panic: bad dir Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *493739 32366 0 0 0 0K dhcpleased db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8247eb97) at panic+0x177 sys/kern/subr_prf.c:202 ufs_lookup() at ufs_lookup+0x174c ufs_dirbad sys/ufs/ufs/ufs_lookup.c:609 [inline] ufs_lookup() at ufs_lookup+0x174c sys/ufs/ufs/ufs_lookup.c:444 VOP_LOOKUP(fffffd806f1be3b8,ffff8000211dc8f8,ffff8000211dc928) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000211dc8c8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 namei(ffff8000211dc8c8) at namei+0x36a sys/kern/vfs_lookup.c:245 vn_open(ffff8000211dc8c8,1,0) at vn_open+0x105 sys/kern/vfs_vnops.c:146 doopenat(ffff800021193ce8,ffffff9c,7f7ffffe8d30,0,0,ffff8000211dcab0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff8000211dcb20) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000211dcb20) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe8d20, count: 5 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: bad dir ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8247eb97) at panic+0x177 sys/kern/subr_prf.c:202 ufs_lookup() at ufs_lookup+0x174c ufs_dirbad sys/ufs/ufs/ufs_lookup.c:609 [inline] ufs_lookup() at ufs_lookup+0x174c sys/ufs/ufs/ufs_lookup.c:444 VOP_LOOKUP(fffffd806f1be3b8,ffff8000211dc8f8,ffff8000211dc928) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000211dc8c8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 namei(ffff8000211dc8c8) at namei+0x36a sys/kern/vfs_lookup.c:245 vn_open(ffff8000211dc8c8,1,0) at vn_open+0x105 sys/kern/vfs_vnops.c:146 doopenat(ffff800021193ce8,ffffff9c,7f7ffffe8d30,0,0,ffff8000211dcab0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff8000211dcb20) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000211dcb20) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe8d20, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff8000211dc380 rbx 0xffffffff827dbbff cpu_info_full_primary+0x2bff rdx 0 rcx 0 rax 0xffff800021193ce8 r8 0 r9 0x8080808080808080 r10 0x18c93ca1d85b292e r11 0xe1c706c5ab935872 r12 0xffffffff827dba00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff820ed2c8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000211dc370 ss 0 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (dhcpleased) pid=493739 stat=onproc flags process=0 proc=0 pri=17, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800021192a88,0xffff8000ffff77c0 process=0xffff8000ffff8430 user=0xffff8000211d7000, vmspace=0xfffffd8008586450 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 75804 39799 68706 0 2 0 syz-executor.3 75804 139804 68706 0 2 0x4000480 syz-executor.3 54600 498650 28789 0 2 0 syz-executor.1 54600 443018 28789 0 2 0x4000000 syz-executor.1 58810 19994 97067 0 3 0x80 nanoslp syz-executor.2 58810 362350 97067 0 3 0x4000080 lockf syz-executor.2 58810 170722 97067 0 3 0x4000080 fsleep syz-executor.2 97067 502934 69299 0 2 0x482 syz-executor.2 28789 309348 69299 0 2 0x482 syz-executor.1 94000 17171 0 0 3 0x14200 acct acct 55813 191915 1 0 3 0x100083 ttyin getty 72806 438813 69299 0 2 0x2 syz-executor.0 68706 429946 69299 0 2 0x482 syz-executor.3 30640 39632 0 0 3 0x14280 nfsidl nfsio 48750 504274 0 0 3 0x14280 nfsidl nfsio 27467 406159 0 0 3 0x14280 nfsidl nfsio 11157 258444 0 0 