uvm_fault(0xffffffff8357fd28, 0xffff80000170f008, 0, 2) -> e kernel: page fault trap, code=2 Stopped at unveil_add_vnode+0xda: movq %rax,0x8(%r14,%r13,1) TID PID UID PRFLAGS PFLAGS CPU COMMAND *434432 35632 32767 0x502010 0x4080000 1K syz-executor 455654 65719 0 0x2 0 0 syz-executor unveil_add_vnode(ffff8000ffff4530,fffffd80726a7368) at unveil_add_vnode+0xda sys/kern/kern_unveil.c:391 unveil_add(ffff8000ffff4530,ffff800037000f58,ffff800037001013) at unveil_add+0x448 sys/kern/kern_unveil.c:494 sys_unveil(ffff8000ffff4530,ffff800037001140,ffff800037001090) at sys_unveil+0x60c sys/kern/vfs_syscalls.c:1020 syscall(ffff800037001140) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037001140) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdf0a318f9c0, count: 10 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(0xffffffff8357fd28, 0xffff80000170f008, 0, 2) -> e ddb{1}> trace unveil_add_vnode(ffff8000ffff4530,fffffd80726a7368) at unveil_add_vnode+0xda sys/kern/kern_unveil.c:391 unveil_add(ffff8000ffff4530,ffff800037000f58,ffff800037001013) at unveil_add+0x448 sys/kern/kern_unveil.c:494 sys_unveil(ffff8000ffff4530,ffff800037001140,ffff800037001090) at sys_unveil+0x60c sys/kern/vfs_syscalls.c:1020 syscall(ffff800037001140) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037001140) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdf0a318f9c0, count: -5 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800037000e80 rbx 0xffff800029fea448 rdx 0 rcx 0xffff8000ffff4530 rax 0xffffffffffffffff r8 0x40 r9 0xfffffd807f7d32d8 r10 0 r11 0x4195807f667aff13 r12 0xfffffd80726a7368 r13 0 r14 0xffff80000170f000 r15 0 rip 0xffffffff81c657fa unveil_add_vnode+0xda cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800037000e10 ss 0x10 unveil_add_vnode+0xda: movq %rax,0x8(%r14,%r13,1) ddb{1}> show proc PROC (syz-executor) tid=434432 pid=35632 tcnt=4 stat=onproc flags process=502010 proc=4080000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff800029fe6a90 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff800029fe6a90,0xffff8000ffff5470 process=0xffff800029fea448 user=0xffff800036ffc000, vmspace=0xfffffd807923ec20 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 35632 175163 26828 32767 3 0x502010 suspend syz-executor *35632 434432 26828 32767 7 0x4582010 syz-executor 35632 225251 26828 32767 4 0x4582010 syz-executor 35632 34260 26828 32767 4 0x4582010 syz-executor 65719 455654 6692 0 7 0x2 syz-executor 93286 63486 47063 32767 3 0x90 nanoslp syz-executor 93286 452234 47063 32767 3 0x4000090 kqread syz-executor 93286 170622 47063 32767 3 0x4000090 kqread syz-executor 93286 402893 47063 32767 3 0x4000090 fsleep syz-executor 52357 378364 3559 32767 3 0x90 nanoslp syz-executor 52357 390089 3559 32767 3 0x4000090 kqsel syz-executor 52357 91243 3559 32767 3 0x4000090 ttyin syz-executor 52357 265343 3559 32767 3 0x4000090 fsleep syz-executor 93768 231624 56354 32767 3 0x90 nanoslp syz-executor 93768 352371 56354 32767 3 0x4000090 fsleep syz-executor 93768 31074 56354 32767 3 0x4000090 lockf syz-executor 93768 317946 56354 32767 3 0x4000090 lockf syz-executor 47063 276513 19517 32767 3 0x90 nanoslp syz-executor 19517 503703 6692 0 3 0x82 wait syz-executor 3559 147361 88807 32767 3 0x90 nanoslp syz-executor 88807 386744 6692 0 3 0x82 wait syz-executor 52603 163920 56256 32767 3 0x90 nanoslp syz-executor 56256 105632 6692 0 3 0x82 wait syz-executor 20515 493525 42661 32767 3 0x90 