panic: ufs_rename: lost dir entry Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 465757 70765 0 0 0 0 syz-executor.1 *378626 15701 0 0x1000 0x4080000 1K syz-executor.3 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8245df3b) at panic+0x177 sys/kern/subr_prf.c:202 ufs_rename(ffff800027cc5998) at ufs_rename+0x15b1 sys/ufs/ufs/ufs_vnops.c:921 VOP_RENAME(fffffd8061be0048,fffffd806c6a8cd8,ffff800027cc5b68,fffffd8061be0048,0,ffff800027cc5ab8) at VOP_RENAME+0xf0 sys/kern/vfs_vops.c:386 dorenameat(ffff800021239500,ffffff9c,200000c0,ffffff9c,20000100) at dorenameat+0x29c sys/kern/vfs_syscalls.c:3021 syscall(ffff800027cc5d00) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027cc5d00) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf5c77c11730, count: 8 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: ufs_rename: lost dir entry ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8245df3b) at panic+0x177 sys/kern/subr_prf.c:202 ufs_rename(ffff800027cc5998) at ufs_rename+0x15b1 sys/ufs/ufs/ufs_vnops.c:921 VOP_RENAME(fffffd8061be0048,fffffd806c6a8cd8,ffff800027cc5b68,fffffd8061be0048,0,ffff800027cc5ab8) at VOP_RENAME+0xf0 sys/kern/vfs_vops.c:386 dorenameat(ffff800021239500,ffffff9c,200000c0,ffffff9c,20000100) at dorenameat+0x29c sys/kern/vfs_syscalls.c:3021 syscall(ffff800027cc5d00) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027cc5d00) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf5c77c11730, count: -7 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800027cc5720 rbx 0xffff800020d39bff rdx 0 rcx 0 rax 0xffff800021239500 r8 0x101010101010101 r9 0x8080808080808080 r10 0xfa44df1b8ca8877b r11 0x5588068af3d59326 r12 0xffff800020d39a00 r13 0 r14 0 r15 0x1 rip 0xffffffff81410c88 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800027cc5710 ss 0 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.3) pid=378626 stat=onproc flags process=1000 proc=4080000 pri=17, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800027b20fd0,0xffff800021239270 process=0xffff800027d0c458 user=0xffff800027cc0000, vmspace=0xfffffd806ee69cf8 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 62299 123319 77691 0 2 0 syz-executor.0 62299 257491 77691 0 2 0x4000000 syz-executor.0 70765 465757 73096 0 7 0 syz-executor.1 70765 458419 73096 0 2 0x4000000 syz-executor.1 70765 113636 73096 0 3 0x4000080 fsleep syz-executor.1 *15701 378626 50913 0 7 0x4081000 syz-executor.3 15701 385081 50913 0 3 0x4003000 suspend syz-executor.3 77691 362333 47552 0 3 0x82 nanoslp syz-executor.0 50913 50032 47552 0 3 0x82 nanoslp syz-executor.3 73096 375617 47552 0 3 0x82 nanoslp syz-executor.1 35645 518579 47552 0 2 0x2 syz-executor.2 8559 382297 1 0 3 0x100083 ttyopn getty 95217 227708 0 0 3 0x14280 nfsidl nfsio 23975 497849 0 0 3 0x14280 nfsidl nfsio 62260 126147 0 0 3 0x14280 nfsidl nfsio 39620 483370 0 0 3 0x14280 nfsidl nfsio 21940 319676 0 0 3 0x14280 nfsidl nfsio 42181 273777 0 0 3 0x14280 nfsidl