uvm_fault(0xfffffd80685e75d8, 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 38650 34816 0 0 0 0 syz-executor dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,81,2000,ffff80003ac08020) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003ac08020) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003ac0ed50) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805dfd26c0,81,fffffd80097fb5b0,ffff80003ac08020) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806abfaa48,ffff80003ac08020) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806abfaa48,ffff80003ac08020) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806abfaa48,ffff80003ac08020) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806abfaa48,ffff80003ac08020) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003ac08020) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003ac08020,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003ac08020,ffff80003ac0f0c0,ffff80003ac0f010) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003ac0f0c0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac0f0c0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c085f102360, 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(0xfffffd80685e75d8, 0x0, 0, 1) -> e ddb{1}> trace dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,81,2000,ffff80003ac08020) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003ac08020) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003ac0ed50) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805dfd26c0,81,fffffd80097fb5b0,ffff80003ac08020) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806abfaa48,ffff80003ac08020) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806abfaa48,ffff80003ac08020) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806abfaa48,ffff80003ac08020) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806abfaa48,ffff80003ac08020) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003ac08020) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003ac08020,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003ac08020,ffff80003ac0f0c0,ffff80003ac0f010) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003ac0f0c0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac0f0c0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c085f102360, count: -12 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003ac0ec80 rbx 0x1 rdx 0 rcx 0xffff80003ac08020 rax 0xffffffff838286a8 dt_prov_syscall r8 0xffff80003ac0ee80 r9 0x40 r10 0x76805cd91f253b1 r11 0x4c40f3c21e92a42e r12 0 r13 0 r14 0 r15 0xffff8000014bab00 rip 0xffffffff822bd948 dt_ioctl_record_stop+0x108 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff80003ac0ec50 ss 0x10 dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 ddb{1}> show proc PROC (syz-executor) tid=488630 pid=50798 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003ac08020 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003ac094e0,0xffff80003ac09cb8 process=0xffff80003b8249c0 user=0xffff80003ac0a000, vmspace=0xfffffd80685e75d8 estcpu=36, cpticks=5, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 34816 38650 46622 0 7 0 syz-executor 34816 149751 46622 0 3 0x4000080 sbwait syz-executor 48750 435135 69995 0 2 0 syz-executor 48750 413463 69995 0 3 0x4000080 sbwait syz-executor 56188 324222 84480 0 2 0 syz-executor 56188 35095 84480 0 3 0x4000080 bell syz-executor 30345 337569 52794 0 2 0 syz-executor 30345 260998 52794 0 3 0x4000080 fsleep syz-executor 77599 76153 43911 60929 2 0x10 syz-executor 77599 207071 43911 60929 3 0x4000090 fsleep syz-executor 18956 348556 48953 0 2 0 syz-executor 18956 94118 48953 0 3 0x4000080 fsleep syz-executor 85020 243192 18535 0 4 0x82000 syz-executor 85020 123211 18535 0 4 0x4082000 syz-executor 85020 484514 18535 0 3 0x4082000 biowait syz-executor 85020 360243 18535 0 3 0x4082000 inode syz-executor 85020 403245 18535 0 3 0x4082000 inode syz-executor 85020 12848 18535 0 4 0x4082000 syz-executor 85020 362554 18535 0 3 0x4002000 suspend syz-executor 14981 495 0 0 3 0x14200 acct acct 38200 368496 0 0 3 0x14200 bored sosplice 84480 436658 75334 0 3 0x82 nanoslp syz-executor 46622 94466 75334 0 3 0x82 nanoslp syz-executor 69995 437768 75334 0 3 0x82 nanoslp syz-executor 52794 412775 75334 0 3 0x82 nanoslp syz-executor 11981 139752 75334 0 3 0x82 nanoslp syz-executor 48953 505932 75334 0 3 0x82 nanoslp syz-executor 43911 497997 75334 0 3 0x82 nanoslp syz-executor 18535 271845 75334 0 3 0x82 nanoslp syz-executor 75334 17412 58782 0 3 0x82 