uvm_fault(0xfffffd805f8ba5e8, 0x20, 0, 1) -> e kernel: page fault trap, code=0 Stopped at mtx_enter_try+0x7b: movl 0x8(%r14),%r15d TID PID UID PRFLAGS PFLAGS CPU COMMAND 197286 28073 0 0x14000 0x200 0 reaper mtx_enter_try(18) at mtx_enter_try+0x7b sys/kern/kern_lock.c:290 mtx_enter(18) at mtx_enter+0x62 sys/kern/kern_lock.c:261 clockintr_unbind(ffff800001530930,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff8000015f9000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(21e5f,81,2000,ffff80003c44fa28) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003c44fa28) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c436ca0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805d393018,81,fffffd80097fb618,ffff80003c44fa28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b3bac38,ffff80003c44fa28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b3bac38,ffff80003c44fa28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b3bac38,ffff80003c44fa28) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b3bac38,ffff80003c44fa28) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c44fa28) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c44fa28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c44fa28,ffff80003c437010,ffff80003c436f60) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c437010) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c437010) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 end trace frame: 0xffff80003c437090, 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(0xfffffd805f8ba5e8, 0x20, 0, 1) -> e ddb{1}> trace mtx_enter_try(18) at mtx_enter_try+0x7b sys/kern/kern_lock.c:290 mtx_enter(18) at mtx_enter+0x62 sys/kern/kern_lock.c:261 clockintr_unbind(ffff800001530930,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff8000015f9000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(21e5f,81,2000,ffff80003c44fa28) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003c44fa28) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c436ca0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805d393018,81,fffffd80097fb618,ffff80003c44fa28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b3bac38,ffff80003c44fa28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b3bac38,ffff80003c44fa28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b3bac38,ffff80003c44fa28) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b3bac38,ffff80003c44fa28) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c44fa28) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c44fa28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c44fa28,ffff80003c437010,ffff80003c436f60) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c437010) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c437010) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x710c45e77350, count: -15 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c436b00 rbx 0 rdx 0 rcx 0xffff80003c44fa28 rax 0xffff8000299edf00 r8 0x9 r9 0x1 r10 0x844f471cc399c7e3 r11 0xffcc5b03c3383ac6 r12 0x1 r13 0xffff8000299edff0 r14 0x18 r15 0 rip 0xffffffff8144182b mtx_enter_try+0x7b cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80003c436ac0 ss 0 mtx_enter_try+0x7b: movl 0x8(%r14),%r15d ddb{1}> show proc PROC (syz-executor) tid=89168 pid=96361 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c44fa28 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003c44f790,0xffff80003c44efd8 process=0xffff80002a3d1cf8 user=0xffff80003c432000, vmspace=0xfffffd805f8ba5e8 estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 54172 227891 70505 60929 2 0x10 syz-executor 54172 187998 70505 60929 3 0x4000090 fsleep syz-executor 54172 284717 70505 60929 3 0x4000090 fsleep syz-executor 78267 487102 30660 0 2 0 syz-executor 78267 314716 30660 0 3 0x4000080 fsleep syz-executor 45287 290766 84059 0 2 0 syz-executor 45287 385142 84059 0 3 