witness: lock_object uninitialized: 0xffff8000015cc030 Starting stack trace... witness_checkorder(ffff8000015cc030,9,0) at witness_checkorder+0x1af witness_debugger sys/kern/subr_witness.c:2522 [inline] witness_checkorder(ffff8000015cc030,9,0) at witness_checkorder+0x1af sys/kern/subr_witness.c:779 rw_do_enter_write(ffff8000015cc018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff8000015cc000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002a361dc0) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff80003c4dea68,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff80003c4dea68,ffff80002a472670,ffff80002a4725c0) at sys_exit+0x1a syscall(ffff80002a472670) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a472670) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72d2791a7520, 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(ffff8000015cc030,9,0) at witness_checkorder+0x1b4 rw_do_enter_write(ffff8000015cc018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff8000015cc000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002a361dc0) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff80003c4dea68,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff80003c4dea68,ffff80002a472670,ffff80002a4725c0) at sys_exit+0x1a syscall(ffff80002a472670) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a472670) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72d2791a7520, count: -9 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a472300 rbx 0 rdx 0 rcx 0xffff80003c4dea68 rax 0xffff800029a9bff0 r8 0xffff80002a4722a0 r9 0x8080808080808080 r10 0xf6a58d4b3b0ba8ad r11 0xc82a6b0b006aa9f3 r12 0 r13 0x1 r14 0xffff8000015cc030 r15 0x3 rip 0xffffffff82edcdb5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a4722f0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=14242 pid=39718 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c4dea68 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003c4dfc58,0xffffffff83987e30 process=0xffff80002a361dc0 user=0xffff80002a46d000, vmspace=0xfffffd806eb99ab8 estcpu=36, cpticks=9, pctcpu=0.0, user=0, sys=9, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 39150 38136 70558 0 7 0 syz-executor 59128 505942 91462 0 2 0x10 syz-executor 59128 388183 91462 0 2 0x4000010 syz-executor 59128 362549 91462 0 3 0x4000090 fsleep syz-executor 30683 367785 40033 0 3 0x80 nanoslp syz-executor 30683 442802 40033 0 3 0x4000080 pipewr syz-executor 30683 278476 40033 0 3 0x4000080 fsleep syz-executor 70558 237405 86494 0 3 0x82 nanoslp syz-executor 91462 200000 86494 0 3 0x82 nanoslp syz-executor 98801 153529 86494 0 3 0x2 biowait syz-executor 40033 209231 86494 0 3 0x82 nanoslp syz-executor 73920 447570 86494 0 3 0x82 nanoslp syz-executor 65283 286579 89093 0 3 0x82 sbwait sshd-session 43907 296844 1 0 3 0x100083 ttyopn getty 20175 21423 0 0 3 0x14280 nfsidl nfsio 19205 271294 0 0 3 0x14280 nfsidl nfsio 46086 385915 0 0 3 0x14280 nfsidl nfsio 38771 372704 0 0 3 0x14280 nfsidl nfsio 11712 138218 0 0 3 0x14280 nfsidl nfsio 46792 263488 0 0 3 0x14280 nfsidl nfsio 84944 237231 0 0 3 0x14280 nfsidl nfsio 36634 308701 0 0 3 0x14280 nfsidl nfsio 99122 355457 0 0 3 0x14280 nfsidl nfsio 13809 511288 0 0 3 0x14280 nfsidl nfsio 24694 517308 0 0 3 0x14280 nfsidl nfsio 36398 352776 0 0 3 0x14280 