login: witness: lock_object uninitialized: 0xffff800000e3a028 Starting stack trace... witness_checkorder(ffff800000e3a028,9,0) at witness_checkorder+0x137 witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000e3a028,9,0) at witness_checkorder+0x137 sys/kern/subr_witness.c:777 rw_enter_write(ffff800000e3a018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e3a000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000e3a000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002e45b260) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff80002128cdc0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff80002128cdc0,ffff800029fc1a00,ffff800029fc1a50) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff800029fc1ad0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800029fc1ad0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a64228640f0, count: 249 End of stack trace. Stopped at db_enter+0x1c: 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+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800000e3a028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000e3a028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000e3a018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e3a000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000e3a000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002e45b260) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff80002128cdc0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff80002128cdc0,ffff800029fc1a00,ffff800029fc1a50) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff800029fc1ad0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800029fc1ad0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a64228640f0, count: -9 ddb{1}> show registers rdi 0 rsi 0x4000000000000000 rbp 0xffff800029fc17a0 rbx 0x3 rdx 0 rcx 0xffff80002128cdc0 rax 0xffff800020d58ff0 r8 0xffff800029fc1740 r9 0x8080808080808080 r10 0xffff800029fc1690 r11 0x2c591e6b3eb5f2c7 r12 0xffff800000e3a001 r13 0xffff800000e3a028 r14 0 r15 0 rip 0xffffffff8275560c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800029fc1790 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=64097 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=85, nice=20 forw=0xffffffffffffffff, list=0xffff80002128c2e0,0xffff8000211e5098 process=0xffff80002e45b260 user=0xffff800029fbc000, vmspace=0xfffffd806b4ed760 estcpu=35, cpticks=18, pctcpu=0.0 user=0, sys=9, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 583 28451 98696 0 2 0 syz-executor.7 72610 27214 56875 0 2 0 syz-executor.3 72610 40626 56875 0 2 0x4000000 syz-executor.3 72610 343244 56875 0 3 0x4000080 fsleep syz-executor.3 47944 338196 88009 0 2 0 syz-executor.5 47944 480403 88009 0 2 0x4000000 syz-executor.5 47944 193643 88009 0 3 0x4000080 fsleep syz-executor.5 31632 169880 1510 0 3 0x1 inode syz-executor.4 31632 172343 1510 0 2 0x4000000 syz-executor.4 31632 453676 1510 0 3 0x4000080 fsleep syz-executor.4 31632 33778 1510 0 3 0x4000080 fsleep syz-executor.4 42523 481413 0 0 3 0x14200 acct acct 40970 141957 23001 0 3 0x82 nanoslp syz-executor.2 14579 101789 1 0 3 0x100083 ttyin getty 98696 155795 23001 0 3 0x82 nanoslp syz-executor.7 56875 482901 23001 0 3 0x82 nanoslp syz-executor.3 18943 21548 1 0 3 0x80 fsleep syz-executor.3 18943 393137 1 0 3 0x4000080 piperd syz-executor.3 23361 443715 23001 0 2 0x2 syz-executor.6 1510 103006 23001 0 3 0x82 nanoslp syz-executor.4 