uvm_fault(0xfffffd8069b90b90, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND 64398 78097 0 0x2 0 0 syz-executor dt_ioctl_record_stop(ffff800001594000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,1,2000,ffff80003bc3bcb8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003bc3bcb8) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c453100) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80641f9008,1,fffffd80097fb680,ffff80003bc3bcb8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b939ae0,ffff80003bc3bcb8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b939ae0,ffff80003bc3bcb8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b939ae0,ffff80003bc3bcb8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b939ae0,ffff80003bc3bcb8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003bc3bcb8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003bc3bcb8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003bc3bcb8,ffff80003c453470,ffff80003c4533c0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c453470) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c453470) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7192ca146300, count: 3 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd8069b90b90, 0x0, 0, 1) -> e ddb{1}> trace dt_ioctl_record_stop(ffff800001594000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,1,2000,ffff80003bc3bcb8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003bc3bcb8) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c453100) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80641f9008,1,fffffd80097fb680,ffff80003bc3bcb8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b939ae0,ffff80003bc3bcb8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b939ae0,ffff80003bc3bcb8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b939ae0,ffff80003bc3bcb8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b939ae0,ffff80003bc3bcb8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003bc3bcb8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003bc3bcb8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003bc3bcb8,ffff80003c453470,ffff80003c4533c0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c453470) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c453470) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7192ca146300, count: -12 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c453030 rbx 0x1 rdx 0 rcx 0xffff80003bc3bcb8 rax 0xffffffff837d4f80 dt_prov_static r8 0x9 r9 0x1 r10 0x5f97092f4f8498fa r11 0x74414faa9b3ab68 r12 0 r13 0 r14 0 r15 0xffff80000160fc00 rip 0xffffffff81c007b8 dt_ioctl_record_stop+0x108 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff80003c453000 ss 0x10 dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 ddb{1}> show proc PROC (syz-executor) tid=440381 pid=79836 tcnt=0 stat=onproc flags process=1018 proc=2000 runpri=32, usrpri=83, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003bc3bcb8 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003c440558,0xffff80003c441a28 process=0xffff80003b025d00 user=0xffff80003c44e000, vmspace=0xfffffd8069b90b90 estcpu=33, cpticks=15, pctcpu=0.5, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 67362 89200 78097 0 2 0 syz-executor 67362 414087 78097 0 2 0x4000000 syz-executor 42174 284446 46329 0 2 0 syz-executor 4031 105393 65233 0 2 0 syz-executor 4031 47282 65233 0 3 0x4000080 fsleep syz-executor 85217 220149 79122 0 2 0 syz-executor 85217 178033 79122 0 3 0x4000080 fsleep syz-executor 85217 39204 79122 0 3 0x4000080 fsleep syz-executor 22124 490217 49344 0 3 0x3000 suspend syz-executor 22124 403476 49344 0 2 0x4081000 syz-executor 84093 445356 1 0 3 0x100083 ttyopn getty 8248 16470 0 0 3 0x14280 nfsidl nfsio 3880 64400 0 0 3 0x14280 nfsidl nfsio 82297 227357 0 0 3 0x14280 nfsidl nfsio 41359 73981 0 0 3 0x14280 nfsidl nfsio 66392 63448 0 0 3 0x14280 nfsidl nfsio 5912 443347 0 0 3 0x14280 nfsidl nfsio 74805 26167 0 0 3 0x14280 nfsidl nfsio 66724 97212 0 0 3 0x14280 nfsidl nfsio 99378 520702 0 0 3 0x14280 nfsidl nfsio 66791 349974 0 0 3 0x14280 nfsidl nfsio 54662 269197 0 0 3 0x14280 nfsidl nfsio 17494 102673 0 0 3 0x14280 nfsidl nfsio 79264 215479 0 0 3 0x14280 nfsidl nfsio 90789 255669 0 0 3 0x14280 nfsidl nfsio 41941 232880 0 0 3 0x14280 nfsidl nfsio 38760 336606 0 0 3 0x14280 nfsidl nfsio 79951 491116 0 0 3 0x14280 nfsidl nfsio 22690 384477 0 0 3 0x14280 nfsidl nfsio 81264 362121 0 0 3 0x14280 nfsidl nfsio 30412 506965 0 0 3 0x14280 nfsidl nfsio 87610 384334 0 0 3 0x14200 bored sosplice 41056 223496 11943 0 3 0x82 piperd syz-executor 65233 517778 11943 0 3 0x82 nanoslp syz-executor 43896 475318 11943 0 3 0x82 piperd syz-executor 89912 186709 11943 0 3 0x82 nanoslp syz-executor 79122 268742 11943 0 3 0x82 