panic: bad dir Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 186586 88872 0 0 0 0 syz-executor *436296 88872 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8301eb79) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff800032bb80d8,ffff800032bb80d8,8fd9dd0126ce8e4a) at ufs_dirbadentry VOP_LOOKUP(fffffd8072dc6cc8,ffff800032bb8350,ffff800032bb8380) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800032bb8320) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff800032bb8320) at namei+0x7aa sys/kern/vfs_lookup.c:250 domknodat(ffff800029fe7c10,ffffff9c,200001c0,100,705) at domknodat+0xb4 sys/kern/vfs_syscalls.c:1576 syscall(ffff800032bb8520) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800032bb8520) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe0c350919a0, 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:437 panic(ffffffff8301eb79) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff800032bb80d8,ffff800032bb80d8,8fd9dd0126ce8e4a) at ufs_dirbadentry VOP_LOOKUP(fffffd8072dc6cc8,ffff800032bb8350,ffff800032bb8380) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800032bb8320) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff800032bb8320) at namei+0x7aa sys/kern/vfs_lookup.c:250 domknodat(ffff800029fe7c10,ffffff9c,200001c0,100,705) at domknodat+0xb4 sys/kern/vfs_syscalls.c:1576 syscall(ffff800032bb8520) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800032bb8520) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe0c350919a0, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800032bb7f00 rbx 0xffff800029b7cd87 rdx 0 rcx 0xffff800029fe7c10 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xbfc3888c9db8cfd2 r11 0xa99499d59a41e5e6 r12 0xffff800029b7cb88 r13 0 r14 0 r15 0x1 rip 0xffffffff819facd5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800032bb7ef0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=436296 pid=88872 tcnt=5 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=74, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800029fe6038,0xffff8000ffffca40 process=0xffff80003579e8c8 user=0xffff800032bb3000, vmspace=0xfffffd806beb08a0 estcpu=24, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 86670 155531 40349 0 2 0 syz-executor 86670 288734 40349 0 3 0x4000080 fsleep syz-executor 58753 267091 89697 0 2 0 syz-executor 58753 403782 89697 0 3 0x4000080 fsleep syz-executor 6924 462738 97189 0 2 0 syz-executor 6924 429430 97189 0 3 0x4000080 fsleep syz-executor 6924 511429 97189 0 3 0x4000080 msgwait syz-executor 6924 302969 97189 0 3 0x4000080 fsleep syz-executor 88872 186586 60042 0 7 0 syz-executor 88872 352377 60042 0 2 0x4000000 syz-executor 88872 329848 60042 0 2 0x4000000 syz-executor *88872 436296 60042 0 7 0x4000000 syz-executor 88872 9814 60042 0 2 0x4000000 syz-executor 68144 412086 82943 0 2 0 syz-executor 68144 63423 82943 0 3 0x4000080 ttyin syz-executor 68144 112257 82943 0 3 0x4000080 fsleep syz-executor 79605 502252 96691 0 2 0x480 syz-executor 79605 451682 96691 0 3 0x4000080 kqread syz-executor 79605 11081 96691 0 3 0x4000080 fsleep syz-executor 20120 377949 2833 0 2 0x2 syz-executor 20377 49354 0 0 3 0x14200 acct acct 11045 321636 2833 0 3 0x82 piperd syz-executor 60042 522235 2833 0 3 0x82 nanoslp syz-executor 82943 12143 2833 0 2 0x482 syz-executor 97189 124803 2833 0 2 0x482 syz-executor 97583 300372 0 0 3 0x14200 bored sosplice 40349 505472 2833 0 2 0x482 syz-executor 89697 430882 2833 0 2 0x482 syz-executor 96691 356604 2833 0 3 