panic: bad dir Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 444355 17076 0 0 0 0 syz-executor *234267 4181 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff832e683b) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_lookup() at ufs_lookup+0x1eda VOP_LOOKUP(fffffd800b039798,ffff80003c45b6b8,ffff80003c45b6e8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80003c45b688) at vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 namei(ffff80003c45b688) at namei+0x7ca sys/kern/vfs_lookup.c:250 dorenameat(ffff80003c493258,ffffff9c,200000000080,ffffff9c,2000000000c0) at dorenameat+0x144 sys/kern/vfs_syscalls.c:3000 syscall(ffff80003c45b930) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c45b930) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfa686378340, 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(ffffffff832e683b) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_lookup() at ufs_lookup+0x1eda VOP_LOOKUP(fffffd800b039798,ffff80003c45b6b8,ffff80003c45b6e8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80003c45b688) at vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 namei(ffff80003c45b688) at namei+0x7ca sys/kern/vfs_lookup.c:250 dorenameat(ffff80003c493258,ffffff9c,200000000080,ffffff9c,2000000000c0) at dorenameat+0x144 sys/kern/vfs_syscalls.c:3000 syscall(ffff80003c45b930) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c45b930) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfa686378340, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c45b320 rbx 0xffff8000299eeddf rdx 0 rcx 0xffff80003c493258 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x94343f6e56930bd9 r11 0xde82d7c198b6398a r12 0xffff8000299eebe0 r13 0 r14 0 r15 0x1 rip 0xffffffff81a1edf5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c45b310 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=234267 pid=4181 tcnt=4 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=0xffff80003c492a90,0xffff80003c492808 process=0xffff80003c47b5d0 user=0xffff80003c456000, vmspace=0xfffffd805e932d80 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 17076 444355 76200 0 7 0 syz-executor 17076 63539 76200 0 2 0x4000000 syz-executor 93369 477220 7014 0 2 0x10 syz-executor 93369 83211 7014 0 3 0x4000090 fsleep syz-executor 4181 115641 98470 0 3 0x80 nanoslp syz-executor 4181 367663 98470 0 3 0x4000080 fsleep syz-executor * 4181 234267 98470 0 7 0x4000000 syz-executor 4181 364360 98470 0 3 0x4000080 fsleep syz-executor 54362 159150 32232 0 2 0 syz-executor 54362 393840 32232 0 3 0x4000080 fsleep syz-executor 99513 254036 5048 0 2 0 syz-executor 48554 182265 8648 0 3 0 vmmaplk syz-executor 48554 197292 8648 0 3 0x4000000 physio syz-executor 48554 70763 8648 0 3 0x4000080 fsleep syz-executor 47453 95855 0 0 3 0x14200 acct acct 12634 500971 46985 0 2 0 syz-executor 12634 239718 46985 0 3 0x4000080 ttyopn syz-executor 95501 96917 40859 0 2 0 syz-executor 95501 377885 40859 0 3 0x4000080 nanoslp syz-executor 95501 39395 40859 0 3 0x4000080 fsleep syz-executor 85322 316856 1 0 3 0x100083 ttyin getty 15241 308680 90396 0 3 0x82 sbwait sshd-session 83098 345495 0 0 3 0x14280 nfsidl nfsio 54526 244397 0 0 3 0x14280 nfsidl nfsio 74090 377824 0 0 3 0x14280 nfsidl nfsio 30293 347148 0 0 3 0x14280 nfsidl nfsio 90847 425452 0 0 3 0x14280 nfsidl nfsio 1040 514840 0 0 3 0x14280 nfsidl nfsio 962 133561 0 0 3 0x14280 nfsidl nfsio 33210 519203 0 0 3 0x14280 nfsidl nfsio 15868 501558 0 0 3 0x14280 nfsidl nfsio 97751 145681 0 0 3 0x14280 nfsidl nfsio 