uvm_fault(0xffffffff82d79e00, 0xffff800000e87008, 0, 2) -> e kernel: page fault trap, code=2 Stopped at unveil_add_vnode+0xb6: movq %rax,0x8(%r14,%r13,1) TID PID UID PRFLAGS PFLAGS CPU COMMAND *473234 37854 32767 0x8102010 0x4080000 1K syz-executor.2 412909 28158 0 0x1a000002 0 0 syz-fuzzer unveil_add_vnode(ffff80002a202cf0,fffffd805d61b2c0) at unveil_add_vnode+0xb6 sys/kern/kern_unveil.c:391 unveil_add(ffff80002a202cf0,ffff8000359b7b88,ffff8000359b7c43) at unveil_add+0x30b sys/kern/kern_unveil.c:494 sys_unveil(ffff80002a202cf0,ffff8000359b7d70,ffff8000359b7cc0) at sys_unveil+0x41b sys/kern/vfs_syscalls.c:1024 syscall(ffff8000359b7d70) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff8000359b7d70) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xce5971d0f60, 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(0xffffffff82d79e00, 0xffff800000e87008, 0, 2) -> e ddb{1}> trace unveil_add_vnode(ffff80002a202cf0,fffffd805d61b2c0) at unveil_add_vnode+0xb6 sys/kern/kern_unveil.c:391 unveil_add(ffff80002a202cf0,ffff8000359b7b88,ffff8000359b7c43) at unveil_add+0x30b sys/kern/kern_unveil.c:494 sys_unveil(ffff80002a202cf0,ffff8000359b7d70,ffff8000359b7cc0) at sys_unveil+0x41b sys/kern/vfs_syscalls.c:1024 syscall(ffff8000359b7d70) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff8000359b7d70) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xce5971d0f60, count: -5 ddb{1}> show registers rdi 0xffff80002db0a000 rsi 0x1611 __ALIGN_SIZE+0x611 rbp 0xffff8000359b7ab0 rbx 0xffff800034f85f68 rdx 0xffff80002db0a000 rcx 0x1610 __ALIGN_SIZE+0x610 rax 0xffffffffffffffff r8 0x40 r9 0xfffffd807f7d3340 r10 0x686b752e065f8f8b r11 0x2d9c2062b1d4a205 r12 0xfffffd805d61b2c0 r13 0 r14 0xffff800000e87000 r15 0 rip 0xffffffff820c92f6 unveil_add_vnode+0xb6 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000359b7a40 ss 0x10 unveil_add_vnode+0xb6: movq %rax,0x8(%r14,%r13,1) ddb{1}> show proc PROC (syz-executor.2) tid=473234 pid=37854 tcnt=3 stat=onproc flags process=8102010 proc=4080000 runpri=32, usrpri=80, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a202a60 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a202020,0xffff80002a203220 process=0xffff800034f85f68 user=0xffff8000359b2000, vmspace=0xfffffd806abeb380 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 37854 68467 84645 32767 4 0x8182010 syz-executor.2 *37854 473234 84645 32767 7 0xc182010 syz-executor.2 37854 233868 84645 32767 3 0xc102010 suspend syz-executor.2 95010 100403 59864 32767 3 0x8000090 nanoslp syz-executor.0 95010 57510 59864 32767 3 0xc000090 lockf syz-executor.0 95010 59038 59864 32767 3 0xc000090 fsleep syz-executor.0 40267 350076 64487 32767 3 0x8000090 nanoslp syz-executor.6 40267 282808 64487 32767 3 0xc000090 ttyin syz-executor.6 40267 53799 64487 32767 3 0xc000090 fsleep syz-executor.6 97304 249529 70258 32767 3 0x8000090 nanoslp syz-executor.3 97304 381196 70258 32767 3 0xc000090 netacc syz-executor.3 97304 102631 70258 32767 3 0xc000090 fsleep syz-executor.3 55211 313765 42551 32767 3 0x8000090 nanoslp syz-executor.5 55211 376874 42551 32767 3 0xc000090 sbwait syz-executor.5 55211 46046 42551 32767 3 0xc000090 fsleep syz-executor.5 55211 465498 