uvm_fault(0xfffffd800b026b40, 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(ffff800001490000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff8000fffe2028) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff8000fffe2028) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff8000393eeab0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061e4c0e0,81,fffffd80097fb478,ffff8000fffe2028) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c206858,ffff8000fffe2028) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c206858,ffff8000fffe2028) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c206858,ffff8000fffe2028) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806c206858,ffff8000fffe2028) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff8000fffe2028) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff8000fffe2028,0,0,1) at exit1+0x58f sys/kern/kern_exit.c:214 sys_exit(ffff8000fffe2028,ffff8000393eee20,ffff8000393eed70) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff8000393eee20) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000393eee20) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75c5e6db9f90, 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(0xfffffd800b026b40, 0x0, 0, 1) -> e ddb{0}> trace dt_ioctl_record_stop(ffff800001490000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff8000fffe2028) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff8000fffe2028) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff8000393eeab0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061e4c0e0,81,fffffd80097fb478,ffff8000fffe2028) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c206858,ffff8000fffe2028) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c206858,ffff8000fffe2028) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c206858,ffff8000fffe2028) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806c206858,ffff8000fffe2028) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff8000fffe2028) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff8000fffe2028,0,0,1) at exit1+0x58f sys/kern/kern_exit.c:214 sys_exit(ffff8000fffe2028,ffff8000393eee20,ffff8000393eed70) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff8000393eee20) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000393eee20) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75c5e6db9f90, count: -12 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff8000393ee9e0 rbx 0xffffffff8171ccf0 dtclose rdx 0 rcx 0xffff8000fffe2028 rax 0xffffffff83852640 dt_prov_syscall r8 0x24 r9 0x6c r10 0x99a637dae51506ee r11 0x69706f76b654b285 r12 0xffff800000b30380 r13 0 r14 0 r15 0xffff800001516a00 rip 0xffffffff8171d0d0 dt_ioctl_record_stop+0xf0 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff8000393ee9b0 ss 0x10 dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 ddb{0}> show proc PROC (syz-executor) tid=63379 pid=46288 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=83, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000fffe2028 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000fffe2cf8,0xffff8000ffff2cf0 process=0xffff8000fffef8b8 user=0xffff8000393e9000, vmspace=0xfffffd800b026b40 estcpu=33, cpticks=2, pctcpu=0.2, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 89794 150756 15905 0 2 0 syz-executor 89794 222913 15905 0 3 0x4000080 fsleep syz-executor 2952 412314 87922 0 2 0x82000 syz-executor 2952 326741 87922 0 4 0x4082000 syz-executor 2952 168057 87922 0 3 0x4002000 suspend syz-executor 2952 229687 87922 0 4 0x4082000 syz-executor 53244 193865 99610 0 2 0 syz-executor 53244 123307 99610 0 3 0x4000080 fsleep syz-executor 70601 154521 89128 0 3 0x80 nanoslp syz-executor 70601 143192 89128 0 3 0x4000080 sbwait syz-executor 70601 227164 89128 0 3 0x4000080 fsleep syz-executor 51797 310798 0 0 3 0x14200 acct acct 96049 173722 76197 0 2 0x2 syz-executor 89128 188176 76197 0 2 0xc82 syz-executor 15905 127876 76197 0 3 0x82 nanoslp syz-executor 55413 95707 1 0 3 0x100083 ttyin getty 97896 228692 76197 0 2 0xc82 syz-executor 13998 381036 0 0 3 0x14200 bored sosplice 87922 124383 76197 0 3 0x82 nanoslp syz-executor 99610 