panic: bad dir Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *131853 99652 0 0 0 0K dhcpleased db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8248011c) 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(fffffd806ef74738,ffff8000211dc728,ffff8000211dc758) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000211dc6f8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 namei(ffff8000211dc6f8) at namei+0x36a sys/kern/vfs_lookup.c:245 vn_open(ffff8000211dc6f8,1,0) at vn_open+0x105 sys/kern/vfs_vnops.c:146 doopenat(ffff8000211937a8,ffffff9c,7f7ffffd4c00,0,0,ffff8000211dc8e0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff8000211dc950) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000211dc950) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd4bf0, 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(ffffffff8248011c) 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(fffffd806ef74738,ffff8000211dc728,ffff8000211dc758) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000211dc6f8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 namei(ffff8000211dc6f8) at namei+0x36a sys/kern/vfs_lookup.c:245 vn_open(ffff8000211dc6f8,1,0) at vn_open+0x105 sys/kern/vfs_vnops.c:146 doopenat(ffff8000211937a8,ffffff9c,7f7ffffd4c00,0,0,ffff8000211dc8e0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff8000211dc950) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000211dc950) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd4bf0, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff8000211dc1b0 rbx 0xffffffff82811bff cpu_info_full_primary+0x2bff rdx 0 rcx 0 rax 0xffff8000211937a8 r8 0x101010101010101 r9 0x8080808080808080 r10 0x37f10518fa86f94d r11 0xe686018c65a9965b r12 0xffffffff82811a00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff819c3118 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000211dc1a0 ss 0 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (dhcpleased) pid=131853 stat=onproc flags process=0 proc=0 pri=17, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800021193268,0xffff8000ffff77c0 process=0xffff8000ffff90a8 user=0xffff8000211d7000, vmspace=0xfffffd807f000450 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 21053 220129 94644 0 2 0 syz-executor.0 21053 68568 94644 0 2 0x4000000 syz-executor.0 3986 499774 55785 0 2 0 syz-executor.1 3986 421180 55785 0 2 0x4000000 syz-executor.1 3986 4100 55785 0 3 0x4000080 fsleep syz-executor.1 71806 499297 48340 0 2 0 syz-executor.2 71806 169616 48340 0 3 0x4000080 fsleep syz-executor.2 84941 57535 79004 0 2 0 syz-executor.3 84941 437063 79004 0 3 0x4000080 nanoslp syz-executor.3 79004 352520 19070 0 3 0x82 nanoslp syz-executor.3 64470 364410 1 0 3 0x100083 ttyin getty 94644 257422 19070 0 3 0x82 nanoslp syz-executor.0 55785 188672 19070 0 3 0x82 nanoslp syz-executor.1 48340 79177 19070 0 3 0x82 nanoslp syz-executor.2 86744 25823 0 0 3 0x14280 nfsidl nfsio 22027 71340 0 0 3 0x14280 nfsidl nfsio 51592 222167 0 0 3 0x14280 nfsidl nfsio 55841 349424 0 0 3 0x14280 nfsidl nfsio 7818 215037 0 0 3 0x14280 nfsidl nfsio 