nfsio 4066 388248 0 0 3 0x14280 nfsidl nfsio 13819 328070 0 0 3 0x14280 nfsidl nfsio 81781 430153 0 0 3 0x14280 nfsidl nfsio 3575 398487 0 0 3 0x14280 nfsidl nfsio 16791 34179 0 0 3 0x14280 nfsidl nfsio 61904 272470 0 0 3 0x14280 nfsidl nfsio 97177 298643 0 0 3 0x14280 nfsidl nfsio 60827 262986 0 0 3 0x14280 nfsidl nfsio 62885 145874 0 0 3 0x14280 nfsidl nfsio 562 423154 0 0 3 0x14280 nfsidl nfsio 2600 100644 0 0 3 0x14280 nfsidl nfsio 14760 361418 0 0 3 0x14280 nfsidl nfsio 94384 173205 0 0 3 0x14280 nfsidl nfsio 30251 113230 0 0 3 0x14280 nfsidl nfsio 67833 465033 0 0 3 0x14200 bored sosplice 47552 427568 23680 0 3 0x82 thrsleep syz-fuzzer 47552 249339 23680 0 3 0x4000082 thrsleep syz-fuzzer 47552 305236 23680 0 3 0x4000082 thrsleep syz-fuzzer 47552 233504 23680 0 3 0x4000082 thrsleep syz-fuzzer 47552 335401 23680 0 3 0x4000082 thrsleep syz-fuzzer 47552 472825 23680 0 3 0x4000082 thrsleep syz-fuzzer 47552 386441 23680 0 3 0x4000082 kqread syz-fuzzer 47552 492348 23680 0 3 0x4000082 thrsleep syz-fuzzer 47552 210170 23680 0 3 0x4000082 thrsleep syz-fuzzer 23680 138105 29491 0 3 0x10008a sigsusp ksh 29491 187269 94153 0 3 0x9a poll sshd 94153 103395 1 0 3 0x88 poll sshd 22155 100265 95343 74 3 0x100092 bpf pflogd 95343 353300 1 0 3 0x80 netio pflogd 23342 480435 17080 73 3 0x100090 kqread syslogd 17080 113986 1 0 3 0x100082 netio syslogd 10380 289619 1 0 3 0x100080 kqread resolvd 89379 208702 32800 77 3 0x100092 kqread dhcpleased 84605 289127 32800 77 3 0x100092 kqread dhcpleased 32800 145472 1 0 3 0x80 kqread dhcpleased 21300 89888 0 0 3 0x14200 bored smr 14242 459562 0 0 2 0x14200 zerothread 60883 95798 0 0 3 0x14200 aiodoned aiodoned 44074 186066 0 0 3 0x14200 syncer update 74410 23696 0 0 3 0x14200 cleaner cleaner 84527 167828 0 0 3 0x14200 reaper reaper 87346 465361 0 0 3 0x14200 pgdaemon pagedaemon 54928 215790 0 0 3 0x14200 bored viomb 16857 514296 0 0 3 0x40014200 acpi0 acpi0 27172 468681 0 0 3 0x40014200 idle1 39252 162711 0 0 3 0x14200 bored softnet 95767 50083 0 0 3 0x14200 bored systqmp 32486 76231 0 0 3 0x14200 bored systq 7032 219562 0 0 3 0x40014200 bored softclock 65000 197776 0 0 3 0x40014200 idle0 1 325915 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 62299 (syz-executor.0) thread 0xffff800022c89270 (257491) exclusive rwlock vmmaplk r = 0 (0xfffffd8066515470) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5458 #3 uvmfault_lookup+0xb9 sys/uvm/uvm_fault.c:1740 #4 uvm_fault_check+0x603 uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] #4 uvm_fault_check+0x603 sys/uvm/uvm_fault.c:714 #5 uvm_fault+0x102 sys/uvm/uvm_fault.c:602 #6 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #7 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #8 recall_trap+0x8 Process 70765 (syz-executor.1) thread 0xffff800021239260 (458419) exclusive rwlock fdlock r = 0 (0xfffffd807f7d5248) #0 witness_lock+0x44d #1 doopenat+0x11b #2 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #2 