38102 415180 0 0 3 0x14280 nfsidl nfsio 47828 207374 0 0 3 0x14280 nfsidl nfsio 90221 267488 0 0 3 0x14280 nfsidl nfsio 10133 314700 0 0 3 0x14280 nfsidl nfsio 91512 145246 0 0 3 0x14280 nfsidl nfsio 61323 406168 0 0 3 0x14280 nfsidl nfsio 73961 62412 0 0 3 0x14280 nfsidl nfsio 74378 224263 0 0 3 0x14280 nfsidl nfsio 22080 134794 0 0 3 0x14280 nfsidl nfsio 94755 209029 0 0 3 0x14280 nfsidl nfsio 570 218106 0 0 3 0x14200 bored sosplice 5048 11977 77546 0 3 0x82 nanoslp syz-executor 32232 25071 77546 0 3 0x82 nanoslp syz-executor 8648 413052 77546 0 3 0x82 nanoslp syz-executor 76200 70306 77546 0 3 0x82 nanoslp syz-executor 46985 10770 77546 0 3 0x82 nanoslp syz-executor 7014 324685 77546 0 3 0x82 nanoslp syz-executor 40859 372573 77546 0 3 0x82 nanoslp syz-executor 98470 409864 77546 0 3 0x82 nanoslp syz-executor 77546 231960 32789 0 3 0x82 kqread syz-executor 32789 192089 88067 0 3 0x10008a sigsusp ksh 88067 250605 98098 0 3 0x98 kqread sshd-session 98098 209262 90396 0 3 0x92 kqread sshd-session 90396 118010 1 0 3 0x88 kqread sshd 35690 107244 25707 74 3 0x1100092 bpf pflogd 25707 362413 1 0 3 0x80 sbwait pflogd 64575 479376 93678 73 3 0x1100090 kqread syslogd 93678 332543 1 0 3 0x100082 sbwait syslogd 54868 114904 1 0 3 0x100080 kqread resolvd 48493 437009 49967 77 3 0x100092 kqread dhcpleased 49852 311993 49967 77 3 0x100092 kqread dhcpleased 49967 479656 1 0 3 0x80 kqread dhcpleased 35668 356935 0 0 3 0x14200 bored smr 35022 496036 0 0 3 0x14200 pgzero zerothread 71780 275691 0 0 3 0x14200 aiodoned aiodoned 97019 434850 0 0 3 0x14200 syncer update 14539 258698 0 0 3 0x14200 cleaner cleaner 20357 166366 0 0 3 0x14200 reaper reaper 99108 14223 0 0 3 0x14200 pgdaemon pagedaemon 70681 305270 0 0 3 0x14200 bored viomb 22951 78949 0 0 3 0x40014200 acpi0 acpi0 1849 78635 0 0 3 0x40014200 idle1 30629 29433 0 0 3 0x14200 bored softnet7 81999 264564 0 0 3 0x14200 bored softnet6 2852 187529 0 0 3 0x14200 bored softnet5 93063 28682 0 0 3 0x14200 bored softnet4 47241 5178 0 0 3 0x14200 bored softnet3 19052 114194 0 0 3 0x14200 bored softnet2 333 224291 0 0 3 0x14200 bored softnet1 28515 248791 0 0 3 0x14200 bored softnet0 18761 98361 0 0 3 0x14200 bored systqmp 78101 522224 0 0 3 0x14200 bored systq 36616 64427 0 0 3 0x14200 tmoslp softclockmp 72937 142323 0 0 3 0x40014200 tmoslp softclock 39637 436542 0 0 3 0x40014200 idle0 1 193798 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 4181 (syz-executor) thread 0xffff80003c493258 (234267) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83921c88) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2d8 sys/kern/kern_synch.c:367 #3 biowait+0xc6 sys/kern/vfs_bio.c:1242 #4 ffs_bufatoff+0x16f sys/ufs/ffs/ffs_subr.c:71 #5 ufs_lookup+0x58e sys/ufs/ufs/ufs_lookup.c:256 #6 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #7 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #8 namei+0x7ca sys/kern/vfs_lookup.c:250 #9 dorenameat+0x144 sys/kern/vfs_syscalls.c:3000 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807e4b9e80) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 dorenameat+0x144 sys/kern/vfs_syscalls.c:3000 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 48554 (syz-executor) thread 0xffff80002a2e4a98 (197292) shared rwlock vmmaplk r = 0 (0xfffffd805e932310) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvm_vslock_device+0x149 sys/uvm/uvm_glue.c:173 #3 physio+0x257 sys/kern/kern_physio.c:139 #4 spec_write+0x11f sys/kern/spec_vnops.c:302 #5 VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 #6 vn_write+0x1d3 sys/kern/vfs_vnops.c:408 #7 dofilewritev+0x242 sys/kern/sys_generic.c:380 #8 sys_write+0xa2 sys/kern/sys_generic.c:300 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #10 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10235 11106K 12356K 166960K 12525 0 pcb 19 12K 12K 166960K 133 0 rtable 216 8K 8K 166960K 407 0 pf 36 18K 81K 166960K 129 0 ifaddr 42 7K 8K 166960K 83 0 ifgroup 55 2K 2K 166960K 134 0 sysctl 4 1K 9K 166960K 14 0 counters 68 36K 37K 166960K 148 0 ioctlops 0 0K 4K 166960K 1680 0 iov 0 0K 28K 166960K 33 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1449 91K 91K 166960K 2036 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 25 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 20 179K 240K 166960K 831 0 sigio 0 0K 0K 166960K 94 0 proc 72 115K 180K 166960K 647 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 88 0 in_multi 98 7K 7K 166960K 112 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 444 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 251 169K 178K 166960K 9082 0 UVM aobj 17 2K 2K 166960K 17 0 pinsyscall 45 90K 100K 166960K 1933 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 33 0 NDP 12 0K 1K 166960K 54 0 temp 76 8652K 8724K 166960K 28825 0 kqueue 15 22K 30K 166960K 164 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 85 0 82 1 0 1 1 0 8 0 rtentry 176 119 0 30 5 0 5 5 0 8 0 unpcb 144 481 0 460 5 3 2 4 0 8 1 syncache 336 9 0 9 4 3 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 236 0 229 8 6 2 7 0 8 1 arp 128 11 0 2 1 0 1 1 0 8 0 inpcb 328 877 0 863 12 8 4 9 0 8 2 nd6 144 22 0 1 1 0 1 1 0 8 0 pkpcb 40 7 0 7 3 2 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 5 0 5 2 2 0 1 0 8 0 ppxss 1192 30 0 30 2 1 1 1 0 8 1 pppxif 1504 8 0 8 1 1 0 1 0 8 0 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pffrag 232 3 0 0 1 0 1 1 0 482 0 pffrnode 88 3 0 0 1 0 1 1 0 8 0 pffrent 40 7 0 4 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 pfrktable 1344 3 0 3 1 1 0 1 0 8 0 pftag 88 6 0 2 1 0 1 1 0 8 0 pfstitem 24 77 0 17 1 0 1 1 0 8 0 pfstkey 128 77 0 17 2 0 2 2 0 8 0 pfstate 384 76 0 17 6 0 6 6 0 8 0 pfrule 1344 31 0 23 2 1 1 2 0 8 0 rttmr 136 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 564 0 125 31 3 28 30 0 8 0 art_table 40 566 0 125 5 0 5 5 0 8 0 art_node 32 118 0 41 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semapl 112 23 0 13 1 0 1 1 0 8 0 shmpl 112 14 0 0 1 0 1 1 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 2823 0 1308 96 0 96 96 0 8 0 ffsino 296 2823 0 1308 118 0 118 118 0 8 0 nchpl 144 3951 0 2255 64 0 64 64 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 uvmvnodes 80 3337 0 0 69 0 69 69 0 8 0 vnodes 216 3337 0 0 186 0 186 186 0 8 0 namei 1024 13820 0 13818 2 1 1 2 0 8 0 percpumem 16 89 0 40 1 0 1 1 0 8 0 kstatmem 264 78 0 52 4 2 2 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scxspl 216 28344 0 28343 11 9 2 8 1 8 1 plimitpl 152 222 0 202 1 0 1 1 0 8 0 sigapl 424 1137 0 1060 9 0 9 9 0 8 0 knotepl 120 537 0 0 17 0 17 17 0 8 0 kqueuepl 224 260 0 247 1 0 1 1 0 8 0 pipepl 344 198 0 171 6 0 6 6 0 8 3 fdescpl 528 1088 0 1055 3 0 3 3 0 8 0 filepl 160 6613 0 6381 20 6 14 16 0 8 3 lockfpl 104 429 0 426 2 0 2 2 0 8 1 lockfspl 48 108 0 105 1 0 1 1 0 8 0 sessionpl 144 29 0 19 1 0 1 1 0 8 0 pgrppl 48 46 0 28 1 0 1 1 0 8 0 ucredpl 104 1049 0 1035 1 0 1 1 0 8 0 zombiepl 144 1060 0 1060 1 0 1 1 0 8 1 processpl 1248 1137 0 1060 7 0 7 7 0 8 0 procpl 664 2336 0 2248 8 0 8 8 0 8 0 sosppl 168 10 0 10 2 1 1 1 0 8 