nanoslp syz-executor 78097 64398 11943 0 7 0x2 syz-executor 49344 439573 11943 0 3 0x82 nanoslp syz-executor 46329 350209 11943 0 3 0x82 nanoslp syz-executor 11943 41450 29284 0 2 0x2 syz-executor 29284 289028 65049 0 3 0x10008a sigsusp ksh 65049 58911 11995 0 3 0x98 kqread sshd-session 11995 82066 4112 0 3 0x92 kqread sshd-session 4112 459815 1 0 3 0x88 kqread sshd 53123 57209 23965 74 3 0x1100092 bpf pflogd 23965 153609 1 0 3 0x80 sbwait pflogd 64048 344852 95946 73 3 0x1100090 kqread syslogd 95946 75027 1 0 3 0x100082 sbwait syslogd 7468 5851 1 0 3 0x100080 kqread resolvd 8764 484809 0 0 3 0x14200 bored smr 19665 493090 0 0 2 0x14200 zerothread 13632 290201 0 0 3 0x14200 aiodoned aiodoned 24477 192236 0 0 3 0x14200 syncer update 19229 228587 0 0 3 0x14200 cleaner cleaner 39131 370349 0 0 2 0x14200 reaper 68459 388522 0 0 3 0x14200 pgdaemon pagedaemon 92780 386060 0 0 3 0x14200 bored viomb 13129 88277 0 0 3 0x40014200 acpi0 acpi0 17878 236196 0 0 3 0x40014200 idle1 22135 64929 0 0 3 0x14200 bored softnet7 14500 236231 0 0 3 0x14200 bored softnet6 74663 247819 0 0 3 0x14200 bored softnet5 11476 113835 0 0 3 0x14200 bored softnet4 15238 148217 0 0 3 0x14200 bored softnet3 57140 519563 0 0 3 0x14200 bored softnet2 86443 410116 0 0 3 0x14200 bored softnet1 412 418366 0 0 3 0x14200 bored softnet0 95940 105664 0 0 3 0x14200 bored systqmp 17245 293617 0 0 3 0x14200 bored systq 62114 461669 0 0 3 0x14200 tmoslp softclockmp 40939 191000 0 0 3 0x40014200 tmoslp softclock 21712 255690 0 0 3 0x40014200 idle0 1 345081 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 39131 (reaper) thread 0xffff8000ffffc538 (370349) exclusive rwlock kmmaplk r = 0 (0xffffffff8397eb28) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10228 11053K 12316K 166960K 12384 0 pcb 18 18K 20K 166960K 221 0 rtable 193 8K 8K 166960K 507 0 pf 40 18K 20K 166960K 122 0 ifaddr 41 7K 8K 166960K 91 0 ifgroup 66 2K 3K 166960K 152 0 sysctl 4 1K 9K 166960K 48 0 counters 72 37K 38K 166960K 160 0 ioctlops 0 0K 4K 166960K 1624 0 iov 0 0K 18K 166960K 76 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1494 94K 94K 166960K 2005 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 25 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 236K 166960K 798 0 sigio 0 0K 0K 166960K 15 0 proc 66 83K 147K 166960K 594 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 1 0K 0K 166960K 100 0 in_multi 84 6K 7K 166960K 136 0 ether_multi 1 0K 0K 166960K 6 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 133 599K 599K 166960K 133 0 exec 0 0K 1K 166960K 440 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 198 125K 165K 166960K 9176 0 UVM aobj 23 5K 5K 166960K 26 0 pinsyscall 35 70K 104K 166960K 1897 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 73 0 NDP 14 0K 2K 166960K 59 0 temp 77 8652K 8766K 166960K 32422 0 kqueue 7 12K 26K 166960K 152 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 109 0 107 2 1 1 2 0 8 0 rtentry 176 120 0 44 5 0 5 5 0 8 0 unpcb 144 690 0 680 9 5 4 6 0 8 3 syncache 336 9 0 9 4 3 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 301 0 295 11 4 7 7 0 8 6 arp 128 13 0 4 1 0 1 1 0 8 0 inpcb 328 1110 0 1102 12 5 7 10 0 8 5 nd6 144 20 0 4 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 34 0 34 1 0 1 1 0 8 1 pppxif 1504 8 0 8 2 1 1 1 0 8 1 pffrag 232 8 0 3 1 0 1 1 0 482 0 pffrnode 88 8 0 3 1 0 1 1 0 8 0 pffrent 40 16 0 11 1 0 1 1 0 8 0 pfosfp 40 1430 0 1006 5 0 5 5 0 8 0 pfosfpen 112 1430 0 714 21 0 21 21 0 8 0 pfstitem 24 55 0 22 1 0 1 1 0 8 0 pfstkey 128 55 0 22 2 0 2 2 0 8 0 pfstate 384 55 0 22 5 0 5 5 0 8 0 pfrule 1344 26 0 20 2 1 1 2 0 8 0 rttmr 136 2 0 2 2 2 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 586 0 204 30 5 25 30 0 8 0 art_table 40 588 0 204 5 0 5 5 0 8 0 art_node 32 120 0 52 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 5 2 1 1 1 0 8 0 semapl 112 20 0 10 1 0 1 1 0 8 0 shmpl 112 23 0 3 1 0 1 1 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 2852 0 1347 96 0 96 96 0 8 0 ffsino 296 2852 0 1347 118 0 118 118 0 8 0 nchpl 144 3941 0 2253 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 uvmvnodes 80 3312 0 0 68 0 68 68 0 8 0 vnodes 216 3312 0 0 184 0 184 184 0 8 0 namei 1024 13465 0 13465 2 1 1 2 0 8 1 percpumem 16 95 0 44 1 0 1 1 0 8 0 kstatmem 264 92 0 58 4 1 3 3 0 8 0 scsiplug 72 4 0 4 2 1 1 1 0 8 1 scxspl 216 13881 0 13881 8 7 1 6 1 8 1 plimitpl 152 369 0 350 1 0 1 1 0 8 0 sigapl 424 1117 0 1047 9 0 9 9 0 8 0 knotepl 120 579 0 0 18 0 18 18 0 8 0 kqueuepl 224 319 0 313 5 4 1 5 0 8 0 pipepl 344 189 0 162 6 3 3 6 0 8 0 fdescpl 528 1073 0 1046 3 0 3 3 0 8 0 filepl 160 6731 0 6522 22 7 15 18 0 8 5 lockfpl 104 259 0 258 1 0 1 1 0 8 0 lockfspl 48 119 0 118 1 0 1 1 0 8 0 sessionpl 144 27 0 19 1 0 1 1 0 8 0 pgrppl 48 76 0 60 1 0 1 1 0 8 0 