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #3 Xsyscall+0x128 Process 15701 (syz-executor.3) thread 0xffff800021239500 (378626) exclusive rrwlock inode r = 0 (0xfffffd806e8bcc50) #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 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1318 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_relookup+0xb0 sys/kern/vfs_lookup.c:782 #11 ufs_rename+0x13c4 sys/ufs/ufs/ufs_vnops.c:1055 #12 VOP_RENAME+0xf0 sys/kern/vfs_vops.c:386 #13 dorenameat+0x29c sys/kern/vfs_syscalls.c:3021 #14 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #14 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #15 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82993908) #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_relookup+0xb0 sys/kern/vfs_lookup.c:782 #10 ufs_rename+0x13c4 sys/ufs/ufs/ufs_vnops.c:1055 #11 VOP_RENAME+0xf0 sys/kern/vfs_vops.c:386 #12 dorenameat+0x29c sys/kern/vfs_syscalls.c:3021 #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 (0xfffffd806e8a4808) #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 vfs_relookup+0x53 sys/kern/vfs_lookup.c:773 #6 ufs_rename+0x13c4 sys/ufs/ufs/ufs_vnops.c:1055 #7 VOP_RENAME+0xf0 sys/kern/vfs_vops.c:386 #8 dorenameat+0x29c sys/kern/vfs_syscalls.c:3021 #9 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #9 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #10 Xsyscall+0x128 Process 35645 (syz-executor.2) thread 0xffff800022c88a90 (518579) exclusive rwlock vmmaplk r = 0 (0xfffffd806901bd30) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5458 #3 uvmspace_fork+0x37 sys/uvm/uvm_map.c:4101 #4 process_new+0x181 sys/kern/kern_fork.c:263 #5 fork1+0x30b sys/kern/kern_fork.c:382 #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10213 6506K 7037K 78643K 33433 0 pcb 13 20K 23K 78643K 2736 0 rtable 171 19K 22K 78643K 5219 0 ifaddr 82 21K 22K 78643K 1973 0 sysctl 3 1K 1K 78643K 3 0 counters 50 34K 35K 78643K 480 0 ioctlops 0 0K 4K 78643K 7929 0 iov 0 0K 32K 78643K 1713 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1504 94K 95K 78643K 9580 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 171 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 387 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 10 33K 45K 78643K 17522 0 sigio 0 0K 0K 78643K 597 0 proc 86 88K 113K 78643K 2799 0 subproc 52 3K 3K 78643K 819 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 741 0 in_multi 46 3K 3K 78643K 1804 0 ether_multi 1 0K 0K 78643K 213 0 mrt 1 0K 0K 78643K 49 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 259 1155K 1155K 78643K 259 0 exec 0 0K 3K 78643K 4397 0 pfkey data 0 0K 0K 78643K 12 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 962 3333K 3347K 78643K 224541 0 UVM aobj 131 4K 4K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 1018 0 NDP 10 0K 1K 78643K 459 0 temp 115 4216K 4320K 78643K 145130 0 kqueue 10 14K 22K 78643K 509 0 SYN cache 2 0K 16K 78643K 4 0 