42551 32767 3 0xc000090 fsleep syz-executor.5 55211 298426 42551 32767 3 0xc000090 fsleep syz-executor.5 57114 299934 58731 32767 3 0x8000090 nanoslp syz-executor.1 57114 333396 58731 32767 3 0xc000090 kqsel syz-executor.1 57114 61141 58731 32767 3 0xc000090 fsleep syz-executor.1 70258 111743 84065 32767 3 0x8000090 nanoslp syz-executor.3 84065 153506 28158 0 3 0x8000082 wait syz-executor.3 84645 250655 38499 32767 3 0x8000090 nanoslp syz-executor.2 38499 485025 28158 0 3 0x8000082 wait syz-executor.2 30565 176603 24488 32767 2 0x8000010 syz-executor.7 24488 3315 28158 0 3 0x8000082 wait syz-executor.7 42551 414972 78534 32767 3 0x8000090 nanoslp syz-executor.5 78534 29226 28158 0 3 0x8000082 wait syz-executor.5 59864 106298 77856 32767 3 0x8000090 nanoslp syz-executor.0 77856 172950 28158 0 3 0x8000082 wait syz-executor.0 58731 290164 68148 32767 3 0x8000090 nanoslp syz-executor.1 68148 491595 28158 0 3 0x8000082 wait syz-executor.1 64487 64177 1 32767 3 0x8000090 nanoslp syz-executor.6 26264 298337 0 0 3 0x14200 bored sosplice 28158 412909 38882 0 7 0x1a000002 syz-fuzzer 28158 283613 38882 0 3 0x1e000082 nanoslp syz-fuzzer 28158 3758 38882 0 3 0x1e000082 thrsleep syz-fuzzer 28158 209679 38882 0 3 0x1e000082 thrsleep syz-fuzzer 28158 482213 38882 0 3 0x1e000082 kqread syz-fuzzer 28158 445979 38882 0 3 0x1e000082 wait syz-fuzzer 28158 369216 38882 0 3 0x1e000082 thrsleep syz-fuzzer 28158 487670 38882 0 3 0x1e000082 thrsleep syz-fuzzer 28158 133201 38882 0 3 0x1e000082 wait syz-fuzzer 28158 254206 38882 0 3 0x1e000082 thrsleep syz-fuzzer 28158 477496 38882 0 3 0x1e000082 thrsleep syz-fuzzer 28158 391396 38882 0 3 0x1e000082 thrsleep syz-fuzzer 28158 465630 38882 0 3 0x1e000082 wait syz-fuzzer 28158 37190 38882 0 3 0x1e000082 wait syz-fuzzer 28158 280994 38882 0 3 0x1e000082 wait syz-fuzzer 28158 102020 38882 0 3 0x1e000082 wait syz-fuzzer 38882 35352 53161 0 3 0x810008a sigsusp ksh 53161 13928 53603 0 3 0x1800009a kqread sshd 7974 86628 1 0 3 0x18100083 ttyin getty 53603 445295 1 0 3 0x18000088 kqread sshd 32195 67819 19021 73 3 0x19100090 kqread syslogd 19021 372527 1 0 3 0x18100082 sbwait syslogd 57870 475361 1 0 3 0x18100080 kqread resolvd 49858 311241 36482 77 3 0x18100092 kqread dhcpleased 10831 326252 36482 77 3 0x18100092 kqread dhcpleased 36482 62107 1 0 3 0x18000080 kqread dhcpleased 71191 350319 0 0 3 0x14200 bored smr 57336 50990 0 0 3 0x14200 pgzero zerothread 12509 127008 0 0 3 0x14200 aiodoned aiodoned 13432 308817 0 0 3 0x14200 syncer update 99934 451029 0 0 3 0x14200 cleaner cleaner 51819 459198 0 0 3 0x14200 reaper reaper 58320 218721 0 0 3 0x14200 pgdaemon pagedaemon 85995 139787 0 0 3 0x14200 bored viomb 62097 177604 0 0 3 0x40014200 acpi0 acpi0 2183 132473 0 0 3 0x40014200 idle1 45610 519506 0 0 3 0x14200 bored softnet3 39135 29275 0 0 3 0x14200 bored softnet2 33145 436980 0 0 3 0x14200 bored softnet1 74999 503153 0 0 3 0x14200 bored softnet0 9930 107653 0 0 3 0x14200 bored systqmp 16730 130234 0 0 3 0x14200 bored systq 12015 208113 0 0 3 0x14200 tmoslp softclockmp 3683 297838 0 0 3 0x40014200 tmoslp softclock 69854 477449 0 0 3 0x40014200 idle0 1 111187 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 