ucredpl 104 906 0 895 1 0 1 1 0 8 0 zombiepl 144 1447 0 1445 1 0 1 1 0 8 0 processpl 1232 1117 0 1047 6 0 6 6 0 8 0 procpl 664 2311 0 2234 9 1 8 9 0 8 0 sosppl 168 4 0 4 2 1 1 1 0 8 1 sockpl 752 1929 0 1909 24 14 10 20 0 8 7 mcl64k 65536 16 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 15 1 14 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 45 0 0 6 0 6 6 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 250 0 0 16 0 16 16 0 8 0 bufpl 280 6782 0 639 440 0 440 440 0 8 0 anonpl 32 9583 0 0 78 0 78 78 0 246 0 amapchunkpl 152 30446 0 30024 37 8 29 31 0 158 7 amappl16 200 4558 0 4528 43 28 15 22 0 8 8 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 122 0 113 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 1725 0 1697 4 1 3 3 0 8 0 amappl11 160 53 0 44 1 0 1 1 0 8 0 amappl10 152 18 0 18 1 1 0 1 0 8 0 amappl9 144 248 0 248 1 1 0 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 111 0 101 1 0 1 1 0 8 0 amappl6 120 187 0 184 1 0 1 1 0 8 0 amappl5 112 125 0 118 1 0 1 1 0 8 0 amappl4 104 316 0 297 1 0 1 1 0 8 0 amappl3 96 5750 0 5656 4 0 4 4 0 8 0 amappl2 88 675 0 629 2 0 2 2 0 8 0 amappl1 80 11905 0 11401 17 2 15 15 0 8 0 amappl 88 8366 0 8220 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 128 254 0 254 2 2 0 1 0 8 0 dma64 64 10 0 10 3 2 1 1 0 8 1 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 25 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1074 0 1047 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1074 0 1047 1 0 1 1 0 8 0 vmmpekpl 168 10808 0 10771 3 0 3 3 0 8 0 vmmpepl 168 74928 0 73303 101 6 95 101 0 357 6 vmsppl 488 1073 0 1047 6 2 4 5 0 8 0 rwobjpl 80 26393 0 22291 93 0 93 93 0 8 2 pdppl 4096 2156 0 2094 110 42 68 86 0 8 6 pvpl 32 17509 0 0 142 0 142 142 0 265 0 pmappl 256 1073 0 1047 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 305 0 58 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837e3ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x18 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x18 sys/dev/kcov.c:153 syscall(ffff80002a35fb10) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80002a35fb10) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7061452ed470, count: 9 ddb{0}> trace x86_ipi_db(ffffffff837e3ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x18 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x18 sys/dev/kcov.c:153 syscall(ffff80002a35fb10) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80002a35fb10) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7061452ed470, count: -6 ddb{0}> machine ddbcpu 1 Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 dt_ioctl_record_stop(ffff800001594000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,1,2000,ffff80003bc3bcb8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003bc3bcb8) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c453100) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80641f9008,1,fffffd80097fb680,ffff80003bc3bcb8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b939ae0,ffff80003bc3bcb8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b939ae0,ffff80003bc3bcb8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b939ae0,ffff80003bc3bcb8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b939ae0,ffff80003bc3bcb8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003bc3bcb8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003bc3bcb8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003bc3bcb8,ffff80003c453470,ffff80003c4533c0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c453470) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c453470) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7192ca146300, count: 3 ddb{1}> trace dt_ioctl_record_stop(ffff800001594000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,1,2000,ffff80003bc3bcb8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003bc3bcb8) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c453100) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80641f9008,1,fffffd80097fb680,ffff80003bc3bcb8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b939ae0,ffff80003bc3bcb8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b939ae0,ffff80003bc3bcb8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b939ae0,ffff80003bc3bcb8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b939ae0,ffff80003bc3bcb8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003bc3bcb8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003bc3bcb8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003bc3bcb8,ffff80003c453470,ffff80003c4533c0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c453470) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c453470) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7192ca146300, count: -12