ddb{1}> 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 1164 0 1161 16 15 1 3 0 8 0 rtentry 112 1209 0 1150 2 0 2 2 0 8 0 unpcb 136 10634 0 10619 106 105 1 9 0 8 0 syncache 296 43 0 43 11 11 0 1 0 8 0 tcpqe 32 80 13 80 4 4 0 1 0 8 0 tcpcb 736 6274 0 6268 194 193 1 15 0 8 0 arp 120 133 0 123 1 0 1 1 0 8 0 inpcb 304 18566 0 18557 200 199 1 11 0 8 0 rttmr 72 6 0 6 3 3 0 1 0 8 0 nd6 48 306 0 294 1 0 1 1 0 8 0 pkpcb 40 113 0 113 11 11 0 1 0 8 0 kcovpl 48 63 0 59 1 0 1 1 0 8 0 ppxss 1248 86 0 86 16 16 0 1 0 8 0 pfstscr 40 89 0 89 5 5 0 1 0 8 0 pffrag 232 208 0 208 8 8 0 1 0 482 0 pffrnode 88 206 0 206 8 8 0 1 0 8 0 pffrent 40 956 0 956 8 8 0 1 0 8 0 pfosfp 40 1498 0 1074 5 0 5 5 0 8 0 pfosfpen 112 1498 0 782 21 0 21 21 0 8 0 pfrktable 1344 863 0 850 10 8 2 2 0 8 0 pftag 88 45 0 42 2 1 1 1 0 8 0 pfqueue 264 4 0 1 1 0 1 1 0 8 0 pfstitem 24 21 0 19 1 0 1 1 0 8 0 pfstkey 112 132 0 130 1 0 1 1 0 8 0 pfstate 320 105 0 103 2 1 1 2 0 8 0 pfrule 1360 1279 0 1191 9 1 8 8 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 6194 0 5976 45 31 14 22 0 8 0 art_table 32 6195 0 5976 6 3 3 3 0 8 0 art_node 16 1202 0 1155 1 0 1 1 0 8 0 semupl 112 5 0 5 1 1 0 1 0 8 0 semapl 112 377 0 367 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 27040 0 25588 91 0 91 91 0 8 0 ffsino 272 27040 0 25588 98 1 97 97 0 8 0 nchpl 144 51848 0 50241 61 0 61 61 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 187570 0 187568 12 11 1 2 0 8 0 percpumem 16 252 0 215 1 0 1 1 0 8 0 vcpupl 2048 506 0 2 64 0 64 64 0 8 0 vmpool 560 514 0 10 37 0 37 37 0 8 0 pfiaddrpl 120 280 0 254 5 4 1 1 0 8 0 scsiplug 72 6 0 6 2 2 0 1 0 8 0 scxspl 216 157832 0 157832 38 37 1 8 0 8 1 plimitpl 152 1594 0 1583 1 0 1 1 0 8 0 sigapl 424 17613 0 17555 7 0 7 7 0 8 0 futexpl 64 144820 0 144819 15 14 1 1 0 8 0 knotepl 112 160 0 0 3 0 3 3 0 8 0 kqueuepl 216 4138 0 4131 79 78 1 5 0 8 0 pipepl 336 3992 0 3975 122 120 2 12 0 8 0 fdescpl 496 17573 0 17550 6 3 3 4 0 8 0 filepl 152 133343 0 133187 190 183 7 17 0 8 1 lockfpl 104 5305 0 5302 15 14 1 2 0 8 0 lockfspl 48 1265 0 1262 1 0 1 1 0 8 0 sessionpl 144 82 0 69 1 0 1 1 0 8 0 pgrppl 48 221 0 208 1 0 1 1 0 8 0 ucredpl 96 12969 0 12956 1 0 1 1 0 8 0 zombiepl 144 20075 0 20074 5 4 1 1 0 8 0 processpl 1064 17613 0 17555 7 2 5 5 0 8 0 procpl 672 51244 0 51173 21 14 7 8 0 8 0 srpgc 96 44 0 44 11 11 0 1 0 8 0 sosppl 168 153 0 153 27 27 0 1 0 8 0 sockpl 480 30498 0 30471 542 538 4 34 0 8 0 mcl64k 65536 26 0 0 3 0 3 3 0 8 0 mcl16k 16384 33 0 0 4 1 3 3 0 8 0 mcl12k 12288 35 0 0 2 0 2 2 0 8 0 mcl9k 9216 42 0 0 2 0 2 2 0 8 0 mcl8k 8192 54 0 0 6 3 3 3 0 8 0 mcl4k 4096 54 0 0 6 3 3 3 0 8 0 mcl2k2 2112 15 0 0 1 0 1 1 0 8 0 mcl2k 2048 553 0 0 47 27 20 47 0 8 2 mtagpl 96 841 0 0 11 1 10 10 0 8 0 mbufpl 256 1666 0 0 63 0 63 63 0 8 0 bufpl 288 33756 0 27412 454 0 454 454 0 8 0 anonpl 24 5013209 0 4992226 385 244 141 156 0 186 0 amapchunkpl 152 568630 0 567859 181 148 33 46 0 158 0 amappl16 200 43362 0 42453 149 98 51 62 0 8 0 