login: uvm_fault(0xfffffd806b8efb90, 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 502106 51723 0 0 0x4000000 0 syz-executor dt_ioctl_record_stop(ffff80000147f000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80002a2ac020) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80002a2ac020) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a39d330) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8059d5b450,1,fffffd80097fb340,ffff80002a2ac020) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80692aae28,ffff80002a2ac020) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80692aae28,ffff80002a2ac020) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80692aae28,ffff80002a2ac020) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd80692aae28,ffff80002a2ac020) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80002a2ac020) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80002a2ac020,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a2ac020,ffff80002a39d6a0,ffff80002a39d5f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a39d6a0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a39d6a0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78314c365d10, 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(0xfffffd806b8efb90, 0x0, 0, 1) -> e ddb{1}> trace dt_ioctl_record_stop(ffff80000147f000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80002a2ac020) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80002a2ac020) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a39d330) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8059d5b450,1,fffffd80097fb340,ffff80002a2ac020) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80692aae28,ffff80002a2ac020) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80692aae28,ffff80002a2ac020) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80692aae28,ffff80002a2ac020) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd80692aae28,ffff80002a2ac020) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80002a2ac020) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80002a2ac020,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a2ac020,ffff80002a39d6a0,ffff80002a39d5f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a39d6a0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a39d6a0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78314c365d10, count: -12 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a39d260 rbx 0xffffffff81c96f00 dtclose rdx 0 rcx 0xffff80002a2ac020 rax 0xffffffff83828c18 dt_prov_syscall r8 0x90 r9 0x1 r10 0x3bd775ef87a873ee r11 0xda24b19999fa88a6 r12 0xffff80000003c400 r13 0 r14 0 r15 0xffff8000014a6400 rip 0xffffffff81c972e0 dt_ioctl_record_stop+0xf0 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff80002a39d230 ss 0x10 dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 ddb{1}> show proc PROC (syz-executor) tid=151099 pid=52142 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a2ac020 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003c473220,0xffff80002a2ad220 process=0xffff80002a2fb5c8 user=0xffff80002a398000, vmspace=0xfffffd806b8efb90 estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 51723 103123 53288 0 3 0x80 fsleep syz-executor 51723 502106 53288 0 7 0x4000000 syz-executor 94047 263319 65561 0 3 0x80 fsleep syz-executor 94047 380846 65561 0 3 0x4000080 netcon syz-executor 89297 230083 42905 0 3 0x80 fsleep syz-executor 89297 159759 42905 0 3 0x4000080 pipewr syz-executor 98077 218724 28375 0 3 0x80 fsleep syz-executor 98077 56267 28375 0 3 0x4000080 sbwait syz-executor 27121 109375 25915 0 3 0x80 fsleep syz-executor 27121 488853 25915 0 3 0x4000080 kqsel syz-executor 28912 10867 66272 0 3 0x80 fsleep syz-executor 28912 374795 66272 0 3 0x4000080 sbwait syz-executor 