kqread syz-executor 58782 453456 72285 0 3 0x10008a sigsusp ksh 72285 398524 25768 0 3 0x98 kqread sshd-session 25768 168463 62908 0 3 0x92 kqread sshd-session 34989 5949 1 0 3 0x100083 ttyopn getty 62908 382481 1 0 3 0x88 kqread sshd 1165 157471 14666 74 3 0x1100092 bpf pflogd 14666 49989 1 0 3 0x80 sbwait pflogd 28834 265915 98926 73 3 0x1100090 kqread syslogd 98926 334636 1 0 3 0x100082 sbwait syslogd 68767 92525 1 0 3 0x100080 kqread resolvd 73161 51668 78842 77 3 0x100092 kqread dhcpleased 575 240843 78842 77 3 0x100092 kqread dhcpleased 78842 491723 1 0 3 0x80 kqread dhcpleased 26062 143707 0 0 3 0x14200 bored smr 42124 211968 0 0 2 0x14200 zerothread 28357 433053 0 0 3 0x14200 aiodoned aiodoned 24792 113888 0 0 3 0x14200 syncer update 30399 306680 0 0 3 0x14200 cleaner cleaner 36615 254212 0 0 3 0x14200 reaper reaper 856 82318 0 0 3 0x14200 pgdaemon pagedaemon 1385 210413 0 0 3 0x14200 bored viomb 58078 60665 0 0 3 0x40014200 acpi0 acpi0 60545 45453 0 0 3 0x40014200 idle1 69847 254605 0 0 3 0x14200 bored softnet1 45149 179959 0 0 3 0x14200 bored softnet0 3325 324033 0 0 3 0x14200 bored systqmp 42467 49174 0 0 3 0x14200 bored systq 31209 445511 0 0 3 0x14200 tmoslp softclockmp 44425 165818 0 0 3 0x40014200 tmoslp softclock 49601 285540 0 0 3 0x40014200 idle0 1 143905 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 48750 (syz-executor) thread 0xffff80003c435250 (413463) exclusive rwlock sbufrcv r = 0 (0xffff800010fd89d8) #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 sblock+0xb6 sys/kern/uipc_socket2.c:536 #3 soreceive+0x27d sys/kern/uipc_socket.c:870 #4 recvit+0x40b sys/kern/uipc_syscalls.c:1078 #5 sys_recvmmsg+0x410 sys/kern/uipc_syscalls.c:969 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 Process 85020 (syz-executor) thread 0xffff80003c434a88 (484514) exclusive rrwlock inode r = 0 (0xfffffd806e3ffdb0) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 85020 (syz-executor) thread 0xffff8000fffef240 (360243) exclusive rrwlock inode r = 0 (0xfffffd806ac0cec8) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 dofchmodat+0x162 sys/kern/vfs_syscalls.c:2382 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10218 11121K 11121K 166960K 11388 0 pcb 18 12K 12K 166960K 43 0 rtable 233 8K 8K 166960K 394 0 pf 34 17K 81K 166960K 53 0 ifaddr 43 7K 7K 166960K 47 0 ifgroup 55 2K 2K 166960K 60 0 sysctl 1 1K 9K 166960K 6 0 counters 68 36K 37K 166960K 70 0 ioctlops 0 0K 4K 166960K 1496 0 iov 2 8K 12K 166960K 12 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1343 85K 85K 166960K 1440 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 12 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 93K 166960K 240 0 sigio 0 0K 0K 166960K 5 0 proc 75 131K 212K 166960K 544 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 6 0 in_multi 99 7K 7K 166960K 102 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 401 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 257 160K 177K 166960K 4171 0 UVM aobj 5 2K 2K 166960K 5 0 pinsyscall 43 86K 102K 166960K 1409 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 3 0 NDP 12 0K 2K 166960K 29 0 temp 44 8643K 8711K 166960K 11181 0 kqueue 13 20K 34K 166960K 52 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 45 0 42 1 0 1 1 0 8 0 rtentry 176 114 0 12 6 0 6 6 0 8 0 unpcb 144 119 0 94 2 0 2 2 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 31 0 25 1 0 1 1 0 8 0 arp 136 20 0 1 1 0 1 1 0 8 0 inpcb 328 144 0 132 2 0 2 2 0 8 0 nd6 152 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 1 0 0 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 23 0 0 1 0 1 1 0 8 0 pfstkey 128 23 0 0 1 0 1 1 0 8 0 pfstate 384 23 0 0 3 0 3 3 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 484 0 41 31 0 31 31 0 8 1 art_table 40 487 0 41 5 0 5 5 0 8 0 art_node 32 114 0 22 1 0 1 1 0 8 0 semapl 112 9 0 2 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1770 0 254 96 0 96 96 0 8 0 ffsino 296 1770 0 254 118 0 118 118 0 8 1 nchpl 144 2120 0 419 64 0 64 64 0 8 0 vnodes 216 1893 0 0 106 0 106 106 0 8 0 namei 1024 6365 0 6363 2 0 2 2 0 8 1 percpumem 16 50 0 1 1 0 1 1 0 8 0 kstatmem 264 28 0 2 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 8232 0 8231 3 2 1 2 1 8 0 plimitpl 152 40 0 22 1 0 1 1 0 8 0 sigapl 424 563 0 513 7 0 7 7 0 8 1 knotepl 120 514 0 0 16 0 16 16 0 8 0 kqueuepl 224 59 0 50 2 0 2 2 0 8 1 pipepl 344 137 0 109 3 0 3 3 0 8 0 fdescpl 528 545 0 513 3 0 3 3 0 8 0 filepl 160 2134 0 1900 11 0 11 11 0 8 0 lockfpl 104 112 0 107 1 0 1 1 0 8 0 lockfspl 48 26 0 21 