nanoslp syz-executor 42661 197047 6692 0 3 0x82 wait syz-executor 26828 294150 43353 32767 3 0x90 nanoslp syz-executor 43353 319966 6692 0 3 0x82 wait syz-executor 56354 340327 67715 32767 3 0x90 nanoslp syz-executor 67715 51168 6692 0 3 0x82 wait syz-executor 23801 30851 1512 32767 3 0x10 biowait syz-executor 1512 282860 6692 0 3 0x82 wait syz-executor 70338 2222 8505 0 3 0x82 netio sshd-session 93598 427533 0 0 3 0x14200 bored sosplice 6692 372752 82880 0 3 0x82 kqread syz-executor 82880 159294 61731 0 3 0x10008a sigsusp ksh 61731 456294 47172 0 3 0x98 kqread sshd-session 47172 182496 8505 0 3 0x92 kqread sshd-session 2039 6023 1 0 3 0x100083 ttyin getty 8505 264160 1 0 3 0x88 kqread sshd 85196 290069 18789 73 3 0x1100090 kqread syslogd 18789 424472 1 0 3 0x100082 sbwait syslogd 68128 249160 1 0 3 0x100080 kqread resolvd 65058 231420 8480 77 3 0x100092 kqread dhcpleased 2259 334766 8480 77 3 0x100092 kqread dhcpleased 8480 390733 1 0 3 0x80 kqread dhcpleased 8432 213634 0 0 3 0x14200 bored smr 53873 5182 0 0 3 0x14200 pgzero zerothread 89077 425753 0 0 3 0x14200 aiodoned aiodoned 9883 190989 0 0 3 0x14200 syncer update 20980 175806 0 0 3 0x14200 cleaner cleaner 62136 165822 0 0 3 0x14200 reaper reaper 26318 164624 0 0 3 0x14200 pgdaemon pagedaemon 96059 68958 0 0 3 0x14200 bored viomb 70625 224678 0 0 3 0x40014200 acpi0 acpi0 62457 445446 0 0 3 0x40014200 idle1 25578 2100 0 0 3 0x14200 bored softnet3 18180 180497 0 0 3 0x14200 bored softnet2 2559 258060 0 0 3 0x14200 bored softnet1 25076 454012 0 0 3 0x14200 bored softnet0 59583 343025 0 0 3 0x14200 bored systqmp 44370 423775 0 0 3 0x14200 bored systq 662 245798 0 0 3 0x14200 tmoslp softclockmp 12189 236844 0 0 3 0x40014200 tmoslp softclock 54120 72966 0 0 3 0x40014200 idle0 1 342311 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 35632 (syz-executor) thread 0xffff8000ffff4530 (434432) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8362a8b0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #6 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #7 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #8 vget+0x2bd sys/kern/vfs_subr.c:676 #9 ufs_ihashget+0x192 sys/ufs/ufs/ufs_ihash.c:98 #10 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #11 ufs_lookup+0x1631 sys/ufs/ufs/ufs_lookup.c:555 #12 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #13 unveil_find_cover+0x16d sys/kern/kern_unveil.c:277 #14 unveil_add_vnode+0xd1 sys/kern/kern_unveil.c:391 #15 unveil_add+0x448 sys/kern/kern_unveil.c:494 #16 sys_unveil+0x60c sys/kern/vfs_syscalls.c:1020 #17 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #17 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #18 Xsyscall+0x128 Process 23801 (syz-executor) thread 0xffff8000ffff4cc8 (30851) exclusive rrwlock inode r = 0 (0xfffffd8054c365e8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x192 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8079b133d8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10218 14122K 14131K 166960K 13182 0 pcb 17 32K 36K 166960K 31 0 rtable 216 6K 7K 166960K 22466 0 pf 29 16K 16K 166960K 1292 0 ifaddr 38 14K 19K 166960K 2552 0 ifgroup 46 2K 2K 166960K 2565 0 sysctl 4 1K 5K 166960K 36 0 counters 62 36K 36K 166960K 1318 0 ioctlops 0 0K 2K 166960K 1647 0 iov 0 0K 32K 166960K 3719 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1457 92K 92K 166960K 17589 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 805 