uvm_fault(0xfffffd8073cf39a0, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND 524228 73108 0 0 0 0 syz-executor dt_ioctl_record_stop(ffff80000169d000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,1,2000,ffff800037fee560) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff800037fee560) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002a3a5e30) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805d289e58,1,fffffd80097fd548,ffff800037fee560) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80731e4518,ffff800037fee560) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80731e4518,ffff800037fee560) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80731e4518,ffff800037fee560) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd80731e4518,ffff800037fee560) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800037fee560) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800037fee560,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800037fee560,ffff80002a3a61a0,ffff80002a3a60f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3a61a0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3a61a0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78fc319cf3b0, 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(0xfffffd8073cf39a0, 0x0, 0, 1) -> e ddb{1}> trace dt_ioctl_record_stop(ffff80000169d000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,1,2000,ffff800037fee560) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff800037fee560) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002a3a5e30) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805d289e58,1,fffffd80097fd548,ffff800037fee560) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80731e4518,ffff800037fee560) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80731e4518,ffff800037fee560) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80731e4518,ffff800037fee560) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd80731e4518,ffff800037fee560) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800037fee560) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800037fee560,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800037fee560,ffff80002a3a61a0,ffff80002a3a60f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3a61a0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3a61a0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78fc319cf3b0, count: -12 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a3a5d60 rbx 0x1 rdx 0 rcx 0xffff800037fee560 rax 0xffffffff8382d9b0 dt_prov_static r8 0 r9 0x1 r10 0xacd284ffdfb1c961 r11 0x214f28e6591c5f1 r12 0 r13 0 r14 0 r15 0xffff800001627c00 rip 0xffffffff815dc978 dt_ioctl_record_stop+0x108 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff80002a3a5d30 ss 0x10 dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 ddb{1}> show proc PROC (syz-executor) tid=484189 pid=2189 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=85, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff800037fee560 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff800037fefcb8,0xffff80003c4122e0 process=0xffff800037fe5368 user=0xffff80002a3a1000, vmspace=0xfffffd8073cf39a0 estcpu=35, cpticks=13, pctcpu=0.8, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 73108 524228 63422 0 7 0 syz-executor 73108 94473 63422 0 2 0x4000000 syz-executor 94903 424830 64054 0 2 0 syz-executor 94903 138759 64054 0 2 0x4000000 syz-executor 94903 60889 64054 0 2 0x4000000 syz-executor 94903 331294 64054 0 2 0x4000000 syz-executor 26794 44522 15105 0 2 0 syz-executor 26794 181295 15105 0 3 0x4000080 fsleep syz-executor 26794 26334 15105 0 3 0x4000080 fsleep syz-executor 10367 312647 22066 0 3 0x80 nanoslp syz-executor 10367 323852 22066 0 3 0x4000080 ttyout syz-executor 10367 76682 22066 0 3 0x4000080 ttyout syz-executor 10367 352004 22066 0 3 0x4000080 fsleep syz-executor 48508 321878 97081 0 3 0x80 nanoslp syz-executor 48508 277740 97081 0 3 0x4000080 kqsel syz-executor 48508 280730 97081 0 