3 0x14280 nfsidl nfsio 18528 227520 0 0 3 0x14280 nfsidl nfsio 15447 469382 0 0 3 0x14280 nfsidl nfsio 3396 299141 0 0 3 0x14280 nfsidl nfsio 12243 71858 0 0 3 0x14280 nfsidl nfsio 3579 338116 0 0 3 0x14280 nfsidl nfsio 2135 462544 0 0 3 0x14280 nfsidl nfsio 50032 217270 0 0 3 0x14280 nfsidl nfsio 22371 499193 0 0 3 0x14280 nfsidl nfsio 11625 76234 0 0 3 0x14280 nfsidl nfsio 77132 334650 0 0 3 0x14280 nfsidl nfsio 53256 255102 0 0 3 0x14280 nfsidl nfsio 16760 364971 0 0 3 0x14280 nfsidl nfsio 49300 180426 0 0 3 0x14280 nfsidl nfsio 66328 470615 0 0 3 0x14280 nfsidl nfsio 26255 23723 0 0 3 0x14280 nfsidl nfsio 80721 356249 0 0 3 0x14280 nfsidl nfsio 27752 29526 0 0 3 0x14200 bored sosplice 69299 348833 9600 0 3 0x82 thrsleep syz-fuzzer 69299 321911 9600 0 2 0x4000482 syz-fuzzer 69299 202981 9600 0 3 0x4000082 thrsleep syz-fuzzer 69299 213887 9600 0 3 0x4000082 nanoslp syz-fuzzer 69299 193867 9600 0 3 0x4000082 kqread syz-fuzzer 69299 421162 9600 0 3 0x4000082 thrsleep syz-fuzzer 69299 256857 9600 0 3 0x4000082 thrsleep syz-fuzzer 69299 353716 9600 0 3 0x4000082 thrsleep syz-fuzzer 9600 188353 5762 0 3 0x10008a sigsusp ksh 5762 450564 28536 0 3 0x9a poll sshd 28536 149059 1 0 3 0x88 poll sshd 73407 117066 69692 74 3 0x100092 bpf pflogd 69692 416254 1 0 3 0x80 netio pflogd 59411 604 16531 73 3 0x100090 kqread syslogd 16531 16463 1 0 3 0x100082 netio syslogd 21382 301645 1 0 3 0x100080 kqread resolvd 10525 363626 32366 77 3 0x100092 kqread dhcpleased 61931 200398 32366 77 3 0x100092 kqread dhcpleased *32366 493739 1 0 7 0 dhcpleased 74430 315869 0 0 3 0x14200 bored smr 10250 488129 0 0 2 0x14200 zerothread 75064 445613 0 0 3 0x14200 aiodoned aiodoned 68452 380672 0 0 3 0x14200 syncer update 74166 300803 0 0 3 0x14200 cleaner cleaner 1406 437042 0 0 3 0x14200 reaper reaper 33926 469582 0 0 3 0x14200 pgdaemon pagedaemon 18714 297718 0 0 3 0x14200 bored viomb 6851 42633 0 0 3 0x40014200 acpi0 acpi0 72545 146192 0 0 7 0x40014200 idle1 25780 125463 0 0 3 0x14200 bored softnet 74221 506225 0 0 3 0x14200 bored systqmp 21068 236846 0 0 3 0x14200 bored systq 2689 368736 0 0 2 0x40014200 softclock 37451 44455 0 0 3 0x40014200 idle0 1 387975 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 32366 (dhcpleased) thread 0xffff800021193ce8 (493739) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8293dc80) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416 #3 sleep_finish+0x1b2 sys/kern/kern_synch.c:433 #4 tsleep+0x12c sys/kern/kern_synch.c:158 #5 biowait+0x91 sys/kern/vfs_bio.c:1271 #6 ffs_bufatoff+0x125 sys/ufs/ffs/ffs_subr.c:71 #7 ufs_lookup+0x466 sys/ufs/ufs/ufs_lookup.c:258 #8 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 #10 namei+0x36a sys/kern/vfs_lookup.c:245 #11 vn_open+0x105 sys/kern/vfs_vnops.c:146 #12 doopenat+0x26a sys/kern/vfs_syscalls.c:1128 #13 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806f1154e0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vget+0x1d3 sys/kern/vfs_subr.c:677 #6 cache_lookup+0x2b4 sys/kern/vfs_cache.c:224 #7 ufs_lookup+0x1ac sys/ufs/ufs/ufs_lookup.c:162 #8 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 #10 namei+0x36a sys/kern/vfs_lookup.c:245 #11 vn_open+0x105 sys/kern/vfs_vnops.c:146 #12 doopenat+0x26a sys/kern/vfs_syscalls.c:1128 #13 