uvm_fault(0xffffffff836190a8, 0xffff800012105200, 0, 1) -> d kernel: page fault trap, code=0 Stopped at memcpy+0x19: repe movsq (%rsi),%es:(%rdi) TID PID UID PRFLAGS PFLAGS CPU COMMAND * 80307 64001 0 0x2 0 1K syz-executor memcpy() at memcpy+0x19 ffs_inode_alloc(fffffd807e445440,41c0,fffffd807f7d34e0,ffff8000371ed0a8) at ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 ufs_mkdir(ffff8000371ed110) at ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806ee31b28,ffff8000371ed270,ffff8000371ed2a0,ffff8000371ed1a0) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff800036fb42d8,ffffff9c,784f79f810e0,1c0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff8000371ed420) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371ed420) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x784f79f810a0, count: 8 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xffffffff836190a8, 0xffff800012105200, 0, 1) -> d ddb{1}> trace memcpy() at memcpy+0x19 ffs_inode_alloc(fffffd807e445440,41c0,fffffd807f7d34e0,ffff8000371ed0a8) at ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 ufs_mkdir(ffff8000371ed110) at ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806ee31b28,ffff8000371ed270,ffff8000371ed2a0,ffff8000371ed1a0) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff800036fb42d8,ffffff9c,784f79f810e0,1c0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff8000371ed420) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371ed420) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x784f79f810a0, count: -7 ddb{1}> show registers rdi 0xfffffd8063420700 rsi 0xffff800012105200 rbp 0xffff8000371eced0 rbx 0 rdx 0x100 rcx 0x20 rax 0x19a r8 0xffffffffffffffff r9 0 r10 0x93b4e6b1be4b6ea4 r11 0xfffffd8063420700 r12 0xffff800000a5e000 r13 0xffff800000a5f000 r14 0xfffffd806f696378 r15 0xfffffd8064cc3bc0 rip 0xffffffff81fde5d9 memcpy+0x19 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff8000371ece48 ss 0x10 memcpy+0x19: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor) tid=80307 pid=64001 tcnt=1 stat=onproc flags process=2 proc=0 runpri=86, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800036fb5208,0xffffffff834fd8e0 process=0xffff800033589fc0 user=0xffff8000371e8000, vmspace=0xfffffd806ecbf8a0 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *64001 80307 45525 0 7 0x2 syz-executor 1722 4396 0 0 3 0x14280 nfsidl nfsio 43770 394240 0 0 3 0x14280 nfsidl nfsio 65227 10217 0 0 3 0x14280 nfsidl nfsio 19057 456462 0 0 3 0x14280 nfsidl nfsio 27096 119283 0 0 3 0x14280 nfsidl nfsio 60513 276337 0 0 3 0x14280 nfsidl nfsio 26123 373327 0 0 3 0x14280 nfsidl nfsio 8801 303774 0 0 3 0x14280 nfsidl nfsio 22654 16901 0 0 3 0x14280 nfsidl nfsio 80773 398010 0 0 3 0x14280 nfsidl nfsio 28198 37139 0 0 3 0x14280 nfsidl nfsio 83189 7923 0 0 3 0x14280 nfsidl nfsio 10935 389011 0 0 3 0x14280 nfsidl nfsio 34202 219200 0 0 3 0x14280 nfsidl nfsio 48589 271874 0 0 3 0x14280 nfsidl nfsio 16761 337071 0 0 3 0x14280 nfsidl nfsio 13925 471183 0 0 3 0x14280 nfsidl nfsio 22408 422480 0 0 3 0x14280 nfsidl nfsio 49279 336305 0 0 3 0x14280 nfsidl nfsio 51852 79422 0 0 3 0x14280 nfsidl nfsio 30989 191540 1 0 3 0x100083 ttyopn getty 75299 437764 0 0 3 0x14200 bored sosplice 45525 18108 8803 0 3 0x82 nanoslp syz-executor 8803 388854 42234 0 3 0x10008a sigsusp ksh 42234 254052 61507 0 3 0x98 kqread sshd-session 61507 326167 5134 0 3 0x92 kqread sshd-session 5134 81218 1 0 3 0x88 kqread sshd 5186 247509 5526 74 3 0x1100092 bpf pflogd 5526 137161 1 0 3 0x80 sbwait pflogd 9502 36372 78548 73 3 0x1100090 kqread syslogd 78548 425351 1 0 3 0x100082 sbwait syslogd 84716 412467 1 0 3 0x100080 kqread resolvd 48000 267346 45410 77 3 0x100092 kqread dhcpleased 78713 5842 45410 77 3 0x100092 kqread dhcpleased 45410 242683 1 0 3 0x80 kqread dhcpleased 8901 412069 0 0 3 0x14200 bored smr 77373 480620 0 0 3 0x14200 pgzero zerothread 91221 131356 0 0 3 0x14200 aiodoned aiodoned 91251 402590 