witness: lock_object uninitialized: 0xffff8000014b3028 Starting stack trace... witness_checkorder(ffff8000014b3028,9,0) at witness_checkorder+0x1af witness_debugger sys/kern/subr_witness.c:2522 [inline] witness_checkorder(ffff8000014b3028,9,0) at witness_checkorder+0x1af sys/kern/subr_witness.c:779 rw_enter_write(ffff8000014b3018) at rw_enter_write+0x7a sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff8000014b3000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000ffff3b00) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000ffff4a48,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000ffff4a48,ffff80002a133ff0,ffff80002a133f40) at sys_exit+0x1a syscall(ffff80002a133ff0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002a133ff0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7abd0ef095e0, count: 249 End of stack trace. Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff8000014b3028,9,0) at witness_checkorder+0x1b4 rw_enter_write(ffff8000014b3018) at rw_enter_write+0x7a sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff8000014b3000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000ffff3b00) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000ffff4a48,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000ffff4a48,ffff80002a133ff0,ffff80002a133f40) at sys_exit+0x1a syscall(ffff80002a133ff0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002a133ff0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7abd0ef095e0, count: -9 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a133cc0 rbx 0 rdx 0 rcx 0xffff8000ffff4a48 rax 0xffff800029b7bff0 r8 0xffff80002a133c60 r9 0x8080808080808080 r10 0x8a3888fd7a9183c r11 0x3520c03fef0022b6 r12 0 r13 0x1 r14 0xffff8000014b3028 r15 0x3 rip 0xffffffff81610e15 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a133cb0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=82021 pid=26928 tcnt=0 stat=onproc flags process=1001008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000ffff4a48 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000ffff4028,0xffff8000ffff5478 process=0xffff8000ffff3b00 user=0xffff80002a12f000, vmspace=0xfffffd806bea1020 estcpu=36, cpticks=19, pctcpu=0.0, user=0, sys=8, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 9144 276493 54924 0 2 0 syz-executor 9144 198778 54924 0 3 0x4000080 fsleep syz-executor 9144 215380 54924 0 3 0x4000080 fsleep syz-executor 9144 166259 54924 0 3 0x4000080 fsleep syz-executor 70937 19843 35722 0 2 0 syz-executor 70937 224866 35722 0 3 0x4000080 fsleep syz-executor 61076 186131 63706 0 3 0 vmmaplk syz-executor 61076 38581 63706 0 3 0x4000000 smrbar syz-executor 61076 4875 63706 0 2 0x4000000 syz-executor 22519 88204 43308 0 7 0 syz-executor 22519 78095 43308 0 2 0x4000000 syz-executor 22519 147492 43308 0 3 0x4000080 fsleep syz-executor 75223 70684 43033 0 3 0x3000 suspend syz-executor 75223 38857 43033 0 2 0x4081000 syz-executor 43033 404240 37660 0 3 0x82 nanoslp syz-executor 811 270061 37660 0 3 0x2 biowait syz-executor 43884 11985 1 0 3 0x100083 ttyin getty 54924 439510 37660 0 3 0x82 nanoslp syz-executor 18895 103636 0 0 3 0x14200 bored sosplice 26581 442447 37660 0 3 0x82 wait syz-executor 43308 80656 37660 0 3 0x82 nanoslp syz-executor 63706 203551 37660 0 3 0x82 nanoslp syz-executor 35722 520902 37660 0 3 0x82 nanoslp syz-executor 4276 296745 37660 0 3 0x82 nanoslp syz-executor 37660 461935 64913 0 3 0x82 kqread syz-executor 64913 94004 10369 0 3 0x10008a sigsusp ksh 10369 359270 42628 0 3 0x98 kqread sshd-session 42628 186188 49607 0 3 0x92 kqread sshd-session 49607 108573 1 0 3 0x88 kqread sshd 14835 78765 2604 74 3 0x1100092 bpf pflogd 2604 220424 1 0 3 0x80 sbwait pflogd 87700 226430 92569 73 3 0x1100090 kqread syslogd 92569 6611 1 0 3 0x100082 sbwait syslogd 39295 313047 1 0 3 0x100080 kqread resolvd 10524 465463 4767 77 3 0x100092 kqread dhcpleased 1763 49184 4767 77 3 0x100092 kqread dhcpleased 4767 439700 1 0 3 0x80 kqread dhcpleased 11902 153358 0 0 3 0x14200 bored smr 28688 21290 0 0 2 0x14200 zerothread 10494 34924 0 0 3 0x14200 aiodoned aiodoned 3767 341932 0 0 3 0x14200 syncer update 96601 12917 0 0 3 0x14200 cleaner cleaner 61916 329002 0 0 3 0x14200 reaper reaper 79776 205901 0 0 3 0x14200 pgdaemon pagedaemon 29551 259371 0 0 3 0x14200 bored viomb 61079 87348 0 0 3 0x40014200 acpi0 acpi0 42214 94201 0 0 3 0x40014200 idle1 64865 288415 0 0 3 0x14200 bored softnet3 70710 61741 0 0 3 0x14200 bored softnet2 914 