32030 382246 0 0 3 0x14280 nfsidl nfsio 47144 517871 0 0 3 0x14280 nfsidl nfsio 83973 497534 0 0 3 0x14280 nfsidl nfsio 81783 69455 0 0 3 0x14280 nfsidl nfsio 14807 146745 0 0 3 0x14280 nfsidl nfsio 83994 147220 0 0 3 0x14280 nfsidl nfsio 39866 344266 0 0 3 0x14280 nfsidl nfsio 42066 225731 0 0 3 0x14280 nfsidl nfsio 56461 304014 0 0 3 0x14280 nfsidl nfsio 44098 220208 0 0 3 0x14280 nfsidl nfsio 89437 61358 0 0 3 0x14280 nfsidl nfsio 34196 428666 0 0 3 0x14280 nfsidl nfsio 7105 353166 0 0 3 0x14280 nfsidl nfsio 88718 194794 0 0 3 0x14280 nfsidl nfsio 20220 171643 0 0 3 0x14280 nfsidl nfsio 97355 417053 0 0 3 0x14280 nfsidl nfsio 75866 52929 0 0 3 0x14280 nfsidl nfsio 78171 55020 0 0 3 0x14280 nfsidl nfsio 13210 450103 0 0 3 0x14280 nfsidl nfsio 38862 421006 0 0 3 0x14280 nfsidl nfsio 44688 449342 0 0 3 0x14200 bored sosplice 88009 141733 23001 0 3 0x82 nanoslp syz-executor.5 30809 16394 23001 0 3 0x82 nanoslp syz-executor.1 85410 407809 23001 0 3 0x2 biowait syz-executor.0 23001 271823 96624 0 3 0x2000082 wait syz-fuzzer 23001 324684 96624 0 3 0x6000082 nanoslp syz-fuzzer 23001 116687 96624 0 3 0x6000082 thrsleep syz-fuzzer 23001 397527 96624 0 3 0x6000082 wait syz-fuzzer 23001 284220 96624 0 3 0x6000082 kqread syz-fuzzer 23001 92089 96624 0 3 0x6000082 thrsleep syz-fuzzer 23001 35190 96624 0 3 0x6000082 wait syz-fuzzer 23001 339101 96624 0 3 0x6000082 thrsleep syz-fuzzer 23001 85358 96624 0 3 0x6000082 wait syz-fuzzer 23001 412439 96624 0 3 0x6000082 thrsleep syz-fuzzer 23001 81562 96624 0 3 0x6000082 thrsleep syz-fuzzer 23001 140646 96624 0 3 0x6000082 thrsleep syz-fuzzer 23001 489595 96624 0 3 0x6000082 wait syz-fuzzer 23001 216761 96624 0 3 0x6000082 wait syz-fuzzer 23001 143394 96624 0 3 0x6000082 wait syz-fuzzer 23001 261487 96624 0 3 0x6000082 wait syz-fuzzer 96624 113206 8507 0 3 0x10008a sigsusp ksh 8507 409349 28624 0 3 0x9a kqread sshd 28624 280381 1 0 3 0x88 kqread sshd 35851 131578 24770 74 3 0x1100092 bpf pflogd 24770 424578 1 0 3 0x80 netio pflogd 43948 487659 84450 73 3 0x1100090 kqread syslogd 84450 429708 1 0 3 0x100082 netio syslogd 63050 369912 1 0 3 0x100080 kqread resolvd 47610 399950 63182 77 3 0x100092 kqread dhcpleased 72277 346029 63182 77 3 0x100092 kqread dhcpleased 63182 121169 1 0 3 0x80 kqread dhcpleased 95546 335580 0 0 3 0x14200 bored smr 23228 447955 0 0 2 0x14200 zerothread 51201 265573 0 0 3 0x14200 aiodoned aiodoned 54193 111370 0 0 3 0x14200 syncer update 60345 158429 0 0 3 0x14200 cleaner cleaner 64837 22136 0 0 7 0x14200 reaper 95716 129409 0 0 3 0x14200 pgdaemon pagedaemon 52289 391555 0 0 3 0x14200 bored viomb 71399 512944 0 0 3 0x40014200 acpi0 acpi0 64022 213188 0 0 3 0x40014200 idle1 23787 22442 0 0 3 0x14200 bored softnet3 91434 275049 0 0 3 0x14200 bored softnet2 82884 64946 0 0 3 0x14200 bored softnet1 3936 329948 0 0 3 0x14200 bored softnet0 68889 107698 0 0 3 0x14200 bored systqmp 32324 141330 0 0 3 0x14200 bored systq 82630 336773 0 0 3 0x40014200 bored softclock 6867 361655 0 0 3 0x40014200 idle0 1 303518 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 31632 (syz-executor.4) thread 0xffff8000211e5088 (172343) exclusive rrwlock inode r = 0 (0xfffffd80690160a0) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vn_write+0x127 sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x1a0 sys/kern/sys_generic.c:375 #7 sys_pwritev+0xb6 sys/kern/vfs_syscalls.c:3356 #8 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 