0x82 nanoslp syz-executor 23732 481894 0 0 3 0x14280 nfsidl nfsio 45653 473504 0 0 3 0x14280 nfsidl nfsio 23593 516358 0 0 3 0x14280 nfsidl nfsio 68984 12027 0 0 3 0x14280 nfsidl nfsio 77983 90104 0 0 3 0x14280 nfsidl nfsio 22850 511938 0 0 3 0x14280 nfsidl nfsio 6537 116600 0 0 3 0x14280 nfsidl nfsio 35913 450531 0 0 3 0x14280 nfsidl nfsio 6903 484033 0 0 3 0x14280 nfsidl nfsio 73403 139144 0 0 3 0x14280 nfsidl nfsio 992 160105 0 0 3 0x14280 nfsidl nfsio 76527 243050 0 0 3 0x14280 nfsidl nfsio 89213 332671 0 0 3 0x14280 nfsidl nfsio 49790 36193 0 0 3 0x14280 nfsidl nfsio 69437 459207 0 0 3 0x14280 nfsidl nfsio 25648 344438 0 0 3 0x14280 nfsidl nfsio 8953 209497 0 0 3 0x14280 nfsidl nfsio 99949 205757 0 0 3 0x14280 nfsidl nfsio 25744 136723 0 0 3 0x14280 nfsidl nfsio 92955 317075 0 0 3 0x14280 nfsidl nfsio 2833 137177 70527 0 2 0x2 syz-executor 70527 81293 87135 0 3 0x10008a sigsusp ksh 87135 51569 7307 0 3 0x98 kqread sshd-session 7307 188419 75280 0 3 0x92 kqread sshd-session 97586 227400 1 0 3 0x100083 ttyin getty 75280 130217 1 0 3 0x88 kqread sshd 7028 166928 19895 74 3 0x1100092 bpf pflogd 19895 260453 1 0 3 0x80 sbwait pflogd 2826 449728 52183 73 3 0x1100090 kqread syslogd 52183 131336 1 0 3 0x100082 sbwait syslogd 89583 275966 1 0 3 0x100080 kqread resolvd 71633 258953 11699 77 3 0x100092 kqread dhcpleased 24211 151383 11699 77 3 0x100092 kqread dhcpleased 11699 198738 1 0 3 0x80 kqread dhcpleased 5056 384074 0 0 3 0x14200 bored smr 56857 472995 0 0 2 0x14200 zerothread 78030 344660 0 0 3 0x14200 aiodoned aiodoned 92668 20366 0 0 3 0x14200 syncer update 92900 256751 0 0 3 0x14200 cleaner cleaner 12333 238823 0 0 3 0x14200 reaper reaper 16418 397074 0 0 3 0x14200 pgdaemon pagedaemon 23733 156766 0 0 3 0x14200 bored viomb 81944 383922 0 0 3 0x40014200 acpi0 acpi0 55008 122245 0 0 3 0x40014200 idle1 67383 371860 0 0 3 0x14200 bored softnet3 58263 416500 0 0 3 0x14200 bored softnet2 57460 25349 0 0 3 0x14200 bored softnet1 17853 246514 0 0 3 0x14200 bored softnet0 61868 250888 0 0 3 0x14200 bored systqmp 9126 332184 0 0 3 0x14200 bored systq 36108 456710 0 0 3 0x14200 tmoslp softclockmp 28421 330693 0 0 3 0x40014200 tmoslp softclock 995 497205 0 0 3 0x40014200 idle0 1 1536 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 88872 (syz-executor) thread 0xffff800029fe6ce0 (352377) exclusive rwlock dklk r = 0 (0xffff800000a46068) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 vndopen+0xa1 sys/dev/vnd.c:187 #3 spec_open+0x2e9 sys/kern/spec_vnops.c:150 #4 VOP_OPEN+0x8b sys/kern/vfs_vops.c:138 #5 vn_open+0x708 sys/kern/vfs_vnops.c:177 #6 doopenat+0x31d sys/kern/vfs_syscalls.c:1123 #7 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #7 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 Process 88872 (syz-executor) thread 0xffff800029fe7c10 (436296) exclusive rrwlock inode r = 0 (0xfffffd806fdf7d58) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domknodat+0xb4 sys/kern/vfs_syscalls.c:1576 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83606900) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #1 syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 #2 Xsyscall+0x128 Process 20120 (syz-executor) thread 0xffff800029fe6a58 (377949) exclusive rrwlock inode r = 0 (0xfffffd806fdf7f78) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:120 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #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:3100 