uvm_fault(0xfffffd807e365d50, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 TID PID UID PRFLAGS PFLAGS CPU COMMAND dt_ioctl_record_stop(ffff800000afb000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff80003c451218) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c451218) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002d835410) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd807b73de80,81,fffffd80097fb2d8,ffff80003c451218) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806baaeb80,ffff80003c451218) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806baaeb80,ffff80003c451218) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806baaeb80,ffff80003c451218) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806baaeb80,ffff80003c451218) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80003c451218) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80003c451218,0,0,1) at exit1+0x5a0 sys/kern/kern_exit.c:215 sys_exit(ffff80003c451218,ffff80002d835780,ffff80002d8356d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002d835780) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002d835780) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77e15dd56f60, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd807e365d50, 0x0, 0, 1) -> e ddb{0}> trace dt_ioctl_record_stop(ffff800000afb000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff80003c451218) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c451218) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002d835410) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd807b73de80,81,fffffd80097fb2d8,ffff80003c451218) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806baaeb80,ffff80003c451218) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806baaeb80,ffff80003c451218) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806baaeb80,ffff80003c451218) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806baaeb80,ffff80003c451218) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80003c451218) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80003c451218,0,0,1) at exit1+0x5a0 sys/kern/kern_exit.c:215 sys_exit(ffff80003c451218,ffff80002d835780,ffff80002d8356d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002d835780) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002d835780) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77e15dd56f60, count: -12 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002d835340 rbx 0xffffffff81616370 dtclose rdx 0 rcx 0xffff80003c451218 rax 0xffffffff837fd930 dt_prov_syscall r8 0 r9 0 r10 0x4be1c0b465d8de2b r11 0x751fc71a9ebf4c5b r12 0xffff800000b39000 r13 0 r14 0 r15 0xffff800001495800 rip 0xffffffff81616750 dt_ioctl_record_stop+0xf0 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff80002d835310 ss 0x10 dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 ddb{0}> show proc PROC (syz-executor) tid=413338 pid=47496 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c451218 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000ffffd1f8,0xffff80003c450038 process=0xffff80002a396bb0 user=0xffff80002d830000, vmspace=0xfffffd807e365d50 estcpu=34, cpticks=0, pctcpu=0.5, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 62773 62137 4777 0 2 0 syz-executor 62773 410871 4777 0 3 0x4000080 fsleep syz-executor 40447 274717 16524 60928 2 0x10 syz-executor 40447 352352 16524 60928 3 0x4000090 fsleep syz-executor 30865 337026 65801 0 2 0 syz-executor 30865 353187 65801 0 2 0x4000000 syz-executor 30865 487185 65801 0 3 0x4000080 fsleep syz-executor 62605 424874 97798 0 3 0x80 nanoslp syz-executor 