uvm_fault(0xffffffff83a12a48, 0xffff8000294f4900, 0, 2) -> d kernel: page fault trap, code=2 Stopped at memcpy+0x19: repe movsq (%rsi),%es:(%rdi) TID PID UID PRFLAGS PFLAGS CPU COMMAND 183840 60007 0 0 0 0 syz-executor memcpy() at memcpy+0x19 ufs_inactive(ffff80002a2e87a0) at ufs_inactive+0x2e1 sys/ufs/ufs/ufs_inode.c:95 VOP_INACTIVE(fffffd80747b6038,ffff800032bbbcb8) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vrele(fffffd80747b6038) at vrele+0x129 sys/kern/vfs_subr.c:837 fdfree(ffff800032bbbcb8) at fdfree+0x286 sys/kern/kern_descrip.c:1216 exit1(ffff800032bbbcb8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800032bbbcb8,ffff80002a2e8a20,ffff80002a2e8970) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a2e8a20) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2e8a20) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7aecd6c251c0, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xffffffff83a12a48, 0xffff8000294f4900, 0, 2) -> d ddb{1}> trace memcpy() at memcpy+0x19 ufs_inactive(ffff80002a2e87a0) at ufs_inactive+0x2e1 sys/ufs/ufs/ufs_inode.c:95 VOP_INACTIVE(fffffd80747b6038,ffff800032bbbcb8) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vrele(fffffd80747b6038) at vrele+0x129 sys/kern/vfs_subr.c:837 fdfree(ffff800032bbbcb8) at fdfree+0x286 sys/kern/kern_descrip.c:1216 exit1(ffff800032bbbcb8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800032bbbcb8,ffff80002a2e8a20,ffff80002a2e8970) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a2e8a20) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2e8a20) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7aecd6c251c0, count: -9 ddb{1}> show registers rdi 0xffff8000294f4900 rsi 0xfffffd806eb1d300 rbp 0xffff80002a2e8730 rbx 0xffff8000294f4900 rdx 0x100 rcx 0x20 rax 0xffff8000299bdff0 r8 0xffffffffffffffff r9 0 r10 0xa0eb41ae71313752 r11 0xffff8000294f4900 r12 0x2900 __ALIGN_SIZE+0x1900 r13 0x2 r14 0 r15 0xfffffd80775fa230 rip 0xffffffff8318dbe9 memcpy+0x19 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80002a2e86c8 ss 0x10 memcpy+0x19: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor) tid=180814 pid=54798 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff800032bbbcb8 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff800032bbd790,0xffff800032bb82c8 process=0xffff80003c4749c8 user=0xffff80002a2e3000, vmspace=0xfffffd806c8a7200 estcpu=36, cpticks=18, pctcpu=0.14, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 60007 183840 51948 0 7 0 syz-executor 60007 34427 51948 0 3 0x4000080 kqsel syz-executor 60007 248242 51948 0 3 0x4000080 fsleep syz-executor 23335 224859 27231 0 3 0x81 nanoslp syz-executor 23335 364275 27231 0 3 0x4000081 ttyout syz-executor 23335 229400 27231 0 3 0x4000081 fsleep syz-executor 88598 299909 65020 0 3 0x80 nanoslp syz-executor 88598 510043 65020 0 3 0x4000080 fsleep syz-executor 88598 245371 65020 0 3 0x4000080 fsleep syz-executor 88598 2181 65020 0 3 0x4000080 fsleep syz-executor 88598 1199 65020 0 3 0x4000080 fsleep syz-executor 88598 82555 65020 0 3 0x4000080 fsleep syz-executor 27231 384669 82005 0 3 0x82 nanoslp syz-executor 9452 72147 82005 0 3 0x82 nanoslp syz-executor 58235 235679 0 0 3 0x14280 nfsidl nfsio 74666 359914 