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10229 6587K 7322K 78643K 64460 0 pcb 13 22K 26K 78643K 4660 0 rtable 184 21K 23K 78643K 4168 0 ifaddr 101 28K 31K 78643K 1797 0 sysctl 3 1K 1K 78643K 3 0 counters 52 35K 35K 78643K 646 0 ioctlops 0 0K 8K 78643K 6160 0 iov 0 0K 28K 78643K 2207 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1458 92K 92K 78643K 18085 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 200 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 3478 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 9 29K 49K 78643K 22230 0 sigio 0 0K 0K 78643K 227 0 proc 73 87K 111K 78643K 2833 0 subproc 52 3K 3K 78643K 868 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 2136 0 in_multi 50 3K 3K 78643K 2237 0 ether_multi 1 0K 0K 78643K 669 0 mrt 1 0K 0K 78643K 137 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 265 1182K 1182K 78643K 265 0 exec 0 0K 2K 78643K 4233 0 pfkey data 0 0K 0K 78643K 10 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 614 1442K 1442K 78643K 283961 0 UVM aobj 131 8K 8K 78643K 144 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 2 0K 1K 78643K 6349 0 NDP 13 0K 1K 78643K 473 0 temp 127 4222K 8318K 78643K 148525 0 kqueue 10 14K 22K 78643K 992 0 SYN cache 2 8K 16K 78643K 3 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 1568 0 1565 23 22 1 3 0 8 0 rtentry 112 1033 0 973 2 0 2 2 0 8 0 unpcb 136 12833 0 12818 149 146 3 9 0 8 2 syncache 296 109 0 109 31 30 1 1 0 8 1 tcpqe 32 72 0 72 17 16 1 1 0 8 1 tcpcb 736 10582 0 10572 304 298 6 23 0 8 4 arp 120 158 0 145 1 0 1 1 0 8 0 inpcb 304 44589 0 44504 342 334 8 18 0 8 1 rttmr 72 45 0 45 14 14 0 1 0 8 0 ip6q 72 3 0 3 1 1 0 1 0 8 0 ip6af 40 9 0 9 1 1 0 1 0 8 0 nd6 48 241 0 230 1 0 1 1 0 8 0 pkpcb 40 152 0 152 14 14 0 1 0 8 0 kcovpl 48 65 0 61 1 0 1 1 0 8 0 ppxss 1248 63 0 62 18 17 1 1 0 8 0 pfstscr 40 23 0 23 5 5 0 1 0 8 0 pffrag 232 192 0 191 10 9 1 1 0 482 0 pffrnode 88 192 0 191 10 9 1 1 0 8 0 pffrent 40 955 0 954 10 9 1 1 0 8 0 pfosfp 40 1431 0 1006 5 0 5 5 0 8 0 pfosfpen 112 1431 0 714 21 0 21 21 0 8 0 pfrktable 1344 294 0 279 7 5 2 2 0 8 0 pftag 88 8 0 5 1 0 1 1 0 8 0 pfstitem 24 82 0 80 1 0 1 1 0 8 0 pfstkey 112 116 0 114 2 1 1 2 0 8 0 pfstate 320 96 0 94 4 3 1 4 0 8 0 pfrule 1360 1227 0 1129 10 1 9 9 0 8 0 art_heap8 4096 7 0 6 6 5 1 3 0 8 0 art_heap4 256 4603 0 4289 38 17 21 24 0 8 0 art_table 32 4610 0 4295 4 0 4 4 0 8 0 art_node 16 1026 0 974 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 7 1 0 1 1 0 8 0 semapl 112 3476 0 3466 1 0 1 1 0 8 0 shmpl 112 141 0 13 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 30267 0 28789 93 0 93 93 0 8 0 ffsino 272 30267 0 28789 99 0 99 99 0 8 0 nchpl 144 58506 0 56909 61 0 61 61 0 8 0 uvmvnodes 80 6174 0 0 126 0 126 126 0 8 0 vnodes 224 6174 0 0 364 0 364 364 0 8 0 namei 1024 208786 0 208785 6 5 1 2 0 8 0 percpumem 16 335 0 297 1 0 1 1 0 8 0 vcpupl 2048 389 0 1 49 0 49 49 0 8 0 vmpool 560 426 0 38 31 3 28 28 0 8 0 pfiaddrpl 120 102 0 81 5 4 1 1 0 8 0 scsiplug 72 42 0 42 4 4 0 1 0 8 0 scxspl 216 187161 0 187161 43 42 1 7 0 8 1 plimitpl 152 2519 0 2507 1 0 1 1 0 8 0 sigapl 424 22341 0 22283 8 1 7 7 0 8 0 futexpl 64 193824 0 193823 5 4 1 1 0 8 0 knotepl 112 308 0 0 4 0 4 4 0 8 0 kqueuepl 216 5017 0 5002 107 104 3 7 0 8 2 pipepl 336 4130 0 4114 123 121 2 9 