327091 0 0 3 0x14200 bored softnet1 3112 108427 0 0 3 0x14200 bored softnet0 38303 220731 0 0 3 0x14200 bored systqmp 39618 269211 0 0 3 0x14200 bored systq 90208 33641 0 0 3 0x14200 tmoslp softclockmp 89475 78693 0 0 3 0x40014200 tmoslp softclock 96407 127018 0 0 3 0x40014200 idle0 1 49976 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 61076 (syz-executor) thread 0xffff8000ffff6f50 (38581) exclusive rwlock clonelk r = 0 (0xffffffff83485e90) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 if_clone_destroy+0x67 #2 tun_dev_close+0x1dc sys/net/if_tun.c:529 #3 spec_close+0x412 #4 VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 #5 vn_close+0xa3 sys/kern/vfs_vnops.c:292 #6 sys_ktrace+0x14e sys/kern/kern_ktrace.c:552 #7 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #7 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 Process 61076 (syz-executor) thread 0xffff8000ffff5978 (4875) exclusive rwlock vmmaplk r = 0 (0xfffffd806c759490) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5255 #2 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1813 #3 uvm_fault_check+0x831 uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] #3 uvm_fault_check+0x831 sys/uvm/uvm_fault.c:712 #4 uvm_fault+0xf5 sys/uvm/uvm_fault.c:600 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 Process 75223 (syz-executor) thread 0xffff8000ffff51e0 (38857) exclusive rwlock vmmaplk r = 0 (0xfffffd806bea12d8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5255 #2 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1813 #3 uvm_fault_check+0x831 uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] #3 uvm_fault_check+0x831 sys/uvm/uvm_fault.c:712 #4 uvm_fault+0xf5 sys/uvm/uvm_fault.c:600 #5 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 #6 kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 #7 alltraps_kern_meltdown+0x7b #8 _copyin+0x57 #9 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #9 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 Process 811 (syz-executor) thread 0xffff80002a0eaf68 (270061) exclusive rrwlock inode r = 0 (0xfffffd8069ce22c8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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:678 #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:178 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8069ce2708) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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:178 [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 10251 11302K 11897K 166960K 15676 0 pcb 18 18K 23K 166960K 1120 0 rtable 214 15K 16K 166960K 1016 0 pf 42 18K 19K 166960K 136 0 ifaddr 45 7K 8K 166960K 122 0 ifgroup 71 2K 3K 166960K 187 0 sysctl 4 1K 2K 166960K 7 0 counters 72 37K 37K 166960K 146 0 ioctlops 0 0K 4K 166960K 1879 0 iov 0 0K 20K 166960K 146 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1444 91K 91K 166960K 3962 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 16K 20K 166960K 42 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 329 0 dirhash 12 2K 2K 166960K 84 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 16 57K 89K 166960K 2841 0 sigio 0 0K 0K 166960K 37 0 proc 77 115K 128K 166960K 1054 0 subproc 104 6K 6K 166960K 183 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 479 0 in_multi 84 6K 6K 166960K 278 0 ether_multi 1 0K 0K 166960K 38 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 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 737 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 258 74K 88K 166960K 28706 0 UVM aobj 152 8K 8K 166960K 156 0 pinsyscall 42 84K 105K 166960K 4163 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 177 0 NDP 16 0K 1K 166960K 84 0 temp 79 6828K 7084K 166960K 147382 0 kqueue 14 22K 30K 166960K 460 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 120 343 0 340 4 3 1 3 0 8 0 rtentry 112 341 0 250 3 0 3 3 0 8 0 unpcb 144 2250 0 2233 21 17 4 6 0 8 3 syncache 336 18 0 18 5 5 0 1 0 8 0 tcpqe 32 5 0 5 2 2 0 1 0 8 0 tcpcb 808 1288 0 1280 23 19 4 8 0 8 3 arp 120 76 0 58 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 336 4476 0 4463 37 27 10 12 0 8 8 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 52 0 27 1 0 1 1 0 8 0 pkpcb 40 7 0 7 4 4 0 1 0 8 0 kcovpl 48 14 0 6 1 0 1 1 0 8 0 ppxss 1168 21 0 21 4 3 1 1 0 8 1 pffrag 232 18 0 10 1 0 1 1 0 482 0 pffrnode 88 18 0 10 1 0 1 1 0 8 0 pffrent 40 37 0 29 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 pfstitem 24 159 0 69 1 0 1 1 