Warning: Permanently added '10.128.1.122' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program panic: ufs_rename: lost dir entry Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 96676 61019 0 0 0x4000000 0 syz-executor1813180494 db_enter() at db_enter+0x18 panic(ffffffff82738384) at panic+0x161 ufs_rename(ffff800021712878) at ufs_rename+0x1649 VOP_RENAME(fffffd807efd0438,fffffd806c4d55f8,ffff800021712a48,fffffd806c4d50e8,fffffd806c4d5e68,ffff800021712998) at VOP_RENAME+0xf0 dorenameat(ffff8000ffff0590,3,20000180,5,200001c0) at dorenameat+0x29c syscall(ffff800021712be0) at syscall+0x4e6 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x50e3a524f00, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: ufs_rename: lost dir entry ddb> trace db_enter() at db_enter+0x18 panic(ffffffff82738384) at panic+0x161 ufs_rename(ffff800021712878) at ufs_rename+0x1649 VOP_RENAME(fffffd807efd0438,fffffd806c4d55f8,ffff800021712a48,fffffd806c4d50e8,fffffd806c4d5e68,ffff800021712998) at VOP_RENAME+0xf0 dorenameat(ffff8000ffff0590,3,20000180,5,200001c0) at dorenameat+0x29c syscall(ffff800021712be0) at syscall+0x4e6 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x50e3a524f00, count: -7 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff800021712610 rbx 0xfffffd806c4d5880 rdx 0x3fd rcx 0 rax 0x22 r8 0x101010101010101 r9 0x8080808080808080 r10 0x4fc827db2164cdc7 r11 0x3c885a8e6457cbbe r12 0 r13 0xfffffd806c4d4008 r14 0 r15 0x1 rip 0xffffffff81817ba8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021712600 ss 0 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor1813180494) pid=96676 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff0b00,0xffff8000ffff02e8 process=0xffff8000fffeefc0 user=0xffff80002170d000, vmspace=0xfffffd806c903560 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 33743 26177 81376 0 2 0 syz-executor1813180494 66850 235119 71948 0 2 0 syz-executor1813180494 59845 328275 33721 0 2 0 syz-executor1813180494 59845 173909 33721 0 3 0x4000080 fsleep syz-executor1813180494 56195 26879 14533 0 2 0 syz-executor1813180494 79582 420329 96339 0 2 0 syz-executor1813180494 79582 309641 96339 0 3 0x4000080 fsleep syz-executor1813180494 47477 209193 89927 0 2 0 syz-executor1813180494 47477 457406 89927 0 2 0x4000000 syz-executor1813180494 47477 522293 89927 0 2 0x4000000 syz-executor1813180494 47477 282460 89927 0 2 0x4000000 syz-executor1813180494 423 295976 74445 0 2 0 syz-executor1813180494 423 447459 74445 0 3 0x4000080 fsleep syz-executor1813180494 423 358648 74445 0 2 0x4000000 syz-executor1813180494 423 232027 74445 0 2 0x4000000 syz-executor1813180494 61019 35464 68864 0 2 0 syz-executor1813180494 61019 518023 68864 0 2 0x4000000 syz-executor1813180494 61019 136225 68864 0 3 0x4000080 fsleep syz-executor1813180494 *61019 96676 68864 0 7 0x4000000 syz-executor1813180494 14533 314382 28426 0 3 0x80 nanoslp syz-executor1813180494 71948 83383 28426 0 3 0x80 nanoslp syz-executor1813180494 96339 466127 28426 0 3 0x80 nanoslp syz-executor1813180494 33721 446963 28426 0 3 0x80 nanoslp syz-executor1813180494 81376 452394 28426 0 3 0x80 nanoslp syz-executor1813180494 89927 183708 28426 0 3 0x80 nanoslp syz-executor1813180494 74445 425330 28426 0 3 0x80 nanoslp syz-executor1813180494 68864 382823 28426 0 3 0x80 nanoslp syz-executor1813180494 28426 145762 18903 0 3 0x82 nanoslp syz-executor1813180494 18903 404125 84857 0 3 0x10008a sigsusp ksh 84857 309726 41481 0 2 0x12 sshd 4516 33854 1 0 3 0x100083 ttyin getty 41481 243022 1 0 3 0x88 kqread sshd 73908 498552 22333 73 3 0x1100090 kqread syslogd 22333 270782 1 0 3 0x100082 netio syslogd 89869 392577 1 0 3 0x100080 kqread resolvd 26270 71882 53981 77 3 0x100092 kqread dhcpleased 90479 93697 53981 77 3 0x100092 kqread dhcpleased 53981 390113 1 0 3 0x80 kqread dhcpleased 73568 470899 0 0 3 0x14200 bored smr 47966 508000 0 0 2 0x14200 zerothread 43868 242586 0 0 3 0x14200 aiodoned aiodoned 75877 312996 0 0 3 0x14200 syncer update 6619 228218 0 0 3 0x14200 cleaner cleaner 87011 355308 0 0 3 0x14200 reaper reaper 90412 228028 0 0 3 0x14200 pgdaemon pagedaemon 57709 143897 0 0 3 0x14200 bored viomb 19493 30063 0 0 3 0x40014200 acpi0 acpi0 46901 358132 0 0 3 0x14200 bored softnet 14796 118981 0 0 3 0x14200 bored softnet 46857 66642 0 0 3 0x14200 bored softnet 17067 511649 0 0 3 0x14200 bored softnet 5898 294632 0 0 3 0x14200 bored systqmp 20384 269323 0 0 3 0x14200 bored systq 6725 513779 0 0 3 0x40014200 bored softclock 