amappl15 192 1917 0 1916 6 5 1 1 0 8 0 amappl14 184 3351 0 3345 2 1 1 1 0 8 0 amappl13 176 2150 0 2149 1 0 1 1 0 8 0 amappl12 168 4408 0 4398 1 0 1 1 0 8 0 amappl11 160 2273 0 2259 1 0 1 1 0 8 0 amappl10 152 3027 0 3018 1 0 1 1 0 8 0 amappl9 144 1624 0 1619 1 0 1 1 0 8 0 amappl8 136 2339 0 2221 5 0 5 5 0 8 0 amappl7 128 945 0 932 1 0 1 1 0 8 0 amappl6 120 1672 0 1648 1 0 1 1 0 8 0 amappl5 112 13631 0 13612 1 0 1 1 0 8 0 amappl4 104 7333 0 7302 1 0 1 1 0 8 0 amappl3 96 6080 0 6060 1 0 1 1 0 8 0 amappl2 88 6582 0 6523 4 2 2 2 0 8 0 amappl1 80 322951 0 322442 16 4 12 13 0 8 0 amappl 88 222429 0 222007 11 1 10 10 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 18086 0 17560 4 0 4 4 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 18086 0 17560 4 0 4 4 0 8 0 vmmpekpl 168 119486 0 119417 4 0 4 4 0 8 0 vmmpepl 168 1633086 0 1629331 590 408 182 229 0 357 0 vmsppl 368 18086 0 17560 51 3 48 49 0 8 0 rwobjpl 56 391296 0 383168 127 9 118 119 0 8 0 pdppl 4096 36180 0 35624 656 98 558 564 0 8 2 pvpl 32 8432782 0 8409679 655 446 209 260 0 265 8 pmappl 248 18085 0 17560 36 3 33 34 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 1932 0 494 42 0 42 42 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff827f3ff0) 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 __mp_lock(ffffffff82993700) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82993700) at __mp_lock+0x129 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7fffffafc0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff827f3ff0) 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 __mp_lock(ffffffff82993700) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82993700) at __mp_lock+0x129 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7fffffafc0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8245df3b) at panic+0x177 sys/kern/subr_prf.c:202 ufs_rename(ffff800027cc5998) at ufs_rename+0x15b1 sys/ufs/ufs/ufs_vnops.c:921 VOP_RENAME(fffffd8061be0048,fffffd806c6a8cd8,ffff800027cc5b68,fffffd8061be0048,0,ffff800027cc5ab8) at VOP_RENAME+0xf0 sys/kern/vfs_vops.c:386 dorenameat(ffff800021239500,ffffff9c,200000c0,ffffff9c,20000100) at dorenameat+0x29c sys/kern/vfs_syscalls.c:3021 syscall(ffff800027cc5d00) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027cc5d00) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf5c77c11730, count: 8 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8245df3b) at panic+0x177 sys/kern/subr_prf.c:202 ufs_rename(ffff800027cc5998) at ufs_rename+0x15b1 sys/ufs/ufs/ufs_vnops.c:921 VOP_RENAME(fffffd8061be0048,fffffd806c6a8cd8,ffff800027cc5b68,fffffd8061be0048,0,ffff800027cc5ab8) at VOP_RENAME+0xf0 sys/kern/vfs_vops.c:386 dorenameat(ffff800021239500,ffffff9c,200000c0,ffffff9c,20000100) at dorenameat+0x29c sys/kern/vfs_syscalls.c:3021 syscall(ffff800027cc5d00) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027cc5d00) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf5c77c11730, count: -7