kernel: page fault trap, code=3 Stopped at copyout+0x57: repe movsq (%rsi),%es:(%rdi) TID PID UID PRFLAGS PFLAGS CPU COMMAND 401816 23081 0 0x2 0 1 syz-executor *515606 67170 0 0x2 0 0K syz-executor copyout() at copyout+0x57 ufs_readdir(ffff80002a35a010) at ufs_readdir+0x419 sys/ufs/ufs/ufs_vnops.c:1403 VOP_READDIR(fffffd805df9e600,ffff80002a35a090,fffffd80097fb4e0,ffff80002a35a0d4) at VOP_READDIR+0x126 sys/kern/vfs_vops.c:453 sys_getdents(ffff80002a2baf78,ffff80002a35a230,ffff80002a35a180) at sys_getdents+0x2f2 sys/kern/vfs_syscalls.c:3179 syscall(ffff80002a35a230) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a35a230) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73e0343df380, count: 9 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: attempt to access user address 0x40f5f2ff000 in supervisor mode ddb{0}> trace copyout() at copyout+0x57 ufs_readdir(ffff80002a35a010) at ufs_readdir+0x419 sys/ufs/ufs/ufs_vnops.c:1403 VOP_READDIR(fffffd805df9e600,ffff80002a35a090,fffffd80097fb4e0,ffff80002a35a0d4) at VOP_READDIR+0x126 sys/kern/vfs_vops.c:453 sys_getdents(ffff80002a2baf78,ffff80002a35a230,ffff80002a35a180) at sys_getdents+0x2f2 sys/kern/vfs_syscalls.c:3179 syscall(ffff80002a35a230) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a35a230) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73e0343df380, count: -6 ddb{0}> show registers rdi 0x40f5f2ff000 rsi 0xffff80002a359e38 rbp 0xffff80002a359e20 rbx 0xffff80002a35a0c0 rdx 0xffff80002a355000 rcx 0x4 rax 0x20 r8 0x7f7fffffc000 r9 0 r10 0xe1e69b6f795f87b2 r11 0xffffffff81f0c970 copy_fault r12 0x40f5f2ff000 r13 0x20 r14 0xffff80002a35a090 r15 0 rip 0xffffffff81f0c897 copyout+0x57 cs 0x8 rflags 0x50202 acpi_pdirpa+0x3c073 rsp 0xffff80002a359d70 ss 0x10 copyout+0x57: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor) tid=515606 pid=67170 tcnt=1 stat=onproc flags process=2 proc=0 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2ba538,0xffff80002a2bb218 process=0xffff8000ffff7a28 user=0xffff80002a355000, vmspace=0xfffffd800b026000 estcpu=36, cpticks=0, pctcpu=0.38, user=5, sys=106, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 16649 308124 63255 0 2 0 syz-executor 16649 512818 63255 0 3 0x4000080 fsleep syz-executor 95005 508912 90057 0 2 0x82000 syz-executor 95005 69573 90057 0 3 0x4002000 suspend syz-executor 34272 497084 62932 0 2 0 syz-executor 34272 946 62932 0 3 0x4000080 fsleep syz-executor 34272 76345 62932 0 3 0x4000080 fsleep syz-executor 33708 422467 58647 0 2 0 syz-executor 33708 87334 58647 0 3 0x4000080 fsleep syz-executor 63255 97446 74863 0 2 0xc82 syz-executor 43268 520391 28662 0 3 0x80 nanoslp syz-executor 43268 52071 28662 0 3 0x4000080 kqread syz-executor 43268 204687 28662 0 3 0x4000080 fsleep syz-executor 90459 218644 0 0 3 0x14200 acct acct 12059 321451 1 0 3 0x100083 ttyin getty 62932 147402 74863 0 3 0x82 nanoslp syz-executor 90057 514686 74863 0 3 0x82 nanoslp syz-executor 28662 454367 74863 0 2 0xc82 syz-executor 46129 132567 0 0 3 0x14200 bored sosplice 23081 401816 74863 0 7 0x2 syz-executor 58647 513148 74863 0 2 0xc82 syz-executor 79907 251594 74863 0 3 0x10000082 nanoslp syz-executor *67170 515606 74863 