0x4000080 kqsel syz-executor 13975 281360 14401 0 2 0 syz-executor 13975 348674 14401 0 3 0x4000080 fsleep syz-executor 13975 7116 14401 0 2 0x4000000 syz-executor 96025 374260 80151 0 2 0 syz-executor 96025 278162 80151 0 3 0x4000080 fsleep syz-executor 96025 216319 80151 0 3 0x4000080 fsleep syz-executor 30224 466904 72965 0 2 0 syz-executor 30224 124409 72965 0 3 0x4000080 fsleep syz-executor 30224 229468 72965 0 3 0x4000080 fsleep syz-executor 80151 442594 36715 0 3 0x82 nanoslp syz-executor 14401 347278 36715 0 3 0x82 nanoslp syz-executor 70505 216697 36715 0 3 0x82 nanoslp syz-executor 4042 89977 0 0 3 0x14200 bored sosplice 84059 38107 36715 0 3 0x82 nanoslp syz-executor 72965 488212 36715 0 3 0x82 nanoslp syz-executor 92757 434371 36715 0 3 0x2 biowait syz-executor 30660 220755 36715 0 3 0x82 nanoslp syz-executor 2804 36037 36715 0 3 0x82 nanoslp syz-executor 36715 210164 50861 0 3 0x82 kqread syz-executor 50861 478211 87925 0 3 0x10008a sigsusp ksh 87925 357107 8527 0 3 0x98 kqread sshd-session 8527 128956 68916 0 3 0x92 kqread sshd-session 814 124439 1 0 3 0x100083 ttyopn getty 68916 461576 1 0 3 0x88 kqread sshd 41317 251904 86767 74 3 0x1100092 bpf pflogd 86767 15998 1 0 3 0x80 sbwait pflogd 44405 167283 82461 73 3 0x1100090 kqread syslogd 82461 122787 1 0 3 0x100082 sbwait syslogd 74391 52574 1 0 3 0x100080 kqread resolvd 99751 257181 56479 77 3 0x100092 kqread dhcpleased 87301 379542 56479 77 3 0x100092 kqread dhcpleased 56479 42885 1 0 3 0x80 kqread dhcpleased 96614 354546 0 0 3 0x14200 bored smr 83093 109744 0 0 2 0x14200 zerothread 46478 61270 0 0 3 0x14200 aiodoned aiodoned 30047 104512 0 0 3 0x14200 syncer update 49106 267292 0 0 3 0x14200 cleaner cleaner 28073 197286 0 0 7 0x14200 reaper 7103 232803 0 0 3 0x14200 pgdaemon pagedaemon 67711 316102 0 0 3 0x14200 bored viomb 70064 429080 0 0 3 0x40014200 acpi0 acpi0 18089 497233 0 0 3 0x40014200 idle1 23777 68887 0 0 3 0x14200 bored softnet1 41891 189892 0 0 3 0x14200 bored softnet0 5673 183818 0 0 3 0x14200 bored systqmp 84899 290144 0 0 3 0x14200 bored systq 15216 124910 0 0 3 0x14200 tmoslp softclockmp 57406 266433 0 0 3 0x40014200 tmoslp softclock 49300 438446 0 0 3 0x40014200 idle0 1 39523 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 92757 (syz-executor) thread 0xffff8000ffffcd00 (434371) Process 28073 (reaper) thread 0xffff8000ffffdc90 (197286) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10250 11118K 12639K 166960K 16498 0 pcb 18 18K 20K 166960K 632 0 rtable 190 11K 12K 166960K 732 0 pf 33 17K 67485K 166960K 294 0 ifaddr 33 6K 8K 166960K 184 0 ifgroup 51 2K 2K 166960K 342 0 sysctl 4 1K 9K 166960K 37 0 counters 66 36K 38K 166960K 488 0 ioctlops 0 0K 4K 166960K 2146 0 iov 0 0K 24K 166960K 142 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1516 95K 96K 166960K 4563 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 38 0 VM map 2 1K 1K 166960K 2 0 sem 21 11K 11K 166960K 64 0 dirhash 12 2K 2K 166960K 54 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 236K 166960K 2970 0 sigio 0 0K 0K 166960K 57 0 proc 72 115K 196K 166960K 909 0 subproc 72 4K 4K 166960K 118 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 480 0 in_multi 63 4K 7K 166960K 275 0 ether_multi 1 0K 0K 166960K 18 0 mrt 2 0K 0K 166960K 23 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 1041 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 249 160K 183K 166960K 28571 0 UVM aobj 10 3K 4K 166960K 12 0 pinsyscall 42 84K 104K 166960K 4225 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 193 0 NDP 11 0K 1K 166960K 135 0 temp 85 8652K 13772K 166960K 117346 0 kqueue 13 20K 30K 166960K 580 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 120 362 0 359 4 3 1 3 0 8 0 rtentry 176 212 0 145 5 1 4 5 0 8 0 unpcb 144 2289 0 2272 16 15 1 6 0 8 0 syncache 336 20 0 20 7 6 1 1 0 8 1 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 6 