panic: bad dir Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *333478 46180 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83392e73) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff80003c483688,ffff80003c483688,3c3761135c7a158d) at ufs_dirbadentry VOP_LOOKUP(fffffd800b039000,ffff80003c483858,ffff80003c483888) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80003c483828) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80003c483828) at namei+0x7aa sys/kern/vfs_lookup.c:250 dorenameat(ffff80002a3c8a78,ffffff9c,200000000080,ffffff9c,2000000000c0) at dorenameat+0x145 sys/kern/vfs_syscalls.c:3000 syscall(ffff80003c483ad0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c483ad0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9ad70bb8790, 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(ffffffff83392e73) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff80003c483688,ffff80003c483688,3c3761135c7a158d) at ufs_dirbadentry VOP_LOOKUP(fffffd800b039000,ffff80003c483858,ffff80003c483888) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80003c483828) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80003c483828) at namei+0x7aa sys/kern/vfs_lookup.c:250 dorenameat(ffff80002a3c8a78,ffffff9c,200000000080,ffffff9c,2000000000c0) at dorenameat+0x145 sys/kern/vfs_syscalls.c:3000 syscall(ffff80003c483ad0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c483ad0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9ad70bb8790, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c4834b0 rbx 0xffff8000299dedd7 rdx 0xffff80000147ec80 rcx 0xffff80002a3c8a78 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x79d550b675bc0e7d r11 0x323a1e839e0472f2 r12 0xffff8000299debd8 r13 0 r14 0 r15 0x1 rip 0xffffffff8157f205 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4834a0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=333478 pid=46180 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a3c9748,0xffffffff839d8eb8 process=0xffff80002a399850 user=0xffff80003c47e000, vmspace=0xfffffd806b9e51f8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 46180 460932 13086 0 3 0x80 fsleep syz-executor *46180 333478 13086 0 7 0x4000000 syz-executor 21011 299211 511 0 3 0x80 fsleep syz-executor 21011 192466 511 0 3 0x4000080 fsleep syz-executor 21011 346317 511 0 3 0x4000080 kqread syz-executor 18399 29766 81944 0 3 0x80 fsleep syz-executor 18399 256131 81944 0 3 0x4000080 ttyin syz-executor 28231 164342 16984 0 3 0x80 fsleep syz-executor 28231 417867 16984 0 3 0x4000080 kqread syz-executor 32284 50478 12692 0 3 0x80 fsleep syz-executor 32284 198144 12692 0 3 0x4000080 piperd syz-executor 40818 470459 17557 0 3 0x80 fsleep syz-executor 40818 296222 17557 0 3 0x4000080 bell syz-executor 12913 482771 41528 0 3 0x80 fsleep syz-executor 12913 146343 41528 0 3 0x4000080 ttyin syz-executor 12913 259723 41528 0 3 0x4000080 ttyin syz-executor 16984 412734 12715 0 3 0x82 nanoslp syz-executor 49017 427505 0 0 3 0x14280 nfsidl nfsio 7183 262576 0 0 3 0x14280 nfsidl nfsio 34574 71548 0 0 3 0x14280 nfsidl nfsio 8596 486057 0 0 3 0x14280 nfsidl nfsio 48087 67371 0 0 3 0x14280 nfsidl nfsio 60980 372297 0 0 3 0x14280 nfsidl nfsio 14665 347481 0 0 3 0x14280 nfsidl nfsio 1252 310790 0 0 3 0x14280 nfsidl nfsio 98822 416654 0 0 3 0x14280 nfsidl nfsio 46933 88251 0 0 3 0x14280 nfsidl