uvm_fault(0xffffffff8353fec0, 0xffff800010fc6008, 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 *289648 5749 32767 0x502010 0x4080000 1K syz-executor 517169 4697 0 0x2 0 0 syz-executor unveil_add_vnode(ffff8000ffff62a0,fffffd80659b5dd8) at unveil_add_vnode+0xda sys/kern/kern_unveil.c:391 unveil_add(ffff8000ffff62a0,ffff80002a0d3e88,ffff80002a0d3f43) at unveil_add+0x448 sys/kern/kern_unveil.c:494 sys_unveil(ffff8000ffff62a0,ffff80002a0d4070,ffff80002a0d3fc0) at sys_unveil+0x60c sys/kern/vfs_syscalls.c:1020 syscall(ffff80002a0d4070) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0d4070) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x96d817535b0, 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(0xffffffff8353fec0, 0xffff800010fc6008, 0, 2) -> e ddb{1}> trace unveil_add_vnode(ffff8000ffff62a0,fffffd80659b5dd8) at unveil_add_vnode+0xda sys/kern/kern_unveil.c:391 unveil_add(ffff8000ffff62a0,ffff80002a0d3e88,ffff80002a0d3f43) at unveil_add+0x448 sys/kern/kern_unveil.c:494 sys_unveil(ffff8000ffff62a0,ffff80002a0d4070,ffff80002a0d3fc0) at sys_unveil+0x60c sys/kern/vfs_syscalls.c:1020 syscall(ffff80002a0d4070) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0d4070) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x96d817535b0, count: -5 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a0d3db0 rbx 0xffff80002d5771f0 rdx 0 rcx 0xffff8000ffff62a0 rax 0xffffffffffffffff r8 0x40 r9 0xfffffd807f7d3068 r10 0x9b6184f0840c74ae r11 0x992f4ad15f9e67cf r12 0xfffffd80659b5dd8 r13 0 r14 0xffff800010fc6000 r15 0 rip 0xffffffff8200760a unveil_add_vnode+0xda cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a0d3d40 ss 0x10 unveil_add_vnode+0xda: movq %rax,0x8(%r14,%r13,1) ddb{1}> show proc PROC (syz-executor) tid=289648 pid=5749 tcnt=4 stat=onproc flags process=502010 proc=4080000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000ffff6018 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff6a38,0xffff8000ffff6028 process=0xffff80002d5771f0 user=0xffff80002a0cf000, vmspace=0xfffffd8051dbb540 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 14094 470534 18806 32767 2 0x10 syz-executor 14094 115315 18806 32767 3 0x4000090 fsleep syz-executor 5749 115767 4354 32767 4 0x582010 syz-executor * 5749 289648 4354 32767 7 0x4582010 syz-executor 5749 178970 4354 32767 3 0x4502010 suspend syz-executor 5749 228942 4354 32767 4 0x4582010 syz-executor 4697 517169 7068 0 7 0x2 syz-executor 14597 490257 67727 32767 3 0x90 nanoslp syz-executor 14597 473866 67727 32767 3 0x4000090 ttyin syz-executor 14597 54779 67727 32767 3 0x4000090 fsleep syz-executor 33885 169363 19319 32767 3 0x90 nanoslp syz-executor 33885 117983 19319 32767 3 0x4000090 kqsel syz-executor 19319 331573 69260 32767 3 0x90 nanoslp syz-executor 69260 261567 7068 0 3 0x82 wait syz-executor 18806 157650 84361 32767 3 0x90 nanoslp syz-executor 84361 373980 7068 0 3 0x82 wait syz-executor 77088 329772 28666 32767 3 0x90 nanoslp syz-executor 28666 130537 7068 0 3 0x82 wait syz-executor 4354 450209 70219 32767 3 0x90 nanoslp syz-executor 70219 449346 7068 0 3 0x82 wait syz-executor 37177 319616 62235 32767 3 0x10 biowait syz-executor 62235 520965 7068 0 3 0x82 wait syz-executor 58660 438546 36103 32767 3 0x90 wait syz-executor 36103 442692 7068 0 3 0x82 wait syz-executor 67727 