62605 168863 97798 0 3 0x4000080 fsleep syz-executor 62605 354746 97798 0 3 0x4000080 ttyopn syz-executor 69267 91843 40003 0 2 0 syz-executor 69267 357621 40003 0 2 0x4000000 syz-executor 69267 95323 40003 0 3 0x4000080 fsleep syz-executor 55615 138221 937 0 3 0x80 nanoslp syz-executor 55615 471492 937 0 3 0x4000080 kqsel syz-executor 55615 15543 937 0 3 0x4000080 kqsel syz-executor 55615 402296 937 0 3 0x4000080 fsleep syz-executor 55615 394784 937 0 2 0x4000000 syz-executor 69523 77870 0 0 3 0x14200 acct acct 15068 39330 61207 0 3 0x82 nanoslp syz-executor 31465 326422 61207 0 3 0x82 wait syz-executor 77185 380371 1 0 3 0x100083 ttyin getty 937 479094 61207 0 3 0x82 nanoslp syz-executor 97798 317976 61207 0 3 0x82 nanoslp syz-executor 40003 259675 61207 0 3 0x82 nanoslp syz-executor 41938 456052 0 0 3 0x14280 nfsidl nfsio 41987 504533 0 0 3 0x14280 nfsidl nfsio 9571 233470 0 0 3 0x14280 nfsidl nfsio 95338 427180 0 0 3 0x14280 nfsidl nfsio 2157 160806 0 0 3 0x14280 nfsidl nfsio 41070 111549 0 0 3 0x14280 nfsidl nfsio 28414 82689 0 0 3 0x14280 nfsidl nfsio 46796 507167 0 0 3 0x14280 nfsidl nfsio 20753 450553 0 0 3 0x14280 nfsidl nfsio 38969 49131 0 0 3 0x14280 nfsidl nfsio 90936 149353 0 0 3 0x14280 nfsidl nfsio 66528 183753 0 0 3 0x14280 nfsidl nfsio 8165 55700 0 0 3 0x14280 nfsidl nfsio 93949 507198 0 0 3 0x14280 nfsidl nfsio 78776 397795 0 0 3 0x14280 nfsidl nfsio 41979 322775 0 0 3 0x14280 nfsidl nfsio 1237 441783 0 0 3 0x14280 nfsidl nfsio 1555 354496 0 0 3 0x14280 nfsidl nfsio 31937 43255 0 0 3 0x14280 nfsidl nfsio 22246 370478 0 0 3 0x14280 nfsidl nfsio 16524 34088 61207 0 3 0x82 nanoslp syz-executor 4777 260512 61207 0 3 0x82 nanoslp syz-executor 65801 381931 61207 0 3 0x82 nanoslp syz-executor 62572 221581 0 0 3 0x14200 bored sosplice 61207 521736 13080 0 3 0x82 kqread syz-executor 13080 490605 81342 0 3 0x10008a sigsusp ksh 81342 53065 85568 0 3 0x98 kqread sshd-session 85568 67662 42240 0 3 0x92 kqread sshd-session 42240 510989 1 0 3 0x88 kqread sshd 30641 366210 29342 74 3 0x1100092 bpf pflogd 29342 460095 1 0 3 0x80 sbwait pflogd 80886 52153 23389 73 3 0x1100090 kqread syslogd 23389 33471 1 0 3 0x100082 sbwait syslogd 61705 245561 1 0 3 0x100080 kqread resolvd 34643 298058 23447 77 3 0x100092 kqread dhcpleased 32683 322350 23447 77 3 0x100092 kqread dhcpleased 23447 259453 1 0 3 0x80 kqread dhcpleased 78091 257415 0 0 3 0x14200 bored smr 18547 376106 0 0 2 0x14200 zerothread 110 279803 0 0 3 0x14200 aiodoned aiodoned 50840 299136 0 0 3 0x14200 syncer update 9775 495779 0 0 3 0x14200 cleaner cleaner 9015 39109 0 0 2 0x14200 reaper 23722 215841 0 0 3 0x14200 pgdaemon pagedaemon 94719 56725 0 0 3 0x14200 bored viomb 34913 118524 0 0 3 0x40014200 acpi0 acpi0 13053 168695 0 0 7 0x40014200 idle1 93307 178871 0 0 3 0x14200 bored softnet3 75817 481388 0 0 3 0x14200 bored softnet2 50703 67448 0 0 3 0x14200 bored softnet1 71223 466238 0 0 3 0x14200 bored softnet0 28576 282220 0 0 3 0x14200 bored systqmp 28866 391276 0 0 3 0x14200 bored systq 37055 352602 0 0 3 0x14200 tmoslp softclockmp 21294 437295 0 0 3 0x40014200 tmoslp softclock 28291 154127 0 0 3 0x40014200 idle0 1 386616 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 30865 (syz-executor) thread 0xffff80003c433740 (353187) exclusive rrwlock inode r = 0 (0xfffffd806d957ae8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:606 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #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 vn_open+0x1f4 sys/kern/vfs_vnops.c:107 #8 doopenat+0x32e sys/kern/vfs_syscalls.c:1137 #9 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #10 