3 0x4000080 fsleep syz-executor 48508 129975 97081 0 3 0x4000080 fsleep syz-executor 98059 520476 89431 0 3 0x80 nanoslp syz-executor 98059 75431 89431 0 3 0x4000080 kqread syz-executor 98059 358348 89431 0 3 0x4000080 fsleep syz-executor 98059 221591 89431 0 3 0x4000080 fsleep syz-executor 62717 460221 32364 0 3 0x3000 suspend syz-executor 62717 130925 32364 0 3 0x4081000 biowait syz-executor 89431 190367 75264 0 3 0x82 nanoslp syz-executor 77208 380713 75264 0 3 0x82 nanoslp syz-executor 63422 150021 75264 0 3 0x82 nanoslp syz-executor 97081 224567 75264 0 3 0x82 nanoslp syz-executor 22066 155751 75264 0 3 0x82 nanoslp syz-executor 15105 245633 75264 0 3 0x82 nanoslp syz-executor 32364 474333 75264 0 3 0x82 nanoslp syz-executor 28541 234401 18525 0 3 0x100082 sbwait ndp 18525 263356 1 0 3 0x10008a sigsusp sh 64054 36710 75264 0 3 0x82 nanoslp syz-executor 75264 47758 65043 0 2 0x2 syz-executor 65043 165095 55476 0 3 0x10008a sigsusp ksh 55476 282267 38135 0 3 0x98 kqread sshd-session 38135 56477 12011 0 3 0x92 kqread sshd-session 33026 430475 1 0 3 0x100083 ttyin getty 12011 116567 1 0 3 0x88 kqread sshd 69023 331971 9837 74 3 0x1100092 bpf pflogd 9837 225290 1 0 3 0x80 sbwait pflogd 91661 321454 11865 73 3 0x1100090 kqread syslogd 11865 174771 1 0 3 0x100082 sbwait syslogd 83832 270856 1 0 3 0x100080 kqread resolvd 12284 2083 50686 77 3 0x100092 kqread dhcpleased 32102 407481 50686 77 3 0x100092 kqread dhcpleased 50686 78538 1 0 3 0x80 kqread dhcpleased 7020 195219 0 0 3 0x14200 bored smr 734 432860 0 0 2 0x14200 zerothread 36243 324178 0 0 3 0x14200 aiodoned aiodoned 5323 523880 0 0 3 0x14200 syncer update 80022 67923 0 0 3 0x14200 cleaner cleaner 19340 430479 0 0 2 0x14200 reaper 36093 516393 0 0 3 0x14200 pgdaemon pagedaemon 49860 196265 0 0 3 0x14200 bored viomb 75116 291949 0 0 3 0x40014200 acpi0 acpi0 94029 220037 0 0 3 0x40014200 idle1 83126 492767 0 0 3 0x14200 bored softnet1 44702 113778 0 0 3 0x14200 bored softnet0 9459 396569 0 0 3 0x14200 bored systqmp 92715 289045 0 0 3 0x14200 bored systq 18378 85232 0 0 3 0x14200 tmoslp softclockmp 83201 17006 0 0 3 0x40014200 tmoslp softclock 42750 351314 0 0 3 0x40014200 idle0 1 446711 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 73108 (syz-executor) thread 0xffff8000fffeea78 (94473) exclusive rwlock vmmaplk r = 0 (0xfffffd806c8deaa8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 #7 recall_trap+0x8 Process 94903 (syz-executor) thread 0xffff80003c412d30 (138759) exclusive rwlock fdlock r = 0 (0xffff8000317cd300) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 doopenat+0x18e sys/kern/vfs_syscalls.c:1105 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #4 Xsyscall+0x128 Process 94903 (syz-executor) thread 0xffff800037fef4f0 (60889) exclusive rwlock vmmaplk r = 0 (0xfffffd806c8de8c0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5165 #3 sys_munmap+0x1ca sys/uvm/uvm_mmap.c:531 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #5 Xsyscall+0x128 Process 62717 (syz-executor) thread 0xffff8000fffee2b0 (130925) exclusive rrwlock inode r = 0 (0xfffffd806e713318) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 19340 (reaper) thread 0xffff8000ffffd760 (430479) exclusive rwlock kmmaplk r = 0 (0xffffffff83916678) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5165 #3 uvm_unmap+0x7d sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:714 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 #6 reaper+0x1ca sys/kern/kern_exit.c:493 #7 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11089 12193K 12456K 166960K 14379 0 pcb 17 17K 19K 166960K 1054 0 rtable 195 15K 17K 166960K 1697 0 pf 41 19K 83K 166960K 540 0 ifaddr 31 6K 8K 166960K 239 0 ifgroup 47 2K 2K 166960K 429 0 sysctl 4 1K 9K 166960K 29 0 counters 66 36K 38K 166960K 462 0 ioctlops 0 0K 8K 166960K 2497 0 iov 0 0K 24K 166960K 301 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1455 91K 92K 166960K 3751 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 40 