0 0 3 0x14280 nfsidl nfsio 6170 334469 0 0 3 0x14280 nfsidl nfsio 48967 438701 0 0 3 0x14280 nfsidl nfsio 58349 154768 0 0 3 0x14280 nfsidl nfsio 31761 403309 0 0 3 0x14280 nfsidl nfsio 73967 132871 0 0 3 0x14280 nfsidl nfsio 15947 193667 0 0 3 0x14280 nfsidl nfsio 43202 499958 0 0 3 0x14280 nfsidl nfsio 41849 123098 0 0 3 0x14280 nfsidl nfsio 94202 104672 0 0 3 0x14280 nfsidl nfsio 57038 365931 0 0 3 0x14280 nfsidl nfsio 98330 78160 0 0 3 0x14280 nfsidl nfsio 1949 312368 0 0 3 0x14280 nfsidl nfsio 88691 16647 0 0 3 0x14280 nfsidl nfsio 53218 306437 0 0 3 0x14280 nfsidl nfsio 91663 260104 0 0 3 0x14280 nfsidl nfsio 42320 424392 0 0 3 0x14280 nfsidl nfsio 65029 117764 0 0 3 0x14280 nfsidl nfsio 11560 161462 0 0 3 0x14280 nfsidl nfsio 38061 487952 26550 0 3 0x100082 sbwait arp 26550 362139 68707 0 3 0x10008a sigsusp sh 68707 355590 82005 0 3 0x82 wait syz-executor 51948 463045 82005 0 3 0x82 nanoslp syz-executor 65020 313395 82005 0 3 0x82 nanoslp syz-executor 82005 503774 11090 0 3 0x82 wait syz-executor 11090 238377 90233 0 3 0x10008a sigsusp ksh 90233 298330 74426 0 3 0x98 kqread sshd-session 74426 177538 1716 0 3 0x92 kqread sshd-session 58741 400220 1 0 3 0x100083 ttyopn getty 1716 398694 1 0 3 0x88 kqread sshd 34297 416851 59251 74 3 0x1100092 bpf pflogd 59251 403732 1 0 3 0x80 sbwait pflogd 78445 517533 39334 73 3 0x1100090 kqread syslogd 39334 476345 1 0 3 0x100082 sbwait syslogd 10262 104063 1 0 3 0x100080 kqread resolvd 96723 476636 91548 77 3 0x100092 kqread dhcpleased 15407 210113 91548 77 3 0x100092 kqread dhcpleased 91548 235086 1 0 3 0x80 kqread dhcpleased 29080 516872 0 0 3 0x14200 bored smr 50615 99185 0 0 2 0x14200 zerothread 68863 316698 0 0 3 0x14200 aiodoned aiodoned 88707 164156 0 0 3 0x14200 syncer update 40442 109084 0 0 3 0x14200 cleaner cleaner 90338 262660 0 0 3 0x14200 reaper reaper 71980 331712 0 0 3 0x14200 pgdaemon pagedaemon 17037 294264 0 0 3 0x14200 bored viomb 15166 279635 0 0 3 0x40014200 acpi0 acpi0 61468 145334 0 0 3 0x40014200 idle1 96068 331489 0 0 3 0x14200 bored softnet1 94232 412781 0 0 3 0x14200 bored softnet0 4227 303354 0 0 3 0x14200 bored systqmp 5779 456571 0 0 3 0x14200 bored systq 83605 366071 0 0 3 0x14200 tmoslp softclockmp 53043 132373 0 0 3 0x40014200 tmoslp softclock 62595 326596 0 0 3 0x40014200 idle0 1 352976 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11094 12303K 12501K 166960K 13418 0 pcb 17 14K 15K 166960K 205 0 rtable 190 18K 18K 166960K 536 0 pf 48 20K 82K 166960K 165 0 ifaddr 37 5K 7K 166960K 91 0 ifgroup 65 2K 3K 166960K 138 0 sysctl 3 1K 9K 166960K 8 0 counters 76 37K 38K 166960K 140 0 ioctlops 0 0K 4K 166960K 1784 0 iov 1 0K 16K 166960K 33 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1351 85K 85K 166960K 2112 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 15 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 96 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 237K 166960K 935 0 sigio 0 0K 0K 166960K 10 0 proc 72 115K 164K 166960K 714 0 subproc 72 4K 4K 166960K 109 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 77 0 in_multi 64 4K 6K 166960K 168 0 ether_multi 1 0K 0K 166960K 10 0 mrt 3 0K 0K 166960K 20 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 