0 8 0 fdescpl 496 22273 0 22251 5 2 3 4 0 8 0 filepl 152 172224 0 172001 263 249 14 17 0 8 5 lockfpl 104 5885 0 5881 10 9 1 2 0 8 0 lockfspl 48 1455 0 1452 1 0 1 1 0 8 0 sessionpl 144 83 0 70 1 0 1 1 0 8 0 pgrppl 48 297 0 284 1 0 1 1 0 8 0 ucredpl 96 18907 0 18895 1 0 1 1 0 8 0 zombiepl 144 22283 0 22283 2 1 1 1 0 8 1 processpl 1064 22341 0 22283 4 0 4 4 0 8 0 procpl 672 64637 0 64568 31 23 8 8 0 8 1 srpgc 96 85 0 85 16 16 0 1 0 8 0 sosppl 168 186 0 186 37 36 1 1 0 8 1 sockpl 480 59261 0 59169 989 976 13 34 0 8 1 mcl64k 65536 50 0 0 5 2 3 3 0 8 0 mcl16k 16384 30 0 0 4 2 2 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 34 0 0 2 0 2 2 0 8 0 mcl8k 8192 33 0 0 4 1 3 3 0 8 0 mcl4k 4096 33 0 0 3 0 3 3 0 8 0 mcl2k2 2112 12 0 0 1 0 1 1 0 8 0 mcl2k 2048 566 0 0 30 4 26 27 0 8 0 mtagpl 96 1578 0 0 21 2 19 19 0 8 0 mbufpl 256 8907 0 0 550 0 550 550 0 8 0 bufpl 288 37047 0 30729 454 0 454 454 0 8 0 anonpl 24 6448325 0 6429009 418 274 144 157 0 186 15 amapchunkpl 152 728136 0 727393 192 160 32 43 0 158 1 amappl16 200 64433 0 63738 321 271 50 58 0 8 12 amappl15 192 8470 0 8466 1 0 1 1 0 8 0 amappl14 184 2492 0 2492 9 9 0 1 0 8 0 amappl13 176 2442 0 2439 1 0 1 1 0 8 0 amappl12 168 845 0 842 1 0 1 1 0 8 0 amappl11 160 4574 0 4558 1 0 1 1 0 8 0 amappl10 152 1960 0 1951 1 0 1 1 0 8 0 amappl9 144 1601 0 1599 1 0 1 1 0 8 0 amappl8 136 3952 0 3813 6 1 5 5 0 8 0 amappl7 128 2501 0 2489 1 0 1 1 0 8 0 amappl6 120 1667 0 1640 1 0 1 1 0 8 0 amappl5 112 18268 0 18243 1 0 1 1 0 8 0 amappl4 104 11726 0 11690 8 7 1 2 0 8 0 amappl3 96 2200 0 2178 1 0 1 1 0 8 0 amappl2 88 4415 0 4351 2 0 2 2 0 8 0 amappl1 80 406549 0 406052 13 2 11 13 0 8 0 amappl 88 281945 0 281636 13 5 8 8 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 72 143 0 13 3 0 3 3 0 8 0 uaddrrnd 24 22699 0 22289 3 0 3 3 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 22699 0 22289 3 0 3 3 0 8 0 vmmpekpl 168 150427 0 150348 5 1 4 4 0 8 0 vmmpepl 168 2053902 0 2050810 658 497 161 163 0 357 21 vmsppl 368 22698 0 22289 40 2 38 38 0 8 0 rwobjpl 56 500541 0 492472 165 47 118 118 0 8 1 pdppl 4096 45406 0 44966 510 68 442 442 0 8 2 pvpl 32 10769964 0 10747041 761 536 225 259 0 265 28 pmappl 248 22698 0 22289 28 2 26 26 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 2334 0 528 52 0 52 52 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8247eb97) at panic+0x177 sys/kern/subr_prf.c:202 ufs_lookup() at ufs_lookup+0x174c ufs_dirbad sys/ufs/ufs/ufs_lookup.c:609 [inline] ufs_lookup() at ufs_lookup+0x174c sys/ufs/ufs/ufs_lookup.c:444 VOP_LOOKUP(fffffd806f1be3b8,ffff8000211dc8f8,ffff8000211dc928) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000211dc8c8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 namei(ffff8000211dc8c8) at namei+0x36a sys/kern/vfs_lookup.c:245 vn_open(ffff8000211dc8c8,1,0) at vn_open+0x105 sys/kern/vfs_vnops.c:146 doopenat(ffff800021193ce8,ffffff9c,7f7ffffe8d30,0,0,ffff8000211dcab0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff8000211dcb20) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000211dcb20) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe8d20, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d38ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d38ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5