14174 149598 3271 0 3 0x82 nanoslp syz-executor 92150 214060 1 0 3 0x100083 ttyin getty 56076 259067 0 0 3 0x14200 acct acct 66272 147627 3271 0 3 0x82 nanoslp syz-executor 65561 21715 3271 0 3 0x82 nanoslp syz-executor 6420 418257 67813 0 3 0x82 sbwait sshd-session 90717 263627 0 0 3 0x14200 bored sosplice 24801 337205 3271 0 3 0x82 nanoslp syz-executor 42905 88933 3271 0 3 0x82 nanoslp syz-executor 25915 377476 3271 0 3 0x82 nanoslp syz-executor 28375 381234 3271 0 3 0x82 nanoslp syz-executor 53288 458015 3271 0 3 0x82 nanoslp syz-executor 3271 512166 13442 0 2 0x2 syz-executor 13442 231788 55782 0 3 0x10008a sigsusp ksh 55782 458799 95873 0 3 0x98 kqread sshd-session 95873 17755 67813 0 3 0x92 kqread sshd-session 67813 81986 1 0 3 0x88 kqread sshd 47441 254046 31520 74 3 0x1100092 bpf pflogd 31520 496265 1 0 3 0x80 sbwait pflogd 68197 506347 89160 73 3 0x1100090 kqread syslogd 89160 435851 1 0 3 0x100082 sbwait syslogd 26201 23468 1 0 3 0x100080 kqread resolvd 45840 251048 43081 77 3 0x100092 kqread dhcpleased 85593 352831 43081 77 3 0x100092 kqread dhcpleased 43081 87074 1 0 3 0x80 kqread dhcpleased 16374 207607 0 0 3 0x14200 bored smr 94106 358032 0 0 3 0x14200 pgzero zerothread 46414 181012 0 0 3 0x14200 aiodoned aiodoned 72887 333595 0 0 3 0x14200 syncer update 41658 74887 0 0 3 0x14200 cleaner cleaner 20775 262613 0 0 2 0x14200 reaper 1993 465449 0 0 3 0x14200 pgdaemon pagedaemon 24345 300620 0 0 3 0x14200 bored viomb 4143 389878 0 0 3 0x40014200 acpi0 acpi0 13745 417092 0 0 3 0x40014200 idle1 28382 522710 0 0 3 0x14200 bored softnet7 4065 438430 0 0 3 0x14200 bored softnet6 79868 215569 0 0 3 0x14200 bored softnet5 61204 332231 0 0 3 0x14200 bored softnet4 19196 200620 0 0 3 0x14200 bored softnet3 36255 264700 0 0 3 0x14200 bored softnet2 266 319217 0 0 3 0x14200 bored softnet1 58750 508753 0 0 3 0x14200 bored softnet0 1757 377337 0 0 3 0x14200 bored systqmp 15617 243047 0 0 3 0x14200 bored systq 43071 407083 0 0 3 0x14200 tmoslp softclockmp 7853 191183 0 0 3 0x40014200 tmoslp softclock 75291 243692 0 0 3 0x40014200 idle0 1 338069 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 20775 (reaper) thread 0xffff8000ffffc008 (262613) exclusive rwlock kmmaplk r = 0 (0xffffffff839dc7c0) #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+0x42b sys/kern/kern_rwlock.c:319 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvm_unmap+0x81 sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:831 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 #6 reaper+0x1cb sys/kern/kern_exit.c:493 #7 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10247 11153K 11524K 166960K 13901 0 pcb 17 16K 18K 166960K 418 0 rtable 195 13K 13K 166960K 521 0 pf 39 18K 82K 166960K 279 0 ifaddr 38 7K 7K 166960K 132 0 ifgroup 59 2K 3K 166960K 218 0 sysctl 4 1K 9K 166960K 15 0 counters 70 37K 38K 166960K 260 0 ioctlops 0 0K 4K 166960K 2001 0 iov 0 0K 26K 166960K 84 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1498 94K 94K 166960K 3333 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 10K 14K 166960K 28 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 47 0 dirhash 12 2K 3K 166960K 57 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 1777 0 sigio 0 0K 0K 166960K 39 0 proc 73 115K 163K 166960K 782 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 302 0 in_multi 74 5K 7K 166960K 210 0 ether_multi 1 0K 0K 166960K 18 0 mrt 1 0K 0K 166960K 14 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 524 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 267 170K 186K 166960K 17688 0 UVM aobj 109 5K 5K 166960K 114 0 pinsyscall 45 90K 100K 166960K 2947 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 77 0 NDP 13 0K 2K 166960K 93 0 temp 81 8684K 8940K 166960K 76532 0 kqueue 13 20K 33K 166960K 367 