98909 153559 0 0 3 0x14280 nfsidl nfsio 14567 342291 0 0 3 0x14280 nfsidl nfsio 23503 188724 0 0 3 0x14280 nfsidl nfsio 56162 128746 0 0 3 0x14280 nfsidl nfsio 91453 295513 0 0 3 0x14280 nfsidl nfsio 86216 449497 0 0 3 0x14280 nfsidl nfsio 43136 32677 0 0 3 0x14280 nfsidl nfsio 50247 251077 0 0 3 0x14280 nfsidl nfsio 66980 225287 0 0 3 0x14280 nfsidl nfsio 24439 126585 0 0 3 0x14280 nfsidl nfsio 49575 168211 0 0 3 0x14280 nfsidl nfsio 83683 46137 0 0 3 0x14280 nfsidl nfsio 57215 193637 0 0 3 0x14280 nfsidl nfsio 93055 262881 0 0 3 0x14280 nfsidl nfsio 7882 180284 0 0 3 0x14280 nfsidl nfsio 23020 230262 0 0 3 0x14200 bored sosplice 19070 417219 85078 0 3 0x82 thrsleep syz-fuzzer 19070 310136 85078 0 3 0x4000082 thrsleep syz-fuzzer 19070 174928 85078 0 3 0x4000082 thrsleep syz-fuzzer 19070 459661 85078 0 3 0x4000082 thrsleep syz-fuzzer 19070 188401 85078 0 3 0x4000082 thrsleep syz-fuzzer 19070 351845 85078 0 3 0x4000082 thrsleep syz-fuzzer 19070 162273 85078 0 3 0x4000082 kqread syz-fuzzer 19070 120109 85078 0 3 0x4000082 thrsleep syz-fuzzer 19070 289211 85078 0 3 0x4000082 thrsleep syz-fuzzer 85078 20578 81293 0 3 0x10008a sigsusp ksh 81293 514025 16813 0 3 0x9a poll sshd 16813 95469 1 0 3 0x88 poll sshd 26228 453632 11859 74 3 0x100092 bpf pflogd 11859 347574 1 0 3 0x80 netio pflogd 47350 196702 61352 73 2 0x100010 syslogd 61352 255776 1 0 3 0x100082 netio syslogd 59123 161655 1 0 3 0x100080 kqread resolvd 27156 284566 99652 77 3 0x100092 kqread dhcpleased 1136 326719 99652 77 3 0x100092 kqread dhcpleased *99652 131853 1 0 7 0 dhcpleased 69520 210431 0 0 3 0x14200 bored smr 76821 117096 0 0 2 0x14200 zerothread 96683 119606 0 0 3 0x14200 aiodoned aiodoned 65272 118716 0 0 3 0x14200 syncer update 9566 130789 0 0 3 0x14200 cleaner cleaner 63877 345928 0 0 3 0x14200 reaper reaper 93442 182225 0 0 3 0x14200 pgdaemon pagedaemon 17848 117567 0 0 3 0x14200 bored viomb 56933 469425 0 0 3 0x40014200 acpi0 acpi0 86762 382005 0 0 7 0x40014200 idle1 53974 15504 0 0 3 0x14200 bored softnet 1905 179407 0 0 3 0x14200 bored systqmp 35474 284765 0 0 3 0x14200 bored systq 82050 76910 0 0 3 0x40014200 bored softclock 35641 96204 0 0 3 0x40014200 idle0 1 112486 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 47350 (syslogd) thread 0xffff8000ffff7a50 (196702) exclusive rrwlock inode r = 0 (0xfffffd806e7934e0) #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 sys_fsync+0xf5 sys/kern/vfs_syscalls.c:2923 #6 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #6 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #7 Xsyscall+0x128 Process 99652 (dhcpleased) thread 0xffff8000211937a8 (131853) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828e6fa8) #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 (0xfffffd806f1085f0) #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 10219 6584K 9458K 78643K 151235 0 pcb 13 18K 20K 78643K 5143 0 rtable 229 37K 39K 78643K 11770 0 ifaddr 116 32K 34K 78643K 4418 0 sysctl 3 1K 3K 78643K 12 0 counters 52 35K 35K 78643K 920 0 ioctlops 0 0K 8K 78643K 8562 0 iov 0 0K 28K 78643K 13345 