V:J%R ?-4*@GLntzr70|`$ܕ~r|겿8-)voڱ,r˘vx +Fv7F'witness: lock_object uninitialized: 0xffff8000015a5030 Starting stack trace... witness_checkorder(ffff8000015a5030,9,0) at witness_checkorder+0x1af witness_debugger sys/kern/subr_witness.c:2522 [inline] witness_checkorder(ffff8000015a5030,9,0) at witness_checkorder+0x1af sys/kern/subr_witness.c:779 rw_do_enter_write(ffff8000015a5018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff8000015a5000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff80003c5afdb8) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff80003c502028,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff80003c502028,ffff80003c4f6550,ffff80003c4f64a0) at sys_exit+0x1a syscall(ffff80003c4f6550) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4f6550) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x753206ee98a0, 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(ffff8000015a5030,9,0) at witness_checkorder+0x1b4 rw_do_enter_write(ffff8000015a5018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff8000015a5000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff80003c5afdb8) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff80003c502028,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff80003c502028,ffff80003c4f6550,ffff80003c4f64a0) at sys_exit+0x1a syscall(ffff80003c4f6550) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4f6550) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x753206ee98a0, count: -9 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c4f61e0 rbx 0 rdx 0 rcx 0xffff80003c502028 rax 0xffff800029a9bff0 r8 0xffff80003c4f6180 r9 0x8080808080808080 r10 0xd33fb4bdb55e09ea r11 0xe32cfde394fbf938 r12 0 r13 0x1 r14 0xffff8000015a5030 r15 0x3 rip 0xffffffff81441685 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4f61d0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=467924 pid=98793 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=86, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c502028 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003c5034a8,0xffffffff838a0238 process=0xffff80003c5afdb8 user=0xffff80003c4f1000, vmspace=0xfffffd806be9dc90 estcpu=36, cpticks=8, pctcpu=0.0, user=0, sys=7, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 16992 21990 35908 0 3 0x10008a sigsusp sh 66918 242739 6286 0 3 0x90 fsleep syz-executor 66918 229757 6286 0 3 0x4000090 kqsel syz-executor 84076 53692 61753 0 3 0x80 fsleep syz-executor 84076 284196 61753 0 3 0x4000080 sbwait syz-executor 84076 210686 61753 0 3 0x4000080 fsleep syz-executor 35908 296316 90194 0 3 0x82 wait syz-executor 67151 11548 35273 0 3 0x80 fsleep syz-executor 67151 382754 35273 0 3 0x4000080 lockf syz-executor 89406 334080 82276 0 3 0x80 fsleep syz-executor 89406 514330 82276 0 3 0x4000080 kqread syz-executor 92753 188883 0 0 3 0x14280 nfsidl nfsio 63511 392480 0 0 3 0x14280 nfsidl nfsio 49537 115080 0 0 3 0x14280 nfsidl nfsio 38539 288656 0 0 3 0x14280 nfsidl nfsio 84939 416892 0 0 3 0x14280 nfsidl nfsio 88430 222279 0 0 3 0x14280 nfsidl nfsio 65486 188419 0 0 3 0x14280 nfsidl nfsio 54130 47795 0 0 3 0x14280 nfsidl nfsio 87077 13944 0 0 3 0x14280 nfsidl nfsio 42478 265489 0 0 3 0x14280 nfsidl nfsio 80919 139666 0 0 3 0x14280 nfsidl nfsio 40305 119437 0 0 3 0x14280 nfsidl nfsio 73368 520277 0 0 3 0x14280 nfsidl nfsio 74827 223754 