uvm_fault(0xfffffd806c1f37c0, 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 382889 99717 0 0x2 0x1 0 syz-executor 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(ffff8000014bed30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001491000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,81,2000,ffff800032bdfa10) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff800032bdfa10) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002efd5490) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806c1187b0,81,fffffd80097fb6e8,ffff800032bdfa10) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806bfde0e8,ffff800032bdfa10) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806bfde0e8,ffff800032bdfa10) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806bfde0e8,ffff800032bdfa10) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806bfde0e8,ffff800032bdfa10) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800032bdfa10) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800032bdfa10,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800032bdfa10,ffff80002efd5800,ffff80002efd5750) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002efd5800) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002efd5800) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 end trace frame: 0xffff80002efd5880, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd806c1f37c0, 0x48, 0, 1) -> e ddb{1}> 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(ffff8000014bed30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001491000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,81,2000,ffff800032bdfa10) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff800032bdfa10) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002efd5490) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806c1187b0,81,fffffd80097fb6e8,ffff800032bdfa10) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806bfde0e8,ffff800032bdfa10) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806bfde0e8,ffff800032bdfa10) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806bfde0e8,ffff800032bdfa10) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806bfde0e8,ffff800032bdfa10) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800032bdfa10) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800032bdfa10,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800032bdfa10,ffff80002efd5800,ffff80002efd5750) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002efd5800) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002efd5800) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c95ec593410, count: -15 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002efd52f0 rbx 0 rdx 0 rcx 0xffff800032bdfa10 rax 0xffff8000299edffe r8 0x3b9aca00 r9 0x1 r10 0x5c39ab95fe5c61cb r11 0x5a48728a32e4a51d r12 0xfe r13 0x9 r14 0x28 r15 0 rip 0xffffffff81dfd415 witness_checkorder+0xb5 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002efd5250 ss 0x10 witness_checkorder+0xb5: movl 0x20(%r14),%r15d ddb{1}> show proc PROC (syz-executor) tid=352070 pid=28245 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=54, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff800032bdfa10 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff800032bde2b8,0xffff800032bdefc0 process=0xffff80002a3ceb68 user=0xffff80002efd0000, vmspace=0xfffffd806c1f37c0 estcpu=4, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 6437 101413 95083 0 2 0 syz-executor 6437 332532 95083 0 2 0x4000000 syz-executor 55678 1561 9592 0 2 0 syz-executor 55678 185125 9592 0 2 0x4000000 syz-executor 38052 466412 4802 60929 3 0x3010 suspend syz-executor 38052 484138 4802 60929 2 0x4081010 syz-executor 91285 94842 21513 0 2 0 syz-executor 91285 455047 21513 0 2 0x4000000 syz-executor 91285 73915 21513 0 2 0x4000000 syz-executor 91285 133837 21513 0 2 0x4000000 syz-executor 66216 151221 26378 0 3 0x100082 sbwait ndp 26378 202840 1874 0 3 0x10008a sigsusp sh 21513 116682 7586 0 3 0x82 nanoslp syz-executor 99717 382889 7586 0 7 0x3 syz-executor 4802 117585 7586 0 3 0x82 nanoslp syz-executor 9592 156853 7586 0 3 0x82 nanoslp syz-executor 26732 206846 7586 0 2 0x2 syz-executor 1874 274978 7586 0 3 0x82 wait syz-executor 41526 515045 7586 0 3 0x82 nanoslp syz-executor 95083 278184 7586 0 3 0x82 nanoslp syz-executor 7586 424160 16352 0 3 0x82 kqread syz-executor 16352 325775 36365 0 3 0x10008a sigsusp ksh 36365 206406 73043 0 3 0x98 kqread sshd-session 73043 431587 25515 0 3 0x92 kqread sshd-session 93063 296672 1 0 3 0x100083 ttyin getty 25515 151448 1 0 3 