uvm_fault(0xfffffd800dfb79a8, 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 329981 32628 0 0x14000 0x200 0 reaper dt_ioctl_record_stop(ffff80000160d000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(21e5f,1,2000,ffff8000347f9730) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,1,2000,ffff8000347f9730) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a3533f0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806b976b48,1,fffffd80097fb068,ffff8000347f9730) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8068ad2d68,ffff8000347f9730) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8068ad2d68,ffff8000347f9730) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8068ad2d68,ffff8000347f9730) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd8068ad2d68,ffff8000347f9730) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff8000347f9730) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff8000347f9730,b,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff8000347f9730,ffff80002a353760,ffff80002a3536b0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a353760) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a353760) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7aa97bf8a3d0, 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(0xfffffd800dfb79a8, 0x0, 0, 1) -> e ddb{1}> trace dt_ioctl_record_stop(ffff80000160d000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(21e5f,1,2000,ffff8000347f9730) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,1,2000,ffff8000347f9730) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a3533f0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806b976b48,1,fffffd80097fb068,ffff8000347f9730) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8068ad2d68,ffff8000347f9730) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8068ad2d68,ffff8000347f9730) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8068ad2d68,ffff8000347f9730) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd8068ad2d68,ffff8000347f9730) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff8000347f9730) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff8000347f9730,b,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff8000347f9730,ffff80002a353760,ffff80002a3536b0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a353760) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a353760) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7aa97bf8a3d0, count: -12 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a353320 rbx 0xffffffff8158fb30 dtclose rdx 0 rcx 0xffff8000347f9730 rax 0xffffffff837d08f0 dt_prov_static r8 0x90 r9 0x1 r10 0x8b3d32718455d640 r11 0x1f85863a6df02514 r12 0xffffffff837d1090 dt_static_uvm_malloc r13 0 r14 0 r15 0xffff800000b41c00 rip 0xffffffff8158ff10 dt_ioctl_record_stop+0xf0 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff80002a3532f0 ss 0 dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 ddb{1}> show proc PROC (syz-executor) tid=476405 pid=14793 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=85, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000347f9730 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003ac0c028,0xffff80003c4ed758 process=0xffff80003ac16c00 user=0xffff80002a34e000, vmspace=0xfffffd800dfb79a8 estcpu=35, cpticks=6, pctcpu=0.3, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 90738 129291 74905 0 2 0 syz-executor 