uvm_fault(0xfffffd806b9ca9a0, 0x48, 0, 1) -> e kernel: page fault trap, code=0 Stopped at witness_checkorder+0xb5: movl 0x20(%r14),%r15d TID PID UID PRFLAGS PFLAGS CPU COMMAND witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x4a sys/kern/kern_lock.c:260 clockintr_unbind(ffff8000014d8f30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000147f000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(11e5f,81,2000,ffff80003c47cfc8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c47cfc8) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002effafd0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806b857948,81,fffffd80097fb6e8,ffff80003c47cfc8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd805d9cf270,ffff80003c47cfc8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd805d9cf270,ffff80003c47cfc8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd805d9cf270,ffff80003c47cfc8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd805d9cf270,ffff80003c47cfc8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c47cfc8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c47cfc8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c47cfc8,ffff80002effb340,ffff80002effb290) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002effb340) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002effb340) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 end trace frame: 0xffff80002effb3c0, count: 0 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd806b9ca9a0, 0x48, 0, 1) -> e ddb{0}> trace witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x4a sys/kern/kern_lock.c:260 clockintr_unbind(ffff8000014d8f30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000147f000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(11e5f,81,2000,ffff80003c47cfc8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c47cfc8) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002effafd0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806b857948,81,fffffd80097fb6e8,ffff80003c47cfc8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd805d9cf270,ffff80003c47cfc8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd805d9cf270,ffff80003c47cfc8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd805d9cf270,ffff80003c47cfc8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd805d9cf270,ffff80003c47cfc8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c47cfc8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c47cfc8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c47cfc8,ffff80002effb340,ffff80002effb290) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002effb340) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002effb340) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x708e4dab70d0, count: -15 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002effae30 rbx 0 rdx 0 rcx 0xffff80003c47cfc8 rax 0xffffffff83812ffe cpu_info_full_primary+0x1ffe r8 0 r9 0 r10 0x8706c9b66f3946f4 r11 0xa0f857795da8ce5d r12 0xfe r13 0x9 r14 0x28 r15 0 rip 0xffffffff81f9cc65 witness_checkorder+0xb5 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002effad90 ss 0x10 witness_checkorder+0xb5: movl 0x20(%r14),%r15d ddb{0}> show proc PROC (syz-executor) tid=262674 pid=66678 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=83, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c47cfc8 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff800034c08a80,0xffff80003c47c048 process=0xffff80003a8253a0 user=0xffff80002eff6000, vmspace=0xfffffd806b9ca9a0 estcpu=33, cpticks=3, pctcpu=0.2, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 