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806a8b5708) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #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:3085 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10188 10169K 10483K 166960K 11795 0 pcb 18 14K 16K 166960K 211 0 rtable 218 6K 7K 166960K 781 0 pf 34 17K 18K 166960K 80 0 ifaddr 40 7K 8K 166960K 103 0 ifgroup 51 2K 2K 166960K 116 0 sysctl 3 0K 0K 166960K 3 0 counters 62 36K 36K 166960K 96 0 ioctlops 0 0K 4K 166960K 1512 0 iov 0 0K 12K 166960K 14 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1507 95K 95K 166960K 2002 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 22 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 97K 166960K 599 0 sigio 0 0K 0K 166960K 9 0 proc 70 91K 140K 166960K 915 0 subproc 104 6K 7K 166960K 273 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 39 0 in_multi 88 6K 7K 166960K 251 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 568 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 232 72K 91K 166960K 6369 0 UVM aobj 12 2K 2K 166960K 12 0 pinsyscall 41 82K 105K 166960K 2006 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 14 0 NDP 11 0K 1K 166960K 70 0 temp 48 6821K 6885K 166960K 12173 0 kqueue 14 22K 28K 166960K 69 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 77 0 74 1 0 1 1 0 8 0 rtentry 112 265 0 165 4 0 4 4 0 8 0 unpcb 144 358 0 341 4 0 4 4 0 8 3 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 808 96 0 91 3 1 2 2 0 8 1 arp 120 45 0 29 1 0 1 1 0 8 0 inpcb 336 560 0 550 10 3 7 8 0 8 6 nd6 136 67 0 46 1 0 1 1 0 8 0 kcovpl 48 21 0 13 1 0 1 1 0 8 0 ppxss 1168 2 0 2 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 3 0 1 1 0 1 1 0 482 0 pffrnode 88 3 0 1 1 0 1 1 0 8 0 pffrent 40 8 0 6 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 pfstitem 24 62 0 16 1 0 1 1 0 8 0 pfstkey 128 68 0 22 2 0 2 2 0 8 0 pfstate 376 65 0 19 5 0 5 5 0 8 0 pfrule 1344 23 0 15 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1036 0 626 32 4 28 29 0 8 2 art_table 32 1037 0 626 4 0 4 4 0 8 0 art_node 16 261 0 171 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 4 1 0 1 1 0 8 0 semapl 112 20 0 10 1 0 1 1 0 8 0 shmpl 112 9 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2120 0 592 97 0 97 97 0 8 0 ffsino 272 2120 0 592 103 0 103 103 0 8 0 nchpl 144 2688 0 987 64 0 64 64 0 8 0 uvmvnodes 80 2700 0 0 56 0 56 56 0 8 0 vnodes 216 2700 0 0 150 0 150 150 0 8 0 namei 1024 10371 0 10369 2 1 1 2 0 8 0 percpumem 16 62 0 17 1 0 1 1 0 8 0 vcpupl 3904 1 0 0 1 0 1 1 0 8 0 vmpool 696 1 0 0 1 0 1 1 0 8 0 kstatmem 264 56 0 34 2 0 2 2 0 8 0 scxspl 216 17634 0 17634 10 3 7 8 1 8 7 plimitpl 152 86 0 69 1 0 1 1 0 8 0 sigapl 424 893 0 823 9 0 9 9 0 8 0 futexpl 64 4856 0 4850 3 2 1 1 0 8 0 knotepl 120 358 0 0 11 0 11 11 0 8 0 kqueuepl 216 99 0 88 1 0 1 1 0 8 0 pipepl 320 207 0 180 5 2 3 5 0 8 0 fdescpl 496 853 0 823 7 2 5 6 0 8 0 filepl 152 4798 0 4548 24 5 19 19 0 8 8 lockfpl 104 171 0 169 1 0 1 1 0 8 0 lockfspl 48 49 0 47 1 0 1 1 0 8 0 sessionpl 144 35 0 26 1 0 1 1 0 8 0 pgrppl 48 60 0 43 1 0 1 1 0 8 0 ucredpl 104 694 0 680 1 0 1 1 0 8 0 zombiepl 144 823 0 823 1 0 1 1 0 8 1 processpl 1160 893 0 823 6 0 6 6 0 8 0 procpl 648 1369 0 1286 8 0 8 8 0 8 0 srpgc 96 4 0 4 1 1 0 1 0 8 0 sosppl 168 3 0 3 3 2 1 1 0 8 1 sockpl 664 999 0 969 11 1 10 10 0 8 7 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 240 0 0 30 0 30 30 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 321 0 0 19 0 19 19 0 8 0 bufpl 280 6946 0 699 447 0 447 447 0 8 0 anonpl 24 