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1950 122K 123K 78643K 36104 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 250 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 4483 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 10 33K 45K 78643K 33680 0 sigio 0 0K 0K 78643K 1468 0 proc 72 87K 111K 78643K 5897 0 subproc 52 3K 4K 78643K 2099 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1712 0 in_multi 38 2K 4K 78643K 2858 0 ether_multi 1 0K 0K 78643K 424 0 mrt 2 0K 0K 78643K 137 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 241 1076K 1076K 78643K 241 0 exec 0 0K 2K 78643K 8861 0 pfkey data 0 0K 0K 78643K 4 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 743 1861K 1877K 78643K 413221 0 UVM aobj 131 11K 11K 78643K 143 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 2187 0 NDP 12 0K 0K 78643K 812 0 temp 131 4234K 8328K 78643K 329366 0 kqueue 10 14K 24K 78643K 1355 0 SYN cache 2 16K 16K 78643K 2 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 2699 0 2696 41 40 1 5 0 8 0 rtentry 112 2407 0 2358 2 0 2 2 0 8 0 unpcb 136 18827 0 18812 227 226 1 9 0 8 0 syncache 296 33 0 33 12 12 0 1 0 8 0 tcpqe 32 110 5 110 2 2 0 1 0 8 0 tcpcb 736 10658 0 10654 375 374 1 17 0 8 0 arp 120 386 0 378 1 0 1 1 0 8 0 inpcb 304 34636 0 34628 464 463 1 16 0 8 0 rttmr 72 33 0 33 12 12 0 1 0 8 0 nd6 48 552 0 544 1 0 1 1 0 8 0 pkpcb 40 467 0 467 15 15 0 1 0 8 0 kcovpl 48 161 0 157 1 0 1 1 0 8 0 ppxss 1248 93 0 93 28 28 0 1 0 8 0 pfstscr 40 200 0 200 25 25 0 1 0 8 0 pffrag 232 233 0 232 16 15 1 1 0 482 0 pffrnode 88 233 0 232 16 15 1 1 0 8 0 pffrent 40 3538 0 3537 18 17 1 1 0 8 0 pfosfp 40 1440 0 1014 5 0 5 5 0 8 0 pfosfpen 112 1440 0 721 21 0 21 21 0 8 0 pfrke_plain 168 1 0 1 1 1 0 1 0 8 0 pfrktable 1344 2300 0 2252 20 16 4 5 0 8 0 pftag 88 117 0 111 2 1 1 1 0 8 0 pfqueue 264 81 0 11 5 0 5 5 0 8 0 pfstitem 24 90 0 88 1 0 1 1 0 8 0 pfstkey 112 400 0 398 2 1 1 2 0 8 0 pfstate 320 267 0 265 4 3 1 4 0 8 0 pfsrctr 152 326 0 326 4 4 0 1 0 8 0 pfrule 1360 4405 0 4110 30 5 25 25 0 8 0 art_heap8 4096 5 0 3 3 1 2 3 0 8 0 art_heap4 256 9836 0 9632 78 64 14 20 0 8 0 art_table 32 9841 0 9635 6 3 3 3 0 8 0 art_node 16 2392 0 2351 1 0 1 1 0 8 0 sysvmsgpl 40 61 0 51 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 4481 0 4471 1 0 1 1 0 8 0 shmpl 112 140 0 12 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 42726 0 41214 95 0 95 95 0 8 0 ffsino 272 42726 0 41214 101 0 101 101 0 8 0 nchpl 144 84969 0 83369 61 0 61 61 0 8 0 rtmask 32 2 0 2 1 1 0 1 0 8 0 uvmvnodes 80 6877 0 0 141 0 141 141 0 8 0 vnodes 224 6877 0 0 405 0 405 405 0 8 0 namei 1024 331105 0 331104 10 9 1 1 0 8 0 percpumem 16 472 0 434 1 0 1 1 0 8 0 vcpupl 2048 413 0 2 52 0 52 52 0 8 0 vmpool 560 514 0 103 32 2 30 30 0 8 0 pfiaddrpl 120 761 0 639 6 2 4 4 0 8 0 scsiplug 72 20 0 20 7 7 0 1 0 8 0 scxspl 216 275191 0 275191 44 43 1 7 0 8 1 plimitpl 152 3269 0 3258 1 0 1 1 0 8 0 sigapl 424 33501 0 33443 9 2 7 7 0 8 0 futexpl 64 320660 0 320658 11 10 1 1 0 8 0 knotepl 112 333 0 0 5 1 4 4 0 8 0 kqueuepl 216 6212 0 6203 141 140 1 8 0 8 0 pipepl 336 6755 