532 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 234 169K 190K 166960K 10049 0 UVM aobj 21 4K 4K 166960K 24 0 pinsyscall 42 84K 104K 166960K 2217 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 36 0 NDP 15 0K 1K 166960K 61 0 temp 53 9081K 9335K 166960K 45642 0 kqueue 14 22K 32K 166960K 157 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 83 0 79 1 0 1 1 0 8 0 rtentry 176 160 0 91 5 0 5 5 0 8 0 unpcb 144 662 0 645 11 5 6 6 0 8 5 syncache 336 11 0 11 2 1 1 1 0 8 1 tcpqe 32 5 0 5 2 1 1 1 0 8 1 tcpcb 736 222 0 213 8 6 2 7 0 8 1 arp 136 29 0 13 1 0 1 1 0 8 0 ipq 40 6 0 2 1 0 1 1 0 8 0 ipqe 40 9 0 5 1 0 1 1 0 8 0 inpcb 328 879 0 866 20 11 9 10 0 8 7 nd6 152 35 0 18 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1192 22 0 21 2 1 1 1 0 8 0 pppxif 1576 3 0 3 1 0 1 1 0 8 1 pfstscr 40 1 0 0 1 0 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 7 0 2 1 0 1 1 0 8 0 pfsrclim 320 2 0 1 1 0 1 1 0 8 0 pfanchor 1288 3 0 0 1 0 1 1 0 8 0 pftag 88 3 0 1 1 0 1 1 0 8 0 pfqueue 320 1 0 0 1 0 1 1 0 8 0 pfstitem 24 21 0 10 1 0 1 1 0 8 0 pfstkey 128 21 0 10 1 0 1 1 0 8 0 pfstate 448 18 0 10 2 0 2 2 0 8 0 pfrule 1360 35 0 24 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 674 0 374 28 8 20 26 0 8 0 art_table 40 675 0 374 5 0 5 5 0 8 0 art_node 32 160 0 98 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 94 0 84 1 0 1 1 0 8 0 shmpl 112 21 0 3 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2890 0 1419 93 0 93 93 0 8 0 ffsino 296 2891 0 1420 114 0 114 114 0 8 0 nchpl 144 4081 0 2360 64 0 64 64 0 8 0 rtmask 32 3 0 3 2 1 1 1 0 8 1 vnodes 216 3462 0 0 193 0 193 193 0 8 0 namei 1024 13414 0 13414 3 1 2 2 0 8 2 percpumem 16 85 0 32 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 0 1 0 1 1 0 8 0 kstatmem 264 82 0 46 3 0 3 3 0 8 0 scxspl 216 22070 0 22070 10 8 2 8 1 8 2 plimitpl 152 99 0 81 1 0 1 1 0 8 0 sigapl 424 1254 0 1188 9 1 8 9 0 8 0 knotepl 120 563 0 0 18 0 18 18 0 8 0 kqueuepl 224 253 0 241 3 1 2 2 0 8 1 pipepl 344 220 0 193 6 3 3 6 0 8 0 fdescpl 528 1217 0 1187 3 0 3 3 0 8 0 filepl 160 6514 0 6295 23 7 16 17 0 8 5 lockfpl 104 456 0 451 1 0 1 1 0 8 0 lockfspl 48 217 0 214 1 0 1 1 0 8 0 sessionpl 144 107 0 97 1 0 1 1 0 8 0 pgrppl 48 127 0 109 1 0 1 1 0 8 0 ucredpl 104 818 0 805 1 0 1 1 0 8 0 zombiepl 144 1192 0 1188 1 0 1 1 0 8 0 processpl 1232 1254 0 1188 6 0 6 6 0 8 0 procpl 664 2441 0 2366 8 0 8 8 0 8 0 sosppl 176 6 0 6 2 1 1 1 0 8 1 sockpl 752 1643 0 1609 38 26 12 19 0 8 8 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 34 0 0 4 0 4 4 0 8 0 mtagpl 96 43 0 0 2 0 2 2 0 8 0 mbufpl 256 235 0 0 15 0 15 15 0 8 0 bufpl 280 8519 0 2389 438 0 438 438 0 8 0 anonpl 32 10418 0 0 85 0 85 85 0 246 0 amapchunkpl 152 32440 0 31996 40 12 28 31 0 158 6 amappl16 200 4546 0 4454 36 19 17 23 0 8 7 amappl15 192 22 0 22 2 2 0 1 0 8 0 amappl14 184 475 0 473 1 0 1 1 0 8 0 amappl13 176 173 0 160 1 0 1 1 0 8 0 amappl12 168 1483 0 1454 2 0 2 2 0 8 0 amappl11 160 31 0 31 2 2 0 1 0 8 0 amappl10 152 74 0 60 1 0 1 1 0 8 0 amappl9 144 267 0 267 1 1 0 1 0 8 0 amappl8 136 117 0 113 1 0 1 1 0 8 0 amappl7 128 174 0 159 1 0 1 1 0 8 0 amappl6 120 209 0 206 1 0 1 1 0 8 0 amappl5 112 133 0 122 1 0 1 1 0 8 0 amappl4 104 333 0 312 1 0 1 1 0 8 0 amappl3 96 