0x88 kqread sshd 14422 355411 17118 74 3 0x1100092 bpf pflogd 17118 400275 1 0 3 0x80 sbwait pflogd 79398 218033 61669 73 3 0x1100090 kqread syslogd 61669 327383 1 0 3 0x100082 sbwait syslogd 10322 162343 1 0 3 0x100080 kqread resolvd 59368 502871 13407 77 3 0x100092 kqread dhcpleased 63002 297890 13407 77 3 0x100092 kqread dhcpleased 13407 372444 1 0 3 0x80 kqread dhcpleased 91981 188418 0 0 3 0x14200 bored smr 97005 346419 0 0 2 0x14200 zerothread 72921 156054 0 0 3 0x14200 aiodoned aiodoned 64183 135749 0 0 3 0x14200 syncer update 55372 463841 0 0 3 0x14200 cleaner cleaner 48055 108150 0 0 3 0x14200 reaper reaper 92436 435396 0 0 3 0x14200 pgdaemon pagedaemon 34024 278212 0 0 3 0x14200 bored viomb 54495 231207 0 0 3 0x40014200 acpi0 acpi0 59421 339779 0 0 3 0x40014200 idle1 47663 94757 0 0 3 0x14200 bored softnet1 82196 193534 0 0 3 0x14200 bored softnet0 47286 34212 0 0 3 0x14200 smrbar systqmp 27651 430857 0 0 3 0x14200 bored systq 67485 482297 0 0 3 0x14200 tmoslp softclockmp 27761 477028 0 0 3 0x40014200 tmoslp softclock 31951 213209 0 0 3 0x40014200 idle0 1 254358 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 47286 (systqmp) thread 0xffff8000ffffe530 (34212) shared rwlock systqmp r = 0 (0xffffffff8378f5a8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10208 11171K 11182K 166960K 11329 0 pcb 18 12K 12K 166960K 29 0 rtable 237 7K 7K 166960K 354 0 pf 36 17K 18K 166960K 50 0 ifaddr 44 7K 7K 166960K 48 0 ifgroup 57 2K 2K 166960K 62 0 sysctl 1 1K 9K 166960K 5 0 counters 70 37K 37K 166960K 74 0 ioctlops 0 0K 4K 166960K 1491 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1343 85K 85K 166960K 1388 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 4 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1732 201K 291K 166960K 11958 0 file desc 17 61K 93K 166960K 158 0 proc 70 115K 164K 166960K 529 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 3 0 in_multi 99 7K 7K 166960K 100 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 43 201K 201K 166960K 43 0 exec 0 0K 1K 166960K 376 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 233 145K 154K 166960K 3360 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 43 86K 108K 166960K 1292 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 13 0K 2K 166960K 30 0 temp 36 8646K 8714K 166960K 5541 0 kqueue 14 22K 26K 166960K 25 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 35 0 31 1 0 1 1 0 8 0 rtentry 176 111 0 2 5 0 5 5 0 8 0 unpcb 144 47 0 28 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 15 0 11 1 0 1 1 0 8 0 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 83 0 76 2 0 2 2 0 8 1 nd6 152 23 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 2 0 1 1 0 1 1 0 8 0 pppxif 1504 1 0 1 1 0 1 1 0 8 1 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 20 0 0 1 0 1 1 0 8 0 pfstkey 128 20 0 0 1 0 1 1 0 8 0 pfstate 384 20 0 0 2 0 2 2 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 457 0 6 29 0 29 29 0 8 0 art_table 40 458 0 6 5 0 5 5 0 8 0 art_node 32 111 0 11 1 0 1 1 0 8 0 semapl 112 2 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1612 0 96 95 0 95 95 0 8 0 ffsino 296 1612 0 96 117 0 117 117 0 8 0 nchpl 144 1826 0 123 64 0 64 64 0 8 0 vnodes 216 1712 0 0 96 0 96 96 0 8 0 namei 1024 5505 0 5505 2 0 2 2 0 8 2 percpumem 16 52 0 2 1 0 1 1 0 8 0 kstatmem 264 30 0 2 2 0 2 2 0 8 0 scxspl 216 6130 0 6130 3 2 1 2 1 8 1 plimitpl 152 29 0 11 1 0 1 1 0 8 0 sigapl 424 469 0 422 7 0 7 7 0 8 1 knotepl 120 83 0 0 3 0 3 3 0 8 0 kqueuepl 224 26 0 15 1 0 1 1 0 8 0 pipepl 344 118 0 91 3 0 3 3 0 8 0 fdescpl 528 453 0 422 3 0 3 3 0 8 0 filepl 160 1622 0 1396 10 0 10 10 0 8 0 lockfpl 104 24 0 21 1 0 1 1 0 8 0 lockfspl 48 11 0 8 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 30 0 13 1 0 1 1 0 8 0 ucredpl 104 88 0 74 1 0 1 1 0 8 0 zombiepl 144 424 0 422 1 0 1 1 0 8 0 processpl 1232 469 0 422 5 0 5 5 0 8 0 procpl 664 522 0 469 6 0 6 6 0 8 1 sockpl 752 166 0 135 4 0 4 4 0 8 0 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 121 0 0 16 0 16 16 0 8 0 mcl2k 2048 36 0 0 5 0 5 5 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 198 0 0 13 0 13 13 0 8 0 bufpl 280 2434 0 131 165 0 165 165 0 8 0 anonpl 32 3927 0 0 32 0 32 32 0 246 0 amapchunkpl 152 9214 0 8772 20 0 20 20 0 158 0 amappl16 200 1989 0 1971 5 1 4 5 0 8 2 amappl15 192 20 0 20 1 1 0 1 0 8 0 amappl14 184 2 0 2 1 1 0 1 0 8 0 amappl13 176 428 0 426 1 0 1 1 0 8 0 amappl12 168 848 0 805 3 0 3 3 0 8 0 amappl11 160 8 0 8 1 1 0 1 0 8 0 amappl10 152 56 0 41 1 0 1 1 0 8 0 amappl9 144 267 0 267 1 1 0 1 0 8 0 amappl8 136 27 0 25 1 0 1 1 0 8 0 amappl7 128 