login: ./file0./file0 κΟuvm_fault(0xfffffd806bff4200, 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 395086 37472 0 0x2 0 0 syz-executor dt_ioctl_record_stop(ffff800001490000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff80003c446fa0) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c446fa0) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c4294b0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805ee3fa80,81,fffffd80097fb6e8,ffff80003c446fa0) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806be71698,ffff80003c446fa0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806be71698,ffff80003c446fa0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806be71698,ffff80003c446fa0) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806be71698,ffff80003c446fa0) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80003c446fa0) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80003c446fa0,b,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003c446fa0,ffff80003c429820,ffff80003c429770) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c429820) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c429820) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d57c6216fd0, 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(0xfffffd806bff4200, 0x0, 0, 1) -> e ddb{1}> trace dt_ioctl_record_stop(ffff800001490000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff80003c446fa0) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c446fa0) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c4294b0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805ee3fa80,81,fffffd80097fb6e8,ffff80003c446fa0) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806be71698,ffff80003c446fa0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806be71698,ffff80003c446fa0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806be71698,ffff80003c446fa0) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806be71698,ffff80003c446fa0) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80003c446fa0) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80003c446fa0,b,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003c446fa0,ffff80003c429820,ffff80003c429770) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c429820) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c429820) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d57c6216fd0, count: -12 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c4293e0 rbx 0xffffffff818e7780 dtclose rdx 0 rcx 0xffff80003c446fa0 rax 0xffffffff838c2e50 dt_prov_static r8 0x3b9aca00 r9 0x1 r10 0xb27be9bc0b8a4de0 r11 0xdbbf0baaa0beff75 r12 0xffffffff838c35f0 dt_static_uvm_malloc r13 0 r14 0 r15 0xffff80000142c200 rip 0xffffffff818e7b60 dt_ioctl_record_stop+0xf0 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff80003c4293b0 ss 0x10 dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 ddb{1}> show proc PROC (syz-executor) tid=75103 pid=6061 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=82, usrpri=82, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c446fa0 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003c447230,0xffff80003c446570 process=0xffff80002ebd5858 user=0xffff80003c424000, vmspace=0xfffffd806bff4200 estcpu=32, cpticks=6, pctcpu=0.4, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 11862 434075 57891 0 3 0x80 nanoslp syz-executor 11862 25543 57891 0 3 0x4000080 ttyin syz-executor 11862 423121 57891 0 3 0x4000080 fsleep syz-executor 80333 143285 69622 0 4 0x82000 syz-executor 80333 479341 69622 0 2 0x4002000 syz-executor 80333 93606 69622 0 4 0x4082000 syz-executor 80333 142388 69622 0 4 0x4082000 syz-executor 86076 68864 29933 0 2 0 syz-executor 86076 516263 29933 0 3 0x4000080 fsleep syz-executor 86076 351089 29933 0 3 0x4000080 fsleep syz-executor 