79823 29326 32767 3 0x90 nanoslp syz-executor 29326 232044 7068 0 3 0x82 wait syz-executor 9378 97632 72537 0 3 0x100082 sbwait arp 72537 430683 8250 0 3 0x10008a sigsusp sh 8250 375226 1 0 3 0x80 wait syz-executor 39506 117439 44303 0 3 0x100082 sbwait arp 44303 169878 7535 0 3 0x10008a sigsusp sh 7535 515912 1 0 3 0x80 wait syz-executor 30966 139695 0 0 3 0x14200 bored sosplice 69940 42444 25332 0 3 0x100082 sbwait arp 25332 315364 79091 0 3 0x10008a sigsusp sh 79091 506544 1 0 3 0x80 wait syz-executor 7068 237080 59210 0 3 0x82 kqread syz-executor 59210 388230 13190 0 3 0x10008a sigsusp ksh 13190 141081 20289 0 3 0x98 kqread sshd-session 20289 304777 87103 0 3 0x92 kqread sshd-session 75045 384354 1 0 3 0x100083 ttyin getty 87103 10205 1 0 3 0x88 kqread sshd 5080 113323 67850 73 3 0x1100090 kqread syslogd 67850 509299 1 0 3 0x100082 sbwait syslogd 8294 237888 1 0 3 0x100080 kqread resolvd 98319 456717 76155 77 3 0x100092 kqread dhcpleased 64496 13737 76155 77 3 0x100092 kqread dhcpleased 76155 192370 1 0 3 0x80 kqread dhcpleased 45460 229963 0 0 3 0x14200 bored smr 51746 282465 0 0 3 0x14200 pgzero zerothread 72479 256819 0 0 3 0x14200 aiodoned aiodoned 58083 283373 0 0 3 0x14200 syncer update 9164 453049 0 0 3 0x14200 cleaner cleaner 31323 171694 0 0 3 0x14200 reaper reaper 45201 202687 0 0 3 0x14200 pgdaemon pagedaemon 88653 439556 0 0 3 0x14200 bored viomb 93439 520695 0 0 3 0x40014200 acpi0 acpi0 2068 138158 0 0 3 0x40014200 idle1 60271 301318 0 0 3 0x14200 bored softnet3 78243 391171 0 0 3 0x14200 bored softnet2 39657 309527 0 0 3 0x14200 bored softnet1 20368 490647 0 0 3 0x14200 bored softnet0 57514 334600 0 0 3 0x14200 bored systqmp 88604 65635 0 0 3 0x14200 bored systq 45104 158821 0 0 3 0x14200 tmoslp softclockmp 65173 119045 0 0 3 0x40014200 tmoslp softclock 692 158322 0 0 3 0x40014200 idle0 1 86474 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 5749 (syz-executor) thread 0xffff8000ffff62a0 (289648) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835a4fd0) #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 4697 (syz-executor) thread 0xffff8000ffff7458 (517169) exclusive rwlock uobjlk r = 0 (0xfffffd806ccfdc88) #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 uvm_fault_lower_lookup+0x54 sys/uvm/uvm_fault.c:1126 #3 uvm_fault_lower+0x74 sys/uvm/uvm_fault.c:1227 #4 uvm_fault+0x301 sys/uvm/uvm_fault.c:637 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806adf3ec8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 Process 37177 (syz-executor) thread 0xffff8000353c0cd8 (319616) exclusive rrwlock inode r = 0 (0xfffffd805f33f918) #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 (0xfffffd805f33f5e8) #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 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x218 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10218 14122K 14131K 166960K 12786 0 pcb 17 24K 26K 166960K 27 0 rtable 222 6K 7K 166960K 17684 0 pf 29 16K 16K 166960K 1032 0 ifaddr 38 10K 13K 166960K 2022 0 ifgroup 46 2K 2K 166960K 2041 0 sysctl 4 1K 5K 166960K 29 0 counters 62 36K 36K 166960K 1054 0 ioctlops 0 0K 2K 166960K 1157 0 iov 0 0K 66K 166960K 11154 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1496 94K 94K 166960K 13558 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 471 