0 6 3 3 0 1 0 8 0 tcpcb 736 1073 0 1069 21 18 3 7 0 8 2 arp 136 23 0 14 1 0 1 1 0 8 0 inpcb 328 3325 0 3317 40 37 3 13 0 8 2 nd6 144 38 0 25 1 0 1 1 0 8 0 pkpcb 40 17 0 17 9 9 0 1 0 8 0 kcovpl 48 13 0 5 1 0 1 1 0 8 0 mppekey 1024 2 0 2 2 2 0 1 0 8 0 ppxss 1192 175 0 175 3 3 0 1 0 8 0 pppxif 1504 14 0 14 6 6 0 1 0 8 0 pffrag 232 44 0 41 1 0 1 1 0 482 0 pffrnode 88 43 0 40 1 0 1 1 0 8 0 pffrent 40 92 0 89 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 3 0 3 3 3 0 1 0 8 0 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pfstitem 24 190 0 102 1 0 1 1 0 8 0 pfstkey 128 190 0 102 4 0 4 4 0 8 0 pfstate 384 190 0 102 10 0 10 10 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 rttmr 136 6 0 6 4 3 1 1 0 8 1 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 1018 0 739 32 12 20 28 0 8 1 art_table 40 1022 0 739 5 0 5 5 0 8 0 art_node 32 209 0 150 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 10 1 0 1 1 0 8 0 semupl 112 4 0 4 3 3 0 1 0 8 0 semapl 112 57 0 38 1 0 1 1 0 8 0 shmpl 112 9 0 2 1 0 1 1 0 8 0 dirhash 1024 45 0 28 3 0 3 3 0 8 0 dino2pl 256 7098 0 5584 96 0 96 96 0 8 0 ffsino 296 7098 0 5584 117 0 117 117 0 8 0 nchpl 144 11366 0 10747 64 39 25 64 0 8 0 rtmask 32 17 0 17 4 4 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 39245 0 39245 4 3 1 2 0 8 1 percpumem 16 259 0 211 1 0 1 1 0 8 0 kstatmem 264 222 0 196 7 4 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 20 0 20 8 7 1 1 0 8 1 scxspl 216 58530 0 58529 28 26 2 8 1 8 1 plimitpl 152 729 0 712 1 0 1 1 0 8 0 sigapl 424 3286 0 3238 9 2 7 8 0 8 0 knotepl 120 620 0 0 19 0 19 19 0 8 0 kqueuepl 224 1284 0 1274 15 14 1 5 0 8 0 pipepl 344 599 0 572 12 9 3 9 0 8 0 fdescpl 528 3240 0 3209 3 0 3 3 0 8 0 filepl 160 22919 0 22702 41 30 11 21 0 8 1 lockfpl 104 1290 0 1287 3 2 1 2 0 8 0 lockfspl 48 582 0 579 1 0 1 1 0 8 0 sessionpl 144 37 0 28 1 0 1 1 0 8 0 pgrppl 48 77 0 60 1 0 1 1 0 8 0 ucredpl 104 4001 0 3987 1 0 1 1 0 8 0 zombiepl 144 3599 0 3598 1 0 1 1 0 8 0 processpl 1232 3286 0 3238 7 3 4 6 0 8 0 procpl 664 8195 0 8137 9 3 6 8 0 8 0 sosppl 168 20 0 20 8 8 0 1 0 8 0 sockpl 752 6063 0 6035 50 44 6 18 0 8 2 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 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 112 13 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 68 0 0 7 1 6 7 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 308 0 0 19 0 19 19 0 8 0 bufpl 280 23286 0 17143 440 0 440 440 0 8 0 anonpl 32 12683 0 0 103 1 102 102 0 246 0 amapchunkpl 152 111793 0 111235 65 36 29 40 0 158 4 amappl16 200 9729 0 9689 77 70 7 28 0 8 0 amappl15 192 8 0 8 2 2 0 1 0 8 0 amappl14 184 144 0 132 1 0 1 1 0 8 0 amappl13 176 6 0 6 2 2 0 1 0 8 0 amappl12 168 3974 0 3943 3 1 2 2 0 8 0 amappl11 160 56 0 42 1 0 1 1 0 8 0 amappl10 152 10 0 9 2 1 1 1 0 8 0 amappl9 144 249 0 249 1 1 0 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 124 0 112 1 0 1 1 0 8 0 amappl6 120 277 0 273 1 0 1 1 0 8 0 amappl5 112 142 0 132 1 0 1 1 0 8 0 amappl4 104 365 0 345 1 0 1 1 0 8 0 amappl3 96 17699 0 17601 4 1 3 3 0 8 0 amappl2 88 3566 0 3486 2 0 2 2 0 8 0 amappl1 80 22474 0 21877 16 2 14 15 0 8 0 amappl 88 27279 0 27102 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma32768 32768 2 0 2 2 2 0 1 0 8 0 dma16384 16384 1 0 1 1 1 0 1 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 11 0 11 4 4 0 1 0 8 0 dma128 128 257 0 257 4 4 0 1 0 8 0 dma64 64 8 0 8 3 3 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 11 0 2 1 0 1 1 0 8 0 uaddrrnd 24 3240 0 3209 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3240 0 3209 1 0 1 1 0 8 0 vmmpekpl 168 26686 0 26635 3 0 3 3 0 8 0 vmmpepl 168 206972 0 204939 141 44 97 112 0 357 0 vmsppl 488 3239 0 3209 7 2 5 5 0 8 0 rwobjpl 80 58482 0 51589 156 12 144 151 0 8 0 pdppl 4096 6488 0 6418 142 70 72 86 0 8 2 pvpl 32 21147 0 0 170 0 170 170 0 265 0 pmappl 256 3239 0 3209 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 