panic: ufs_rename: lost dir entry Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 22853 77090 0 0 0 0 syz-executor * 46400 21342 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834494f1) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_rename(ffff80003c43a038) at ufs_rename+0x175f sys/ufs/ufs/ufs_vnops.c:883 VOP_RENAME(fffffd806486f8c8,fffffd806486feb0,ffff80003c43a208,fffffd806486f8c8,fffffd806486fdd8,ffff80003c43a158) at VOP_RENAME+0x137 sys/kern/vfs_vops.c:376 dorenameat(ffff8000fffe87e8,ffffff9c,200000000080,ffffff9c,2000000000c0) at dorenameat+0x3f7 sys/kern/vfs_syscalls.c:3034 syscall(ffff80003c43a3a0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c43a3a0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x38353276e30, 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+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834494f1) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_rename(ffff80003c43a038) at ufs_rename+0x175f sys/ufs/ufs/ufs_vnops.c:883 VOP_RENAME(fffffd806486f8c8,fffffd806486feb0,ffff80003c43a208,fffffd806486f8c8,fffffd806486fdd8,ffff80003c43a158) at VOP_RENAME+0x137 sys/kern/vfs_vops.c:376 dorenameat(ffff8000fffe87e8,ffffff9c,200000000080,ffffff9c,2000000000c0) at dorenameat+0x3f7 sys/kern/vfs_syscalls.c:3034 syscall(ffff80003c43a3a0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c43a3a0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x38353276e30, count: -7 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c439dc0 rbx 0xffff8000299eee07 rdx 0 rcx 0xffff8000fffe87e8 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x3cb0789c9f883366 r11 0xbf3c8e47f5553e53 r12 0xffff8000299eec08 r13 0 r14 0 r15 0x1 rip 0xffffffff82c33715 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c439db0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=46400 pid=21342 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=80, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffe62c0,0xffff8000fffe7a28 process=0xffff800039bf7510 user=0xffff80003c435000, vmspace=0xfffffd806cb4e018 estcpu=30, cpticks=1, pctcpu=0.1, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 50242 455013 297 0 2 0x1 syz-executor 50242 50980 297 0 3 0x4000001 inode syz-executor 50242 211168 297 0 3 0x4000080 fsleep syz-executor 17441 404841 45872 0 3 0x1 inode syz-executor 17441 368577 45872 0 3 0x4000080 fsleep syz-executor 17441 1965 45872 0 3 0x4000080 fsleep syz-executor 6024 405388 63472 0 3 0x1 inode syz-executor 6024 338524 63472 0 3 0x4000001 inode syz-executor 6024 175086 63472 0 3 0x4000080 fsleep syz-executor 6024 488738 63472 0 3 0x4000080 fsleep syz-executor 77090 22853 29650 0 7 0 syz-executor 77090 443519 29650 0 3 0x4000001 inode syz-executor 77090 456145 29650 0 3 0x4000001 inode syz-executor 1128 281078 8118 0 2 0x1 syz-executor 1128 198617 8118 0 3 0x4000001 inode syz-executor 1128 380090 8118 0 3 0x4000080 fsleep syz-executor 21342 249859 2933 0 2 0 syz-executor *21342 46400 2933 0 7 0x4000000 syz-executor 21342 297132 2933 0 2 0x4000001 syz-executor 21342 185824 2933 0 3 0x4000080 fsleep syz-executor 61076 110885 1242 0 2 0 syz-executor 61076 513102 1242 0 3 0x4000001 inode syz-executor 61076 375889 1242 0 3 0x4000001 inode syz-executor 62709 95414 53632 0 3 0x1 inode syz-executor 62709 194470 53632 0 2 0x4000000 syz-executor 