37854 (syz-executor.2) thread 0xffff80002a202cf0 (473234) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82e2f918) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x491 sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19a sys/kern/kern_synch.c:417 #4 rw_enter+0x29d sys/kern/kern_rwlock.c:285 #5 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #6 VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 #7 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #8 vget+0x1fd sys/kern/vfs_subr.c:676 #9 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #10 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201 #11 ufs_lookup+0x10b9 sys/ufs/ufs/ufs_lookup.c:555 #12 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #13 unveil_find_cover+0x132 sys/kern/kern_unveil.c:277 #14 unveil_add_vnode+0xb6 sys/kern/kern_unveil.c:391 #15 unveil_add+0x30b sys/kern/kern_unveil.c:494 #16 sys_unveil+0x41b sys/kern/vfs_syscalls.c:1024 #17 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #17 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #18 Xsyscall+0x128 Process 30565 (syz-executor.7) thread 0xffff80002a2027d0 (176603) exclusive rrwlock inode r = 0 (0xfffffd806e416c50) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vget+0x1fd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x1373 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6f8 sys/kern/vfs_lookup.c:566 #11 namei+0x56a sys/kern/vfs_lookup.c:250 #12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1856 #13 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #13 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e412818) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vget+0x1fd sys/kern/vfs_subr.c:676 #6 cache_lookup+0x2b3 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1b2 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x6f8 sys/kern/vfs_lookup.c:566 #10 namei+0x56a sys/kern/vfs_lookup.c:250 #11 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1856 #12 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #12 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10181 6406K 6419K 166960K 11343 0 pcb 17 12K 12K 166960K 17 0 rtable 218 6K 7K 166960K 1370 0 pf 27 8K 8K 166960K 83 0 ifaddr 40 15K 16K 166960K 158 0 ifgroup 46 2K 2K 166960K 158 0 sysctl 4 1K 1K 166960K 4 0 counters 62 36K 36K 166960K 118 0 ioctlops 0 0K 2K 166960K 93 0 iov 1 0K 20K 166960K 207 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1376 87K 87K 166960K 2030 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 67 0 VM map 2 1K 1K 166960K 2 0 sem 11 1K 1K 166960K 14 0 dirhash 12 2K 3K 166960K 171 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 21 77K 125K 166960K 2915 0 sigio 0 0K 0K 166960K 55 0 proc 56 78K 115K 166960K 1477 0 subproc 91 5K 7K 166960K 559 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 673 0 in_multi 88 6K 7K 166960K 511 0 ether_multi 1 0K 0K 166960K 12 0 mrt 2 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 1013 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 316 69K 123K 166960K 26486 0 UVM aobj 126 4K 5K 166960K 138 0 pinsyscall 41 82K 110K 166960K 4740 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 215 0 NDP 10 