panic: bad dir Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 78655 29688 0 0 0 0 syz-executor *401475 69631 0 0x2000 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833954f6) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff8000327f0ca8,ffff8000327f0ca8,9ae82e3a43b37893) at ufs_dirbadentry VOP_LOOKUP(fffffd800b039798,ffff8000327f0e78,ffff8000327f0ea8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000327f0e48) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff8000327f0e48) at namei+0x7aa sys/kern/vfs_lookup.c:250 sys_unveil(ffff80003c4f1228,ffff8000327f1030,ffff8000327f0f80) at sys_unveil+0x329 sys/kern/vfs_syscalls.c:1009 syscall(ffff8000327f1030) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000327f1030) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f8f8c9ed40, count: 6 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: bad dir ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833954f6) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff8000327f0ca8,ffff8000327f0ca8,9ae82e3a43b37893) at ufs_dirbadentry VOP_LOOKUP(fffffd800b039798,ffff8000327f0e78,ffff8000327f0ea8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000327f0e48) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff8000327f0e48) at namei+0x7aa sys/kern/vfs_lookup.c:250 sys_unveil(ffff80003c4f1228,ffff8000327f1030,ffff8000327f0f80) at sys_unveil+0x329 sys/kern/vfs_syscalls.c:1009 syscall(ffff8000327f1030) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000327f1030) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f8f8c9ed40, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000327f0ad0 rbx 0xffff8000299deddf rdx 0xffff80000147ae40 rcx 0xffff80003c4f1228 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa7e4888f1facbd68 r11 0x9a824f4a800aafda r12 0xffff8000299debe0 r13 0 r14 0 r15 0x1 rip 0xffffffff828dc1f5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000327f0ac0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=401475 pid=69631 tcnt=2 stat=onproc flags process=2000 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c4f1228 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c4f0f98,0xffff80003c4f0048 process=0xffff80002a3dcec8 user=0xffff8000327ec000, vmspace=0xfffffd805e0c6400 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 29688 78655 10685 0 7 0 syz-executor 29688 258729 10685 0 3 0x4000000 smrbar syz-executor 69631 3458 26498 0 4 0x82000 syz-executor *69631 401475 26498 0 7 0x4002000 syz-executor 89718 516977 49954 0 3 0x80 nanoslp syz-executor 89718 512321 49954 0 3 0x4000080 netcon syz-executor 89718 274057 49954 0 3 0x4000080 fsleep syz-executor 65077 37093 18598 0 3 0x80 nanoslp syz-executor 65077 88119 18598 0 3 0x4000080 piperd syz-executor 65077 402113 18598 0 3 0x4000080 fsleep syz-executor 45403 234615 1 0 3 0x80 nanoslp init 18598 480904 54250 0 3 0x82 nanoslp syz-executor 97988 102094 54250 0 3 0x2 biowait syz-executor 71852 6441 54250 0 3 0x82 nanoslp syz-executor 41010 416165 0 0 3 0x14200 bored sosplice 26498 76035 54250 0 3 0x82 nanoslp syz-executor 49954 289752 54250 0 3 0x82 nanoslp syz-executor 47278 154924 54250 0 3 0x82 nanoslp syz-executor 10685 128257 54250 0 3 0x82 nanoslp syz-executor 88432 154381 54250 0 3 0x82 nanoslp syz-executor 54250 218913 55247 0 3 0x82 kqread syz-executor 55247 384916 86991 0 3 0x10008a sigsusp ksh 86991 220822 76837 0 3 0x98 kqread sshd-session 76837 482086 7261 0 3 0x92 kqread sshd-session 7261 209891 1 0 3 0x88 kqread sshd 3344 393207 90217 74 3 0x1100092 bpf pflogd 90217 392940 1 0 3 0x80 sbwait pflogd 50534 330694 37063 73 3 0x1100090 kqread syslogd 37063 283448 1 0 3 0x100082 sbwait syslogd 44321 5830 1 0 3 0x100080 kqread resolvd 51697 504480 60932 77 3 0x100092 kqread dhcpleased 35605 264822 60932 77 3 0x100092 kqread dhcpleased 60932 354496 1 0 3 0x80 kqread dhcpleased 29996 494840 0 0 3 0x14200 bored smr 36260 290815 0 0 3 0x14200 pgzero zerothread 12937 465112 0 0 3 0x14200 aiodoned aiodoned 25878 50953 0 0 3 0x14200 syncer update 76713 175098 0 0 3 0x14200 cleaner cleaner 62154 14668 0 0 3 0x14200 reaper reaper 49443 161387 0 0 3 0x14200 pgdaemon pagedaemon 7568 20461 0 0 3 0x14200 bored viomb 8311 160401 0 0 3 0x40014200 acpi0 acpi0 29164 76127 0 0 3 0x40014200 idle1 14181 131206 0 0 3 0x14200 bored softnet7 40015 197061 0 0 3 0x14200 bored softnet6 61343 