35573 262656 60152 0 2 0 syz-executor 35573 8033 60152 0 3 0x4000080 ttyin syz-executor 35573 28803 60152 0 3 0x4000080 fsleep syz-executor 46346 186607 15940 0 3 0x80 nanoslp syz-executor 46346 272951 15940 0 3 0x4000080 ttyretype syz-executor 46346 446865 15940 0 3 0x4000080 fsleep syz-executor 46346 499800 15940 0 3 0x4000080 fsleep syz-executor 46346 41330 15940 0 3 0x4000080 fsleep syz-executor 16068 12894 95167 0 3 0x80 nanoslp syz-executor 16068 159796 95167 0 3 0x4000080 kqread syz-executor 16068 331682 95167 0 3 0x4000080 fsleep syz-executor 16068 344848 95167 0 3 0x4000080 fsleep syz-executor 25026 51338 39709 0 3 0x80 nanoslp syz-executor 25026 368933 39709 0 2 0x4000000 syz-executor 25026 294690 39709 0 3 0x4000000 inode syz-executor 25026 265365 39709 0 3 0x4000080 fsleep syz-executor 8859 107441 5809 0 4 0x82000 syz-executor 8859 434383 5809 0 2 0x4082000 syz-executor 8859 221126 5809 0 3 0x4002000 suspend syz-executor 84665 190756 13259 0 3 0 uvn_get syz-executor 84665 335950 13259 0 3 0x4000000 biowait syz-executor 84665 326954 13259 0 3 0x4000000 inode syz-executor 84665 315676 13259 0 3 0x4000000 uvn_get syz-executor 15940 196718 67369 0 3 0x82 nanoslp syz-executor 95167 113673 67369 0 3 0x82 nanoslp syz-executor 13259 392610 67369 0 3 0x82 wait syz-executor 5809 411105 67369 0 3 0x82 wait syz-executor 36796 294959 0 0 3 0x14280 nfsidl nfsio 92240 32750 0 0 3 0x14280 nfsidl nfsio 52299 484438 0 0 3 0x14280 nfsidl nfsio 78456 249120 0 0 3 0x14280 nfsidl nfsio 60138 411240 0 0 3 0x14280 nfsidl nfsio 17994 448158 0 0 3 0x14280 nfsidl nfsio 2263 387695 0 0 3 0x14280 nfsidl nfsio 92142 65494 0 0 3 0x14280 nfsidl nfsio 81218 511754 0 0 3 0x14280 nfsidl nfsio 69520 505129 0 0 3 0x14280 nfsidl nfsio 35830 420168 0 0 3 0x14280 nfsidl nfsio 97912 143752 0 0 3 0x14280 nfsidl nfsio 73040 11963 0 0 3 0x14280 nfsidl nfsio 85747 71048 0 0 3 0x14280 nfsidl nfsio 97068 11718 0 0 3 0x14280 nfsidl nfsio 92828 355843 0 0 3 0x14280 nfsidl nfsio 35742 343867 0 0 3 0x14280 nfsidl nfsio 4835 91873 0 0 3 0x14280 nfsidl nfsio 80946 173490 0 0 3 0x14280 nfsidl nfsio 30320 128731 0 0 3 0x14280 nfsidl nfsio 39709 371938 67369 0 3 0x82 nanoslp syz-executor 60152 513514 67369 0 3 0x82 nanoslp syz-executor 40985 102179 0 0 3 0x14200 bored sosplice 74905 414613 67369 0 3 0x82 nanoslp syz-executor 23919 341334 67369 0 3 0x82 nanoslp syz-executor 67369 176100 53920 0 3 0x82 kqread syz-executor 53920 34214 30129 0 3 0x10008a sigsusp ksh 30129 308573 77632 0 3 0x98 kqread sshd-session 77632 81701 3059 0 3 0x92 kqread sshd-session 14576 434680 1 0 3 0x100083 ttyin getty 3059 180296 1 0 3 0x88 kqread sshd 91553 458709 10374 74 3 0x1100092 bpf pflogd 10374 425960 1 0 3 0x80 sbwait pflogd 30660 106552 49116 73 3 0x1100090 kqread syslogd 49116 102720 1 0 3 0x100082 sbwait syslogd 88559 364145 1 0 3 0x100080 kqread resolvd 37203 17327 84262 77 3 0x100092 kqread dhcpleased 65607 159900 84262 77 3 0x100092 kqread dhcpleased 84262 335756 1 0 3 0x80 kqread dhcpleased 12424 321866 0 0 3 0x14200 bored smr 43446 251300 0 0 3 0x14200 pgzero zerothread 55670 148631 0 0 3 0x14200 aiodoned aiodoned 3508 472910 0 0 3 0x14200 syncer update 93860 478902 0 0 3 0x14200 cleaner cleaner 32628 329981 0 0 7 0x14200 reaper 5520 192661 0 0 3 0x14200 pgdaemon pagedaemon 38477 206442 0 0 3 0x14200 bored viomb 87375 347072 0 0 3 0x40014200 acpi0 acpi0 54898 245848 0 0 3 0x40014200 