0K 2K 166960K 108 0 temp 72 6807K 6887K 166960K 13336 0 kqueue 13 20K 29K 166960K 469 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 120 454 0 447 1 0 1 1 0 8 0 rtentry 112 455 0 353 4 0 4 4 0 8 0 unpcb 144 2502 0 2484 13 12 1 2 0 8 0 syncache 336 33 0 33 15 14 1 1 0 8 1 sackhl 24 2 0 2 2 2 0 1 0 8 0 tcpqe 32 100 0 100 4 4 0 1 0 8 0 tcpcb 808 1397 0 1388 28 26 2 2 0 8 1 arp 120 75 0 58 1 0 1 1 0 8 0 ipq 40 20 0 19 3 2 1 1 0 8 0 ipqe 40 198 0 197 3 2 1 1 0 8 0 inpcb 384 3189 0 3171 27 24 3 4 0 8 1 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 136 149 0 126 8 6 2 2 0 8 0 kcovpl 48 43 0 36 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1877 0 1445 44 14 30 32 0 8 0 art_table 32 1878 0 1445 5 0 5 5 0 8 0 art_node 16 454 0 361 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 8 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 10 0 1 1 0 1 1 0 8 0 shmpl 112 135 0 12 4 0 4 4 0 8 0 dirhash 1024 123 0 106 3 0 3 3 0 8 0 dino2pl 256 5419 0 3901 96 0 96 96 0 8 0 ffsino 272 5419 0 3901 103 0 103 103 0 8 0 nchpl 144 9471 0 7750 66 1 65 66 0 8 0 uvmvnodes 80 5987 0 0 123 0 123 123 0 8 0 vnodes 216 5987 0 0 333 0 333 333 0 8 0 namei 1024 35415 0 35413 19 18 1 2 0 8 0 percpumem 16 73 0 28 1 0 1 1 0 8 0 kstatmem 264 76 0 56 2 0 2 2 0 8 0 scxspl 216 96753 0 96753 42 41 1 8 1 8 1 plimitpl 152 767 0 747 8 7 1 2 0 8 0 sigapl 424 3134 0 3083 7 0 7 7 0 8 0 futexpl 64 43501 0 43494 25 24 1 1 0 8 0 knotepl 120 848 0 0 13 2 11 11 0 8 0 kqueuepl 216 963 0 953 2 1 1 2 0 8 0 pipepl 320 626 0 598 5 2 3 4 0 8 0 fdescpl 496 3115 0 3083 7 2 5 6 0 8 0 filepl 152 20237 0 19991 14 3 11 12 0 8 0 lockfpl 104 860 0 856 1 0 1 1 0 8 0 lockfspl 48 315 0 312 1 0 1 1 0 8 0 sessionpl 144 50 0 35 1 0 1 1 0 8 0 pgrppl 48 109 0 94 1 0 1 1 0 8 0 ucredpl 104 4461 0 4444 1 0 1 1 0 8 0 zombiepl 144 3083 0 3083 1 0 1 1 0 8 1 processpl 1144 3134 0 3083 6 2 4 5 0 8 0 procpl 656 6010 0 5930 9 1 8 8 0 8 0 sosppl 168 38 0 38 16 15 1 1 0 8 1 sockpl 664 6233 0 6192 52 48 4 5 0 8 0 mcl64k 65536 19 0 0 3 1 2 3 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 6 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 487 0 0 37 14 23 37 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 1393 0 0 71 0 71 71 0 8 0 bufpl 280 14884 0 5540 668 0 668 668 0 8 0 anonpl 24 742019 0 731617 279 208 71 130 0 186 0 amapchunkpl 152 100617 0 99811 153 117 36 63 0 158 0 amappl16 200 15222 0 14852 144 124 20 35 0 8 0 amappl15 192 15 0 15 2 2 0 1 0 8 0 amappl14 184 256 0 243 2 1 1 2 0 8 0 amappl13 176 28 0 28 4 4 0 1 0 8 0 amappl12 168 4170 0 4134 2 0 2 2 0 8 0 amappl11 160 69 0 59 1 0 1 1 0 8 0 amappl10 152 106 0 93 1 0 1 1 0 8 0 amappl9 144 183 0 183 2 2 0 1 0 8 0 amappl8 136 339 0 302 2 0 2 2 0 8 0 amappl7 128 61 0 45 1 0 1 1 0 8 0 amappl6 120 697 0 683 2 1 1 2 0 8 0 amappl5 112 279 0 267 1 0 1 1 0 8 0 amappl4 104 774 0 737 2 0 2 2 0 8 0 amappl3 96 16561 0 16456 3 0 3 3 0 8 0 amappl2 88 3584 0 3508 5 3 2 5 0 8 0 amappl1 80 19638 0 19142 22 10 12 22 0 8 0 amappl 88 25353 0 25124 6 0 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 72 137 0 12 4 1 3 3 0 8 0 uaddrrnd 24 3115 0 3083 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3115 0 3083 1 0 1 1 0 8 0 vmmpekpl 