85410 (syz-executor.0) thread 0xffff8000211f2010 (407809) exclusive rrwlock inode r = 0 (0xfffffd807d8c8f88) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 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:1314 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 #11 namei+0x55a sys/kern/vfs_lookup.c:250 #12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #13 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #13 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80699522c0) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10222 6553K 7107K 78643K 21918 0 pcb 13 14K 16K 78643K 375 0 rtable 245 7K 7K 78643K 808 0 pf 32 9K 10K 78643K 140 0 ifaddr 45 15K 16K 78643K 130 0 ifgroup 55 2K 2K 78643K 208 0 sysctl 2 0K 2K 78643K 12 0 counters 60 35K 36K 78643K 152 0 ioctlops 0 0K 4K 78643K 1633 0 iov 0 0K 32K 78643K 483 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1478 92K 93K 78643K 7111 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 81 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 451 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 85K 78643K 6293 0 sigio 0 0K 0K 78643K 79 0 proc 76 115K 128K 78643K 1248 0 subproc 117 7K 7K 78643K 247 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 252 0 in_multi 99 7K 7K 78643K 314 0 ether_multi 1 0K 0K 78643K 9 0 mrt 1 0K 0K 78643K 8 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 199 890K 890K 78643K 199 0 exec 0 0K 1K 78643K 1119 0 pfkey data 0 0K 0K 78643K 11 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 430 103K 106K 78643K 64915 0 UVM aobj 131 6K 6K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 138 0 NDP 12 0K 1K 78643K 96 0 temp 79 5920K 6002K 78643K 38583 0 kqueue 12 18K 28K 78643K 556 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 128 0 125 1 0 1 1 0 8 0 rtentry 112 244 0 130 4 0 4 4 0 8 0 unpcb 144 3578 0 3563 56 53 3 6 0 8 2 syncache 296 40 0 40 11 11 0 1 0 8 0 tcpqe 32 268 0 268 7 7 0 1 0 8 0 tcpcb 808 2080 0 2068 72 70 2 11 0 8 0 arp 120 41 0 22 1 0 1 1 0 8 0 inpcb 368 4174 0 4159 85 80 5 13 0 8 3 nd6 136 61 0 34 1 0 1 1 0 8 0 pkpcb 40 23 0 23 5 4 1 1 0 8 1 kcovpl 48 19 0 10 1 0 1 1 0 8 0 ppxss 1256 18 0 18 5 5 0 1 0 8 0 pffrag 232 35 0 35 5 5 0 1 0 482 0 pffrnode 88 35 0 35 5 5 0 1 0 8 0 pffrent 40 170 0 170 7 7 0 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 24 206 0 194 1 0 1 1 0 8 0 pfstkey 128 206 0 194 1 0 1 1 0 8 0 pfstate 376 206 0 194 8 6 2 4 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 955 0 486 30 0 30 30 0 8 0 art_table 32 956 0 486 4 0 4 4 0 8 0 art_node 16 236 0 132 1 0 1 1 0 8 0 sysvmsgpl 40 54 0 20 1 0 1 1 0 8 0 semapl 112 449 0 439 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 11452 0 9978 93 0 93 93 0 8 0 ffsino 272 11452 0 9978 99 0 99 99 0 8 0 nchpl 144 20205 0 19649 63 40 23 63 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 73158 0 73157 11 10 1 2 0 8 0 percpumem 16 89 0 46 1 0 1 1 0 8 0 kstatmem 264 116 0 92 2 0 2 2 0 8 0 scxspl 216 51810 0 51808 12 11 1 8 1 8 0 plimitpl 152 756 0 739 1 0 1 1 0 8 0 sigapl 424 6618 0 6549 9 1 8 8 0 8 0 futexpl 64 61984 0 61979 1 0 1 1 0 8 0 knotepl 120 699 0 0 14 3 11 14 0 8 0 kqueuepl 216 2097 0 2088 15 14 1 7 0 8 0 pipepl 320 1458 0 1428 38 35 3 9 0 8 0 fdescpl 496 6576 0 6548 7 2 5 5 0 8 0 filepl 152 47118 0 46857 109 96 13 23 0 8 2 lockfpl 104 1758 0 1751 3 2 1 2 0 8 0 lockfspl 48 771 0 764 1 0 1 1 0 8 0 sessionpl 144 38 