33331 165121 0 0 3 0x14200 acct acct 13357 50895 1 0 3 0x100083 ttyin getty 45013 456577 0 0 3 0x14280 nfsidl nfsio 80064 453083 0 0 3 0x14280 nfsidl nfsio 94869 387478 0 0 3 0x14280 nfsidl nfsio 1345 470097 0 0 3 0x14280 nfsidl nfsio 25226 229588 0 0 3 0x14280 nfsidl nfsio 71013 100197 0 0 3 0x14280 nfsidl nfsio 3052 266440 0 0 3 0x14280 nfsidl nfsio 49245 431599 0 0 3 0x14280 nfsidl nfsio 96737 510084 0 0 3 0x14280 nfsidl nfsio 65292 258532 0 0 3 0x14280 nfsidl nfsio 76344 492581 0 0 3 0x14280 nfsidl nfsio 15690 340186 0 0 3 0x14280 nfsidl nfsio 16553 457638 0 0 3 0x14280 nfsidl nfsio 54062 452669 0 0 3 0x14280 nfsidl nfsio 14706 500455 0 0 3 0x14280 nfsidl nfsio 97850 402117 0 0 3 0x14280 nfsidl nfsio 43073 480657 0 0 3 0x14280 nfsidl nfsio 56932 274987 0 0 3 0x14280 nfsidl nfsio 89617 117991 0 0 3 0x14280 nfsidl nfsio 31408 319333 0 0 3 0x14280 nfsidl nfsio 60742 294674 0 0 3 0x14200 bored sosplice 29933 301997 26990 0 3 0x82 nanoslp syz-executor 99546 476810 26990 0 3 0x82 nanoslp syz-executor 81878 25203 26990 0 3 0x82 nanoslp syz-executor 69622 80194 26990 0 3 0x82 nanoslp syz-executor 61415 287866 26990 0 3 0x82 wait syz-executor 57891 28093 26990 0 3 0x82 nanoslp syz-executor 37472 395086 26990 0 7 0x2 syz-executor 6528 3638 26990 0 2 0x2 syz-executor 26990 287200 72465 0 3 0x82 kqread syz-executor 72465 432652 81725 0 3 0x10008a sigsusp ksh 81725 435430 11139 0 3 0x98 kqread sshd-session 11139 126317 93718 0 3 0x92 kqread sshd-session 93718 261252 1 0 3 0x88 kqread sshd 75026 117559 83858 74 3 0x1100092 bpf pflogd 83858 149286 1 0 3 0x80 sbwait pflogd 51753 160579 24649 73 3 0x1100090 kqread syslogd 24649 14635 1 0 3 0x100082 sbwait syslogd 53173 45699 1 0 3 0x100080 kqread resolvd 41003 84970 6303 77 3 0x100092 kqread dhcpleased 61273 194477 6303 77 3 0x100092 kqread dhcpleased 6303 474757 1 0 3 0x80 kqread dhcpleased 86866 450476 0 0 3 0x14200 bored smr 78100 172406 0 0 2 0x14200 zerothread 90807 331357 0 0 3 0x14200 aiodoned aiodoned 5702 370913 0 0 3 0x14200 syncer update 63417 502611 0 0 3 0x14200 cleaner cleaner 30814 493571 0 0 3 0x14200 reaper reaper 17211 150946 0 0 3 0x14200 pgdaemon pagedaemon 61973 44912 0 0 3 0x14200 bored viomb 526 135735 0 0 3 0x40014200 acpi0 acpi0 93283 85198 0 0 3 0x40014200 idle1 13066 36718 0 0 3 0x14200 bored softnet3 44582 103465 0 0 3 0x14200 bored softnet2 84849 457586 0 0 3 0x14200 bored softnet1 87442 343202 0 0 2 0x14200 softnet0 89719 155845 0 0 3 0x14200 bored systqmp 31580 371961 0 0 3 0x14200 bored systq 24095 287336 0 0 3 0x14200 tmoslp softclockmp 61619 156228 0 0 3 0x40014200 tmoslp softclock 43459 121762 0 0 3 0x40014200 idle0 1 67816 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 6528 (syz-executor) thread 0xffff8000ffffd718 (3638) exclusive rrwlock inode r = 0 (0xfffffd806e373e48) #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+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 sys_getdents+0x264 sys/kern/vfs_syscalls.c:-1 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10217 11064K 11558K 166960K 12028 0 pcb 18 14K 16K 166960K 191 0 rtable 191 9K 9K 166960K 405 0 pf 37 18K 67486K 166960K 82 0 ifaddr 37 6K 8K 166960K 63 0 ifgroup 55 2K 2K 166960K 84 0 sysctl 1 1K 9K 166960K 5 0 counters 68 36K 37K 166960K 106 0 ioctlops 0 0K 4K 166960K 1525 0 iov 0 0K 16K 166960K 23 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1374 86K 87K 166960K 1931 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 53 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 122K 166960K 540 0 sigio 0 0K 0K 166960K 2 0 proc 72 91K 140K 166960K 586 0 subproc 72 4K 4K 166960K 73 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 65 0 in_multi 74 5K 7K 166960K 120 0 ether_multi 1 0K 0K 166960K 5 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 