nfsidl nfsio 64968 24698 0 0 3 0x14280 nfsidl nfsio 34258 269135 0 0 3 0x14280 nfsidl nfsio 55465 515146 0 0 3 0x14280 nfsidl nfsio 43473 313568 0 0 3 0x14280 nfsidl nfsio 40195 205870 0 0 3 0x14280 nfsidl nfsio 44069 223698 0 0 3 0x14280 nfsidl nfsio 77089 27074 0 0 3 0x14280 nfsidl nfsio 47039 43282 0 0 3 0x14280 nfsidl nfsio 16744 132398 0 0 3 0x14200 bored sosplice 16410 509747 86494 0 3 0x82 nanoslp syz-executor 64938 141364 86494 0 3 0x82 nanoslp syz-executor 68013 19749 86494 0 3 0x82 wait syz-executor 86494 95491 30757 0 3 0x82 kqread syz-executor 30757 116434 89573 0 3 0x10008a sigsusp ksh 89573 124097 19489 0 3 0x98 kqread sshd-session 19489 295475 89093 0 3 0x92 kqread sshd-session 89093 489283 1 0 3 0x88 kqread sshd 94951 51370 98688 74 3 0x1100092 bpf pflogd 98688 415899 1 0 3 0x80 sbwait pflogd 63941 153989 51980 73 3 0x1100090 kqread syslogd 51980 271725 1 0 3 0x100082 sbwait syslogd 5455 11610 1 0 3 0x100080 kqread resolvd 47294 76112 18802 77 3 0x100092 kqread dhcpleased 95832 128173 18802 77 3 0x100092 kqread dhcpleased 18802 224193 1 0 3 0x80 kqread dhcpleased 62889 424143 0 0 3 0x14200 bored smr 59632 440180 0 0 2 0x14200 zerothread 22019 139273 0 0 3 0x14200 aiodoned aiodoned 32273 303318 0 0 3 0x14200 syncer update 60768 21711 0 0 3 0x14200 cleaner cleaner 36414 102481 0 0 2 0x14200 reaper 3393 166746 0 0 3 0x14200 pgdaemon pagedaemon 54777 428641 0 0 3 0x14200 bored viomb 68428 493386 0 0 3 0x40014200 acpi0 acpi0 72491 105228 0 0 3 0x40014200 idle1 79931 222410 0 0 3 0x14200 bored softnet3 91987 129007 0 0 3 0x14200 bored softnet2 72826 27811 0 0 3 0x14200 bored softnet1 72616 499890 0 0 2 0x14200 softnet0 10798 101988 0 0 3 0x14200 bored systqmp 92841 73916 0 0 3 0x14200 bored systq 88313 166058 0 0 3 0x14200 tmoslp softclockmp 47954 351938 0 0 3 0x40014200 tmoslp softclock 40713 421796 0 0 3 0x40014200 idle0 1 373912 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 39150 (syz-executor) thread 0xffff80003c4dfc58 (38136) exclusive rwlock amaplk r = 0 (0xfffffd807926b8a0) #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 uvm_fault_check+0x54c sys/uvm/uvm_fault.c:846 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806e0394a0) #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_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1864 #3 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:732 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #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 98801 (syz-executor) thread 0xffff8000ffff82b0 (153529) exclusive rrwlock inode r = 0 (0xfffffd807e061988) #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 (0xfffffd806f16b640) #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 36414 (reaper) thread 0xffff8000ffffd1f8 (102481) exclusive rwlock kmmaplk r = 0 (0xffffffff839bebf8) #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 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5250 #3 uvm_unmap+0x81 sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:833 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:284 #6 reaper+0x1fe sys/kern/kern_exit.c:466 #7 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10253 11156K 11543K 166960K 16265 0 pcb 17 22K 24K 166960K 706 0 rtable 218 12K 13K 166960K 916 0 pf 41 18K 20K 166960K 242 0 