168 25193 0 25131 4 0 4 4 0 8 0 vmmpepl 168 211705 0 209411 259 147 112 117 0 357 9 vmsppl 440 3114 0 3083 6 2 4 5 0 8 0 rwobjpl 56 62514 0 55060 132 26 106 106 0 8 0 pdppl 4096 6237 0 6166 309 232 77 95 0 8 6 pvpl 32 47996 0 0 388 0 388 388 0 265 0 pmappl 248 3114 0 3083 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 736 0 321 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82cd8ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82e2f710) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e2f710) at __mp_lock+0x129 sys/kern/kern_lock.c:147 intr_handler(ffff80002a184200,ffff80000067b200) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f __mp_lock(ffffffff82e2f710) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e2f710) at __mp_lock+0x12e sys/kern/kern_lock.c:147 vn_closefile(fffffd806b276690,ffff8000ffffd9b0) at vn_closefile+0x38 sys/kern/vfs_vnops.c:602 fdrop(fffffd806b276690,ffff8000ffffd9b0) at fdrop+0xd5 sys/kern/kern_descrip.c:1274 closef(fffffd806b276690,ffff8000ffffd9b0) at closef+0x120 sys/kern/kern_descrip.c:1258 syscall(ffff80002a1844e0) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002a1844e0) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e132fccbb30, count: 3 ddb{0}> trace x86_ipi_db(ffffffff82cd8ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82e2f710) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e2f710) at __mp_lock+0x129 sys/kern/kern_lock.c:147 intr_handler(ffff80002a184200,ffff80000067b200) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f __mp_lock(ffffffff82e2f710) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e2f710) at __mp_lock+0x12e sys/kern/kern_lock.c:147 vn_closefile(fffffd806b276690,ffff8000ffffd9b0) at vn_closefile+0x38 sys/kern/vfs_vnops.c:602 fdrop(fffffd806b276690,ffff8000ffffd9b0) at fdrop+0xd5 sys/kern/kern_descrip.c:1274 closef(fffffd806b276690,ffff8000ffffd9b0) at closef+0x120 sys/kern/kern_descrip.c:1258 syscall(ffff80002a1844e0) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002a1844e0) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e132fccbb30, count: -12 ddb{0}> machine ddbcpu 1 Stopped at unveil_add_vnode+0xb6: movq %rax,0x8(%r14,%r13,1) unveil_add_vnode(ffff80002a202cf0,fffffd805d61b2c0) at unveil_add_vnode+0xb6 sys/kern/kern_unveil.c:391 unveil_add(ffff80002a202cf0,ffff8000359b7b88,ffff8000359b7c43) at unveil_add+0x30b sys/kern/kern_unveil.c:494 sys_unveil(ffff80002a202cf0,ffff8000359b7d70,ffff8000359b7cc0) at sys_unveil+0x41b sys/kern/vfs_syscalls.c:1024 syscall(ffff8000359b7d70) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff8000359b7d70) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xce5971d0f60, count: 10 ddb{1}> trace unveil_add_vnode(ffff80002a202cf0,fffffd805d61b2c0) at unveil_add_vnode+0xb6 sys/kern/kern_unveil.c:391 unveil_add(ffff80002a202cf0,ffff8000359b7b88,ffff8000359b7c43) at unveil_add+0x30b sys/kern/kern_unveil.c:494 sys_unveil(ffff80002a202cf0,ffff8000359b7d70,ffff8000359b7cc0) at sys_unveil+0x41b sys/kern/vfs_syscalls.c:1024 syscall(ffff8000359b7d70) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff8000359b7d70) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xce5971d0f60, count: -5