13224 102922 0 0 3 0x40014200 idle0 1 170905 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10155 6383K 6414K 78643K 11245 0 pcb 13 8K 8K 78643K 13 0 rtable 58 1K 2K 78643K 109 0 ifaddr 23 11K 11K 78643K 23 0 counters 20 16K 16K 78643K 20 0 ioctlops 0 0K 2K 78643K 19 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1167 73K 73K 78643K 1180 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 0K 0K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 1 0K 0K 78643K 1 0 proc 55 58K 59K 78643K 239 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 1K 78643K 241 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 8 62K 64K 78643K 10 0 UVM amap 135 6K 6K 78643K 1570 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 3 0K 0K 78643K 3 0 temp 18 5753K 5817K 78643K 2688 0 kqueue 11 16K 18K 78643K 24 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 20 0 17 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 144 33 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 2 1 1 1 0 8 1 tcpqe 32 127 0 127 1 1 0 1 0 8 0 tcpcb 776 8 0 5 1 0 1 1 0 8 0 arp 88 2 0 0 1 0 1 1 0 8 0 inpcb 336 25 0 19 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 97 0 0 7 0 7 7 0 8 0 art_table 32 98 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1451 0 54 88 0 88 88 0 8 0 ffsino 240 1451 0 54 83 0 83 83 0 8 0 nchpl 144 1679 0 123 59 0 59 59 0 8 0 uvmvnodes 80 1460 0 0 30 0 30 30 0 8 0 vnodes 216 1460 0 0 82 0 82 82 0 8 0 namei 1024 4720 0 4716 4 1 3 3 0 8 1 kstatmem 264 6 0 0 1 0 1 1 0 8 0 scxspl 216 5025 0 5025 10 9 1 8 0 8 1 plimitpl 152 16 0 10 1 0 1 1 0 8 0 sigapl 424 329 0 284 6 0 6 6 0 8 0 futexpl 64 75 0 71 1 0 1 1 0 8 0 knotepl 120 4474 0 4444 3 1 2 2 0 8 1 kqueuepl 184 20 0 13 1 0 1 1 0 8 0 pipepl 288 83 0 80 2 1 1 1 0 8 0 fdescpl 432 313 0 284 4 0 4 4 0 8 0 filepl 120 1162 0 1099 3 0 3 3 0 8 1 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 17 0 9 1 0 1 1 0 8 0 pgrppl 48 17 0 9 1 0 1 1 0 8 0 ucredpl 104 66 0 56 1 0 1 1 0 8 0 zombiepl 144 284 0 284 2 1 1 1 0 8 1 processpl 1008 329 0 284 7 1 6 6 0 8 0 procpl 696 361 0 305 7 1 6 6 0 8 0 sockpl 456 78 0 56 4 1 3 4 0 8 0 mcl8k 8192 9 0 9 2 1 1 1 0 8 1 mcl4k 4096 5 0 5 2 1 1 1 0 8 1 mcl2k 2048 11142 0 11088 34 22 12 31 0 8 4 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 18505 0 18408 19 9 10 19 0 8 2 bufpl 288 2425 0 88 167 0 167 167 0 8 0 anonpl 24 99941 0 96846 33 13 20 24 0 188 1 amapchunkpl 152 4587 0 4376 10 1 9 9 0 158 0 amappl16 200 1925 0 1905 7 5 2 5 0 8 0 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 91 0 82 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 299 0 298 2 1 1 1 0 8 0 amappl11 160 48 0 38 1 0 1 1 0 8 0 amappl10 152 13 0 13 1 1 0 1 0 8 0 amappl9 144 958 0 958 2 1 1 1 0 8 1 amappl8 136 19 0 18 2 1 1 1 0 8 0 amappl7 128 107 0 80 1 0 1 1 0 8 0 amappl6 120 80 0 73 1 0 1 1 0 8 0 amappl5 112 69 0 63 1 0 1 1 0 8 0 amappl4 104 355 0 334 1 0 1 1 0 8 0 amappl3 96 470 0 416 2 0 2 2 0 8 0 amappl2 88 489 0 441 2 0 2 2 0 8 0 amappl1 80 9478 0 8825 16 2 14 14 0 8 0 amappl 88 1269 0 1184 2 0 2 2 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 313 0 284 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 313 0 284 1 0 1 1 0 8 0 vmmpekpl 168 6910 0 6896 1 0 1 1 0 8 0 vmmpepl 168 31029 0 29274 84 7 77 77 0 357 0 vmsppl 272 312 0 284 3 1 2 2 0 8 0 rwobjpl 24 12817 0 10544 15 1 14 14 0 8 0 pdppl 4096 632 0 568 86 22 64 64 0 8 0 pvpl 32 188487 0 182251 70 19 51 52 0 265 0 pmappl 216 312 0 284 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 505 0 60 13 0 13 13 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x18 panic(ffffffff82738384) at panic+0x161 ufs_rename(ffff800021712878) at ufs_rename+0x1649 VOP_RENAME(fffffd807efd0438,fffffd806c4d55f8,ffff800021712a48,fffffd806c4d50e8,fffffd806c4d5e68,ffff800021712998) at VOP_RENAME+0xf0 dorenameat(ffff8000ffff0590,3,20000180,5,200001c0) at dorenameat+0x29c syscall(ffff800021712be0) at syscall+0x4e6 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x50e3a524f00, count: -7 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x18 panic(ffffffff82738384) at panic+0x161 ufs_rename(ffff800021712878) at ufs_rename+0x1649 VOP_RENAME(fffffd807efd0438,fffffd806c4d55f8,ffff800021712a48,fffffd806c4d50e8,fffffd806c4d5e68,ffff800021712998) at VOP_RENAME+0xf0 dorenameat(ffff8000ffff0590,3,20000180,5,200001c0) at dorenameat+0x29c syscall(ffff800021712be0) at syscall+0x4e6 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x50e3a524f00, count: -7 ddb>