481433 76197 0 3 0x82 nanoslp syz-executor 85884 465072 76197 0 2 0xc82 syz-executor 12125 99585 76197 0 2 0x2 syz-executor 76197 99514 51628 0 3 0x82 kqread syz-executor 51628 500297 12968 0 3 0x10008a sigsusp ksh 12968 242396 10502 0 3 0x98 kqread sshd-session 10502 95501 89354 0 3 0x92 kqread sshd-session 89354 444096 1 0 3 0x88 kqread sshd 9222 441032 87276 74 3 0x1100092 bpf pflogd 87276 153978 1 0 3 0x80 sbwait pflogd 53521 380798 76522 73 3 0x1100090 kqread syslogd 76522 324921 1 0 3 0x100082 sbwait syslogd 32296 322491 1 0 3 0x100080 kqread resolvd 8892 191905 48279 77 3 0x100092 kqread dhcpleased 1559 479795 48279 77 3 0x100092 kqread dhcpleased 48279 377493 1 0 3 0x80 kqread dhcpleased 75148 402670 0 0 3 0x14200 bored smr 921 210742 0 0 2 0x14200 zerothread 91810 54623 0 0 3 0x14200 aiodoned aiodoned 24752 315761 0 0 3 0x14200 syncer update 61797 111005 0 0 3 0x14200 cleaner cleaner 15075 92048 0 0 3 0x14200 reaper reaper 46649 509496 0 0 3 0x14200 pgdaemon pagedaemon 17289 261803 0 0 3 0x14200 bored viomb 79085 217161 0 0 3 0x40014200 acpi0 acpi0 23800 302436 0 0 7 0x40014200 idle1 89565 418245 0 0 3 0x14200 bored softnet3 25156 92644 0 0 3 0x14200 bored softnet2 50580 303358 0 0 3 0x14200 bored softnet1 85351 485787 0 0 2 0x14200 softnet0 27290 336880 0 0 3 0x14200 bored systqmp 42024 235889 0 0 3 0x14200 bored systq 92150 35220 0 0 2 0x14200 softclockmp 95617 517808 0 0 2 0x40014200 softclock 79583 348287 0 0 3 0x40014200 idle0 1 1194 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 96049 (syz-executor) thread 0xffff8000ffff3720 (173722) exclusive rrwlock inode r = 0 (0xfffffd807b2008c0) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e9e4bf0) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3094 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 Process 12125 (syz-executor) thread 0xffff80002a292ce8 (99585) exclusive rrwlock inode r = 0 (0xfffffd806fd03530) #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 vget+0x2bd sys/kern/vfs_subr.c:693 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x21b sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1864 #12 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10223 11235K 15199K 166960K 13874 0 pcb 19 12K 12K 166960K 179 0 rtable 216 9K 10K 166960K 634 0 pf 41 19K 81K 166960K 154 0 ifaddr 41 7K 8K 166960K 110 0 ifgroup 55 2K 2K 166960K 187 0 sysctl 4 1K 9K 166960K 15 0 counters 68 36K 37K 166960K 174 0 ioctlops 0 0K 4K 166960K 1728 0 iov 0 0K 16K 166960K 51 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1468 92K 92K 166960K 2526 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 16 0 VM map 2 1K 1K 166960K 2 0 sem 18 5K 6K 166960K 31 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 240K 166960K 1197 0 sigio 0 0K 0K 166960K 22 0 proc 73 103K 128K 166960K 736 0 subproc 72 4K 5K 166960K 117 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 259 0 in_multi 85 6K 7K 166960K 185 0 ether_multi 1 0K 0K 166960K 8 0 mrt 2 0K 0K 166960K 5 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 655 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 238 164K 173K 166960K 12238 0 UVM aobj 28 2K 2K 166960K 29 0 pinsyscall 41 82K 104K 166960K 2430 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 62 0 NDP 12 0K 2K 166960K 74 0 temp 69 8682K 8752K 166960K 58347 0 kqueue 14 22K 30K 166960K 214 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 120 175 0 172 3 2 1 3 0 8 0 rtentry 176 177 0 85 6 0 6 6 0 8 0 unpcb 144 898 0 877 11 3 8 8 0 8 7 syncache 336 10 0 10 4 3 1 1 0 8 1 tcpqe 32 5 0 5 3 2 1 1 0 8 1 tcpcb 808 584 0 572 17 9 8 8 0 8 6 arp 128 26 0 8 1 0 1 1 0 8 0 inpcb 384 1558 0 1543 21 11 10 11 0 8 8 nd6 144 40 0 19 1 0 1 1 0 8 0 pkpcb 40 16 0 15 2 1 1 1 0 8 0 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1192 31 0 31 2 1 1 1 0 8 1 pppxif 1504 9 0 9 3 2 1 1 0 8 1 pffrag 232 14 0 6 1 0 1 1 0 482 0 pffrnode 88 14 0 6 1 0 1 1 0 8 0 pffrent 40 88 0 80 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 5 0 1 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 3 0 0 1 0 1 1 0 8 0 pfstitem 24 79 0 28 1 0 1 1 0 8 0 pfstkey 128 79 0 28 2 0 2 2 0 8 0 pfstate 384 79 