384563 0 0 3 0x14200 bored softnet5 94495 72543 0 0 3 0x14200 bored softnet4 6948 246107 0 0 3 0x14200 bored softnet3 25777 280848 0 0 3 0x14200 bored softnet2 45209 336319 0 0 3 0x14200 bored softnet1 32160 477294 0 0 3 0x14200 bored softnet0 77497 315984 0 0 3 0x14200 smrbar systqmp 5043 516258 0 0 3 0x14200 bored systq 90672 366808 0 0 3 0x14200 tmoslp softclockmp 752 269340 0 0 3 0x40014200 tmoslp softclock 20394 112319 0 0 3 0x40014200 idle0 1 335380 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 69631 (syz-executor) thread 0xffff80003c4f1228 (401475) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83980410) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2da sys/kern/kern_synch.c:366 #3 biowait+0xc1 sys/kern/vfs_bio.c:1242 #4 ffs_bufatoff+0x16f sys/ufs/ffs/ffs_subr.c:71 #5 ufs_lookup+0x548 sys/ufs/ufs/ufs_lookup.c:256 #6 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #7 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #8 namei+0x7aa sys/kern/vfs_lookup.c:250 #9 sys_unveil+0x329 sys/kern/vfs_syscalls.c:1009 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807e452d58) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 sys_unveil+0x329 sys/kern/vfs_syscalls.c:1009 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 97988 (syz-executor) thread 0xffff80003c448a68 (102094) exclusive rrwlock inode r = 0 (0xfffffd806e0ecc80) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd805e2f0900) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3094 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 77497 (systqmp) thread 0xffff8000ffffe520 (315984) shared rwlock systqmp r = 0 (0xffffffff837ebef8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10226 11093K 11295K 166960K 12572 0 pcb 17 17K 18K 166960K 409 0 rtable 199 9K 10K 166960K 536 0 pf 36 18K 18K 166960K 169 0 ifaddr 43 7K 8K 166960K 122 0 ifgroup 55 2K 2K 166960K 193 0 sysctl 4 1K 9K 166960K 16 0 counters 68 36K 37K 166960K 226 0 ioctlops 0 0K 5K 166960K 1756 0 iov 0 0K 28K 166960K 136 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1411 89K 90K 166960K 2495 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 29 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 117 0 dirhash 12 2K 3K 166960K 45 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 1707 0 sigio 0 0K 0K 166960K 130 0 proc 63 99K 164K 166960K 795 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 375 0 in_multi 83 5K 7K 166960K 188 0 ether_multi 1 0K 0K 166960K 8 0 mrt 3 0K 0K 166960K 15 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 562 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 242 164K 186K 166960K 17460 0 UVM aobj 80 5K 5K 166960K 84 0 pinsyscall 41 82K 104K 166960K 2952 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 72 0 NDP 12 0K 2K 166960K 84 0 temp 77 8684K 8812K 166960K 67049 0 kqueue 14 22K 31K 166960K 294 0 SYN cache 2 8K 16K 166960K 3 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 120 134 0 131 1 0 1 1 0 8 0 rtentry 176 158 0 79 5 0 5 5 0 8 0 unpcb 144 1138 0 1118 12 11 1 4 0 8 0 syncache 336 12 0 12 5 4 1 1 0 8 1 tcpqe 32 2 0 2 2 2 0 1 0 8 0 tcpcb 736 584 0 574 16 14 2 10 0 8 0 arp 128 21 0 8 1 0 1 1 0 8 0 inpcb 328 1769 0 1753 22 20 2 10 0 8 0 nd6 144 27 0 12 1 0 1 1 0 8 0 pkpcb 40 20 0 20 2 2 0 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1192 64 0 64 3 2 1 1 0 8 1 pppxif 1504 5 0 5 3 2 1 1 0 8 1 pffrag 232 6 0 1 1 0 1 1 0 482 0 pffrnode 88 6 0 1 1 0 1 1 0 8 0 pffrent 40 16 0 11 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 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 96 0 37 1 0 1 1 0 8 0 pfstkey 128 96 0 37 2 0 2 2 0 8 0 pfstate 384 96 0 37 7 0 7 7 0 8 0 pfrule 1344 30 0 22 2 1 1 2 0 8 0 rttmr 136 3 0 3 2 2 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 705 0 339 31 6 25 30 0 8 0 art_table 40 706 0 339 5 0 5 5 0 8 0 art_node 32 157 0 90 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 3 1 0 1 1 0 8 0 semapl 112 110 0 100 1 0 1 1 0 8 0 shmpl 112 81 0 4 3 0 3 3 0 8 0 dirhash 1024 39 0 22 3 0 3 3 0 8 0 dino2pl 256 4627 0 3118 96 0 96 96 0 8 0 ffsino 296 4627 0 3118 118 0 118 118 0 8 0 nchpl 144 6992 0 5286 64 0 64 64 0 8 0 rtmask 32 13 0 13 2 2 0 1 0 8 0 uvmvnodes 80 5160 0 0 106 0 106 106 0 8 0 vnodes 216 5160 0 0 287 0 287 287 0 8 0 namei 1024 24614 0 24611 2 1 1 1 0 8 0 percpumem 16 128 0 79 1 0 1 1 0 8 0 kstatmem 264 