ifaddr 42 7K 8K 166960K 185 0 ifgroup 63 2K 2K 166960K 318 0 sysctl 4 1K 1K 166960K 14 0 counters 68 36K 37K 166960K 256 0 ioctlops 0 0K 4K 166960K 1882 0 iov 0 0K 28K 166960K 422 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1445 91K 92K 166960K 4630 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 83 0 VM map 2 1K 1K 166960K 2 0 sem 47 20K 20K 166960K 201 0 dirhash 12 2K 3K 166960K 81 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 93K 166960K 3231 0 sigio 0 0K 0K 166960K 167 0 proc 75 115K 140K 166960K 1068 0 subproc 72 4K 4K 166960K 153 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 604 0 in_multi 78 5K 7K 166960K 331 0 ether_multi 1 0K 0K 166960K 21 0 mrt 3 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 283 1261K 1261K 166960K 283 0 exec 0 0K 1K 166960K 1157 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 249 74K 92K 166960K 32297 0 UVM aobj 131 13K 13K 166960K 137 0 pinsyscall 44 88K 105K 166960K 4607 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 14 0K 2K 166960K 135 0 temp 78 8644K 8886K 166960K 134962 0 kqueue 13 20K 30K 166960K 548 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 120 472 0 469 6 4 2 3 0 8 1 rtentry 112 284 0 192 4 0 4 4 0 8 0 unpcb 144 2481 0 2464 18 14 4 7 0 8 3 syncache 336 15 0 15 8 7 1 1 0 8 1 tcpqe 32 6 0 6 5 4 1 1 0 8 1 tcpcb 808 1415 0 1405 44 34 10 14 0 8 8 arp 120 53 0 29 1 0 1 1 0 8 0 inpcb 376 4581 0 4565 88 77 11 22 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 56 0 36 1 0 1 1 0 8 0 pkpcb 40 10 0 10 4 4 0 1 0 8 0 kcovpl 48 17 0 9 1 0 1 1 0 8 0 ppxss 1168 56 0 56 7 6 1 1 0 8 1 pppxif 1472 11 0 11 5 4 1 1 0 8 1 pffrag 232 31 0 21 1 0 1 1 0 482 0 pffrnode 88 31 0 21 1 0 1 1 0 8 0 pffrent 40 56 0 46 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 24 195 0 78 1 0 1 1 0 8 0 pfstkey 128 195 0 78 4 0 4 4 0 8 0 pfstate 376 195 0 78 13 0 13 13 0 8 0 pfrule 1344 23 0 17 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 1234 0 842 39 14 25 31 0 8 0 art_table 32 1237 0 842 4 0 4 4 0 8 0 art_node 16 274 0 193 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 11 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 197 0 152 2 0 2 2 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 64 0 47 3 0 3 3 0 8 0 dino2pl 256 7646 0 6131 95 0 95 95 0 8 0 ffsino 280 7646 0 6131 109 0 109 109 0 8 0 nchpl 144 12436 0 11815 64 40 24 63 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 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 46609 0 46608 8 7 1 3 0 8 0 percpumem 16 142 0 94 1 0 1 1 0 8 0 kstatmem 264 182 0 154 3 1 2 3 0 8 0 scsiplug 72 14 0 14 6 5 1 1 0 8 1 scxspl 216 35391 0 35390 15 14 1 8 1 8 0 plimitpl 152 746 0 729 1 0 1 1 0 8 0 sigapl 424 3545 0 3474 10 1 9 9 0 8 0 futexpl 64 47533 0 47531 1 0 1 1 0 8 0 knotepl 120 584 0 0 17 0 17 17 0 8 0 kqueuepl 216 1207 0 1198 16 15 1 6 0 8 0 pipepl 328 636 0 607 18 15 3 8 0 8 0 fdescpl 504 3503 0 3472 5 0 5 5 0 8 0 filepl 152 28117 0 27886 57 38 19 19 0 8 6 lockfpl 104 1924 0 1921 7 6 1 5 0 8 0 lockfspl 48 599 0 596 1 0 1 1 0 8 0 sessionpl 144 45 0 35 1 0 1 1 0 8 0 pgrppl 48 98 0 80 1 0 1 1 0 8 0 ucredpl 104 5255 0 5240 1 0 1 1 0 8 0 zombiepl 144 4532 0 4528 1 0 1 1 0 8 0 processpl 1168 3545 0 3474 7 1 6 6 0 8 0 procpl 656 8736 0 8659 8 0 8 8 0 8 0 srpgc 96 25 0 25 7 6 1 1 0 8 1 sosppl 