20005 266012 35986 0 2 0 syz-executor 20005 197707 35986 0 3 0x4000080 fsleep syz-executor 47647 237191 48384 0 2 0 syz-executor 47647 42895 48384 0 2 0x4000000 syz-executor 84472 408327 6340 0 2 0 syz-executor 84472 145427 6340 0 2 0x4000000 syz-executor 76729 7539 50951 0 2 0 syz-executor 76729 522719 50951 0 2 0x4000000 syz-executor 72604 351115 0 0 3 0x14280 nfsidl nfsio 8910 445634 0 0 3 0x14280 nfsidl nfsio 66716 9403 0 0 3 0x14280 nfsidl nfsio 89742 60066 0 0 3 0x14280 nfsidl nfsio 88306 489316 0 0 3 0x14280 nfsidl nfsio 31619 245724 0 0 3 0x14280 nfsidl nfsio 63084 17317 0 0 3 0x14280 nfsidl nfsio 59290 268426 0 0 3 0x14280 nfsidl nfsio 57576 196767 0 0 3 0x14280 nfsidl nfsio 27576 176851 0 0 3 0x14280 nfsidl nfsio 7834 371642 0 0 3 0x14280 nfsidl nfsio 35966 301663 0 0 3 0x14280 nfsidl nfsio 64447 186297 0 0 3 0x14280 nfsidl nfsio 1790 111924 0 0 3 0x14280 nfsidl nfsio 80684 115976 0 0 3 0x14280 nfsidl nfsio 82453 389927 0 0 3 0x14280 nfsidl nfsio 38389 396056 0 0 3 0x14280 nfsidl nfsio 6259 474978 0 0 3 0x14280 nfsidl nfsio 90687 519920 0 0 3 0x14280 nfsidl nfsio 95398 94420 0 0 3 0x14280 nfsidl nfsio 18270 176322 0 0 3 0x14200 bored sosplice 48384 363378 45829 0 2 0x3 syz-executor 34496 348416 45829 0 2 0x3 syz-executor 26221 342197 45829 0 2 0x2 syz-executor 50951 393529 45829 0 2 0x3 syz-executor 35986 24956 45829 0 3 0x82 nanoslp syz-executor 32425 52778 45829 0 2 0x2 syz-executor 6340 24970 45829 0 2 0x3 syz-executor 15269 522396 45829 0 2 0x2 syz-executor 45829 42201 37239 0 3 0x82 kqread syz-executor 37239 207617 34104 0 3 0x10008a sigsusp ksh 34104 294862 35768 0 3 0x98 kqread sshd-session 35768 148913 31469 0 3 0x92 kqread sshd-session 74918 167685 1 0 3 0x100083 ttyin getty 31469 106626 1 0 3 0x88 kqread sshd 94000 458701 48704 74 3 0x1100092 bpf pflogd 48704 383713 1 0 3 0x80 sbwait pflogd 69816 480871 65786 73 3 0x1100090 kqread syslogd 65786 465877 1 0 3 0x100082 sbwait syslogd 63992 445444 1 0 3 0x100080 kqread resolvd 98701 333039 96173 77 3 0x100092 kqread dhcpleased 50421 366358 96173 77 3 0x100092 kqread dhcpleased 96173 511888 1 0 3 0x80 kqread dhcpleased 57318 496731 0 0 3 0x14200 bored smr 24091 49267 0 0 2 0x14200 zerothread 29000 32484 0 0 3 0x14200 aiodoned aiodoned 29811 484417 0 0 3 0x14200 syncer update 73738 314791 0 0 3 0x14200 cleaner cleaner 66762 218958 0 0 2 0x14200 reaper 26976 329525 0 0 3 0x14200 pgdaemon pagedaemon 86959 202499 0 0 3 0x14200 bored viomb 24843 516743 0 0 3 0x40014200 acpi0 acpi0 70235 5553 0 0 7 0x40014200 idle1 87984 147167 0 0 3 0x14200 bored softnet7 96743 350901 0 0 3 0x14200 bored softnet6 73840 107772 0 0 3 0x14200 bored softnet5 21094 13769 0 0 3 0x14200 bored softnet4 67526 213444 0 0 3 0x14200 bored softnet3 86812 429914 0 0 3 0x14200 bored softnet2 8610 286412 0 0 3 0x14200 bored softnet1 2416 72428 0 0 3 0x14200 bored softnet0 21447 168878 0 0 3 0x14200 bored systqmp 84496 152148 0 0 3 0x14200 bored systq 17054 83206 0 0 3 0x14200 tmoslp softclockmp 41330 515487 0 0 3 0x40014200 tmoslp softclock 41811 221990 0 0 3 0x40014200 idle0 1 272346 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 47647 (syz-executor) thread 0xffff80002f000a90 (42895) exclusive rwlock vmmaplk r = 0 (0xfffffd806b9ca118) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvm_map_pageable+0x183 sys/uvm/uvm_map.c:2214 #4 sys_mlock+0x23d sys/uvm/uvm_mmap.c:849 #5 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #6 Xsyscall+0x128 Process 15269 (syz-executor) thread 0xffff80002a2b8548 (522396) exclusive rwlock