0 0 3 0x14280 nfsidl nfsio 45816 378893 0 0 3 0x14280 nfsidl nfsio 46494 101242 0 0 3 0x14280 nfsidl nfsio 45176 463117 0 0 3 0x14280 nfsidl nfsio 32528 429773 0 0 3 0x14280 nfsidl nfsio 2555 519644 0 0 3 0x14280 nfsidl nfsio 99634 521112 0 0 3 0x14280 nfsidl nfsio 72402 29894 1 0 3 0x100083 ttyin getty 50501 228918 90194 0 2 0x2 syz-executor 4758 495070 0 0 3 0x14200 bored sosplice 61753 184967 90194 0 3 0x82 nanoslp syz-executor 82276 4834 90194 0 3 0x82 nanoslp syz-executor 6286 371306 90194 0 3 0x82 nanoslp syz-executor 51926 411414 90194 0 3 0x82 nanoslp syz-executor 35273 166590 90194 0 3 0x82 nanoslp syz-executor 59090 462987 90194 0 3 0x82 nanoslp syz-executor 90194 360439 74971 0 3 0x82 kqread syz-executor 74971 362642 63589 0 3 0x10008a sigsusp ksh 63589 306005 53377 0 3 0x98 kqread sshd-session 53377 260593 3594 0 3 0x92 kqread sshd-session 3594 455164 1 0 3 0x88 kqread sshd 57657 522254 77623 74 3 0x1100092 bpf pflogd 77623 228605 1 0 3 0x80 sbwait pflogd 74601 233204 76607 73 3 0x1100090 kqread syslogd 76607 231190 1 0 3 0x100082 sbwait syslogd 12146 359411 1 0 3 0x100080 kqread resolvd 41473 71262 86748 77 3 0x100092 kqread dhcpleased 52272 385980 86748 77 3 0x100092 kqread dhcpleased 86748 151209 1 0 3 0x80 kqread dhcpleased 26959 291978 0 0 3 0x14200 bored smr 16794 67607 0 0 3 0x14200 pgzero zerothread 58369 137847 0 0 3 0x14200 aiodoned aiodoned 42712 227197 0 0 3 0x14200 syncer update 39752 209203 0 0 3 0x14200 cleaner cleaner 27411 223172 0 0 7 0x14200 reaper 63317 257190 0 0 3 0x14200 pgdaemon pagedaemon 73019 286579 0 0 3 0x14200 bored viomb 90354 296475 0 0 3 0x40014200 acpi0 acpi0 57365 352509 0 0 3 0x40014200 idle1 39705 204709 0 0 3 0x14200 bored softnet3 12731 128911 0 0 3 0x14200 bored softnet2 84246 178167 0 0 3 0x14200 bored softnet1 96505 172096 0 0 2 0x14200 softnet0 74389 86265 0 0 3 0x14200 bored systqmp 80819 413723 0 0 3 0x14200 bored systq 17713 118392 0 0 3 0x14200 tmoslp softclockmp 53745 294052 0 0 3 0x40014200 tmoslp softclock 92532 384968 0 0 3 0x40014200 idle0 1 51097 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 84076 (syz-executor) thread 0xffff80003c51c7e8 (284196) exclusive rwlock sbufrcv r = 0 (0xffff8000014c2968) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sblock+0xb7 sys/kern/uipc_socket2.c:537 #3 soreceive+0x28e sys/kern/uipc_socket.c:882 #4 recvit+0x40a sys/kern/uipc_syscalls.c:1072 #5 sys_recvmmsg+0x3d3 sys/kern/uipc_syscalls.c:963 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 50501 (syz-executor) thread 0xffff80003c503c58 (228918) exclusive rrwlock inode r = 0 (0xfffffd8072165968) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3102 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806a5b1960) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3087 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 27411 (reaper) thread 0xffff8000ffffc298 (223172) exclusive rwlock uobjlk r = 0 (0xfffffd806bc26068) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 uvn_detach+0x30 sys/uvm/uvm_vnode.c:310 #3 uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 #4 uvm_map_teardown+0x354 sys/uvm/uvm_map.c:2516 #5 uvmspace_free+0xcd sys/uvm/uvm_map.c:3420 #6 reaper+0x246 sys/kern/kern_exit.c:477 #7 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10229 11246K 11435K 166960K 12441 0 pcb 18 12K 12K 