nfsio 35530 37349 0 0 3 0x14280 nfsidl nfsio 78123 208687 0 0 3 0x14280 nfsidl nfsio 14793 273946 0 0 3 0x14280 nfsidl nfsio 49517 12888 0 0 3 0x14280 nfsidl nfsio 74718 253096 0 0 3 0x14280 nfsidl nfsio 64226 244128 0 0 3 0x14280 nfsidl nfsio 48842 451589 0 0 3 0x14280 nfsidl nfsio 33149 154041 0 0 3 0x14280 nfsidl nfsio 91441 451801 0 0 3 0x14280 nfsidl nfsio 37876 340221 0 0 3 0x14280 nfsidl nfsio 12692 460727 12715 0 3 0x82 nanoslp syz-executor 31488 353675 1 0 3 0x80 nanoslp init 20848 299052 0 0 3 0x14200 bored sosplice 21749 405425 67983 0 3 0x100082 sbwait arp 67983 220592 80472 0 3 0x10008a sigsusp sh 13086 334478 12715 0 3 0x82 nanoslp syz-executor 81944 141457 12715 0 3 0x82 nanoslp syz-executor 41528 248220 12715 0 3 0x82 nanoslp syz-executor 17557 336341 12715 0 3 0x82 nanoslp syz-executor 511 95401 12715 0 3 0x82 nanoslp syz-executor 80472 475601 12715 0 3 0x82 wait syz-executor 12715 43734 88428 0 3 0x82 kqread syz-executor 88428 446506 65460 0 3 0x10008a sigsusp ksh 65460 6964 49556 0 3 0x98 kqread sshd-session 49556 463056 56251 0 3 0x92 kqread sshd-session 56251 254323 1 0 3 0x88 kqread sshd 50512 260007 7153 74 3 0x1100092 bpf pflogd 7153 9581 1 0 3 0x80 sbwait pflogd 61148 212659 96806 73 3 0x1100090 kqread syslogd 96806 25329 1 0 3 0x100082 sbwait syslogd 21515 513485 1 0 3 0x100080 kqread resolvd 15489 404579 79997 77 3 0x100092 kqread dhcpleased 88998 311519 79997 77 3 0x100092 kqread dhcpleased 79997 210895 1 0 3 0x80 kqread dhcpleased 59004 29471 0 0 3 0x14200 bored smr 71158 181830 0 0 3 0x14200 pgzero zerothread 17852 339728 0 0 3 0x14200 aiodoned aiodoned 2144 62985 0 0 3 0x14200 syncer update 79127 208385 0 0 3 0x14200 cleaner cleaner 8175 417740 0 0 3 0x14200 reaper reaper 62497 512950 0 0 3 0x14200 pgdaemon pagedaemon 60557 87103 0 0 3 0x14200 bored viomb 98601 86060 0 0 3 0x40014200 acpi0 acpi0 94914 359002 0 0 3 0x40014200 idle1 41900 364576 0 0 3 0x14200 bored softnet3 89785 374922 0 0 3 0x14200 bored softnet2 798 12449 0 0 3 0x14200 bored softnet1 9161 163933 0 0 3 0x14200 bored softnet0 40720 331562 0 0 3 0x14200 bored systqmp 13963 482964 0 0 3 0x14200 bored systq 83622 138432 0 0 3 0x14200 tmoslp softclockmp 10169 255506 0 0 3 0x40014200 tmoslp softclock 32825 517838 0 0 7 0x40014200 idle0 1 429356 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 46180 (syz-executor) thread 0xffff80002a3c8a78 (333478) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838ccb60) #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 dorenameat+0x145 sys/kern/vfs_syscalls.c:3000 #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 (0xfffffd807e44ff40) #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+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #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 dorenameat+0x145 sys/kern/vfs_syscalls.c:3000 #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10200 11094K 11550K 166960K 12507 0 pcb 18 18K 21K 166960K 318 0 rtable 195 8K 9K 166960K 549 0 pf 33 17K 81K 166960K 105 0 ifaddr 34 6K 7K 166960K 82 0 ifgroup 47 2K 2K 166960K 130 0 sysctl 3 1K 9K 166960K 12 0 counters 64 36K 37K 166960K 130 0 ioctlops 0 0K 4K 166960K 1593 0 iov 3 36K 36K 166960K 104 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1428 90K 90K 166960K 1995 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 5K 9K 