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 1640 0 dirhash 24 4K 5K 166960K 1077 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 23 82K 161K 166960K 43665 0 sigio 0 0K 0K 166960K 1396 0 proc 61 91K 176K 166960K 22027 0 subproc 91 5K 12K 166960K 9581 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 4 0K 0K 166960K 9632 0 in_multi 90 6K 8K 166960K 8703 0 ether_multi 1 0K 0K 166960K 320 0 mrt 1 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 265 1182K 1182K 166960K 265 0 exec 0 0K 2K 166960K 16042 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 276 67K 131K 166960K 377596 0 UVM aobj 131 4K 8K 166960K 152 0 pinsyscall 46 92K 134K 166960K 62380 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 3085 0 NDP 14 0K 2K 166960K 1897 0 temp 71 6823K 6952K 166960K 269482 0 kqueue 17 24K 40K 166960K 7052 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 6991 0 6988 40 39 1 3 0 8 0 rtentry 112 7433 0 7332 17 13 4 4 0 8 0 unpcb 144 42769 0 42752 181 175 6 9 0 8 5 syncache 336 661 0 661 29 28 1 1 0 8 1 tcpqe 32 306 0 306 50 50 0 1 0 8 0 tcpcb 808 28013 0 27945 307 293 14 22 0 8 5 arp 120 1297 0 1281 1 0 1 1 0 8 0 ipq 40 220 0 217 2 1 1 1 0 8 0 ipqe 40 3149 0 3146 2 1 1 1 0 8 0 inpcb 336 63026 0 62954 374 361 13 26 0 8 3 ip6q 72 13 0 13 12 12 0 1 0 8 0 ip6af 40 26 0 26 12 12 0 1 0 8 0 nd6 136 2329 0 2306 10 9 1 2 0 8 0 kcovpl 48 737 0 730 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 30039 0 29620 224 194 30 34 0 8 0 art_table 32 30040 0 29620 13 8 5 5 0 8 0 art_node 16 7432 0 7340 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 8 2 1 1 1 0 8 0 semapl 112 1638 0 1628 1 0 1 1 0 8 0 shmpl 112 149 0 21 4 0 4 4 0 8 0 dirhash 1024 742 0 709 14 9 5 5 0 8 0 dino2pl 256 57318 0 53513 239 1 238 238 0 8 0 ffsino 272 57318 0 53513 254 0 254 254 0 8 0 nchpl 144 105939 0 102751 120 1 119 119 0 8 0 uvmvnodes 80 10812 0 0 221 0 221 221 0 8 0 vnodes 216 10812 0 0 601 0 601 601 0 8 0 namei 1024 452924 0 452922 60 59 1 3 0 8 0 percpumem 16 673 0 628 1 0 1 1 0 8 0 kstatmem 264 1276 0 1256 2 0 2 2 0 8 0 scxspl 216 425068 0 425067 112 108 4 8 1 8 3 plimitpl 152 15143 0 15117 2 0 2 2 0 8 0 sigapl 424 42786 0 42731 18 11 7 9 0 8 0 futexpl 64 518425 0 518422 27 26 1 1 0 8 0 knotepl 120 1910 0 0 25 0 25 25 0 8 0 kqueuepl 216 15603 0 15590 141 136 5 9 0 8 4 pipepl 320 7741 0 7713 76 69 7 13 0 8 4 fdescpl 496 42767 0 42731 23 17 6 7 0 8 0 filepl 152 310892 0 310641 216 200 16 22 0 8 3 lockfpl 104 11843 0 11838 7 5 2 2 0 8 1 lockfspl 48 3538 0 3535 1 0 1 1 0 8 0 sessionpl 144 948 0 932 1 0 1 1 0 8 0 pgrppl 48 2761 0 2737 1 0 1 1 0 8 0 ucredpl 104 60873 0 60855 1 0 1 1 0 8 0 zombiepl 144 42733 0 42731 2 1 1 1 0 8 0 processpl 1160 42786 0 42731 21 16 5 6 0 8 0 procpl 648 100666 0 100599 15 8 7 7 0 8 1 srpgc 96 31 0 31 14 14 0 1 0 8 0 sosppl 168 557 0 555 23 22 1 1 0 8 0 sockpl 664 113876 0 113784 439 419 20 30 0 8 6 mcl64k 65536 44 0 0 3 0 3 3 0 8 0 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 24 0 0 3 1 2 3 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 7 0 0 1 0 1 1 0 8 0 mcl2k 2048 822 0 0 33 13 20 32 0 8 0 mtagpl 96 26 0 0 1 0 1 1 0 8 0 mbufpl 256 7630 0 0 419 0 419 419 0 8 0 bufpl 280 72549 0 61737 773 0 773 773 0 8 0 anonpl 24 5649455 0 5641099 645 552 93 112 0 185 17 amapchunkpl 152 1256585 0 1255839 377 333 44 51 0 158 11 amappl16 200 146098 0 145948 908 887 21 41 0 8 8 amappl15 192 19 0 19 13 13 0 1 0 8 0 amappl14 184 1997 0 1986 1 0 1 1 0 8 0 amappl13 176 72 0 72 39 39 0 1 