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 265 0 dirhash 12 2K 3K 166960K 72 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 20 73K 248K 166960K 3168 0 sigio 0 0K 0K 166960K 171 0 proc 72 115K 164K 166960K 1164 0 subproc 81 5K 5K 166960K 174 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 458 0 in_multi 48 3K 7K 166960K 325 0 ether_multi 1 0K 0K 166960K 17 0 mrt 0 0K 0K 166960K 16 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 193 864K 864K 166960K 193 0 exec 0 0K 1K 166960K 1155 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 8 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 287 164K 187K 166960K 30483 0 UVM aobj 80 7K 8K 166960K 90 0 pinsyscall 46 92K 104K 166960K 4589 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 239 0 NDP 10 0K 2K 166960K 184 0 temp 82 8684K 8940K 166960K 131375 0 kqueue 14 22K 31K 166960K 691 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 120 364 0 359 4 3 1 3 0 8 0 rtentry 176 597 0 540 6 1 5 6 0 8 0 unpcb 144 2450 0 2430 20 16 4 6 0 8 3 syncache 336 15 0 15 8 7 1 1 0 8 1 tcpqe 32 6 0 6 4 4 0 1 0 8 0 tcpcb 736 1048 0 1042 28 21 7 7 0 8 6 arp 136 152 0 143 1 0 1 1 0 8 0 inpcb 328 4393 0 4382 38 31 7 12 0 8 4 nd6 152 64 0 53 1 0 1 1 0 8 0 pkpcb 40 58 0 58 8 7 1 1 0 8 1 kcovpl 48 19 0 10 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 153 0 153 1 0 1 1 0 8 1 pppxif 1504 11 0 11 4 4 0 1 0 8 0 pfstscr 40 6 0 5 4 3 1 1 0 8 0 pffrag 232 23 0 20 1 0 1 1 0 482 0 pffrnode 88 23 0 20 1 0 1 1 0 8 0 pffrent 40 107 0 104 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 13 0 9 1 0 1 1 0 8 0 pfanchor 1288 3 0 0 1 0 1 1 0 8 0 pftag 88 3 0 1 1 0 1 1 0 8 0 pfstitem 24 12 0 0 1 0 1 1 0 8 0 pfstkey 128 22 0 11 1 0 1 1 0 8 0 pfstate 448 13 0 7 1 0 1 1 0 8 0 pfrule 1360 54 0 50 3 2 1 1 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 6 0 0 6 0 6 6 0 8 0 art_heap4 256 1872 0 1650 65 44 21 57 0 8 5 art_table 40 1878 0 1650 10 5 5 10 0 8 0 art_node 32 594 0 545 3 1 2 3 0 8 0 sysvmsgpl 40 7 0 6 2 1 1 1 0 8 0 semapl 112 258 0 248 1 0 1 1 0 8 0 shmpl 112 86 0 10 3 0 3 3 0 8 0 dirhash 1024 57 0 40 3 0 3 3 0 8 0 dino2pl 256 7379 0 5861 96 0 96 96 0 8 0 ffsino 296 7379 0 5861 118 0 118 118 0 8 0 nchpl 144 11688 0 9952 65 0 65 65 0 8 0 rtmask 32 36 0 36 8 7 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 42395 0 42395 6 5 1 2 0 8 1 percpumem 16 246 0 198 1 0 1 1 0 8 0 vcpupl 3968 1 0 0 1 0 1 1 0 8 0 vmpool 848 1 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 6 0 0 1 0 1 1 0 8 0 kstatmem 264 292 0 268 3 0 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 10 0 10 5 4 1 1 0 8 1 scxspl 216 72747 0 72746 18 15 3 8 1 8 2 plimitpl 152 1075 0 1053 3 1 2 2 0 8 1 sigapl 424 3464 0 3414 9 0 9 9 0 8 0 knotepl 120 792 0 0 24 0 24 24 0 8 0 kqueuepl 224 1354 0 1342 14 12 2 6 0 8 1 pipepl 344 554 0 524 14 5 9 9 0 8 6 fdescpl 528 3396 0 3362 3 0 3 3 0 8 0 filepl 160 25158 0 24886 45 29 16 19 0 8 3 lockfpl 104 1500 0 1494 3 2 1 2 0 8 0 lockfspl 48 508 0 502 1 0 1 1 0 8 0 sessionpl 144 41 0 32 1 0 1 1 0 8 0 pgrppl 48 157 0 139 1 0 1 1 0 8 0 ucredpl 104 4025 0 4011 1 0 1 1 0 8 0 zombiepl 144 5014 0 5012 1 0 1 1 0 8 0 processpl 1232 3464 0 3414 6 0 6 6 0 8 0 procpl 664 8744 0 8677 9 2 7 8 0 8 0 sosppl 176 26 0 26 6 6 0 1 0 8 0 sockpl 752 7390 0 7354 78 67 11 24 0 8 5 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 122 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 92 0 0 10 3 7 10 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 344 0 0 21 0 21 21 0 8 0 bufpl 280 28749 0 22613 439 0 439 439 0 8 0 anonpl 32 12941 0 0 104 0 104 104 0 246 0 amapchunkpl 152 106784 0 106073 65 29 36 39 0 158 8 amappl16 200 11080 0 10918 77 61 16 26 0 8 0 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 1 0 1 1 1 0 1 0 8 0 amappl13 176 591 0 589 1 0 1 1 0 8 0 amappl12 168 3865 0 3819 3 0 3 3 0 8 0 amappl11 160 38 0 38 2 2 0 1 0 8 0 amappl10 152 48 0 34 1 0 1 1 0 8 0 amappl9 144 255 0 255 1 1 0 1 0 8 0 amappl8 136 28 0 25 1 0 1 1 0 8 0 amappl7 128 124 0 122 1 0 1 1 0 8 0 