166960K 19 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 38 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 19 69K 110K 166960K 843 0 sigio 0 0K 0K 166960K 12 0 proc 63 79K 115K 166960K 660 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 76 0 in_multi 70 5K 6K 166960K 133 0 ether_multi 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 481 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 238 166K 184K 166960K 9192 0 UVM aobj 28 4K 4K 166960K 32 0 pinsyscall 44 88K 100K 166960K 1977 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 50 0 NDP 10 0K 1K 166960K 55 0 temp 77 8707K 8771K 166960K 31592 0 kqueue 15 24K 29K 166960K 159 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 92 0 88 1 0 1 1 0 8 0 rtentry 176 152 0 72 5 0 5 5 0 8 0 unpcb 144 511 0 492 4 2 2 2 0 8 1 syncache 336 6 0 6 3 2 1 1 0 8 1 tcpcb 736 266 0 261 4 3 1 4 0 8 0 arp 128 26 0 11 1 0 1 1 0 8 0 inpcb 328 1032 0 1020 14 9 5 12 0 8 4 nd6 144 32 0 13 1 0 1 1 0 8 0 pkpcb 40 9 0 9 1 0 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1192 21 0 21 3 2 1 1 0 8 1 pppxif 1504 2 0 2 1 1 0 1 0 8 0 pffrag 232 4 0 2 1 0 1 1 0 482 0 pffrnode 88 4 0 2 1 0 1 1 0 8 0 pffrent 40 6 0 4 1 0 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 1 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 57 0 20 1 0 1 1 0 8 0 pfstkey 128 58 0 21 2 0 2 2 0 8 0 pfstate 384 57 0 21 5 0 5 5 0 8 0 pfrule 1344 58 0 19 5 1 4 4 0 8 0 art_heap8 4096 4 0 1 4 1 3 4 0 8 0 art_heap4 256 572 0 240 29 4 25 27 0 8 1 art_table 40 576 0 241 5 0 5 5 0 8 0 art_node 32 151 0 79 1 0 1 1 0 8 0 sysvmsgpl 40 15 0 9 1 0 1 1 0 8 0 semapl 112 36 0 26 1 0 1 1 0 8 0 shmpl 112 29 0 4 1 0 1 1 0 8 0 dirhash 1024 26 0 9 3 0 3 3 0 8 0 dino2pl 256 2776 0 1264 95 0 95 95 0 8 0 ffsino 288 2776 0 1264 109 0 109 109 0 8 0 nchpl 144 3962 0 2265 64 0 64 64 0 8 0 uvmvnodes 80 3299 0 0 68 0 68 68 0 8 0 vnodes 216 3299 0 0 184 0 184 184 0 8 0 namei 1024 12695 0 12693 2 1 1 2 0 8 0 percpumem 16 80 0 33 1 0 1 1 0 8 0 kstatmem 264 76 0 54 3 1 2 3 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 23540 0 23540 10 9 1 8 1 8 1 plimitpl 152 147 0 129 1 0 1 1 0 8 0 sigapl 424 1158 0 1086 10 1 9 9 0 8 0 knotepl 120 557 0 0 17 0 17 17 0 8 0 kqueuepl 224 313 0 301 5 4 1 5 0 8 0 pipepl 336 165 0 137 3 0 3 3 0 8 0 fdescpl 520 1117 0 1084 3 0 3 3 0 8 0 filepl 160 6265 0 6029 18 7 11 17 0 8 0 lockfpl 104 393 0 389 1 0 1 1 0 8 0 lockfspl 48 172 0 169 1 0 1 1 0 8 0 sessionpl 144 28 0 20 1 0 1 1 0 8 0 pgrppl 48 47 0 31 1 0 1 1 0 8 0 ucredpl 104 637 0 623 1 0 1 1 0 8 0 zombiepl 144 1086 0 1086 1 0 1 1 0 8 1 processpl 1240 1158 0 1086 6 0 6 6 0 8 0 procpl 656 2315 0 2234 8 0 8 8 0 8 0 sosppl 168 2 0 2 2 1 1 1 0 8 1 sockpl 728 1670 0 1635 18 11 7 15 0 8 3 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 107 0 0 14 0 14 14 0 8 0 mcl2k 2048 47 0 0 6 0 6 6 0 8 0 mtagpl 96 19 0 0 1 0 1 1 0 8 0 mbufpl 256 1168 0 0 73 0 73 73 0 8 0 bufpl 280 11224 0 5082 439 0 439 439 0 8 0 anonpl 32 11690 0 0 95 0 95 95 0 246 0 amapchunkpl 152 30174 0 29696 34 5 29 29 0 158 8 amappl16 200 4994 0 4961 49 23 26 27 0 8 17 amappl15 192 7 0 7 2 1 1 1 0 8 1 amappl14 184 122 0 110 1 0 1 1 0 8 0 amappl13 176 3 0 3 1 1 0 1 0 8 0 amappl12 168 1785 0 1752 4 2 2 3 0 8 0 amappl11 160 54 0 39 1 0 1 1 0 8 0 amappl10 152 6 0 6 2 2 0 1 0 8 0 amappl9 144 247 0 247 1 1 0 1 0 8 0 amappl8 136 32 0 