0 8 0 amappl12 168 53695 0 53659 8 5 3 3 0 8 0 amappl11 160 64 0 53 1 0 1 1 0 8 0 amappl10 152 16 0 14 1 0 1 1 0 8 0 amappl9 144 124 0 122 1 0 1 1 0 8 0 amappl8 136 23 0 21 1 0 1 1 0 8 0 amappl7 128 1664 0 1652 1 0 1 1 0 8 0 amappl6 120 6399 0 6397 1 0 1 1 0 8 0 amappl5 112 2927 0 2916 1 0 1 1 0 8 0 amappl4 104 3406 0 3391 1 0 1 1 0 8 0 amappl3 96 254273 0 254140 6 2 4 5 0 8 0 amappl2 88 13035 0 12964 4 1 3 3 0 8 0 amappl1 80 252680 0 252064 38 22 16 18 0 8 0 amappl 88 367917 0 367699 8 2 6 6 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 6 0 6 1 1 0 1 0 8 0 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 151 0 21 3 0 3 3 0 8 0 uaddrrnd 24 42767 0 42731 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 42767 0 42731 1 0 1 1 0 8 0 vmmpekpl 168 362826 0 362761 5 1 4 5 0 8 0 vmmpepl 168 2662359 0 2660147 521 403 118 132 0 357 8 vmsppl 440 42766 0 42731 12 7 5 7 0 8 0 rwobjpl 56 720364 0 708312 248 73 175 177 0 8 0 pdppl 4096 85541 0 85462 1589 1498 91 117 0 8 12 pvpl 32 47091 0 0 375 1 374 374 0 265 0 pmappl 248 42766 0 42731 16 13 3 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3555 0 2459 32 0 32 32 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff834eeff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x38 sys/dev/kcov.c:164 __mp_lock(ffffffff8362a6a8) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362a6a8) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff800037021d20,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff8362a6a8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362a6a8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff800037021ef0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037021ef0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x765ab85c2370, count: 5 ddb{0}> trace x86_ipi_db(ffffffff834eeff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x38 sys/dev/kcov.c:164 __mp_lock(ffffffff8362a6a8) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362a6a8) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff800037021d20,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff8362a6a8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362a6a8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff800037021ef0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037021ef0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x765ab85c2370, count: -10 ddb{0}> machine ddbcpu 1 Stopped at unveil_add_vnode+0xda: movq %rax,0x8(%r14,%r13,1) unveil_add_vnode(ffff8000ffff4530,fffffd80726a7368) at unveil_add_vnode+0xda sys/kern/kern_unveil.c:391 unveil_add(ffff8000ffff4530,ffff800037000f58,ffff800037001013) at unveil_add+0x448 sys/kern/kern_unveil.c:494 sys_unveil(ffff8000ffff4530,ffff800037001140,ffff800037001090) at sys_unveil+0x60c sys/kern/vfs_syscalls.c:1020 syscall(ffff800037001140) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037001140) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdf0a318f9c0, count: 10 ddb{1}> trace unveil_add_vnode(ffff8000ffff4530,fffffd80726a7368) at unveil_add_vnode+0xda sys/kern/kern_unveil.c:391 unveil_add(ffff8000ffff4530,ffff800037000f58,ffff800037001013) at unveil_add+0x448 sys/kern/kern_unveil.c:494 sys_unveil(ffff8000ffff4530,ffff800037001140,ffff800037001090) at sys_unveil+0x60c sys/kern/vfs_syscalls.c:1020 syscall(ffff800037001140) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037001140) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdf0a318f9c0, count: -5