166960K 148 0 rtable 168 5K 9K 166960K 787 0 pf 34 17K 22K 166960K 212 0 ifaddr 32 5K 8K 166960K 119 0 ifgroup 51 2K 2K 166960K 151 0 sysctl 4 1K 1K 166960K 4 0 counters 62 36K 37K 166960K 126 0 ioctlops 0 0K 4K 166960K 1643 0 iov 1 4K 16K 166960K 108 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1420 89K 90K 166960K 2350 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 12 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 108 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 89K 166960K 1155 0 sigio 1 0K 0K 166960K 38 0 proc 74 115K 128K 166960K 986 0 subproc 72 4K 4K 166960K 189 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 104 0 in_multi 65 4K 7K 166960K 268 0 ether_multi 1 0K 0K 166960K 5 0 mrt 1 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 695 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 1K 166960K 18 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 217 72K 77K 166960K 11467 0 UVM aobj 35 4K 4K 166960K 41 0 pinsyscall 42 84K 101K 166960K 2581 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 43 0 NDP 11 0K 2K 166960K 82 0 temp 77 8644K 8724K 166960K 34276 0 kqueue 14 22K 30K 166960K 149 0 SYN cache 2 10K 18K 166960K 3 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 120 101 0 98 1 0 1 1 0 8 0 rtentry 112 260 0 186 4 0 4 4 0 8 0 unpcb 144 537 0 518 5 4 1 4 0 8 0 syncache 336 6 0 6 3 3 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 344 0 338 13 9 4 7 0 8 3 arp 120 45 0 34 1 0 1 1 0 8 0 inpcb 376 1175 0 1164 28 18 10 15 0 8 8 nd6 136 63 0 48 1 0 1 1 0 8 0 pkpcb 40 51 0 51 2 2 0 1 0 8 0 kcovpl 48 21 0 13 1 0 1 1 0 8 0 ppxss 1168 12 0 12 2 2 0 1 0 8 0 pppxif 1472 3 0 3 2 2 0 1 0 8 0 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pffrag 232 9 0 4 1 0 1 1 0 482 0 pffrnode 88 9 0 4 1 0 1 1 0 8 0 pffrent 40 16 0 11 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 6 0 6 1 1 0 1 0 8 0 pfanchor 1288 1 0 1 1 1 0 1 0 8 0 pftag 88 30 0 30 2 2 0 1 0 8 0 pfstitem 24 71 0 31 1 0 1 1 0 8 0 pfstkey 128 71 0 31 3 0 3 3 0 8 0 pfstate 376 70 0 31 7 0 7 7 0 8 0 pfrule 1344 41 0 32 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1089 0 773 31 6 25 31 0 8 0 art_table 32 1090 0 773 4 0 4 4 0 8 0 art_node 16 256 0 190 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semupl 112 3 0 3 2 2 0 1 0 8 0 semapl 112 106 0 96 1 0 1 1 0 8 0 shmpl 112 38 0 6 1 0 1 1 0 8 0 dirhash 1024 28 0 11 3 0 3 3 0 8 0 dino2pl 256 3233 0 1709 96 0 96 96 0 8 0 ffsino 280 3233 0 1709 110 0 110 110 0 8 0 nchpl 144 4541 0 2817 65 1 64 64 0 8 0 uvmvnodes 80 3872 0 0 80 0 80 80 0 8 0 vnodes 216 3872 0 0 216 0 216 216 0 8 0 namei 1024 16323 0 16322 3 2 1 2 0 8 0 percpumem 16 77 0 32 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 2 1 1 0 1 0 8 0 kstatmem 264 78 0 56 3 1 2 3 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 15724 0 15724 12 7 5 8 1 8 5 plimitpl 152 146 0 128 1 0 1 1 0 8 0 sigapl 424 1452 0 1381 10 1 9 9 0 8 0 futexpl 64 13340 0 13335 1 0 1 1 0 8 0 knotepl 120 551 0 0 17 0 17 17 0 8 0 kqueuepl 216 263 0 251 1 0 1 1 0 8 0 pipepl 328 254 0 226 3 0 3 3 0 8 0 fdescpl 504 1413 0 1383 5 0 5 5 0 8 0 filepl 152 8141 0 7911 22 9 13 14 0 8 2 lockfpl 104 606 0 602 4 3 1 4 0 8 0 lockfspl 48 98 0 95 1 0 1 1 0 8 0 sessionpl 144 39 0 30 1 0 1 1 0 8 0 pgrppl 48 63 0 46 1 0 1 1 0 8 0 ucredpl 104 1684 0 1668 1 0 1 1 0 8 0 zombiepl 144 1455 