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 120 197 0 194 2 1 1 2 0 8 0 rtentry 176 161 0 97 5 0 5 5 0 8 0 unpcb 144 1650 0 1625 8 6 2 6 0 8 0 syncache 336 5 0 5 1 1 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 639 0 631 16 12 4 11 0 8 2 arp 128 14 0 6 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 328 2245 0 2232 22 15 7 14 0 8 4 nd6 144 25 0 13 1 0 1 1 0 8 0 pkpcb 40 83 0 83 4 3 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1192 78 0 78 2 1 1 1 0 8 1 pppxif 1504 4 0 4 3 2 1 1 0 8 1 pfstscr 40 6 0 4 1 0 1 1 0 8 0 pffrag 232 6 0 2 1 0 1 1 0 482 0 pffrnode 88 5 0 1 1 0 1 1 0 8 0 pffrent 40 12 0 8 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 2 0 2 2 2 0 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pfqueue 320 2 0 2 1 1 0 1 0 8 0 pfstitem 24 126 0 33 1 0 1 1 0 8 0 pfstkey 128 132 0 37 4 0 4 4 0 8 0 pfstate 384 126 0 35 10 0 10 10 0 8 0 pfrule 1344 33 0 27 2 1 1 2 0 8 0 rttmr 136 4 0 4 2 2 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 841 0 504 31 7 24 30 0 8 0 art_table 40 844 0 504 5 0 5 5 0 8 0 art_node 32 155 0 100 1 0 1 1 0 8 0 sysvmsgpl 40 79 0 74 1 0 1 1 0 8 0 semupl 112 3 0 3 2 2 0 1 0 8 0 semapl 112 45 0 35 1 0 1 1 0 8 0 shmpl 112 111 0 5 4 0 4 4 0 8 0 dirhash 1024 47 0 30 3 0 3 3 0 8 0 dino2pl 256 4800 0 3294 95 0 95 95 0 8 0 ffsino 296 4800 0 3294 117 0 117 117 0 8 0 nchpl 144 7215 0 5514 64 0 64 64 0 8 0 rtmask 32 27 0 27 1 1 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 25847 0 25847 3 2 1 2 0 8 1 percpumem 16 145 0 95 1 0 1 1 0 8 0 kstatmem 264 148 0 116 3 0 3 3 0 8 0 scsiplug 72 13 0 13 2 2 0 1 0 8 0 scxspl 216 58796 0 58796 12 10 2 8 1 8 2 plimitpl 152 351 0 334 1 0 1 1 0 8 0 sigapl 424 2101 0 2044 9 2 7 9 0 8 0 knotepl 120 539 0 0 16 0 16 16 0 8 0 kqueuepl 224 789 0 779 6 5 1 5 0 8 0 pipepl 344 484 0 456 22 13 9 9 0 8 6 fdescpl 528 2054 0 2021 3 0 3 3 0 8 0 filepl 160 15348 0 15119 28 10 18 19 0 8 6 lockfpl 104 1259 0 1257 4 3 1 3 0 8 0 lockfspl 48 543 0 541 2 1 1 2 0 8 0 sessionpl 144 28 0 18 1 0 1 1 0 8 0 pgrppl 48 65 0 47 1 0 1 1 0 8 0 ucredpl 104 2361 0 2348 1 0 1 1 0 8 0 zombiepl 144 2065 0 2063 1 0 1 1 0 8 0 processpl 1248 2101 0 2044 6 0 6 6 0 8 0 procpl 656 4865 0 4799 8 1 7 8 0 8 0 sosppl 168 14 0 14 3 3 0 1 0 8 0 sockpl 752 4347 0 4306 45 34 11 26 0 8 5 mcl64k 65536 9 0 0 2 0 2 2 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 115 0 0 15 1 14 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 30 0 0 4 0 4 4 0 8 0 mtagpl 96 44 0 0 2 0 2 2 0 8 0 mbufpl 256 267 0 0 17 0 17 17 0 8 0 bufpl 280 24345 0 18203 439 0 439 439 0 8 0 anonpl 32 16273 0 0 132 0 132 132 0 246 0 amapchunkpl 152 61078 0 60455 44 18 26 33 0 158 1 amappl16 200 8678 0 8413 95 68 27 35 0 8 5 amappl15 192 8 0 7 1 0 1 1 0 8 0 amappl14 184 122 0 109 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 2747 0 2714 3 1 2 2 0 8 0 amappl11 160 53 0 38 1 0 1 1 0 8 0 amappl10 152 6 0 6 2 2 0 1 0 8 0 amappl9 144 244 0 244 1 1 0 1 0 8 0 amappl8 136 30 0 26 1 0 1 1 0 8 0 amappl7 128 121 0 108 1 0 1 1 0 8 0 amappl6 120 212 0 207 1 0 1 1 0 8 0 amappl5 112 141 0 131 1 0 1 1 0 8 0 amappl4 104 307 0 287 1 0 1 1 0 8 0 amappl3 96 12346 0 12222 5 1 4 4 0 8 0 amappl2 88 706 0 636 2 0 2 2 0 8 0 amappl1 80 15893 0 15209 15 0 15 15 0 8 0 amappl 88 16646 0 16460 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 7 0 7 2 2 0 1 0 8 0 dma128 128 255 0 255 2 2 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 113 0 5 2 0 2 2 0 8 0 uaddrrnd 24 2054 0 2021 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2054 0 2021 1 0 1 1 0 8 0 vmmpekpl 168 17984 0 17940 3 0 3 3 0 8 0 vmmpepl 168 135530 0 133087 138 20 118 124 0 357 3 vmsppl 488 2053 0 2021 5 0 5 5 0 8 0 rwobjpl 80 43065 0 35742 157 2 155 155 0 8 1 pdppl 4096 4115 0 4042 105 32 73 83 0 8 0 pvpl 32 22780 0 0 184 0 