1 sockpl 752 1475 0 1436 20 13 7 17 0 8 2 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k 2048 31 0 0 4 0 4 4 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 231 0 0 14 0 14 14 0 8 0 bufpl 280 11689 0 5545 439 0 439 439 0 8 0 anonpl 32 11631 0 0 95 1 94 94 0 246 0 amapchunkpl 152 29313 0 28808 38 10 28 30 0 158 7 amappl16 200 4777 0 4636 48 32 16 27 0 8 8 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 127 0 114 1 0 1 1 0 8 0 amappl13 176 9 0 9 1 1 0 1 0 8 0 amappl12 168 1753 0 1720 3 0 3 3 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 258 0 258 1 1 0 1 0 8 0 amappl8 136 25 0 22 1 0 1 1 0 8 0 amappl7 128 113 0 100 1 0 1 1 0 8 0 amappl6 120 214 0 209 1 0 1 1 0 8 0 amappl5 112 127 0 117 1 0 1 1 0 8 0 amappl4 104 332 0 313 1 0 1 1 0 8 0 amappl3 96 5801 0 5685 5 1 4 4 0 8 0 amappl2 88 689 0 621 2 0 2 2 0 8 0 amappl1 80 12192 0 11497 17 1 16 16 0 8 0 amappl 88 8232 0 8060 7 2 5 5 0 92 0 dma16384 16384 1 0 1 1 1 0 1 0 8 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 16 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1088 0 1055 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1088 0 1055 1 0 1 1 0 8 0 vmmpekpl 168 11058 0 11027 3 1 2 3 0 8 0 vmmpepl 168 77166 0 74894 132 18 114 114 0 357 15 vmsppl 488 1087 0 1055 6 1 5 5 0 8 0 rwobjpl 80 26818 0 22322 94 0 94 94 0 8 0 pdppl 4096 2184 0 2110 114 38 76 82 0 8 2 pvpl 32 20926 0 0 169 0 169 169 0 265 0 pmappl 256 1087 0 1055 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 304 0 56 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83825ff0) 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(ffffffff83921a80) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83921a80) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003ac3d9a0,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7954421e6550, count: 9 ddb{0}> trace x86_ipi_db(ffffffff83825ff0) 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(ffffffff83921a80) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83921a80) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003ac3d9a0,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7954421e6550, 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(ffffffff832e683b) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_lookup() at ufs_lookup+0x1eda VOP_LOOKUP(fffffd800b039798,ffff80003c45b6b8,ffff80003c45b6e8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80003c45b688) at vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 namei(ffff80003c45b688) at namei+0x7ca sys/kern/vfs_lookup.c:250 dorenameat(ffff80003c493258,ffffff9c,200000000080,ffffff9c,2000000000c0) at dorenameat+0x144 sys/kern/vfs_syscalls.c:3000 syscall(ffff80003c45b930) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c45b930) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfa686378340, count: 6 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff832e683b) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_lookup() at ufs_lookup+0x1eda VOP_LOOKUP(fffffd800b039798,ffff80003c45b6b8,ffff80003c45b6e8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80003c45b688) at vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 namei(ffff80003c45b688) at namei+0x7ca sys/kern/vfs_lookup.c:250 dorenameat(ffff80003c493258,ffffff9c,200000000080,ffffff9c,2000000000c0) at dorenameat+0x144 sys/kern/vfs_syscalls.c:3000 syscall(ffff80003c45b930) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c45b930) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfa686378340, count: -9