vmmaplk r = 0 (0xfffffd806b9ca6d0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvmspace_fork+0x12b sys/uvm/uvm_map.c:3738 #4 process_new+0x577 sys/kern/kern_fork.c:282 #5 fork1+0x3f6 sys/kern/kern_fork.c:-1 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xfffffd800b0fb2f8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvmspace_fork+0x44 sys/uvm/uvm_map.c:3729 #4 process_new+0x577 sys/kern/kern_fork.c:282 #5 fork1+0x3f6 sys/kern/kern_fork.c:-1 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 Process 66762 (reaper) thread 0xffff8000ffffcd00 (218958) exclusive rwlock kmmaplk r = 0 (0xffffffff83936ca8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvm_unmap+0x7d sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:831 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 #6 reaper+0x1aa sys/kern/kern_exit.c:493 #7 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10249 11128K 11350K 166960K 11804 0 pcb 17 13K 14K 166960K 141 0 rtable 215 7K 7K 166960K 392 0 pf 37 18K 24K 166960K 119 0 ifaddr 107 23K 24K 166960K 131 0 ifgroup 55 2K 2K 166960K 125 0 sysctl 4 1K 9K 166960K 9 0 counters 68 36K 37K 166960K 236 0 ioctlops 0 0K 4K 166960K 1619 0 iov 0 0K 16K 166960K 16 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1434 90K 90K 166960K 1722 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 16 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 240K 166960K 555 0 sigio 0 0K 0K 166960K 9 0 proc 73 115K 164K 166960K 577 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 51 0 in_multi 98 7K 7K 166960K 110 0 ether_multi 1 0K 0K 166960K 5 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 223 996K 996K 166960K 223 0 exec 0 0K 1K 166960K 410 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 220 159K 174K 166960K 6861 0 UVM aobj 12 2K 2K 166960K 13 0 pinsyscall 42 84K 103K 166960K 1651 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 44 0 NDP 12 0K 1K 166960K 45 0 temp 58 8646K 8714K 166960K 20221 0 kqueue 13 20K 28K 166960K 94 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 58 0 55 1 0 1 1 0 8 0 rtentry 176 144 0 50 5 0 5 5 0 8 0 unpcb 144 493 0 476 9 6 3 6 0 8 2 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 736 192 0 187 7 1 6 7 0 8 5 arp 128 21 0 11 1 0 1 1 0 8 0 inpcb 328 566 0 555 9 3 6 7 0 8 4 nd6 144 26 0 1 1 0 1 1 0 8 0 pkpcb 40 7 0 7 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 72 0 72 2 1 1 1 0 8 1 pppxif 1504 1 0 1 1 0 1 1 0 8 1 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pffrag 232 7 0 3 1 0 1 1 0 482 0 pffrnode 88 7 0 3 1 0 1 1 0 8 0 pffrent 40 10 0 6 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 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 3 0 0 1 0 1 1 0 8 0 pfstitem 24 46 0 20 1 0 1 1 0 8 0 pfstkey 128 46 0 20 2 0 2 2 0 8 0 pfstate 384 45 0 20 5 0 5 5 0 8 0 pfrule 1344 27 0 21 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 544 0 83 30 0 30 30 0 8 0 art_table 40 546 0 83 5 0 5 5 0 8 0 art_node 32 144 0 61 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 7 1 0 1 1 0 8 0 semupl 112 2 0 2 2 1 1 1 0 8 1 semapl 112 13 0 3 1 0 1 1 0 8 0 shmpl 112 10 0 1 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2262 0 754 96 0 96 96 0 8 0 ffsino 296 2262 0 754 118 1 117 118 0 8 0 nchpl 144 3121 0 2534 63 39 24 63 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 uvmvnodes 80 2597 0 0 53 0 53 53 0 8 0 vnodes 216 2597 0 0 145 0 145 145 0 8 0 namei 1024 10100 0 10099 4 3 1 2 0 8 0 percpumem 16 133 0 84 1 0 1 1 0 8 0 kstatmem 264 60 0 34 3 0 3 3 0 8 1 scsiplug 72 3 0 3 2 1 1 1 0 8 1 scxspl 216 