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 875 0 dirhash 27 5K 6K 166960K 762 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 32 118K 193K 166960K 29438 0 sigio 0 0K 0K 166960K 808 0 proc 58 79K 176K 166960K 16809 0 subproc 130 8K 14K 166960K 7449 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 6328 0 in_multi 88 6K 7K 166960K 6489 0 ether_multi 1 0K 0K 166960K 189 0 mrt 1 0K 0K 166960K 15 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 1K 166960K 11933 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 301 92K 157K 166960K 251092 0 UVM aobj 131 4K 8K 166960K 151 0 pinsyscall 56 112K 150K 166960K 45059 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 1K 166960K 2081 0 NDP 10 0K 2K 166960K 1499 0 temp 85 6824K 6952K 166960K 209598 0 kqueue 15 24K 36K 166960K 4768 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 5131 0 5125 36 35 1 5 0 8 0 rtentry 112 5789 0 5685 13 9 4 4 0 8 0 unpcb 144 28548 0 28531 127 123 4 11 0 8 3 syncache 336 423 0 423 27 26 1 1 0 8 1 tcpqe 32 157 0 157 35 34 1 1 0 8 1 tcpcb 808 17504 0 17481 211 205 6 15 0 8 2 arp 120 977 0 960 1 0 1 1 0 8 0 ipq 40 168 0 163 3 2 1 1 0 8 0 ipqe 40 2729 0 2723 3 2 1 1 0 8 0 inpcb 336 40246 0 40218 259 253 6 19 0 8 2 ip6q 72 5 0 5 5 5 0 1 0 8 0 ip6af 40 10 0 10 5 5 0 1 0 8 0 nd6 136 1797 0 1772 9 7 2 2 0 8 0 kcovpl 48 573 0 563 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 23525 0 23098 185 154 31 32 0 8 0 art_table 32 23526 0 23098 12 8 4 5 0 8 0 art_node 16 5788 0 5693 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 13 3 2 1 1 0 8 0 semapl 112 873 0 863 1 0 1 1 0 8 0 shmpl 112 148 0 20 4 0 4 4 0 8 0 dirhash 1024 524 0 493 13 8 5 5 0 8 1 dino2pl 256 37935 0 34717 202 0 202 202 0 8 0 ffsino 272 37935 0 34717 216 1 215 215 0 8 0 nchpl 144 68881 0 65946 109 0 109 109 0 8 0 uvmvnodes 80 10064 0 0 206 0 206 206 0 8 0 vnodes 216 10064 0 0 560 0 560 560 0 8 0 namei 1024 303367 0 303365 44 43 1 2 0 8 0 percpumem 16 541 0 496 1 0 1 1 0 8 0 kstatmem 264 1012 0 992 2 0 2 2 0 8 0 scxspl 216 322831 0 322830 79 75 4 8 1 8 3 plimitpl 152 9920 0 9893 2 0 2 2 0 8 0 sigapl 424 28951 0 28888 13 4 9 10 0 8 0 futexpl 64 333915 0 333913 25 24 1 1 0 8 0 knotepl 120 1771 0 0 26 2 24 24 0 8 0 kqueuepl 216 10398 0 10387 95 94 1 6 0 8 0 pipepl 320 6274 0 6238 83 76 7 14 0 8 0 fdescpl 496 28932 0 28888 18 10 8 8 0 8 0 filepl 152 208131 0 207842 151 134 17 30 0 8 0 lockfpl 104 7188 0 7186 4 3 1 2 0 8 0 lockfspl 48 2056 0 2054 1 0 1 1 0 8 0 sessionpl 144 881 0 863 1 0 1 1 0 8 0 pgrppl 48 2005 0 1979 1 0 1 1 0 8 0 ucredpl 104 41235 0 41217 1 0 1 1 0 8 0 zombiepl 144 28890 0 28888 1 0 1 1 0 8 0 processpl 1160 28951 0 28888 8 2 6 6 0 8 0 procpl 648 66124 0 66054 12 4 8 8 0 8 0 srpgc 96 22 0 22 9 9 0 1 0 8 0 sosppl 168 343 0 341 23 22 1 1 0 8 0 sockpl 664 74914 0 74864 401 386 15 32 0 8 8 mcl64k 65536 34 0 0 4 1 3 3 0 8 0 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 686 0 0 28 6 22 28 0 8 0 mtagpl 96 8 0 0 1 0 1 1 0 8 0 mbufpl 256 14395 0 0 831 0 831 831 0 8 0 bufpl 280 48489 0 38424 720 0 720 720 0 8 0 anonpl 24 3628772 0 3617600 493 397 96 119 0 185 2 amapchunkpl 152 810673 0 809866 302 261 41 52 0 158 2 amappl16 200 80712 0 80427 385 356 29 41 0 8 7 amappl15 192 13 0 13 6 6 0 1 0 8 0 amappl14 184 1840 0 1827 1 0 1 1 0 8 0 amappl13 176 49 0 49 26 25 1 1 0 8 1 amappl12 