idle1 73375 407887 0 0 3 0x14200 bored softnet7 12121 297298 0 0 3 0x14200 bored softnet6 58513 246200 0 0 3 0x14200 bored softnet5 14822 235524 0 0 3 0x14200 bored softnet4 78815 29142 0 0 3 0x14200 bored softnet3 18934 31827 0 0 3 0x14200 bored softnet2 5626 354085 0 0 3 0x14200 bored softnet1 31703 59975 0 0 3 0x14200 bored softnet0 34576 171494 0 0 3 0x14200 bored systqmp 88138 146388 0 0 3 0x14200 bored systq 13459 173322 0 0 3 0x14200 tmoslp softclockmp 95460 166237 0 0 3 0x40014200 tmoslp softclock 28536 229833 0 0 3 0x40014200 idle0 1 359681 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff83a089b8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvm_pmr_freepageq+0x15c sys/uvm/uvm_pmemrange.c:1371 #4 km_free+0x36f sys/uvm/uvm_km.c:827 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 #6 reaper+0x1cb sys/kern/kern_exit.c:493 #7 proc_trampoline+0x10 Process 90738 (syz-executor) thread 0xffff80003c4ec2c8 (129291) Process 25026 (syz-executor) thread 0xffff80002a2a8a58 (368933) Process 25026 (syz-executor) thread 0xffff8000347f8a60 (294690) Process 8859 (syz-executor) thread 0xffff80003ac0cf88 (434383) Process 84665 (syz-executor) thread 0xffff8000347f9c50 (335950) Process 84665 (syz-executor) thread 0xffff8000347f99c0 (326954) Process 84665 (syz-executor) thread 0xffff80003ac0dc58 (315676) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10257 11077K 21395K 166960K 16291 0 pcb 17 18K 20K 166960K 794 0 rtable 246 15K 15K 166960K 1101 0 pf 41 19K 83K 166960K 338 0 ifaddr 42 9K 10K 166960K 232 0 ifgroup 59 2K 3K 166960K 393 0 sysctl 4 1K 9K 166960K 96 0 counters 70 37K 38K 166960K 496 0 ioctlops 0 0K 4K 166960K 2206 0 iov 1 12K 24K 166960K 496 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1515 95K 95K 166960K 5147 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 48K 48K 166960K 12 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 301 0 dirhash 12 2K 2K 166960K 81 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 3589 0 sigio 0 0K 0K 166960K 94 0 proc 72 115K 180K 166960K 1303 0 subproc 72 4K 4K 166960K 191 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 410 0 in_multi 81 6K 7K 166960K 354 0 ether_multi 1 0K 0K 166960K 20 0 mrt 1 0K 0K 166960K 22 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 265 1182K 1182K 166960K 265 0 exec 0 0K 1K 166960K 984 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 6 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 274 171K 190K 166960K 33368 0 UVM aobj 53 4K 4K 166960K 61 0 pinsyscall 43 86K 103K 166960K 4983 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 175 0 NDP 13 0K 2K 166960K 172 0 temp 83 8684K 8812K 166960K 175298 0 kqueue 16 26K 33K 166960K 693 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 120 355 0 352 3 2 1 3 0 8 0 rtentry 176 357 0 269 5 0 5 5 0 8 0 unpcb 144 2889 0 2865 28 26 2 9 0 8 0 syncache 336 15 0 15 7 7 0 1 0 8 0 tcpqe 32 10 0 10 6 6 0 1 0 8 0 tcpcb 736 1100 0 1090 31 29 2 7 0 8 1 arp 128 42 0 28 1 0 1 1 0 8 0 inpcb 328 3979 0 3965 53 50 3 12 0 8 1 nd6 144 58 0 43 1 0 1 1 0 8 0 pkpcb 40 29 0 29 12 12 0 1 0 8 0 kcovpl 48 21 0 13 1 0 1 1 0 8 0 mppekey 1024 2 0 2 2 2 0 1 0 8 0 ppxss 1192 174 0 174 7 6 1 1 0 8 1 pppxif 1504 12 0 12 9 8 1 1 0 8 1 pfstscr 40 4 0 2 1 0 1 1 0 8 0 pffrag 232 33 0 30 2 1 1 1 0 482 0 pffrnode 88 32 0 29 2 1 1 1 0 8 0 pffrent 40 59 0 56 2 1 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfstitem 24 323 0 238 1 0 1 1 0 8 0 pfstkey 128 325 0 240 3 0 3 3 0 8 0 pfstate 384 322 0 239 13 4 9 11 0 8 0 pfrule 1344 30 0 25 2 1 1 2 0 8 0 rttmr 136 6 0 6 5 5 0 1 0 8 0 art_heap8 4096 8 0 3 7 2 5 5 0 8 0 art_heap4 256 1463 0 1048 42 16 26 31 0 8 0 art_table 40 1471 0 1051 5 0 5 5 0 8 0 art_node 32 320 0 247 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 9 2 1 1 1 0 8 0 semupl 112 4 0 4 4 4 0 1 0 8 0 semapl 112 292 0 282 1 0 1 1 0 8 0 shmpl 112 58 0 8 2 0 2 2 0 8 0 dirhash 1024 64 0 47 3 0 3 3 0 8 0 dino2pl 256 8243 0 6714 97 0 97 97 0 8 0 ffsino 296 8243 0 6714 119 0 119 119 0 8 0 nchpl 144 13012 0 11289 65 0 65 65 0 8 0 rtmask 32 30 0 30 11 11 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 48120 0 48119 7 5 2 2 0 8 1 percpumem 16 263 0 213 1 0 1 1 0 8 0 kstatmem 264 262 0 232 5 2 3 3 0 8 0 acpiwqpl 32 3 0 3 1 0 1 1 1 8 1 scsiplug 72 15 0 15 10 9 1 1 0 8 1 scxspl 216 123630 0 123629 23 21 2 8 1 8 1 plimitpl 152 1087 0 1065 1 0 1 1 0 8 0 sigapl 424 3849 0 3774 11 2 9 9 0 8 0 knotepl 120 840 0 0 26 1 25 25 0 8 0 kqueuepl 224 1370 0 1357 8 7 1 5 0 8 0 pipepl 344 692 0 664 24 20 4 9 0 8 0 fdescpl 528 3781 0 3749 3 0 3 3 0 8 0 filepl 160 27918 0 27680 52 39 13 21 0 8 0 lockfpl 104 2343 0 2337 7 6 1 4 0 8 0 lockfspl 48 853 0 848 1 0 1 1 0 8 0 sessionpl 144 45 0 36 1 0 1 1 0 8 0 pgrppl 48 126 0 109 1 0 1 1 0 8 0 ucredpl 104 4935 0 4922 1 0 1 1 0 8 0 zombiepl 144 5097 0 5096 2 1 1 1 0 8 0 processpl 1248 3849 0 3774 6 0 6 6 0 8 0 procpl 656 9380 0 9288 11 2 9 9 0 8 1 sosppl 168 23 0 23 10 9 1 1 0 8 1 sockpl 752 7329 0 7288 91 84 7 24 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 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 125 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 73 0 0 7 0 7 7 0 8 0 mtagpl 96 30 0 0 1 0 1 1 0 8 0 mbufpl 256 1337 0 0 74 0 74 74 0 8 0 bufpl 280 56767 0 50625 440 0 440 440 0 8 0 anonpl 32 16347 0 0 131 0 131 131 0 246 0 amapchunkpl 152 116028 0 115374 90 59 31 38 0 158 5 amappl16 200 16094 0 15555 140 111 29 36 0 8 0 amappl15 192 8 0 8 2 2 0 1 0 8 0 amappl14 184 160 0 148 1 0 1 1 0 8 0 amappl13 176 12 0 12 3 3 0 1 0 8 0 amappl12 168 4638 0 4606 4 2 2 3 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 9 0 9 2 2 0 1 0 8 0 amappl9 144 252 0 252 1 1 0 1 0 8 0 amappl8 136 29 0 26 1 0 1 1 0 8 0 amappl7 128 219 0 206 1 0 1 1 0 8 0 amappl6 120 318 0 314 1 0 1 1 0 8 0 amappl5 112 177 0 167 1 0 1 1 0 8 0 amappl4 104 350 0 328 1 0 1 1 0 8 0 amappl3 96 23956 0 23827 4 0 4 4 0 8 0 amappl2 88 908 0 840 2 0 2 2 0 8 0 amappl1 80 24983 0 24388 19 4 15 16 0 8 0 amappl 88 31742 0 31545 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 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 14 0 14 6 6 0 1 0 8 0 dma128 128 258 0 258 5 4 1 1 0 8 1 dma64 64 8 0 8 3 3 0 1 0 8 0 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 60 0 8 1 0 1 1 0 8 0 uaddrrnd 24 3781 0 3749 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3781 0 3749 1 0 1 1 0 8 0 vmmpekpl 168 29318 0 29257 3 0 3 3 0 8 0 vmmpepl 168 243907 0 241298 175 58 117 119 0 357 3 vmsppl 488 3780 0 3749 6 1 5 5 0 8 0 rwobjpl 80 71623 0 64157 165 10 155 155 0 8 2 pdppl 4096 7569 0 7498 157 86 71 85 0 8 0 pvpl 32 25755 0 0 207 0 207 207 0 265 0 pmappl 256 3780 0 3749 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 464 0 155 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83868ff0) 