367 0 121 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83845ff0) 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(ffffffff838b04e0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838b04e0) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a244b10,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_release_all(ffffffff838b04e0) at __mp_release_all+0xd8 sys/kern/kern_lock.c:215 msleep_nsec(ffffffff837b25f8,ffffffff837b25c0,4,ffffffff833834ff,ffffffffffffffff) at msleep_nsec+0x1e1 sys/kern/kern_synch.c:-1 reaper(ffff8000ffffdc90) at reaper+0x13b sys/kern/kern_exit.c:477 end trace frame: 0x0, count: 6 ddb{0}> trace x86_ipi_db(ffffffff83845ff0) 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(ffffffff838b04e0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838b04e0) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a244b10,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_release_all(ffffffff838b04e0) at __mp_release_all+0xd8 sys/kern/kern_lock.c:215 msleep_nsec(ffffffff837b25f8,ffffffff837b25c0,4,ffffffff833834ff,ffffffffffffffff) at msleep_nsec+0x1e1 sys/kern/kern_synch.c:-1 reaper(ffff8000ffffdc90) at reaper+0x13b sys/kern/kern_exit.c:477 end trace frame: 0x0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at mtx_enter_try+0x7b: movl 0x8(%r14),%r15d mtx_enter_try(18) at mtx_enter_try+0x7b sys/kern/kern_lock.c:290 mtx_enter(18) at mtx_enter+0x62 sys/kern/kern_lock.c:261 clockintr_unbind(ffff800001530930,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff8000015f9000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(21e5f,81,2000,ffff80003c44fa28) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003c44fa28) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c436ca0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805d393018,81,fffffd80097fb618,ffff80003c44fa28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b3bac38,ffff80003c44fa28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b3bac38,ffff80003c44fa28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b3bac38,ffff80003c44fa28) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b3bac38,ffff80003c44fa28) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c44fa28) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c44fa28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c44fa28,ffff80003c437010,ffff80003c436f60) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c437010) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c437010) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 end trace frame: 0xffff80003c437090, count: 0 ddb{1}> trace mtx_enter_try(18) at mtx_enter_try+0x7b sys/kern/kern_lock.c:290 mtx_enter(18) at mtx_enter+0x62 sys/kern/kern_lock.c:261 clockintr_unbind(ffff800001530930,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff8000015f9000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(21e5f,81,2000,ffff80003c44fa28) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003c44fa28) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c436ca0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805d393018,81,fffffd80097fb618,ffff80003c44fa28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b3bac38,ffff80003c44fa28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b3bac38,ffff80003c44fa28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b3bac38,ffff80003c44fa28) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b3bac38,ffff80003c44fa28) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c44fa28) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c44fa28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c44fa28,ffff80003c437010,ffff80003c436f60) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c437010) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c437010) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x710c45e77350, count: -15