168 37777 0 37731 5 2 3 3 0 8 0 amappl11 160 48 0 38 1 0 1 1 0 8 0 amappl10 152 12 0 11 2 1 1 1 0 8 0 amappl9 144 134 0 133 2 1 1 1 0 8 0 amappl8 136 23 0 21 1 0 1 1 0 8 0 amappl7 128 1481 0 1467 1 0 1 1 0 8 0 amappl6 120 5073 0 5068 1 0 1 1 0 8 0 amappl5 112 2471 0 2461 1 0 1 1 0 8 0 amappl4 104 3246 0 3227 1 0 1 1 0 8 0 amappl3 96 166621 0 166476 5 0 5 5 0 8 0 amappl2 88 11806 0 11733 11 9 2 3 0 8 0 amappl1 80 218229 0 217604 25 7 18 18 0 8 0 amappl 88 243126 0 242890 7 0 7 7 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 72 150 0 20 3 0 3 3 0 8 0 uaddrrnd 24 28932 0 28888 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 28932 0 28888 1 0 1 1 0 8 0 vmmpekpl 168 271649 0 271570 6 1 5 5 0 8 0 vmmpepl 168 1881910 0 1879388 382 243 139 139 0 357 12 vmsppl 440 28931 0 28888 16 9 7 7 0 8 0 rwobjpl 56 514561 0 503056 201 33 168 170 0 8 0 pdppl 4096 57871 0 57776 1506 1403 103 131 0 8 8 pvpl 32 48198 0 0 384 0 384 384 0 265 0 pmappl 248 28931 0 28888 7 3 4 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3536 0 2102 42 0 42 42 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8346fff0) 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(ffffffff835a4dc8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835a4dc8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff8000351dce60,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff835a4dc8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835a4dc8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff8000351dd030) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000351dd030) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x709e4d6629e0, count: 6 ddb{0}> trace x86_ipi_db(ffffffff8346fff0) 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(ffffffff835a4dc8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835a4dc8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff8000351dce60,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff835a4dc8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835a4dc8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff8000351dd030) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000351dd030) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x709e4d6629e0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at unveil_add_vnode+0xda: movq %rax,0x8(%r14,%r13,1) unveil_add_vnode(ffff8000ffff62a0,fffffd80659b5dd8) at unveil_add_vnode+0xda sys/kern/kern_unveil.c:391 unveil_add(ffff8000ffff62a0,ffff80002a0d3e88,ffff80002a0d3f43) at unveil_add+0x448 sys/kern/kern_unveil.c:494 sys_unveil(ffff8000ffff62a0,ffff80002a0d4070,ffff80002a0d3fc0) at sys_unveil+0x60c sys/kern/vfs_syscalls.c:1020 syscall(ffff80002a0d4070) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0d4070) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x96d817535b0, count: 10 ddb{1}> trace unveil_add_vnode(ffff8000ffff62a0,fffffd80659b5dd8) at unveil_add_vnode+0xda sys/kern/kern_unveil.c:391 unveil_add(ffff8000ffff62a0,ffff80002a0d3e88,ffff80002a0d3f43) at unveil_add+0x448 sys/kern/kern_unveil.c:494 sys_unveil(ffff8000ffff62a0,ffff80002a0d4070,ffff80002a0d3fc0) at sys_unveil+0x60c sys/kern/vfs_syscalls.c:1020 syscall(ffff80002a0d4070) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0d4070) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x96d817535b0, count: -5