Xsyscall+0x128 Process 69267 (syz-executor) thread 0xffff80003c4322c0 (357621) exclusive rwlock unix r = 0 (0xffff80000156f9d8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #2 socreate+0x21d pru_attach sys/sys/protosw.h:-1 [inline] #2 socreate+0x21d sys/kern/uipc_socket.c:212 #3 sys_socket+0x124 sys/kern/uipc_syscalls.c:101 #4 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #5 Xsyscall+0x128 Process 9015 (reaper) thread 0xffff8000ffffc298 (39109) exclusive rwlock kmmaplk r = 0 (0xffffffff838d64a0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5148 #3 uvm_unmap+0x81 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:285 #6 reaper+0x1cb sys/kern/kern_exit.c:480 #7 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10223 11201K 11775K 166960K 16642 0 pcb 17 20K 22K 166960K 507 0 rtable 241 14K 15K 166960K 1018 0 pf 38 18K 22K 166960K 218 0 ifaddr 43 8K 8K 166960K 177 0 ifgroup 57 2K 2K 166960K 296 0 sysctl 4 1K 9K 166960K 19 0 counters 72 37K 38K 166960K 330 0 ioctlops 0 0K 4K 166960K 2001 0 iov 0 0K 28K 166960K 171 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1556 98K 98K 166960K 4507 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 10K 166960K 35 0 VM map 2 1K 1K 166960K 2 0 sem 27 16K 17K 166960K 119 0 dirhash 15 2K 2K 166960K 48 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 110K 166960K 2696 0 sigio 0 0K 0K 166960K 76 0 proc 75 103K 128K 166960K 1139 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 311 0 in_multi 96 7K 7K 166960K 326 0 ether_multi 1 0K 0K 166960K 26 0 mrt 1 0K 0K 166960K 13 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 1111 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 271 172K 187K 166960K 25597 0 UVM aobj 118 3K 3K 166960K 126 0 pinsyscall 43 86K 100K 166960K 4132 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 197 0 NDP 13 0K 2K 166960K 123 0 temp 79 8688K 8816K 166960K 102773 0 kqueue 14 20K 30K 166960K 441 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 120 202 0 198 1 0 1 1 0 8 0 rtentry 176 306 0 205 6 1 5 6 0 8 0 unpcb 144 1827 0 1809 20 18 2 6 0 8 1 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 1034 0 1028 25 24 1 11 0 8 0 arp 128 53 0 32 1 0 1 1 0 8 0 inpcb 384 3164 0 3152 53 51 2 15 0 8 0 nd6 144 70 0 45 3 1 2 2 0 8 0 pkpcb 40 21 0 21 7 7 0 1 0 8 0 kcovpl 48 21 0 13 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 90 0 88 2 1 1 1 0 8 0 pppxif 1504 15 0 15 5 4 1 1 0 8 1 pffrag 232 22 0 15 1 0 1 1 0 482 0 pffrnode 88 20 0 13 1 0 1 1 0 8 0 pffrent 40 48 0 41 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 2 0 1 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 2 0 1 1 0 1 1 0 8 0 pfstitem 24 172 0 90 1 0 1 1 0 8 0 pfstkey 128 172 0 90 3 0 3 3 0 8 0 pfstate 384 172 0 90 9 0 9 9 0 8 0 pfrule 1344 24 0 17 2 1 1 2 0 8 0 rttmr 136 3 0 3 3 3 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 1301 0 873 39 11 28 29 0 8 1 art_table 32 1304 0 873 4 0 4 4 0 8 0 art_node 16 299 0 211 1 0 1 1 0 8 0 sysvmsgpl 40 33 0 24 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 108 0 83 1 0 1 1 0 8 0 shmpl 112 123 0 8 4 0 4 4 0 8 0 dirhash 1024 40 0 22 3 0 3 3 0 8 0 dino2pl 256 5966 0 4434 96 0 96 96 0 8 0 ffsino 288 5966 0 4434 110 0 110 110 0 8 0 nchpl 144 9561 0 8989 64 39 25 64 0 8 0 rtmask 32 5 0 5 2 2 0 1 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 39079 0 39078 2 1 1 1 0 8 0 percpumem 16 180 0 129 1 0 1 1 0 8 0 kstatmem 264 162 0 134 4 1 3 3 0 8 0 scsiplug 72 14 0 14 8 7 1 1 0 8 1 scxspl 216 27592 0 27592 15 14 1 8 1 8 1 plimitpl 152 724 0 707 1 0 1 1 0 8 0 sigapl 424 3007 0 2935 11 2 9 9 0 8 0 knotepl 120 600 0 0 18 0 