30 1 0 1 1 0 8 0 amappl7 128 115 0 103 1 0 1 1 0 8 0 amappl6 120 198 0 194 1 0 1 1 0 8 0 amappl5 112 142 0 130 1 0 1 1 0 8 0 amappl4 104 339 0 319 1 0 1 1 0 8 0 amappl3 96 5907 0 5798 5 1 4 4 0 8 0 amappl2 88 679 0 615 2 0 2 2 0 8 0 amappl1 80 11774 0 11164 15 0 15 15 0 8 0 amappl 88 8356 0 8192 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 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 31 0 4 1 0 1 1 0 8 0 uaddrrnd 24 1117 0 1084 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1117 0 1084 1 0 1 1 0 8 0 vmmpekpl 168 10276 0 10225 3 0 3 3 0 8 0 vmmpepl 168 77688 0 75669 116 8 108 109 0 357 5 vmsppl 480 1116 0 1084 5 0 5 5 0 8 0 rwobjpl 72 26712 0 22450 86 0 86 86 0 8 4 pdppl 4096 2242 0 2168 99 23 76 82 0 8 2 pvpl 32 19537 0 0 158 0 158 158 0 265 0 pmappl 256 1116 0 1084 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 455 0 38 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837e4ff0) 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(ffffffff838cc958) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838cc958) at __mp_lock+0x192 sys/kern/kern_lock.c:165 softintr_dispatch(0) at softintr_dispatch+0x12a sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsoftclock() at Xsoftclock+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu_x86.c:1218 sched_idle(ffffffff837e4ff0) at sched_idle+0x4d8 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: 6 ddb{0}> trace x86_ipi_db(ffffffff837e4ff0) 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(ffffffff838cc958) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838cc958) at __mp_lock+0x192 sys/kern/kern_lock.c:165 softintr_dispatch(0) at softintr_dispatch+0x12a sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsoftclock() at Xsoftclock+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu_x86.c:1218 sched_idle(ffffffff837e4ff0) at sched_idle+0x4d8 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -9 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(ffffffff83392e73) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff80003c483688,ffff80003c483688,3c3761135c7a158d) at ufs_dirbadentry VOP_LOOKUP(fffffd800b039000,ffff80003c483858,ffff80003c483888) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80003c483828) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80003c483828) at namei+0x7aa sys/kern/vfs_lookup.c:250 dorenameat(ffff80002a3c8a78,ffffff9c,200000000080,ffffff9c,2000000000c0) at dorenameat+0x145 sys/kern/vfs_syscalls.c:3000 syscall(ffff80003c483ad0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c483ad0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9ad70bb8790, count: 6 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83392e73) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff80003c483688,ffff80003c483688,3c3761135c7a158d) at ufs_dirbadentry VOP_LOOKUP(fffffd800b039000,ffff80003c483858,ffff80003c483888) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80003c483828) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80003c483828) at namei+0x7aa sys/kern/vfs_lookup.c:250 dorenameat(ffff80002a3c8a78,ffffff9c,200000000080,ffffff9c,2000000000c0) at dorenameat+0x145 sys/kern/vfs_syscalls.c:3000 syscall(ffff80003c483ad0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c483ad0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9ad70bb8790, count: -9