168 21 0 21 8 7 1 1 0 8 1 sockpl 688 7739 0 7706 103 90 13 25 0 8 8 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 117 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 47 0 0 6 1 5 5 0 8 0 mtagpl 96 95 0 0 3 0 3 3 0 8 0 mbufpl 256 3436 0 0 215 0 215 215 0 8 0 bufpl 280 10032 0 3878 440 0 440 440 0 8 0 anonpl 24 441231 0 434901 169 105 64 74 0 184 10 amapchunkpl 152 105671 0 105013 66 33 33 35 0 158 1 amappl16 200 9405 0 9332 82 66 16 23 0 8 8 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 153 0 140 1 0 1 1 0 8 0 amappl13 176 34 0 34 1 1 0 1 0 8 0 amappl12 168 4302 0 4270 4 2 2 3 0 8 0 amappl11 160 55 0 41 1 0 1 1 0 8 0 amappl10 152 9 0 8 1 0 1 1 0 8 0 amappl9 144 251 0 250 1 0 1 1 0 8 0 amappl8 136 22 0 19 1 0 1 1 0 8 0 amappl7 128 140 0 126 1 0 1 1 0 8 0 amappl6 120 282 0 277 1 0 1 1 0 8 0 amappl5 112 189 0 179 1 0 1 1 0 8 0 amappl4 104 396 0 376 1 0 1 1 0 8 0 amappl3 96 22036 0 21919 5 1 4 4 0 8 0 amappl2 88 920 0 850 2 0 2 2 0 8 0 amappl1 80 20680 0 20039 23 6 17 17 0 8 1 amappl 88 31558 0 31371 5 0 5 5 0 92 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 3 0 2 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 256 0 256 4 4 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 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 3503 0 3471 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3503 0 3471 1 0 1 1 0 8 0 vmmpekpl 168 27254 0 27189 4 0 4 4 0 8 0 vmmpepl 168 219113 0 217065 144 39 105 107 0 357 7 vmsppl 456 3502 0 3471 8 3 5 5 0 8 0 rwobjpl 64 62103 0 54963 124 4 120 121 0 8 0 pdppl 4096 7014 0 6942 152 76 76 86 0 8 4 pvpl 32 20776 0 0 168 1 167 167 0 265 0 pmappl 248 3502 0 3471 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 616 0 151 14 0 14 14 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff83791ff0) 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(ffffffff838e3cd8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838e3cd8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a3cc750,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d pmap_enter(fffffd806bccdab8,954def50000,6c164000,1,20) at pmap_enter+0xc32 pmap_unmap_ptes sys/arch/amd64/amd64/pmap.c:456 [inline] pmap_enter(fffffd806bccdab8,954def50000,6c164000,1,20) at pmap_enter+0xc32 sys/arch/amd64/amd64/pmap.c:2954 uvm_fault_upper_lookup(ffff80002a3ccb38,ffff80002a3ccb70,ffff80002a3cca30,ffff80002a3ccab0) at uvm_fault_upper_lookup+0x327 uvm_fault(fffffd806e0393a0,954def4c000,0,1) at uvm_fault+0x159 sys/uvm/uvm_fault.c:673 upageflttrap(ffff80002a3cccc0,954def4cd10) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a3cccc0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x705c84afe820, count: -13 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(ffff8000015cc030,9,0) at witness_checkorder+0x1b4 rw_do_enter_write(ffff8000015cc018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff8000015cc000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002a361dc0) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff80003c4dea68,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff80003c4dea68,ffff80002a472670,ffff80002a4725c0) at sys_exit+0x1a syscall(ffff80002a472670) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a472670) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72d2791a7520, count: -9