62709 51739 53632 0 3 0x4000080 fsleep syz-executor 8118 80318 94215 0 3 0x3 inode syz-executor 2933 77549 94215 0 3 0x3 inode syz-executor 1242 301929 94215 0 3 0x3 inode syz-executor 53632 439199 94215 0 3 0x3 inode syz-executor 297 377114 94215 0 3 0x3 inode syz-executor 63472 429149 94215 0 3 0x3 inode syz-executor 29650 124675 94215 0 3 0x3 inode syz-executor 45872 339654 94215 0 3 0x3 inode syz-executor 94215 355115 15475 0 3 0x82 kqread syz-executor 15475 52433 42170 0 3 0x10008a sigsusp ksh 42170 256103 96894 0 3 0x98 kqread sshd-session 96894 355080 14747 0 3 0x92 kqread sshd-session 80539 333928 1 0 3 0x100083 ttyopn getty 14747 49918 1 0 3 0x88 kqread sshd 83941 280366 90742 74 3 0x1100092 bpf pflogd 90742 465007 1 0 3 0x80 sbwait pflogd 1797 177716 379 73 3 0x1100090 kqread syslogd 379 429873 1 0 3 0x100082 sbwait syslogd 23752 325125 1 0 3 0x100080 kqread resolvd 29332 55868 7559 77 3 0x100092 kqread dhcpleased 66292 31599 7559 77 3 0x100092 kqread dhcpleased 7559 143281 1 0 3 0x80 kqread dhcpleased 62323 110807 0 0 3 0x14200 bored smr 92493 515984 0 0 2 0x14200 zerothread 33524 232890 0 0 3 0x14200 aiodoned aiodoned 15257 474095 0 0 3 0x14200 syncer update 87476 317792 0 0 3 0x14200 cleaner cleaner 38045 364830 0 0 3 0x14200 reaper reaper 83377 25099 0 0 3 0x14200 pgdaemon pagedaemon 62496 199937 0 0 3 0x14200 bored viomb 3427 315786 0 0 3 0x40014200 acpi0 acpi0 21486 124473 0 0 3 0x40014200 idle1 5862 432921 0 0 3 0x14200 bored softnet1 64931 225936 0 0 3 0x14200 bored softnet0 42512 462638 0 0 3 0x14200 bored systqmp 20861 308437 0 0 3 0x14200 bored systq 83899 179963 0 0 3 0x14200 tmoslp softclockmp 10255 407541 0 0 3 0x40014200 tmoslp softclock 83696 40141 0 0 3 0x40014200 idle0 1 216733 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 21342 (syz-executor) thread 0xffff8000fffe87e8 (46400) exclusive rrwlock inode r = 0 (0xfffffd806eafa790) #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 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_relookup+0xd4 sys/kern/vfs_lookup.c:787 #11 ufs_rename+0x14aa sys/ufs/ufs/ufs_vnops.c:1007 #12 VOP_RENAME+0x137 sys/kern/vfs_vops.c:376 #13 dorenameat+0x3f7 sys/kern/vfs_syscalls.c:3034 #14 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #14 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #15 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c3c5c78) #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_relookup+0x5c sys/kern/vfs_lookup.c:778 #6 ufs_rename+0x14aa sys/ufs/ufs/ufs_vnops.c:1007 #7 VOP_RENAME+0x137 sys/kern/vfs_vops.c:376 #8 dorenameat+0x3f7 sys/kern/vfs_syscalls.c:3034 #9 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838c6370) #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:369 #3 biowait+0xc6 sys/kern/vfs_bio.c:1242 #4 bwrite+0x2e7 sys/kern/vfs_bio.c:754 #5 ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111 #6 ffs_truncate+0xc9b sys/ufs/ffs/ffs_inode.c:-1 #7 ufs_rename+0x13b2 sys/ufs/ufs/ufs_vnops.c:989 #8 VOP_RENAME+0x137 sys/kern/vfs_vops.c:376 #9 dorenameat+0x3f7 sys/kern/vfs_syscalls.c:3034 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #11 Xsyscall+0x128 Process 21342 (syz-executor) thread 0xffff8000fffe8d18 (297132) exclusive rrwlock inode r = 0 (0xfffffd806c3c50e8) #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 