0 0 3 0x14200 syncer update 3066 12092 0 0 3 0x14200 cleaner cleaner 71536 297390 0 0 3 0x14200 reaper reaper 25127 473645 0 0 3 0x14200 pgdaemon pagedaemon 48275 10530 0 0 3 0x14200 bored viomb 30956 78613 0 0 3 0x40014200 acpi0 acpi0 87710 278771 0 0 3 0x40014200 idle1 4072 167167 0 0 3 0x14200 bored softnet3 88278 5564 0 0 3 0x14200 bored softnet2 29617 109913 0 0 3 0x14200 bored softnet1 62273 234867 0 0 3 0x14200 bored softnet0 18247 278251 0 0 3 0x14200 bored systqmp 5765 468339 0 0 3 0x14200 bored systq 85316 24681 0 0 3 0x14200 tmoslp softclockmp 47471 164011 0 0 3 0x40014200 tmoslp softclock 43725 159986 0 0 7 0x40014200 idle0 1 121290 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 64001 (syz-executor) thread 0xffff800036fb42d8 (80307) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10184 10089K 10529K 166960K 13544 0 pcb 17 18K 20K 166960K 565 0 rtable 46 3K 9K 166960K 2650 0 pf 19 15K 25K 166960K 285 0 ifaddr 11 2K 8K 166960K 364 0 ifgroup 22 1K 2K 166960K 397 0 sysctl 3 0K 0K 166960K 9 0 counters 48 34K 36K 166960K 246 0 ioctlops 0 0K 4K 166960K 1832 0 iov 0 0K 28K 166960K 167 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1452 91K 92K 166960K 3731 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 30 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 94 0 dirhash 15 2K 3K 166960K 39 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 3 2K 89K 166960K 2970 0 sigio 0 0K 0K 166960K 205 0 proc 72 91K 140K 166960K 2684 0 subproc 0 0K 7K 166960K 1028 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 315 0 in_multi 11 0K 7K 166960K 937 0 ether_multi 1 0K 0K 166960K 9 0 mrt 1 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 109 493K 493K 166960K 109 0 exec 0 0K 1K 166960K 1729 0 pfkey data 0 0K 0K 166960K 28 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 126 5K 95K 166960K 25176 0 UVM aobj 96 6K 6K 166960K 122 0 pinsyscall 28 56K 103K 166960K 6197 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 212 0 NDP 4 0K 1K 166960K 265 0 temp 44 6822K 6945K 166960K 108349 0 kqueue 13 20K 35K 166960K 286 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 328 0 325 2 1 1 2 0 8 0 rtentry 112 936 0 925 5 2 3 4 0 8 0 unpcb 144 1265 0 1248 16 14 2 6 0 8 1 syncache 336 12 0 12 7 7 0 1 0 8 0 tcpqe 32 4 0 4 3 3 0 1 0 8 0 tcpcb 808 840 0 835 19 18 1 8 0 8 0 arp 120 169 0 167 1 0 1 1 0 8 0 inpcb 336 2934 0 2926 45 43 2 15 0 8 0 nd6 136 248 0 248 1 0 1 1 0 8 1 pkpcb 40 13 0 13 7 7 0 1 0 8 0 kcovpl 48 79 0 79 1 0 1 1 0 8 1 ppxss 1168 12 0 12 6 5 1 1 0 8 1 pffrag 232 13 0 9 2 1 1 1 0 482 0 pffrnode 88 13 0 9 2 1 1 1 0 8 0 pffrent 40 106 0 102 2 1 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 245 0 185 1 0 1 1 0 8 0 pfstkey 128 253 0 193 3 0 3 3 0 8 0 pfstate 376 247 0 189 8 1 7 7 0 8 0 pfrule 1344 50 0 30 3 1 2 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 3725 0 3639 38 10 28 32 0 8 15 art_table 32 3727 0 3639 5 1 4 5 0 8 0 art_node 16 931 0 922 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 7 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 91 0 81 1 0 1 1 0 8 0 shmpl 112 119 0 26 3 0 3 3 0 8 0 dirhash 1024 35 0 16 3 0 3 3 0 8 0 dino2pl 256 4611 0 2965 105 1 104 104 0 8 0 ffsino 272 4746 0 3100 111 0 111 111 0 8 0 nchpl 144 7332 0 6711 67 34 33 67 0 8 6 uvmvnodes 80 6730 0 0 138 0 138 138 0 8 0 vnodes 216 6730 0 0 374 0 374 374 0 8 0 namei 1024 32019 0 32018 5 4 1 3 0 8 0 percpumem 16 137 0 99 1 0 1 1 0 8 0 kstatmem 264 206 0 198 2 0 2 2 0 8 1 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 4 0 4 3 3 0 1 0 8 0 scxspl 216 53983 0 53983 12 11 1 8 1 8 1 plimitpl 152 792 0 776 1 0 1 1 0 8 0 sigapl 424 3179 0 3117 13 4 9 9 0 8 0 futexpl 64 25154 0 25154 6 5 1 1 0 8 1 knotepl 120 668 0 0 16 0 16 16 0 8 0 kqueuepl 216 466 0 457 4 2 2 3 0 8 1 pipepl 320 1018 0 991 10 2 8 8 0 8 5 fdescpl 496 3119 0 3102 7 2 5 5 0 8 1 filepl 152 17509 0 17403 42 27 15 18 0 8 8 lockfpl 104 773 0 771 2 1 1 2 0 8 0 