amappl6 120 422 0 406 1 0 1 1 0 8 0 amappl5 112 85 0 74 1 0 1 1 0 8 0 amappl4 104 527 0 496 1 0 1 1 0 8 0 amappl3 96 18783 0 18672 4 1 3 3 0 8 0 amappl2 88 3540 0 3459 2 0 2 2 0 8 0 amappl1 80 24208 0 23581 15 0 15 15 0 8 0 amappl 88 29057 0 28853 5 0 5 5 0 92 0 uvmvnodes 80 191 0 0 4 0 4 4 0 8 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma16384 16384 3 0 3 3 3 0 1 0 8 0 dma8192 8192 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 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 3 2 1 1 0 8 1 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 89 0 10 2 0 2 2 0 8 0 uaddrrnd 24 3396 0 3362 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3396 0 3362 1 0 1 1 0 8 0 vmmpekpl 168 26539 0 26473 4 0 4 4 0 8 0 vmmpepl 168 220345 0 218107 136 33 103 111 0 357 0 vmsppl 488 3395 0 3362 5 0 5 5 0 8 0 rwobjpl 80 58530 0 57106 42 8 34 35 0 8 0 pdppl 4096 6802 0 6725 132 53 79 86 0 8 2 pvpl 32 21444 0 0 173 0 173 173 0 265 0 pmappl 256 3396 0 3362 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 411 0 144 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837bbff0) 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(ffffffff83957cc0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83957cc0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff80002a304380,ffff8000002a3480) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x74621f55ebe0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff837bbff0) 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(ffffffff83957cc0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83957cc0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff80002a304380,ffff8000002a3480) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x74621f55ebe0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 dt_ioctl_record_stop(ffff80000169d000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,1,2000,ffff800037fee560) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff800037fee560) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002a3a5e30) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805d289e58,1,fffffd80097fd548,ffff800037fee560) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80731e4518,ffff800037fee560) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80731e4518,ffff800037fee560) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80731e4518,ffff800037fee560) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd80731e4518,ffff800037fee560) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800037fee560) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800037fee560,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800037fee560,ffff80002a3a61a0,ffff80002a3a60f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3a61a0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3a61a0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78fc319cf3b0, count: 3 ddb{1}> trace dt_ioctl_record_stop(ffff80000169d000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,1,2000,ffff800037fee560) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff800037fee560) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002a3a5e30) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805d289e58,1,fffffd80097fd548,ffff800037fee560) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80731e4518,ffff800037fee560) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80731e4518,ffff800037fee560) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80731e4518,ffff800037fee560) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd80731e4518,ffff800037fee560) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800037fee560) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800037fee560,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800037fee560,ffff80002a3a61a0,ffff80002a3a60f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3a61a0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3a61a0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78fc319cf3b0, count: -12