0 20 1 0 1 1 0 8 0 pgrppl 48 80 0 62 1 0 1 1 0 8 0 ucredpl 104 14848 0 14835 1 0 1 1 0 8 0 zombiepl 144 8841 0 8839 1 0 1 1 0 8 0 processpl 1072 6618 0 6549 5 0 5 5 0 8 0 procpl 696 17997 0 17904 23 13 10 10 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 54 0 54 9 9 0 1 0 8 0 sockpl 488 8012 0 7979 238 227 11 21 0 8 5 mcl64k 65536 20 0 0 3 0 3 3 0 8 0 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 8 0 0 1 0 1 1 0 8 0 mcl8k 8192 35 0 0 3 0 3 3 0 8 0 mcl4k 4096 32 0 0 3 1 2 3 0 8 0 mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 mcl2k 2048 376 0 0 40 6 34 40 0 8 0 mtagpl 96 428 0 0 8 0 8 8 0 8 0 mbufpl 256 1633 0 0 80 0 80 80 0 8 0 bufpl 288 13976 0 7648 453 0 453 453 0 8 0 anonpl 24 677236 0 663631 108 20 88 92 0 186 0 amapchunkpl 152 203624 0 202707 77 36 41 41 0 158 2 amappl16 200 12071 0 11696 26 5 21 25 0 8 0 amappl15 192 11 0 11 1 1 0 1 0 8 0 amappl14 184 212 0 195 2 1 1 2 0 8 0 amappl13 176 11 0 10 3 2 1 1 0 8 0 amappl12 168 7433 0 7402 3 1 2 2 0 8 0 amappl11 160 59 0 45 1 0 1 1 0 8 0 amappl10 152 39 0 28 1 0 1 1 0 8 0 amappl9 144 251 0 251 16 16 0 1 0 8 0 amappl8 136 499 0 374 5 0 5 5 0 8 0 amappl7 128 122 0 107 2 1 1 2 0 8 0 amappl6 120 401 0 372 2 1 1 2 0 8 0 amappl5 112 386 0 375 1 0 1 1 0 8 0 amappl4 104 734 0 686 3 1 2 3 0 8 0 amappl3 96 40582 0 40494 4 1 3 3 0 8 0 amappl2 88 7023 0 6945 3 1 2 3 0 8 0 amappl1 80 32282 0 31718 23 10 13 23 0 8 0 amappl 88 64125 0 63868 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 6576 0 6547 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 6576 0 6547 1 0 1 1 0 8 0 vmmpekpl 168 54945 0 54869 4 0 4 4 0 8 0 vmmpepl 168 402059 0 399654 240 120 120 127 0 357 5 vmsppl 464 6575 0 6547 5 0 5 5 0 8 0 rwobjpl 56 105987 0 98350 114 5 109 109 0 8 0 pdppl 4096 13160 0 13094 629 557 72 80 0 8 6 pvpl 32 1844780 0 1825046 405 240 165 367 0 265 0 pmappl 248 6575 0 6547 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1615 0 731 26 0 26 26 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82bd4ff0) 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(ffffffff82cf3cd0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cf3cd0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff8000211b8da0,ffff800000069c00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff82cf3cd0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cf3cd0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff8000211b8ef0,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff82cf3cd0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cf3cd0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 reaper(ffff8000211ad058) at reaper+0x160 sys/kern/kern_exit.c:437 end trace frame: 0x0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800000e3a028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000e3a028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000e3a018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e3a000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000e3a000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002e45b260) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff80002128cdc0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff80002128cdc0,ffff800029fc1a00,ffff800029fc1a50) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff800029fc1ad0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800029fc1ad0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a64228640f0, count: -9