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ktrwriteraw+0x175 sys/kern/kern_ktrace.c:688 #7 ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] #7 ktrsysret+0x192 sys/kern/kern_ktrace.c:209 #8 syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] #8 syscall+0xa50 sys/arch/amd64/amd64/trap.c:796 #9 Xsyscall+0x128 Process 62709 (syz-executor) thread 0xffff8000fffe7780 (194470) exclusive rwlock fdlock r = 0 (0xffff8000fffebd50) #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 sys_socketpair+0x2fa sys/kern/uipc_syscalls.c:492 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #4 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10202 11040K 11710K 166960K 11564 0 pcb 19 12K 12K 166960K 78 0 rtable 257 10K 10K 166960K 457 0 pf 35 17K 20K 166960K 76 0 ifaddr 43 7K 8K 166960K 61 0 ifgroup 55 2K 2K 166960K 87 0 sysctl 3 1K 9K 166960K 8 0 counters 68 36K 37K 166960K 118 0 ioctlops 0 0K 4K 166960K 1600 0 iov 0 0K 12K 166960K 22 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1363 86K 86K 166960K 1563 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 18 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 110K 166960K 451 0 sigio 0 0K 0K 166960K 2 0 proc 72 115K 147K 166960K 561 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 123 0 in_multi 99 7K 7K 166960K 117 0 ether_multi 1 0K 0K 166960K 4 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 509 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 261 160K 173K 166960K 5925 0 UVM aobj 8 2K 2K 166960K 8 0 pinsyscall 43 86K 108K 166960K 1568 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 2K 166960K 41 0 temp 58 8677K 8831K 166960K 20820 0 kqueue 14 22K 30K 166960K 87 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 88 0 84 2 1 1 2 0 8 0 rtentry 176 114 0 2 6 0 6 6 0 8 0 unpcb 144 448 0 424 6 0 6 6 0 8 5 syncache 336 5 0 5 2 1 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 199 0 193 7 6 1 7 0 8 0 arp 136 19 0 0 1 0 1 1 0 8 0 inpcb 328 575 0 562 13 6 7 8 0 8 5 nd6 152 24 0 0 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 23 0 23 1 0 1 1 0 8 1 pppxif 1504 1 0 1 1 0 1 1 0 8 1 pffrag 232 5 0 1 1 0 1 1 0 482 0 pffrnode 88 4 0 1 1 0 1 1 0 8 0 pffrent 40 9 0 5 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 1 0 1 1 1 0 1 0 8 0 pfstitem 24 43 0 3 1 0 1 1 0 8 0 pfstkey 128 43 0 3 2 0 2 2 0 8 0 pfstate 448 43 0 3 5 0 5 5 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 460 0 6 29 0 29 29 0 8 0 art_table 40 462 0 6 5 0 5 5 0 8 0 art_node 32 114 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semupl 112 2 0 2 2 1 1 1 0 8 1 semapl 112 15 0 5 1 0 1 1 0 8 0 shmpl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2158 0 651 96 0 96 96 0 8 0 ffsino 296 2158 0 651 118 0 118 118 0 8 0 nchpl 144 2809 0 1110 64 0 64 64 0 8 0 rtmask 32 5 0 5 2 1 1 1 0 8 1 vnodes 216 2331 0 0 130 0 130 130 0 8 0 namei 1024 8993 0 8991 2 1 1 1 0 8 0 percpumem 16 74 0 25 1 0 1 1 0 8 0 kstatmem 264 52 0 26 3 0 3 3 0 8 1 scsiplug 72 2 0 2 2 1 1 1 0 8 1 scxspl 216 15483 0 15483 11 9 2 8 1 8 2 plimitpl 152 85 0 68 1 0 1 1 0 8 0 sigapl 424 752 0 704 7 1 6 7 0 8 0 knotepl 120 313 0 0 10 0 10 10 0 8 0 kqueuepl 224 144 0 134 1 0 1 1 0 8 0 pipepl 344 209 0 182 8 0 8 8 0 8 5 fdescpl 528 736 0 704 3 0 3 3 0 8 0 filepl 160 3982 0 3691 23 5 18 23 0 8 5 lockfpl 104 122 0 117 1 0 1 1 0 8 0 lockfspl 48 45 0 41 