184 184 0 265 0 pmappl 256 2053 0 2021 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 305 0 59 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83825ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc intr_handler(ffff80003c42d620,ffff800000079000) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x1a kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x1a sys/dev/kcov.c:153 __mp_lock(ffffffff838de7e8) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838de7e8) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 doopenat(ffff80002a2ac7d0,ffffff9c,200000000040,e8,0,ffff80003c42d980) at doopenat+0x314 sys/kern/vfs_syscalls.c:1137 syscall(ffff80003c42da30) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c42da30) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe21ad22ab90, count: 4 ddb{0}> trace x86_ipi_db(ffffffff83825ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc intr_handler(ffff80003c42d620,ffff800000079000) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x1a kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x1a sys/dev/kcov.c:153 __mp_lock(ffffffff838de7e8) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838de7e8) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 doopenat(ffff80002a2ac7d0,ffffff9c,200000000040,e8,0,ffff80003c42d980) at doopenat+0x314 sys/kern/vfs_syscalls.c:1137 syscall(ffff80003c42da30) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c42da30) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe21ad22ab90, count: -11 ddb{0}> machine ddbcpu 1 Stopped at dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 dt_ioctl_record_stop(ffff80000147f000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80002a2ac020) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80002a2ac020) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a39d330) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8059d5b450,1,fffffd80097fb340,ffff80002a2ac020) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80692aae28,ffff80002a2ac020) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80692aae28,ffff80002a2ac020) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80692aae28,ffff80002a2ac020) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd80692aae28,ffff80002a2ac020) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80002a2ac020) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80002a2ac020,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a2ac020,ffff80002a39d6a0,ffff80002a39d5f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a39d6a0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a39d6a0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78314c365d10, count: 3 ddb{1}> trace dt_ioctl_record_stop(ffff80000147f000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80002a2ac020) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80002a2ac020) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a39d330) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8059d5b450,1,fffffd80097fb340,ffff80002a2ac020) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80692aae28,ffff80002a2ac020) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80692aae28,ffff80002a2ac020) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80692aae28,ffff80002a2ac020) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd80692aae28,ffff80002a2ac020) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80002a2ac020) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80002a2ac020,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a2ac020,ffff80002a39d6a0,ffff80002a39d5f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a39d6a0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a39d6a0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78314c365d10, count: -12