6490 0 6386 4 0 4 4 0 8 0 amappl2 88 657 0 593 2 0 2 2 0 8 0 amappl1 80 16073 0 15445 19 2 17 17 0 8 2 amappl 88 9094 0 8937 5 0 5 5 0 92 0 uvmvnodes 80 117 0 0 3 0 3 3 0 8 0 dma65536 65536 2 0 2 2 1 1 1 0 8 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 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 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 7 0 7 2 1 1 1 0 8 1 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 23 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1217 0 1187 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1217 0 1187 1 0 1 1 0 8 0 vmmpekpl 168 12209 0 12156 3 0 3 3 0 8 0 vmmpepl 168 88521 0 86588 117 13 104 106 0 357 6 vmsppl 488 1216 0 1187 5 0 5 5 0 8 0 rwobjpl 80 27687 0 26510 33 3 30 31 0 8 0 pdppl 4096 2441 0 2374 117 44 73 85 0 8 6 pvpl 32 20122 0 0 164 1 163 164 0 265 0 pmappl 256 1216 0 1187 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 305 0 64 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83920ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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(ffffffff83a32700) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a32700) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff80003c4a9dc0,ffff80000007a180) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x18f end of kernel end trace frame: 0x73c4ce2a78d0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff83920ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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(ffffffff83a32700) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a32700) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff80003c4a9dc0,ffff80000007a180) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x18f end of kernel end trace frame: 0x73c4ce2a78d0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at memcpy+0x19: repe movsq (%rsi),%es:(%rdi) memcpy() at memcpy+0x19 ufs_inactive(ffff80002a2e87a0) at ufs_inactive+0x2e1 sys/ufs/ufs/ufs_inode.c:95 VOP_INACTIVE(fffffd80747b6038,ffff800032bbbcb8) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vrele(fffffd80747b6038) at vrele+0x129 sys/kern/vfs_subr.c:837 fdfree(ffff800032bbbcb8) at fdfree+0x286 sys/kern/kern_descrip.c:1216 exit1(ffff800032bbbcb8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800032bbbcb8,ffff80002a2e8a20,ffff80002a2e8970) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a2e8a20) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2e8a20) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7aecd6c251c0, count: 6 ddb{1}> trace memcpy() at memcpy+0x19 ufs_inactive(ffff80002a2e87a0) at ufs_inactive+0x2e1 sys/ufs/ufs/ufs_inode.c:95 VOP_INACTIVE(fffffd80747b6038,ffff800032bbbcb8) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vrele(fffffd80747b6038) at vrele+0x129 sys/kern/vfs_subr.c:837 fdfree(ffff800032bbbcb8) at fdfree+0x286 sys/kern/kern_descrip.c:1216 exit1(ffff800032bbbcb8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800032bbbcb8,ffff80002a2e8a20,ffff80002a2e8970) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a2e8a20) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2e8a20) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7aecd6c251c0, count: -9