128 0 100 5 2 3 3 0 8 1 scsiplug 72 9 0 9 2 2 0 1 0 8 0 scxspl 216 41483 0 41482 14 13 1 8 1 8 0 plimitpl 152 359 0 342 1 0 1 1 0 8 0 sigapl 424 2051 0 1997 9 1 8 9 0 8 0 knotepl 120 574 0 0 18 0 18 18 0 8 0 kqueuepl 224 624 0 614 7 6 1 5 0 8 0 pipepl 344 253 0 224 4 1 3 4 0 8 0 fdescpl 528 2004 0 1973 3 0 3 3 0 8 0 filepl 160 12730 0 12497 29 17 12 17 0 8 1 lockfpl 104 970 0 967 1 0 1 1 0 8 0 lockfspl 48 324 0 321 1 0 1 1 0 8 0 sessionpl 144 35 0 27 1 0 1 1 0 8 0 pgrppl 48 142 0 126 1 0 1 1 0 8 0 ucredpl 104 2059 0 2046 1 0 1 1 0 8 0 zombiepl 144 2082 0 2079 2 1 1 1 0 8 0 processpl 1248 2051 0 1997 6 0 6 6 0 8 0 procpl 656 4736 0 4676 8 1 7 8 0 8 0 sosppl 168 10 0 9 3 2 1 1 0 8 0 sockpl 752 3092 0 3053 32 27 5 14 0 8 0 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 127 0 0 16 0 16 16 0 8 0 mcl2k 2048 54 0 0 7 0 7 7 0 8 0 mtagpl 96 19 0 0 1 0 1 1 0 8 0 mbufpl 256 312 0 0 18 0 18 18 0 8 0 bufpl 280 15875 0 9733 440 0 440 440 0 8 0 anonpl 32 19544 0 0 158 0 158 158 0 246 0 amapchunkpl 152 60443 0 59906 57 29 28 36 0 158 3 amappl16 200 7029 0 6749 71 56 15 42 0 8 0 amappl15 192 3 0 2 1 0 1 1 0 8 0 amappl14 184 161 0 150 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 2728 0 2697 4 2 2 3 0 8 0 amappl11 160 50 0 36 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 247 0 247 1 1 0 1 0 8 0 amappl8 136 26 0 23 1 0 1 1 0 8 0 amappl7 128 123 0 112 1 0 1 1 0 8 0 amappl6 120 230 0 226 1 0 1 1 0 8 0 amappl5 112 139 0 128 1 0 1 1 0 8 0 amappl4 104 350 0 332 1 0 1 1 0 8 0 amappl3 96 11952 0 11839 4 0 4 4 0 8 0 amappl2 88 766 0 703 2 0 2 2 0 8 0 amappl1 80 16972 0 16385 15 0 15 15 0 8 0 amappl 88 16379 0 16207 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 3 0 2 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 128 257 0 257 3 3 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 83 0 4 2 0 2 2 0 8 0 uaddrrnd 24 2004 0 1973 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2004 0 1973 1 0 1 1 0 8 0 vmmpekpl 168 17587 0 17528 3 0 3 3 0 8 0 vmmpepl 168 133360 0 131131 134 28 106 124 0 357 2 vmsppl 488 2003 0 1973 7 2 5 5 0 8 0 rwobjpl 80 41497 0 35098 134 2 132 132 0 8 0 pdppl 4096 4016 0 3946 118 44 74 86 0 8 4 pvpl 32 28341 0 0 230 1 229 229 0 265 0 pmappl 256 2003 0 1973 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 326 0 73 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837f3ff0) 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(ffffffff83980208) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83980208) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff800038c1d510,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x781505ae3550, count: 9 ddb{0}> trace x86_ipi_db(ffffffff837f3ff0) 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(ffffffff83980208) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83980208) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff800038c1d510,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x781505ae3550, count: -6 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833954f6) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff8000327f0ca8,ffff8000327f0ca8,9ae82e3a43b37893) at ufs_dirbadentry VOP_LOOKUP(fffffd800b039798,ffff8000327f0e78,ffff8000327f0ea8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000327f0e48) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff8000327f0e48) at namei+0x7aa sys/kern/vfs_lookup.c:250 sys_unveil(ffff80003c4f1228,ffff8000327f1030,ffff8000327f0f80) at sys_unveil+0x329 sys/kern/vfs_syscalls.c:1009 syscall(ffff8000327f1030) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000327f1030) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f8f8c9ed40, count: 6 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833954f6) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff8000327f0ca8,ffff8000327f0ca8,9ae82e3a43b37893) at ufs_dirbadentry VOP_LOOKUP(fffffd800b039798,ffff8000327f0e78,ffff8000327f0ea8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000327f0e48) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff8000327f0e48) at namei+0x7aa sys/kern/vfs_lookup.c:250 sys_unveil(ffff80003c4f1228,ffff8000327f1030,ffff8000327f0f80) at sys_unveil+0x329 sys/kern/vfs_syscalls.c:1009 syscall(ffff8000327f1030) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000327f1030) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f8f8c9ed40, count: -9