0 7 0x2 syz-executor 74863 504775 26876 0 2 0x2 syz-executor 26876 323821 87599 0 3 0x10008a sigsusp ksh 87599 62082 10410 0 3 0x98 kqread sshd-session 10410 41221 13478 0 3 0x92 kqread sshd-session 13478 487718 1 0 3 0x88 kqread sshd 74993 57826 43833 74 3 0x1100092 bpf pflogd 43833 343975 1 0 3 0x80 sbwait pflogd 78527 29106 22441 73 3 0x1100090 kqread syslogd 22441 493162 1 0 3 0x100082 sbwait syslogd 10520 339515 1 0 3 0x100080 kqread resolvd 68234 71664 31917 77 3 0x100092 kqread dhcpleased 93135 755 31917 77 3 0x100092 kqread dhcpleased 31917 193096 1 0 3 0x80 kqread dhcpleased 96454 447655 0 0 3 0x14200 bored smr 60753 443042 0 0 2 0x14200 zerothread 76877 123347 0 0 3 0x14200 aiodoned aiodoned 14573 205219 0 0 3 0x14200 syncer update 13697 216967 0 0 3 0x14200 cleaner cleaner 90061 150831 0 0 3 0x14200 reaper reaper 89243 255895 0 0 3 0x14200 pgdaemon pagedaemon 47552 334727 0 0 3 0x14200 bored viomb 23697 361981 0 0 3 0x40014200 acpi0 acpi0 21588 165127 0 0 3 0x40014200 idle1 42037 355486 0 0 3 0x14200 bored softnet3 86721 133095 0 0 3 0x14200 bored softnet2 41912 205867 0 0 3 0x14200 bored softnet1 11966 250891 0 0 2 0x14200 softnet0 29177 222498 0 0 3 0x14200 bored systqmp 63008 252572 0 0 3 0x14200 bored systq 66779 500610 0 0 3 0x14200 tmoslp softclockmp 83965 421192 0 0 2 0x40014200 softclock 11125 515291 0 0 3 0x40014200 idle0 1 335267 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 23081 (syz-executor) thread 0xffff8000ffffd9a8 (401816) Process 67170 (syz-executor) thread 0xffff80002a2baf78 (515606) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10230 11069K 11858K 166960K 15826 0 pcb 18 18K 32K 166960K 576 0 rtable 235 12K 13K 166960K 813 0 pf 41 18K 67487K 166960K 285 0 ifaddr 41 7K 7K 166960K 167 0 ifgroup 63 2K 3K 166960K 314 0 sysctl 4 1K 9K 166960K 17 0 counters 72 37K 38K 166960K 302 0 ioctlops 0 0K 4K 166960K 2094 0 iov 0 0K 30K 166960K 234 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1551 98K 98K 166960K 4132 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 45 0 VM map 2 1K 1K 166960K 2 0 sem 27 17K 22K 166960K 159 0 dirhash 12 2K 2K 166960K 66 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 236K 166960K 2506 0 sigio 0 0K 0K 166960K 71 0 proc 72 91K 128K 166960K 928 0 subproc 72 4K 4K 166960K 118 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 391 0 in_multi 77 5K 7K 166960K 225 0 ether_multi 1 0K 0K 166960K 20 0 mrt 0 0K 0K 166960K 33 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 830 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 219 159K 181K 166960K 23753 0 UVM aobj 68 5K 6K 166960K 74 0 pinsyscall 40 80K 104K 166960K 3834 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 141 0 NDP 16 0K 1K 166960K 118 0 temp 79 8760K 8824K 166960K 112790 0 kqueue 14 22K 32K 166960K 479 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 120 371 0 368 5 4 1 3 0 8 0 rtentry 176 226 0 131 5 0 5 5 0 8 0 unpcb 144 2281 0 2262 18 12 6 6 0 8 5 syncache 336 22 0 22 4 3 1 1 0 8 1 tcpqe 32 3 0 3 1 1 0 1 0 8 0 tcpcb 736 1085 0 1080 25 18 7 13 0 8 6 arp 128 39 0 18 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 130 0 130 2 2 0 2 0 8 0 inpcb 328 3274 0 