0 1452 1 0 1 1 0 8 0 processpl 1168 1452 0 1381 7 1 6 6 0 8 0 procpl 656 2793 0 2715 8 0 8 8 0 8 0 srpgc 96 8 0 8 4 4 0 1 0 8 0 sosppl 168 2 0 2 2 2 0 1 0 8 0 sockpl 688 1876 0 1843 28 16 12 16 0 8 8 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 128 0 0 16 0 16 16 0 8 0 mcl2k 2048 30 0 0 4 0 4 4 0 8 0 mtagpl 96 69 0 0 2 0 2 2 0 8 0 mbufpl 256 1191 0 0 74 0 74 74 0 8 0 bufpl 280 5108 0 142 355 0 355 355 0 8 0 anonpl 24 180221 0 176816 48 7 41 48 0 184 0 amapchunkpl 152 35377 0 34921 27 6 21 23 0 158 1 amappl16 200 3114 0 3082 16 9 7 16 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 147 0 134 1 0 1 1 0 8 0 amappl13 176 20 0 19 1 0 1 1 0 8 0 amappl12 168 2261 0 2228 3 1 2 2 0 8 0 amappl11 160 55 0 41 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 245 0 245 1 1 0 1 0 8 0 amappl8 136 22 0 19 1 0 1 1 0 8 0 amappl7 128 135 0 122 1 0 1 1 0 8 0 amappl6 120 309 0 304 1 0 1 1 0 8 0 amappl5 112 179 0 169 1 0 1 1 0 8 0 amappl4 104 370 0 351 1 0 1 1 0 8 0 amappl3 96 7210 0 7101 4 0 4 4 0 8 0 amappl2 88 837 0 774 2 0 2 2 0 8 0 amappl1 80 12383 0 11798 14 0 14 14 0 8 0 amappl 88 10946 0 10788 5 0 5 5 0 92 0 dma32768 32768 2 0 2 2 2 0 1 0 8 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 33 0 33 1 1 0 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 40 0 6 1 0 1 1 0 8 0 uaddrrnd 24 1413 0 1382 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1413 0 1382 1 0 1 1 0 8 0 vmmpekpl 168 12844 0 12797 3 0 3 3 0 8 0 vmmpepl 168 90780 0 88920 97 9 88 96 0 357 1 vmsppl 456 1412 0 1381 5 0 5 5 0 8 0 rwobjpl 64 29275 0 24422 80 1 79 79 0 8 0 pdppl 4096 2833 0 2762 113 40 73 83 0 8 2 pvpl 32 16262 0 0 132 0 132 132 0 265 0 pmappl 248 1412 0 1381 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 381 0 69 10 0 10 10 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff83851ff0) 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(ffffffff8398e688) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8398e688) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a301f80,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff8398e688) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8398e688) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff8398e688) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8398e688) at __mp_lock+0x192 sys/kern/kern_lock.c:144 uvn_detach(fffffd806bdcfa30) at uvn_detach+0x7e uvm_unmap_detach(ffff80002a302270,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_map_teardown(fffffd806be9d1e0) at uvm_map_teardown+0x354 sys/uvm/uvm_map.c:2516 uvmspace_free(fffffd806be9d1e0) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3420 reaper(ffff8000ffffc298) at reaper+0x246 sys/kern/kern_exit.c:477 end trace frame: 0x0, count: -15 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(ffff8000015a5030,9,0) at witness_checkorder+0x1b4 rw_do_enter_write(ffff8000015a5018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff8000015a5000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff80003c5afdb8) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff80003c502028,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff80003c502028,ffff80003c4f6550,ffff80003c4f64a0) at sys_exit+0x1a syscall(ffff80003c4f6550) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4f6550) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x753206ee98a0, count: -9