81 0 80 1 0 1 1 0 8 0 amappl6 120 283 0 268 1 0 1 1 0 8 0 amappl5 112 77 0 67 1 0 1 1 0 8 0 amappl4 104 422 0 388 2 0 2 2 0 8 1 amappl3 96 1445 0 1360 4 1 3 3 0 8 0 amappl2 88 604 0 530 2 0 2 2 0 8 0 amappl1 80 9172 0 8558 15 0 15 15 0 8 0 amappl 88 2617 0 2465 4 0 4 4 0 92 0 uvmvnodes 80 1712 0 0 35 0 35 35 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 453 0 422 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 453 0 422 1 0 1 1 0 8 0 vmmpekpl 168 5578 0 5546 2 0 2 2 0 8 0 vmmpepl 168 37458 0 35588 88 0 88 88 0 357 1 vmsppl 488 452 0 422 5 0 5 5 0 8 0 rwobjpl 80 15361 0 12709 56 0 56 56 0 8 0 pdppl 4096 914 0 844 100 22 78 86 0 8 8 pvpl 32 10030 0 0 81 0 81 81 0 265 0 pmappl 256 452 0 422 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 275 0 24 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83862ff0) 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(ffffffff839b1218) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839b1218) at __mp_lock+0x192 sys/kern/kern_lock.c:165 ktrsysret(ffff8000fffeefa8,63,0,ffff80002a3abf10) at ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000fffeefa8,63,0,ffff80002a3abf10) at ktrsysret+0xde sys/kern/kern_ktrace.c:209 syscall(ffff80002a3abfc0) at syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a3abfc0) at syscall+0xa50 sys/arch/amd64/amd64/trap.c:786 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c6868d55e10, count: 8 ddb{0}> trace x86_ipi_db(ffffffff83862ff0) 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(ffffffff839b1218) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839b1218) at __mp_lock+0x192 sys/kern/kern_lock.c:165 ktrsysret(ffff8000fffeefa8,63,0,ffff80002a3abf10) at ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000fffeefa8,63,0,ffff80002a3abf10) at ktrsysret+0xde sys/kern/kern_ktrace.c:209 syscall(ffff80002a3abfc0) at syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a3abfc0) at syscall+0xa50 sys/arch/amd64/amd64/trap.c:786 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c6868d55e10, count: -7 ddb{0}> machine ddbcpu 1 Stopped at witness_checkorder+0xb5: movl 0x20(%r14),%r15d 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(ffff8000014bed30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001491000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,81,2000,ffff800032bdfa10) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff800032bdfa10) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002efd5490) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806c1187b0,81,fffffd80097fb6e8,ffff800032bdfa10) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806bfde0e8,ffff800032bdfa10) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806bfde0e8,ffff800032bdfa10) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806bfde0e8,ffff800032bdfa10) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806bfde0e8,ffff800032bdfa10) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800032bdfa10) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800032bdfa10,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800032bdfa10,ffff80002efd5800,ffff80002efd5750) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002efd5800) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002efd5800) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 end trace frame: 0xffff80002efd5880, count: 0 ddb{1}> 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(ffff8000014bed30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001491000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,81,2000,ffff800032bdfa10) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff800032bdfa10) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002efd5490) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806c1187b0,81,fffffd80097fb6e8,ffff800032bdfa10) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806bfde0e8,ffff800032bdfa10) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806bfde0e8,ffff800032bdfa10) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806bfde0e8,ffff800032bdfa10) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806bfde0e8,ffff800032bdfa10) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800032bdfa10) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800032bdfa10,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800032bdfa10,ffff80002efd5800,ffff80002efd5750) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002efd5800) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002efd5800) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c95ec593410, count: -15