18 18 0 8 0 kqueuepl 224 1128 0 1115 14 13 1 5 0 8 0 pipepl 336 412 0 385 5 2 3 5 0 8 0 fdescpl 520 2941 0 2909 3 0 3 3 0 8 0 filepl 160 22475 0 22250 31 18 13 20 0 8 0 lockfpl 104 1003 0 1000 2 1 1 2 0 8 0 lockfspl 48 345 0 342 1 0 1 1 0 8 0 sessionpl 144 37 0 28 1 0 1 1 0 8 0 pgrppl 48 93 0 76 1 0 1 1 0 8 0 ucredpl 104 4444 0 4430 1 0 1 1 0 8 0 zombiepl 144 3929 0 3927 2 1 1 1 0 8 0 processpl 1240 3007 0 2935 6 0 6 6 0 8 0 procpl 656 7225 0 7140 8 0 8 8 0 8 0 srpgc 96 24 0 24 6 6 0 1 0 8 0 sosppl 168 4 0 4 3 2 1 1 0 8 1 sockpl 728 5344 0 5310 70 65 5 25 0 8 1 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 124 0 0 16 0 16 16 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 31 0 0 4 0 4 4 0 8 0 mtagpl 96 188 0 0 5 0 5 5 0 8 0 mbufpl 256 380 0 0 23 0 23 23 0 8 0 bufpl 280 8187 0 2045 439 0 439 439 0 8 0 anonpl 32 11537 0 0 93 0 93 93 0 246 0 amapchunkpl 152 86575 0 85934 51 26 25 34 0 158 0 amappl16 200 5412 0 5371 36 32 4 19 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 142 0 130 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 3801 0 3769 4 2 2 3 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 260 0 260 1 1 0 1 0 8 0 amappl8 136 93 0 90 1 0 1 1 0 8 0 amappl7 128 138 0 126 1 0 1 1 0 8 0 amappl6 120 315 0 311 1 0 1 1 0 8 0 amappl5 112 186 0 176 1 0 1 1 0 8 0 amappl4 104 373 0 352 1 0 1 1 0 8 0 amappl3 96 17980 0 17854 5 1 4 4 0 8 0 amappl2 88 907 0 843 2 0 2 2 0 8 0 amappl1 80 19659 0 19041 17 3 14 15 0 8 0 amappl 88 24247 0 24050 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 128 256 0 256 4 4 0 1 0 8 0 dma64 64 7 0 7 2 2 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 72 125 0 8 3 0 3 3 0 8 0 uaddrrnd 24 2941 0 2909 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2941 0 2909 1 0 1 1 0 8 0 vmmpekpl 168 21837 0 21754 4 0 4 4 0 8 0 vmmpepl 168 183292 0 181168 113 13 100 103 0 357 0 vmsppl 480 2940 0 2909 7 2 5 5 0 8 0 rwobjpl 72 50017 0 42978 135 5 130 134 0 8 0 pdppl 4096 5889 0 5818 133 60 73 81 0 8 2 pvpl 32 18423 0 0 151 3 148 148 0 265 0 pmappl 256 2940 0 2909 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 471 0 103 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace dt_ioctl_record_stop(ffff800000afb000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff80003c451218) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c451218) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002d835410) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd807b73de80,81,fffffd80097fb2d8,ffff80003c451218) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806baaeb80,ffff80003c451218) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806baaeb80,ffff80003c451218) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806baaeb80,ffff80003c451218) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806baaeb80,ffff80003c451218) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80003c451218) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80003c451218,0,0,1) at exit1+0x5a0 sys/kern/kern_exit.c:215 sys_exit(ffff80003c451218,ffff80002d835780,ffff80002d8356d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002d835780) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002d835780) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77e15dd56f60, count: -12 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) 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+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff8000299ddff0) at sched_idle+0x4f8 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff8000299ddff0) at sched_idle+0x4f8 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5