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 36 0 19 1 0 1 1 0 8 0 ucredpl 104 402 0 389 1 0 1 1 0 8 0 zombiepl 144 813 0 813 1 0 1 1 0 8 1 processpl 1232 752 0 704 5 0 5 5 0 8 0 procpl 664 1332 0 1266 6 0 6 6 0 8 0 sosppl 176 6 0 6 1 1 0 1 0 8 0 sockpl 752 1125 0 1084 24 12 12 24 0 8 7 mcl64k 65536 16 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 15 0 15 15 0 8 0 mcl2k 2048 59 0 0 8 0 8 8 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 214 0 0 14 0 14 14 0 8 0 bufpl 280 6214 0 133 435 0 435 435 0 8 0 anonpl 32 9780 0 0 79 0 79 79 0 246 0 amapchunkpl 152 19158 0 18603 36 5 31 31 0 158 9 amappl16 200 3511 0 3475 31 16 15 22 0 8 11 amappl15 192 14 0 14 1 1 0 1 0 8 0 amappl14 184 6 0 6 1 1 0 1 0 8 0 amappl13 176 430 0 429 1 0 1 1 0 8 0 amappl12 168 1093 0 1050 3 0 3 3 0 8 0 amappl11 160 10 0 9 1 0 1 1 0 8 0 amappl10 152 54 0 40 1 0 1 1 0 8 0 amappl9 144 252 0 252 1 1 0 1 0 8 0 amappl8 136 29 0 27 1 0 1 1 0 8 0 amappl7 128 81 0 80 1 0 1 1 0 8 0 amappl6 120 269 0 256 1 0 1 1 0 8 0 amappl5 112 142 0 130 1 0 1 1 0 8 0 amappl4 104 413 0 381 1 0 1 1 0 8 0 amappl3 96 3162 0 3057 4 1 3 3 0 8 0 amappl2 88 844 0 768 2 0 2 2 0 8 0 amappl1 80 10277 0 9686 15 2 13 15 0 8 0 amappl 88 5160 0 4976 5 0 5 5 0 92 0 uvmvnodes 80 112 0 0 3 0 3 3 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 736 0 704 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 736 0 704 1 0 1 1 0 8 0 vmmpekpl 168 7880 0 7843 3 0 3 3 0 8 0 vmmpepl 168 54607 0 52610 106 7 99 104 0 357 10 vmsppl 488 735 0 704 5 1 4 5 0 8 0 rwobjpl 80 18441 0 17367 32 4 28 30 0 8 1 pdppl 4096 1479 0 1408 97 26 71 85 0 8 0 pvpl 32 18238 0 0 149 1 148 148 0 265 0 pmappl 256 735 0 704 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 290 0 36 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838a1ff0) 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 end of kernel end trace frame: 0x795cbd660950, count: 12 ddb{0}> trace x86_ipi_db(ffffffff838a1ff0) 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 end of kernel end trace frame: 0x795cbd660950, count: -3 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(ffffffff834494f1) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_rename(ffff80003c43a038) at ufs_rename+0x175f sys/ufs/ufs/ufs_vnops.c:883 VOP_RENAME(fffffd806486f8c8,fffffd806486feb0,ffff80003c43a208,fffffd806486f8c8,fffffd806486fdd8,ffff80003c43a158) at VOP_RENAME+0x137 sys/kern/vfs_vops.c:376 dorenameat(ffff8000fffe87e8,ffffff9c,200000000080,ffffff9c,2000000000c0) at dorenameat+0x3f7 sys/kern/vfs_syscalls.c:3034 syscall(ffff80003c43a3a0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c43a3a0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x38353276e30, count: 8 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834494f1) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_rename(ffff80003c43a038) at ufs_rename+0x175f sys/ufs/ufs/ufs_vnops.c:883 VOP_RENAME(fffffd806486f8c8,fffffd806486feb0,ffff80003c43a208,fffffd806486f8c8,fffffd806486fdd8,ffff80003c43a158) at VOP_RENAME+0x137 sys/kern/vfs_vops.c:376 dorenameat(ffff8000fffe87e8,ffffff9c,200000000080,ffffff9c,2000000000c0) at dorenameat+0x3f7 sys/kern/vfs_syscalls.c:3034 syscall(ffff80003c43a3a0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c43a3a0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x38353276e30, count: -7