3264 33 23 10 20 0 8 8 nd6 144 45 0 23 1 0 1 1 0 8 0 pkpcb 40 157 0 157 3 2 1 1 0 8 1 kcovpl 48 13 0 5 1 0 1 1 0 8 0 mppekey 1024 3 0 3 3 2 1 1 0 8 1 ppxss 1192 79 0 79 3 2 1 1 0 8 1 pppxif 1504 17 0 17 4 3 1 1 0 8 1 pfstscr 40 2 0 2 2 1 1 1 0 8 1 pffrag 232 9 0 2 1 0 1 1 0 482 0 pffrnode 88 8 0 1 1 0 1 1 0 8 0 pffrent 40 85 0 78 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 5 0 1 1 0 1 1 0 8 0 pfanchor 1288 6 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 114 0 34 1 0 1 1 0 8 0 pfstkey 128 116 0 36 3 0 3 3 0 8 0 pfstate 384 116 0 36 8 0 8 8 0 8 0 pfrule 1344 45 0 26 2 0 2 2 0 8 0 rttmr 136 8 0 8 3 2 1 1 0 8 1 art_heap8 4096 3 0 1 3 0 3 3 0 8 1 art_heap4 256 1016 0 593 39 12 27 29 0 8 0 art_table 32 1019 0 594 4 0 4 4 0 8 0 art_node 16 222 0 146 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 3 2 2 0 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 79 0 54 1 0 1 1 0 8 0 shmpl 112 71 0 6 2 0 2 2 0 8 0 dirhash 1024 53 0 36 3 0 3 3 0 8 0 dino2pl 256 5956 0 4439 96 0 96 96 0 8 0 ffsino 288 5956 0 4439 109 0 109 109 0 8 0 nchpl 144 9421 0 8866 64 40 24 64 0 8 0 rtmask 32 9 0 9 2 2 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 34478 0 34478 3 2 1 2 0 8 1 percpumem 16 166 0 115 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 190 0 156 3 0 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 10 0 10 3 2 1 1 0 8 1 scxspl 216 34337 0 34337 10 8 2 4 1 8 2 plimitpl 152 385 0 368 1 0 1 1 0 8 0 sigapl 424 2819 0 2769 8 2 6 7 0 8 0 knotepl 120 574 0 0 18 0 18 18 0 8 0 kqueuepl 224 868 0 858 7 5 2 5 0 8 1 pipepl 336 371 0 343 8 5 3 8 0 8 0 fdescpl 520 2793 0 2764 3 0 3 3 0 8 0 filepl 160 20768 0 20546 41 21 20 23 0 8 8 lockfpl 104 1280 0 1278 3 1 2 2 0 8 1 lockfspl 48 452 0 450 1 0 1 1 0 8 0 sessionpl 144 48 0 39 1 0 1 1 0 8 0 pgrppl 48 221 0 204 1 0 1 1 0 8 0 ucredpl 104 2724 0 2710 1 0 1 1 0 8 0 zombiepl 144 2770 0 2769 2 1 1 1 0 8 0 processpl 1240 2819 0 2769 5 0 5 5 0 8 0 procpl 656 6606 0 6549 7 0 7 7 0 8 0 srpgc 96 10 0 10 3 3 0 1 0 8 0 sosppl 168 29 0 29 3 2 1 1 0 8 1 sockpl 728 6287 0 6255 76 63 13 24 0 8 8 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 132 0 0 17 1 16 17 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 27 0 0 4 0 4 4 0 8 0 mtagpl 96 80 0 0 2 0 2 2 0 8 0 mbufpl 256 1222 0 0 75 0 75 75 0 8 0 bufpl 280 10922 0 4780 440 0 440 440 0 8 1 anonpl 32 11648 0 0 94 0 94 94 0 246 0 amapchunkpl 152 80704 0 80269 40 14 26 30 0 158 4 amappl16 200 5656 0 5623 52 37 15 27 0 8 10 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 160 0 148 1 0 1 1 0 8 0 amappl13 176 1 0 1 1 1 0 1 0 8 0 amappl12 168 3576 0 3547 4 1 3 3 0 8 0 amappl11 160 64 0 50 1 0 1 1 0 8 0 amappl10 152 2 0 2 1 1 0 1 0 8 0 amappl9 144 255 0 255 1 1 0 1 0 8 0 amappl8 136 21 0 18 1 0 1 1 0 8 0 amappl7 128 143 0 130 1 0 1 1 0 8 0 amappl6 120 243 0 240 1 0 1 1 0 8 0 amappl5 112 142 0 131 1 0 1 1 0 8 0 amappl4 104 414 0 393 1 0 1 1 0 8 0 amappl3 96 16934 0 16832 5 1 4 4 0 8 0 amappl2 88 869 0 806 2 0 2 2 0 8 0 amappl1 80 22603 0 22007 17 2 15 17 0 8 0 amappl 88 22473 0 22326 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 8 0 8 2 1 1 1 0 8 1 dma128 128 258 0 258 4 3 1 1 0 8 1 dma64 64 8 0 8 2 2 0 1 