183103 0 179646 59 5 54 59 0 185 19 amapchunkpl 152 20682 0 20204 33 6 27 32 0 158 7 amappl16 200 3911 0 3889 19 10 9 15 0 8 4 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 146 0 134 1 0 1 1 0 8 0 amappl13 176 9 0 8 1 0 1 1 0 8 0 amappl12 168 1703 0 1673 4 2 2 3 0 8 0 amappl11 160 53 0 39 1 0 1 1 0 8 0 amappl10 152 23 0 23 1 1 0 1 0 8 0 amappl9 144 171 0 170 1 0 1 1 0 8 0 amappl8 136 26 0 24 1 0 1 1 0 8 0 amappl7 128 131 0 118 1 0 1 1 0 8 0 amappl6 120 295 0 294 1 0 1 1 0 8 0 amappl5 112 201 0 190 1 0 1 1 0 8 0 amappl4 104 354 0 335 1 0 1 1 0 8 0 amappl3 96 3918 0 3805 4 0 4 4 0 8 0 amappl2 88 788 0 725 2 0 2 2 0 8 0 amappl1 80 9990 0 9399 16 3 13 15 0 8 0 amappl 88 5892 0 5724 6 1 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 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 11 0 0 1 0 1 1 0 8 0 uaddrrnd 24 854 0 823 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 854 0 823 1 0 1 1 0 8 0 vmmpekpl 168 9239 0 9181 4 0 4 4 0 8 0 vmmpepl 168 60227 0 58372 99 6 93 97 0 357 9 vmsppl 440 853 0 823 6 2 4 5 0 8 0 rwobjpl 56 22962 0 19305 54 1 53 53 0 8 0 pdppl 4096 1715 0 1647 117 45 72 87 0 8 4 pvpl 32 27725 0 0 225 1 224 224 0 265 0 pmappl 248 853 0 823 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 426 0 57 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83486ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff836066f8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff836066f8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff8000371be470,ffff80000006c780) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge26_untramp() at Xintr_ioapic_edge26_untramp+0x18f end of kernel end trace frame: 0x7ebdbea35270, count: 9 ddb{0}> trace x86_ipi_db(ffffffff83486ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff836066f8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff836066f8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff8000371be470,ffff80000006c780) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge26_untramp() at Xintr_ioapic_edge26_untramp+0x18f end of kernel end trace frame: 0x7ebdbea35270, 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:437 panic(ffffffff8301eb79) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff800032bb80d8,ffff800032bb80d8,8fd9dd0126ce8e4a) at ufs_dirbadentry VOP_LOOKUP(fffffd8072dc6cc8,ffff800032bb8350,ffff800032bb8380) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800032bb8320) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff800032bb8320) at namei+0x7aa sys/kern/vfs_lookup.c:250 domknodat(ffff800029fe7c10,ffffff9c,200001c0,100,705) at domknodat+0xb4 sys/kern/vfs_syscalls.c:1576 syscall(ffff800032bb8520) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800032bb8520) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe0c350919a0, count: 6 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8301eb79) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff800032bb80d8,ffff800032bb80d8,8fd9dd0126ce8e4a) at ufs_dirbadentry VOP_LOOKUP(fffffd8072dc6cc8,ffff800032bb8350,ffff800032bb8380) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800032bb8320) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff800032bb8320) at namei+0x7aa sys/kern/vfs_lookup.c:250 domknodat(ffff800029fe7c10,ffffff9c,200001c0,100,705) at domknodat+0xb4 sys/kern/vfs_syscalls.c:1576 syscall(ffff800032bb8520) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800032bb8520) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe0c350919a0, count: -9