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 104 154 0 140 1 0 1 1 0 8 0 zombiepl 144 514 0 513 1 0 1 1 0 8 0 processpl 1232 563 0 513 5 0 5 5 0 8 0 procpl 664 741 0 679 6 0 6 6 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 752 310 0 270 5 0 5 5 0 8 0 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 125 0 0 16 0 16 16 0 8 0 mcl2k 2048 22 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 141 0 0 9 0 9 9 0 8 0 bufpl 280 3425 0 131 236 0 236 236 0 8 0 anonpl 32 7429 0 0 60 0 60 60 0 246 0 amapchunkpl 152 12205 0 11544 29 0 29 29 0 158 3 amappl16 200 2254 0 2108 10 2 8 8 0 8 0 amappl15 192 10 0 10 1 1 0 1 0 8 0 amappl14 184 68 0 68 1 1 0 1 0 8 0 amappl13 176 435 0 434 1 0 1 1 0 8 0 amappl12 168 917 0 874 3 0 3 3 0 8 0 amappl11 160 8 0 8 1 1 0 1 0 8 0 amappl10 152 51 0 37 1 0 1 1 0 8 0 amappl9 144 246 0 246 1 1 0 1 0 8 0 amappl8 136 34 0 32 1 0 1 1 0 8 0 amappl7 128 82 0 81 1 0 1 1 0 8 0 amappl6 120 281 0 268 1 0 1 1 0 8 0 amappl5 112 79 0 69 1 0 1 1 0 8 0 amappl4 104 433 0 403 1 0 1 1 0 8 0 amappl3 96 1940 0 1840 4 1 3 3 0 8 0 amappl2 88 675 0 598 2 0 2 2 0 8 0 amappl1 80 9878 0 9276 15 0 15 15 0 8 1 amappl 88 3386 0 3206 5 0 5 5 0 92 0 uvmvnodes 80 1893 0 0 39 0 39 39 0 8 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 545 0 513 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 545 0 513 1 0 1 1 0 8 0 vmmpekpl 168 6372 0 6337 2 0 2 2 0 8 0 vmmpepl 168 43053 0 40949 94 1 93 93 0 357 1 vmsppl 488 544 0 513 5 0 5 5 0 8 1 rwobjpl 80 17142 0 14180 61 0 61 61 0 8 0 pdppl 4096 1098 0 1026 104 30 74 86 0 8 2 pvpl 32 14841 0 0 120 0 120 120 0 265 0 pmappl 256 544 0 513 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 278 0 32 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837f9ff0) 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(ffffffff839bf018) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839bf018) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003c45f540,ffff80000007aa80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x70fa136f0d90, count: 9 ddb{0}> trace x86_ipi_db(ffffffff837f9ff0) 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(ffffffff839bf018) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839bf018) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003c45f540,ffff80000007aa80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x70fa136f0d90, count: -6 ddb{0}> machine ddbcpu 1 Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,81,2000,ffff80003ac08020) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003ac08020) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003ac0ed50) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805dfd26c0,81,fffffd80097fb5b0,ffff80003ac08020) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806abfaa48,ffff80003ac08020) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806abfaa48,ffff80003ac08020) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806abfaa48,ffff80003ac08020) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806abfaa48,ffff80003ac08020) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003ac08020) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003ac08020,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003ac08020,ffff80003ac0f0c0,ffff80003ac0f010) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003ac0f0c0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac0f0c0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c085f102360, count: 3 ddb{1}> trace dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,81,2000,ffff80003ac08020) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003ac08020) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003ac0ed50) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805dfd26c0,81,fffffd80097fb5b0,ffff80003ac08020) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806abfaa48,ffff80003ac08020) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806abfaa48,ffff80003ac08020) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806abfaa48,ffff80003ac08020) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806abfaa48,ffff80003ac08020) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003ac08020) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003ac08020,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003ac08020,ffff80003ac0f0c0,ffff80003ac0f010) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003ac0f0c0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac0f0c0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c085f102360, count: -12