0 28 6 0 6 6 0 8 0 pfrule 1344 24 0 17 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 763 0 367 34 6 28 29 0 8 0 art_table 32 765 0 367 4 0 4 4 0 8 0 art_node 16 174 0 93 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 13 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 22 0 6 1 0 1 1 0 8 0 shmpl 112 26 0 1 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 3425 0 1913 95 0 95 95 0 8 0 ffsino 288 3425 0 1913 109 0 109 109 0 8 0 nchpl 144 5029 0 3327 64 0 64 64 0 8 0 rtmask 32 4 0 4 2 1 1 1 0 8 1 uvmvnodes 80 4257 0 0 87 0 87 87 0 8 0 vnodes 216 4257 0 0 237 0 237 237 0 8 0 namei 1024 19125 0 19124 2 1 1 2 0 8 0 percpumem 16 102 0 53 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 100 0 74 3 0 3 3 0 8 1 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 8 0 8 2 1 1 1 0 8 1 scxspl 216 15051 0 15051 7 6 1 5 1 8 1 plimitpl 152 176 0 159 1 0 1 1 0 8 0 sigapl 424 1516 0 1466 10 3 7 9 0 8 0 knotepl 120 564 0 0 17 0 17 17 0 8 0 kqueuepl 224 452 0 440 7 4 3 3 0 8 2 pipepl 336 231 0 204 6 3 3 6 0 8 0 fdescpl 520 1472 0 1442 3 0 3 3 0 8 0 filepl 160 9802 0 9574 19 1 18 18 0 8 7 lockfpl 104 267 0 265 1 0 1 1 0 8 0 lockfspl 48 110 0 108 1 0 1 1 0 8 0 sessionpl 144 33 0 24 1 0 1 1 0 8 0 pgrppl 48 56 0 39 1 0 1 1 0 8 0 ucredpl 104 1268 0 1255 1 0 1 1 0 8 0 zombiepl 144 1468 0 1466 1 0 1 1 0 8 0 processpl 1208 1516 0 1466 6 1 5 6 0 8 0 procpl 656 3050 0 2993 8 2 6 8 0 8 0 srpgc 96 6 0 6 1 1 0 1 0 8 0 sosppl 168 6 0 6 3 2 1 1 0 8 1 sockpl 728 2680 0 2639 23 11 12 21 0 8 7 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 111 0 0 14 0 14 14 0 8 0 mcl2k 2048 31 0 0 4 0 4 4 0 8 0 mtagpl 96 60 0 0 2 0 2 2 0 8 0 mbufpl 256 287 0 0 16 0 16 16 0 8 0 bufpl 280 4350 0 159 300 0 300 300 0 8 0 anonpl 32 10313 0 0 85 1 84 84 0 246 0 amapchunkpl 152 39867 0 39347 35 7 28 34 0 158 4 amappl16 200 3409 0 3373 30 26 4 15 0 8 1 amappl15 192 10 0 9 1 0 1 1 0 8 0 amappl14 184 135 0 123 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 2196 0 2166 4 2 2 3 0 8 0 amappl11 160 48 0 34 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 246 0 246 1 1 0 1 0 8 0 amappl8 136 29 0 26 1 0 1 1 0 8 0 amappl7 128 126 0 114 1 0 1 1 0 8 0 amappl6 120 222 0 219 1 0 1 1 0 8 0 amappl5 112 144 0 134 1 0 1 1 0 8 0 amappl4 104 354 0 334 1 0 1 1 0 8 0 amappl3 96 8133 0 8027 5 1 4 4 0 8 0 amappl2 88 756 0 693 2 0 2 2 0 8 0 amappl1 80 14535 0 13934 18 3 15 15 0 8 1 amappl 88 11233 0 11070 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 28 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1472 0 1442 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1472 0 1442 1 0 1 1 0 8 0 vmmpekpl 168 12994 0 12942 3 0 3 3 0 8 0 vmmpepl 168 96947 0 94987 109 11 98 101 0 357 3 vmsppl 480 1471 0 1442 6 1 5 5 0 8 0 rwobjpl 72 30415 0 25197 97 0 97 97 0 8 1 pdppl 4096 2952 0 2884 118 46 72 88 0 8 4 pvpl 32 18405 0 0 149 0 149 149 0 265 0 pmappl 256 1471 0 1442 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 433 0 70 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace dt_ioctl_record_stop(ffff800001490000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff8000fffe2028) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff8000fffe2028) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff8000393eeab0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061e4c0e0,81,fffffd80097fb478,ffff8000fffe2028) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c206858,ffff8000fffe2028) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c206858,ffff8000fffe2028) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c206858,ffff8000fffe2028) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806c206858,ffff8000fffe2028) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff8000fffe2028) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff8000fffe2028,0,0,1) at exit1+0x58f sys/kern/kern_exit.c:214 sys_exit(ffff8000fffe2028,ffff8000393eee20,ffff8000393eed70) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff8000393eee20) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000393eee20) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75c5e6db9f90, count: -12 ddb{0}> machine ddbcpu 1