0 8 0 pfstkey 128 159 0 69 3 0 3 3 0 8 0 pfstate 376 159 0 69 10 0 10 10 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 1028 0 659 38 11 27 29 0 8 1 art_table 32 1031 0 659 4 0 4 4 0 8 0 art_node 16 331 0 255 1 0 1 1 0 8 0 semapl 112 327 0 317 1 0 1 1 0 8 0 shmpl 112 153 0 4 5 0 5 5 0 8 0 dirhash 1024 65 0 48 3 0 3 3 0 8 0 dino2pl 256 6845 0 5332 96 0 96 96 0 8 0 ffsino 272 6845 0 5332 102 0 102 102 0 8 0 nchpl 144 10832 0 9126 64 0 64 64 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 41085 0 41085 6 5 1 5 0 8 1 percpumem 16 87 0 37 1 0 1 1 0 8 0 kstatmem 264 106 0 74 4 1 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 12 0 12 5 4 1 1 0 8 1 scxspl 216 30742 0 30741 17 14 3 8 1 8 2 plimitpl 152 531 0 514 1 0 1 1 0 8 0 sigapl 424 3175 0 3125 12 5 7 8 0 8 0 futexpl 64 45662 0 45657 1 0 1 1 0 8 0 knotepl 120 813 0 0 24 0 24 24 0 8 0 kqueuepl 216 709 0 697 1 0 1 1 0 8 0 pipepl 320 525 0 496 7 4 3 6 0 8 0 fdescpl 496 3130 0 3100 5 0 5 5 0 8 0 filepl 152 25129 0 24870 39 22 17 20 0 8 5 lockfpl 104 1502 0 1498 4 3 1 2 0 8 0 lockfspl 48 477 0 473 1 0 1 1 0 8 0 sessionpl 144 46 0 37 1 0 1 1 0 8 0 pgrppl 48 100 0 83 1 0 1 1 0 8 0 ucredpl 104 4477 0 4464 1 0 1 1 0 8 0 zombiepl 144 3791 0 3788 1 0 1 1 0 8 0 processpl 1160 3175 0 3125 7 3 4 6 0 8 0 procpl 648 7667 0 7608 10 4 6 7 0 8 0 srpgc 96 21 0 21 6 5 1 1 0 8 1 sosppl 168 25 0 25 5 4 1 1 0 8 1 sockpl 664 7240 0 7207 54 42 12 18 0 8 8 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 147 0 0 19 1 18 19 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 59 0 0 5 0 5 5 0 8 0 mtagpl 96 152 0 0 4 0 4 4 0 8 0 mbufpl 256 563 0 0 33 0 33 33 0 8 0 bufpl 280 8808 0 2634 442 0 442 442 0 8 0 anonpl 24 462408 0 449199 108 6 102 102 0 185 7 amapchunkpl 152 93010 0 92329 47 17 30 36 0 158 1 amappl16 200 11973 0 11488 46 9 37 37 0 8 3 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 165 0 153 1 0 1 1 0 8 0 amappl13 176 10 0 10 2 2 0 1 0 8 0 amappl12 168 3894 0 3863 4 1 3 3 0 8 0 amappl11 160 61 0 46 1 0 1 1 0 8 0 amappl10 152 64 0 64 2 2 0 1 0 8 0 amappl9 144 147 0 146 2 1 1 1 0 8 0 amappl8 136 33 0 29 1 0 1 1 0 8 0 amappl7 128 236 0 223 1 0 1 1 0 8 0 amappl6 120 249 0 247 1 0 1 1 0 8 0 amappl5 112 183 0 170 1 0 1 1 0 8 0 amappl4 104 395 0 375 1 0 1 1 0 8 0 amappl3 96 17431 0 17329 3 0 3 3 0 8 0 amappl2 88 3599 0 3512 3 0 3 3 0 8 0 amappl1 80 19880 0 19318 19 5 14 15 0 8 0 amappl 88 27987 0 27790 5 0 5 5 0 92 0 dma32768 32768 2 0 2 2 2 0 1 0 8 0 dma4096 4096 3 0 3 3 3 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 128 255 0 255 3 2 1 1 0 8 1 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 155 0 4 3 0 3 3 0 8 0 uaddrrnd 24 3130 0 3099 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3130 0 3099 1 0 1 1 0 8 0 vmmpekpl 168 25873 0 25832 3 0 3 3 0 8 0 vmmpepl 168 203656 0 201291 127 13 114 114 0 357 2 vmsppl 448 3129 0 3099 6 2 4 5 0 8 0 rwobjpl 56 61049 0 53551 115 6 109 109 0 8 0 pdppl 4096 6267 0 6198 121 50 71 85 0 8 2 pvpl 32 23748 0 0 192 1 191 191 0 265 0 pmappl 248 3129 0 3099 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 511 0 129 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8349fff0) 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(ffffffff8359d330) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359d330) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff800035f9a930,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff8359d330) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359d330) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff800035f9aa90,ffff800000079e00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f __mp_lock(ffffffff8359d330) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359d330) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff800035f9abf0,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7ab9be3609e0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff8000014b3028,9,0) at witness_checkorder+0x1b4 rw_enter_write(ffff8000014b3018) at rw_enter_write+0x7a sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff8000014b3000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000ffff3b00) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000ffff4a48,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000ffff4a48,ffff80002a133ff0,ffff80002a133f40) at sys_exit+0x1a syscall(ffff80002a133ff0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002a133ff0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7abd0ef095e0, count: -9