lockfspl 48 312 0 310 1 0 1 1 0 8 0 sessionpl 144 101 0 92 1 0 1 1 0 8 0 pgrppl 48 467 0 451 1 0 1 1 0 8 0 ucredpl 104 2585 0 2570 1 0 1 1 0 8 0 zombiepl 144 3430 0 3424 2 1 1 1 0 8 0 processpl 1160 3179 0 3117 7 1 6 6 0 8 0 procpl 648 5988 0 5926 12 4 8 8 0 8 1 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 11 0 11 7 6 1 1 0 8 1 sockpl 664 4570 0 4542 53 49 4 17 0 8 0 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 13 0 0 2 0 2 2 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 292 0 0 32 0 32 32 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 756 0 0 43 0 43 43 0 8 0 bufpl 280 12263 0 3982 592 0 592 592 0 8 0 anonpl 24 447735 0 443472 112 53 59 84 0 185 9 amapchunkpl 152 81610 0 81347 64 34 30 39 0 158 14 amappl16 200 7961 0 7925 47 33 14 16 0 8 8 amappl15 192 7 0 7 2 2 0 1 0 8 0 amappl14 184 278 0 266 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 5025 0 5009 3 1 2 2 0 8 0 amappl11 160 56 0 42 1 0 1 1 0 8 0 amappl10 152 10 0 10 1 1 0 1 0 8 0 amappl9 144 140 0 140 2 2 0 1 0 8 0 amappl8 136 22 0 19 1 0 1 1 0 8 0 amappl7 128 260 0 247 1 0 1 1 0 8 0 amappl6 120 874 0 872 1 0 1 1 0 8 0 amappl5 112 425 0 411 1 0 1 1 0 8 0 amappl4 104 552 0 532 1 0 1 1 0 8 0 amappl3 96 15963 0 15918 5 1 4 4 0 8 0 amappl2 88 1757 0 1685 2 0 2 2 0 8 0 amappl1 80 22498 0 21990 15 1 14 15 0 8 0 amappl 88 24067 0 23995 5 0 5 5 0 92 0 dma8192 8192 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 66 0 66 2 2 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 8 0 8 3 2 1 1 0 8 1 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 121 0 26 2 0 2 2 0 8 0 uaddrrnd 24 3119 0 3102 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3119 0 3102 1 0 1 1 0 8 0 vmmpekpl 168 27775 0 27742 3 0 3 3 0 8 0 vmmpepl 168 206857 0 205620 128 32 96 98 0 357 14 vmsppl 440 3118 0 3102 6 2 4 5 0 8 2 rwobjpl 56 60958 0 53381 117 6 111 111 0 8 0 pdppl 4096 6245 0 6204 205 158 47 83 0 8 6 pvpl 32 32661 0 0 263 0 263 263 0 265 0 pmappl 248 3118 0 3102 3 0 3 3 0 8 1 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 634 0 252 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83466ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff8362f2d8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362f2d8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1219 sched_idle(ffffffff83466ff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: 7 ddb{0}> trace x86_ipi_db(ffffffff83466ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff8362f2d8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362f2d8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1219 sched_idle(ffffffff83466ff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at memcpy+0x19: repe movsq (%rsi),%es:(%rdi) memcpy() at memcpy+0x19 ffs_inode_alloc(fffffd807e445440,41c0,fffffd807f7d34e0,ffff8000371ed0a8) at ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 ufs_mkdir(ffff8000371ed110) at ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806ee31b28,ffff8000371ed270,ffff8000371ed2a0,ffff8000371ed1a0) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff800036fb42d8,ffffff9c,784f79f810e0,1c0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff8000371ed420) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371ed420) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x784f79f810a0, count: 8 ddb{1}> trace memcpy() at memcpy+0x19 ffs_inode_alloc(fffffd807e445440,41c0,fffffd807f7d34e0,ffff8000371ed0a8) at ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 ufs_mkdir(ffff8000371ed110) at ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806ee31b28,ffff8000371ed270,ffff8000371ed2a0,ffff8000371ed1a0) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff800036fb42d8,ffffff9c,784f79f810e0,1c0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff8000371ed420) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371ed420) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x784f79f810a0, count: -7