0 6739 217 215 2 12 0 8 0 fdescpl 496 33439 0 33416 9 6 3 4 0 8 0 filepl 152 235753 0 235596 403 396 7 18 0 8 0 lockfpl 104 8941 0 8939 19 18 1 2 0 8 0 lockfspl 48 2573 0 2571 1 0 1 1 0 8 0 sessionpl 144 183 0 170 1 0 1 1 0 8 0 pgrppl 48 513 0 500 1 0 1 1 0 8 0 ucredpl 96 21939 0 21917 1 0 1 1 0 8 0 zombiepl 144 33443 0 33443 6 5 1 1 0 8 1 processpl 1064 33501 0 33443 4 0 4 4 0 8 0 procpl 672 88739 0 88668 29 22 7 8 0 8 0 srpgc 96 238 0 238 44 44 0 1 0 8 0 sosppl 168 185 0 185 38 38 0 1 0 8 0 sockpl 480 56739 0 56712 1213 1209 4 34 0 8 0 mcl64k 65536 30 0 0 3 0 3 3 0 8 0 mcl16k 16384 13 0 0 2 0 2 2 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 27 0 0 2 0 2 2 0 8 0 mcl8k 8192 33 0 0 3 0 3 3 0 8 0 mcl4k 4096 22 0 0 3 0 3 3 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 600 0 0 27 5 22 23 0 8 0 mtagpl 96 2514 0 0 24 0 24 24 0 8 0 mbufpl 256 7303 0 0 358 0 358 358 0 8 0 bufpl 288 59811 0 53459 495 6 489 495 0 8 0 anonpl 24 17668657 0 17631682 1421 1172 249 281 0 186 26 amapchunkpl 152 1071549 0 1070458 359 306 53 57 0 158 11 amappl16 200 573269 0 571574 2369 2279 90 115 0 8 0 amappl15 192 5245 0 5242 12 11 1 1 0 8 0 amappl14 184 4485 0 4484 1 0 1 1 0 8 0 amappl13 176 6219 0 6217 2 1 1 1 0 8 0 amappl12 168 3917 0 3911 1 0 1 1 0 8 0 amappl11 160 4839 0 4825 1 0 1 1 0 8 0 amappl10 152 3687 0 3680 1 0 1 1 0 8 0 amappl9 144 4298 0 4292 1 0 1 1 0 8 0 amappl8 136 6644 0 6507 6 1 5 5 0 8 0 amappl7 128 3852 0 3841 1 0 1 1 0 8 0 amappl6 120 5002 0 4974 1 0 1 1 0 8 0 amappl5 112 26415 0 26393 1 0 1 1 0 8 0 amappl4 104 13745 0 13717 1 0 1 1 0 8 0 amappl3 96 8412 0 8396 1 0 1 1 0 8 0 amappl2 88 10788 0 10724 5 3 2 2 0 8 0 amappl1 80 596978 0 596455 18 6 12 13 0 8 0 amappl 88 409539 0 409166 9 0 9 9 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 72 142 0 12 3 0 3 3 0 8 0 uaddrrnd 24 33953 0 33519 3 0 3 3 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 33953 0 33519 3 0 3 3 0 8 0 vmmpekpl 168 220585 0 220514 4 0 4 4 0 8 0 vmmpepl 168 3559356 0 3555038 934 741 193 224 0 357 5 vmsppl 368 33952 0 33519 41 1 40 40 0 8 0 rwobjpl 56 1204562 0 1194740 343 204 139 146 0 8 0 pdppl 4096 67914 0 67449 652 187 465 468 0 8 0 pvpl 32 24853505 0 24828536 1533 1272 261 303 0 265 33 pmappl 248 33952 0 33519 29 1 28 28 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 2551 0 869 50 1 49 49 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(ffffffff8248011c) 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(fffffd806ef74738,ffff8000211dc728,ffff8000211dc758) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000211dc6f8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 namei(ffff8000211dc6f8) at namei+0x36a sys/kern/vfs_lookup.c:245 vn_open(ffff8000211dc6f8,1,0) at vn_open+0x105 sys/kern/vfs_vnops.c:146 doopenat(ffff8000211937a8,ffffff9c,7f7ffffd4c00,0,0,ffff8000211dc8e0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff8000211dc950) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000211dc950) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd4bf0, 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