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(ffffffff838ead30) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838ead30) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a258650,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_const_cmp4(2,0) at __sanitizer_cov_trace_const_cmp4+0x3a sys/dev/kcov.c:231 msleep_nsec(ffffffff837d7008,ffffffff837d6fd0,4,ffffffff833e90a0,ffffffffffffffff) at msleep_nsec+0xb1 sys/kern/kern_synch.c:188 reaper(ffff8000ffffcf68) at reaper+0x14b sys/kern/kern_exit.c:477 end trace frame: 0x0, count: 6 ddb{0}> trace x86_ipi_db(ffffffff83868ff0) 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(ffffffff838ead30) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838ead30) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a258650,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_const_cmp4(2,0) at __sanitizer_cov_trace_const_cmp4+0x3a sys/dev/kcov.c:231 msleep_nsec(ffffffff837d7008,ffffffff837d6fd0,4,ffffffff833e90a0,ffffffffffffffff) at msleep_nsec+0xb1 sys/kern/kern_synch.c:188 reaper(ffff8000ffffcf68) at reaper+0x14b sys/kern/kern_exit.c:477 end trace frame: 0x0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 dt_ioctl_record_stop(ffff80000160d000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(21e5f,1,2000,ffff8000347f9730) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,1,2000,ffff8000347f9730) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a3533f0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806b976b48,1,fffffd80097fb068,ffff8000347f9730) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8068ad2d68,ffff8000347f9730) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8068ad2d68,ffff8000347f9730) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8068ad2d68,ffff8000347f9730) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd8068ad2d68,ffff8000347f9730) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff8000347f9730) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff8000347f9730,b,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff8000347f9730,ffff80002a353760,ffff80002a3536b0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a353760) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a353760) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7aa97bf8a3d0, count: 3 ddb{1}> trace dt_ioctl_record_stop(ffff80000160d000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(21e5f,1,2000,ffff8000347f9730) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,1,2000,ffff8000347f9730) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a3533f0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806b976b48,1,fffffd80097fb068,ffff8000347f9730) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8068ad2d68,ffff8000347f9730) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8068ad2d68,ffff8000347f9730) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8068ad2d68,ffff8000347f9730) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd8068ad2d68,ffff8000347f9730) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff8000347f9730) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff8000347f9730,b,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff8000347f9730,ffff80002a353760,ffff80002a3536b0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a353760) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a353760) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7aa97bf8a3d0, count: -12