0 8 0 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 73 0 6 2 0 2 2 0 8 0 uaddrrnd 24 2793 0 2764 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2793 0 2764 1 0 1 1 0 8 0 vmmpekpl 168 23501 0 23446 3 0 3 3 0 8 0 vmmpepl 168 180230 0 178334 124 22 102 110 0 357 4 vmsppl 480 2792 0 2764 6 1 5 5 0 8 0 rwobjpl 72 50613 0 43694 134 3 131 132 0 8 1 pdppl 4096 5593 0 5528 123 50 73 87 0 8 8 pvpl 32 18564 0 0 149 0 149 149 0 265 0 pmappl 256 2792 0 2764 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 522 0 95 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace copyout() at copyout+0x57 ufs_readdir(ffff80002a35a010) at ufs_readdir+0x419 sys/ufs/ufs/ufs_vnops.c:1403 VOP_READDIR(fffffd805df9e600,ffff80002a35a090,fffffd80097fb4e0,ffff80002a35a0d4) at VOP_READDIR+0x126 sys/kern/vfs_vops.c:453 sys_getdents(ffff80002a2baf78,ffff80002a35a230,ffff80002a35a180) at sys_getdents+0x2f2 sys/kern/vfs_syscalls.c:3179 syscall(ffff80002a35a230) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a35a230) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73e0343df380, count: -6 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) 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(ffffffff838f49c8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff838f49c8) at __mp_lock+0x192 sys/kern/kern_lock.c:162 __mp_acquire_count(ffffffff838f49c8,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2da sys/kern/kern_synch.c:366 biowait(fffffd806c75e6b8) at biowait+0xc1 sys/kern/vfs_bio.c:1242 bwrite(fffffd806c75e6b8) at bwrite+0x2e5 sys/kern/vfs_bio.c:754 ufs_dirremove(fffffd806c548550,fffffd806c3e0160,800c,1) at ufs_dirremove+0x2ac sys/ufs/ufs/ufs_lookup.c:919 ufs_rmdir(ffff80002a3d6ff8) at ufs_rmdir+0x287 sys/ufs/ufs/ufs_vnops.c:1248 VOP_RMDIR(fffffd806c548550,fffffd805e384e68,ffff80002a3d70d8) at VOP_RMDIR+0x19a sys/kern/vfs_vops.c:413 dounlinkat(ffff8000ffffd9a8,ffffff9c,7c88c5a6fa30,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1897 syscall(ffff80002a3d7250) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3d7250) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c88c5a6fa20, count: 1 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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(ffffffff838f49c8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff838f49c8) at __mp_lock+0x192 sys/kern/kern_lock.c:162 __mp_acquire_count(ffffffff838f49c8,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2da sys/kern/kern_synch.c:366 biowait(fffffd806c75e6b8) at biowait+0xc1 sys/kern/vfs_bio.c:1242 bwrite(fffffd806c75e6b8) at bwrite+0x2e5 sys/kern/vfs_bio.c:754 ufs_dirremove(fffffd806c548550,fffffd806c3e0160,800c,1) at ufs_dirremove+0x2ac sys/ufs/ufs/ufs_lookup.c:919 ufs_rmdir(ffff80002a3d6ff8) at ufs_rmdir+0x287 sys/ufs/ufs/ufs_vnops.c:1248 VOP_RMDIR(fffffd806c548550,fffffd805e384e68,ffff80002a3d70d8) at VOP_RMDIR+0x19a sys/kern/vfs_vops.c:413 dounlinkat(ffff8000ffffd9a8,ffffff9c,7c88c5a6fa30,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1897 syscall(ffff80002a3d7250) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3d7250) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c88c5a6fa20, count: -14