 9 0 8 7 kqueuepl 184 33 0 22 1 0 1 1 0 8 0 pipepl 304 126 0 96 3 0 3 3 0 8 0 fdescpl 448 477 0 449 5 0 5 5 0 8 1 filepl 120 1844 0 1605 8 0 8 8 0 8 0 lockfpl 104 27 0 22 1 0 1 1 0 8 0 lockfspl 48 15 0 11 1 0 1 1 0 8 0 sessionpl 144 26 0 19 1 0 1 1 0 8 0 pgrppl 48 35 0 20 1 0 1 1 0 8 0 ucredpl 104 132 0 120 1 0 1 1 0 8 0 zombiepl 144 449 0 449 1 0 1 1 0 8 1 processpl 1152 490 0 449 4 0 4 4 0 8 0 procpl 664 599 0 545 5 0 5 5 0 8 0 sosppl 176 2 0 2 1 0 1 1 0 8 1 sockpl 552 284 0 236 5 0 5 5 0 8 1 mcl64k 65536 5 0 5 1 0 1 1 0 8 1 mcl8k 8192 7 0 6 1 0 1 1 0 8 0 mcl4k 4096 2554 0 2502 14 0 14 14 0 8 7 mcl2k 2048 169 0 168 1 0 1 1 0 8 0 mtagpl 96 5 0 4 1 0 1 1 0 8 0 mbufpl 256 4744 0 4581 11 0 11 11 0 8 0 bufpl 280 2356 0 102 161 0 161 161 0 8 0 anonpl 24 108755 0 105464 31 0 31 31 0 187 10 amapchunkpl 152 10390 0 9900 26 0 26 26 0 158 6 amappl16 200 2080 0 2054 5 0 5 5 0 8 3 amappl15 192 7 0 7 1 0 1 1 0 8 1 amappl14 184 406 0 406 1 0 1 1 0 8 1 amappl13 176 124 0 114 1 0 1 1 0 8 0 amappl12 168 716 0 689 2 0 2 2 0 8 0 amappl11 160 4 0 4 1 0 1 1 0 8 1 amappl10 152 61 0 53 1 0 1 1 0 8 0 amappl9 144 261 0 260 1 0 1 1 0 8 0 amappl8 136 117 0 117 1 0 1 1 0 8 1 amappl7 128 148 0 136 1 0 1 1 0 8 0 amappl6 120 151 0 151 1 0 1 1 0 8 1 amappl5 112 91 0 82 1 0 1 1 0 8 0 amappl4 104 257 0 246 1 0 1 1 0 8 0 amappl3 96 1787 0 1675 3 0 3 3 0 8 0 amappl2 88 526 0 466 2 0 2 2 0 8 0 amappl1 80 9709 0 9050 14 0 14 14 0 8 0 amappl 88 2843 0 2680 4 0 4 4 0 92 0 uvmvnodes 80 100 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 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 477 0 449 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 477 0 449 1 0 1 1 0 8 0 vmmpekpl 168 5715 0 5674 2 0 2 2 0 8 0 vmmpepl 168 39447 0 37560 85 0 85 85 0 357 0 vmsppl 368 476 0 449 4 0 4 4 0 8 1 rwobjpl 40 14589 0 13525 11 0 11 11 0 8 0 pdppl 4096 960 0 898 98 34 64 80 0 8 2 pvpl 32 242829 0 233763 80 0 80 80 0 265 5 pmappl 216 476 0 449 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 360 0 34 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace dovutimens(ffff80002f0c0548,fffffd806f78d3a0,ffff80003c9033e0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2771 sys_futimens(ffff80002f0c0548,ffff80003c903520,ffff80003c903470) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2847 syscall(ffff80003c903520) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c903520) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc050932ae80, count: -4 ddb> machine ddbcpu 1 No such command ddb> trace dovutimens(ffff80002f0c0548,fffffd806f78d3a0,ffff80003c9033e0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2771 sys_futimens(ffff80002f0c0548,ffff80003c903520,ffff80003c903470) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2847 syscall(ffff80003c903520) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c903520) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc050932ae80, count: -4