400 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 243 160K 169K 166960K 6622 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 41 82K 106K 166960K 1608 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 22 0 NDP 12 0K 2K 166960K 40 0 temp 43 8687K 8938K 166960K 16332 0 kqueue 13 20K 30K 166960K 96 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 52 0 49 1 0 1 1 0 8 0 rtentry 176 121 0 42 6 0 6 6 0 8 0 unpcb 144 384 0 367 6 5 1 6 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 171 0 167 4 0 4 4 0 8 3 arp 128 19 0 4 1 0 1 1 0 8 0 inpcb 328 590 0 582 9 2 7 7 0 8 6 nd6 144 27 0 6 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 17 0 17 2 1 1 1 0 8 1 pppxif 1504 1 0 1 1 0 1 1 0 8 1 pffrag 232 3 0 1 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 6 0 4 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 4 0 1 1 0 1 1 0 8 0 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 61 0 3 1 0 1 1 0 8 0 pfstkey 128 61 0 3 2 0 2 2 0 8 0 pfstate 384 61 0 3 6 0 6 6 0 8 0 pfrule 1344 25 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 509 0 171 29 2 27 29 0 8 3 art_table 32 511 0 171 4 0 4 4 0 8 0 art_node 16 119 0 49 1 0 1 1 0 8 0 semapl 112 50 0 40 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2472 0 965 95 0 95 95 0 8 0 ffsino 288 2472 0 965 109 0 109 109 0 8 0 nchpl 144 3239 0 1544 64 0 64 64 0 8 0 rtmask 32 4 0 4 1 0 1 1 0 8 1 uvmvnodes 80 2800 0 0 58 0 58 58 0 8 0 vnodes 216 2800 0 0 156 0 156 156 0 8 0 namei 1024 10744 0 10742 1 0 1 1 0 8 0 percpumem 16 68 0 19 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 52 0 24 3 0 3 3 0 8 1 scxspl 216 9595 0 9595 3 2 1 2 1 8 1 plimitpl 152 148 0 131 1 0 1 1 0 8 0 sigapl 424 848 0 778 10 1 9 9 0 8 0 knotepl 120 312 0 0 10 0 10 10 0 8 0 kqueuepl 224 160 0 151 3 1 2 2 0 8 1 pipepl 336 139 0 112 3 0 3 3 0 8 0 fdescpl 520 807 0 777 3 0 3 3 0 8 0 filepl 160 4917 0 4697 18 5 13 15 0 8 2 lockfpl 104 237 0 235 2 1 1 2 0 8 0 lockfspl 48 50 0 48 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 36 0 19 1 0 1 1 0 8 0 ucredpl 104 1092 0 1079 1 0 1 1 0 8 0 zombiepl 144 952 0 949 1 0 1 1 0 8 0 processpl 1240 848 0 778 6 0 6 6 0 8 0 procpl 656 1549 0 1472 9 1 8 8 0 8 0 srpgc 96 4 0 4 1 0 1 1 0 8 1 sosppl 168 3 0 3 1 0 1 1 0 8 1 sockpl 728 1034 0 1004 22 12 10 16 0 8 6 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 114 0 0 15 0 15 15 0 8 0 mcl2k 2048 25 0 0 4 0 4 4 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 265 0 0 17 0 17 17 0 8 0 bufpl 280 3138 0 126 216 0 216 216 0 8 0 anonpl 32 9574 0 0 78 0 78 78 0 246 0 amapchunkpl 152 21068 0 20524 34 6 28 28 0 158 3 amappl16 200 2800 0 2764 18 3 15 15 0 8 8 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 115 0 103 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 1448 0 1418 3 1 2 2 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 275 0 275 1 1 0 1 0 8 0 amappl8 136 22 0 19 1 0 1 1 0 8 0 amappl7 128 121 0 109 1 0 1 1 0 8 0 amappl6 120 199 0 196 1 0 1 1 0 8 0 amappl5 112 121 0 112 1 0 1 1 0 8 0 amappl4 104 318 0 299 1 0 1 1 0 8 0 amappl3 96 3957 0 3848 4 0 4 4 0 8 0 amappl2 88 642 0 579 2 0 2 2 0 8 0 amappl1 80 9630 0 9026 15 2 13 15 0 8 0 amappl 88 5893 0 5722 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 807 0 777 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 807 0 777 1 0 1 1 0 8 0 vmmpekpl 168 8169 0 8130 2 0 2 2 0 8 0 vmmpepl 168 57080 0 55121 103 2 101 101 0 357 2 vmsppl 480 806 0 777 5 1 4 5 0 8 0 rwobjpl 72 20156 0 16404 75 1 74 74 0 8 0 pdppl 4096 1622 0 1554 94 22 72 86 0 8 4 pvpl 32 15502 0 0 127 1 126 126 0 265 0 pmappl 256 806 0 777 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 386 0 27 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83811ff0) 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 __mp_lock(ffffffff839443f8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:129 [inline] __mp_lock(ffffffff839443f8) at __mp_lock+0x192 sys/kern/kern_lock.c:160 __mp_acquire_count(ffffffff839443f8,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 pool_get(ffffffff839d93f0,1) at pool_get+0x265 sys/kern/subr_pool.c:588 namei(ffff80002a318b98) at namei+0xdf sys/kern/vfs_lookup.c:145 vn_open(ffff80002a318b98,30001,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 doopenat(ffff8000ffff2f70,ffffff9c,76e4977272f0,30000,0,ffff80002a318d40) at doopenat+0x32e sys/kern/vfs_syscalls.c:1137 syscall(ffff80002a318df0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a318df0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76e497726df0, count: 4 ddb{0}> trace x86_ipi_db(ffffffff83811ff0) 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 __mp_lock(ffffffff839443f8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:129 [inline] __mp_lock(ffffffff839443f8) at __mp_lock+0x192 sys/kern/kern_lock.c:160 __mp_acquire_count(ffffffff839443f8,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 pool_get(ffffffff839d93f0,1) at pool_get+0x265 sys/kern/subr_pool.c:588 namei(ffff80002a318b98) at namei+0xdf sys/kern/vfs_lookup.c:145 vn_open(ffff80002a318b98,30001,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 doopenat(ffff8000ffff2f70,ffffff9c,76e4977272f0,30000,0,ffff80002a318d40) at doopenat+0x32e sys/kern/vfs_syscalls.c:1137 syscall(ffff80002a318df0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a318df0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76e497726df0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 dt_ioctl_record_stop(ffff800001490000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff80003c446fa0) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c446fa0) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c4294b0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805ee3fa80,81,fffffd80097fb6e8,ffff80003c446fa0) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806be71698,ffff80003c446fa0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806be71698,ffff80003c446fa0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806be71698,ffff80003c446fa0) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806be71698,ffff80003c446fa0) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80003c446fa0) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80003c446fa0,b,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003c446fa0,ffff80003c429820,ffff80003c429770) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c429820) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c429820) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d57c6216fd0, count: 3 ddb{1}> trace dt_ioctl_record_stop(ffff800001490000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff80003c446fa0) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c446fa0) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c4294b0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805ee3fa80,81,fffffd80097fb6e8,ffff80003c446fa0) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806be71698,ffff80003c446fa0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806be71698,ffff80003c446fa0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806be71698,ffff80003c446fa0) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806be71698,ffff80003c446fa0) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80003c446fa0) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80003c446fa0,b,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003c446fa0,ffff80003c429820,ffff80003c429770) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c429820) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c429820) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d57c6216fd0, count: -12