31162 0 31162 11 9 2 8 1 8 2 plimitpl 152 224 0 206 1 0 1 1 0 8 0 sigapl 424 876 0 803 9 0 9 9 0 8 0 knotepl 120 515 0 0 16 0 16 16 0 8 0 kqueuepl 224 195 0 186 3 2 1 3 0 8 0 pipepl 344 209 0 182 9 6 3 9 0 8 0 fdescpl 528 832 0 801 3 0 3 3 0 8 0 filepl 160 4829 0 4605 22 7 15 16 0 8 4 lockfpl 104 161 0 158 1 0 1 1 0 8 0 lockfspl 48 72 0 69 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 32 0 15 1 0 1 1 0 8 0 ucredpl 104 606 0 591 1 0 1 1 0 8 0 zombiepl 144 895 0 894 3 2 1 1 0 8 0 processpl 1248 877 0 803 6 0 6 6 0 8 0 procpl 664 1606 0 1527 8 0 8 8 0 8 0 sosppl 168 6 0 6 2 1 1 1 0 8 1 sockpl 752 1133 0 1102 30 19 11 17 0 8 6 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 12 0 0 2 0 2 2 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 126 0 0 16 0 16 16 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 25 0 0 4 0 4 4 0 8 0 mtagpl 96 41 0 0 1 0 1 1 0 8 0 mbufpl 256 240 0 0 15 0 15 15 0 8 0 bufpl 280 14111 0 7968 440 0 440 440 0 8 0 anonpl 32 17413 0 0 141 0 141 141 0 246 0 amapchunkpl 152 22815 0 22386 38 8 30 31 0 158 7 amappl16 200 4911 0 4873 58 40 18 46 0 8 4 amappl15 192 10 0 10 1 1 0 1 0 8 0 amappl14 184 114 0 102 1 0 1 1 0 8 0 amappl13 176 5 0 4 1 0 1 1 0 8 0 amappl12 168 1486 0 1457 4 2 2 3 0 8 0 amappl11 160 54 0 40 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 252 0 252 1 1 0 1 0 8 0 amappl8 136 50 0 48 1 0 1 1 0 8 0 amappl7 128 111 0 99 1 0 1 1 0 8 0 amappl6 120 174 0 171 1 0 1 1 0 8 0 amappl5 112 135 0 126 1 0 1 1 0 8 0 amappl4 104 302 0 281 1 0 1 1 0 8 0 amappl3 96 4178 0 4080 5 1 4 4 0 8 0 amappl2 88 646 0 583 2 0 2 2 0 8 0 amappl1 80 10068 0 9472 14 1 13 14 0 8 0 amappl 88 6095 0 5946 5 0 5 5 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 12 0 1 1 0 1 1 0 8 0 uaddrrnd 24 831 0 801 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 831 0 801 1 0 1 1 0 8 0 vmmpekpl 168 8507 0 8471 2 0 2 2 0 8 0 vmmpepl 168 60356 0 58467 131 28 103 127 0 357 3 vmsppl 488 830 0 801 5 1 4 5 0 8 0 rwobjpl 80 22620 0 19095 78 1 77 77 0 8 0 pdppl 4096 1669 0 1602 103 32 71 85 0 8 4 pvpl 32 23448 0 0 190 0 190 190 0 265 0 pmappl 256 830 0 801 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 293 0 39 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x4a sys/kern/kern_lock.c:260 clockintr_unbind(ffff8000014d8f30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000147f000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(11e5f,81,2000,ffff80003c47cfc8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c47cfc8) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002effafd0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806b857948,81,fffffd80097fb6e8,ffff80003c47cfc8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd805d9cf270,ffff80003c47cfc8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd805d9cf270,ffff80003c47cfc8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd805d9cf270,ffff80003c47cfc8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd805d9cf270,ffff80003c47cfc8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c47cfc8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c47cfc8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c47cfc8,ffff80002effb340,ffff80002effb290) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002effb340) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002effb340) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x708e4dab70d0, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299edff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299edff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5