Warning: Permanently added '10.128.15.195' (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 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 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 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 *197090 51920 0 0 0x4000000 0 syz-executor3636140155 db_enter() at db_enter+0x18 panic(ffffffff82583a2a) at panic+0x161 ufs_rename(ffff80002178dbb8) at ufs_rename+0x1649 VOP_RENAME(fffffd807efd1510,fffffd806c624200,ffff80002178dd88,fffffd806c624560,fffffd806c624638,ffff80002178dcd8) at VOP_RENAME+0xf0 dorenameat(ffff80002172dce8,3,20000180,5,200001c0) at dorenameat+0x29c syscall(ffff80002178df20) at syscall+0x447 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xce67b0ee9f0, 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(ffffffff82583a2a) at panic+0x161 ufs_rename(ffff80002178dbb8) at ufs_rename+0x1649 VOP_RENAME(fffffd807efd1510,fffffd806c624200,ffff80002178dd88,fffffd806c624560,fffffd806c624638,ffff80002178dcd8) at VOP_RENAME+0xf0 dorenameat(ffff80002172dce8,3,20000180,5,200001c0) at dorenameat+0x29c syscall(ffff80002178df20) at syscall+0x447 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xce67b0ee9f0, count: -7 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80002178d950 rbx 0xfffffd806c624488 rdx 0x3fd rcx 0 rax 0x22 r8 0x101010101010101 r9 0x8080808080808080 r10 0x9d3b417f8854f634 r11 0x433e5a1d64851abe r12 0 r13 0xfffffd806c6441e8 r14 0 r15 0x1 rip 0xffffffff812e0e88 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002178d940 ss 0 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor3636140155) pid=197090 stat=onproc flags process=0 proc=4000000 pri=17, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80002172d268,0xffffffff82a4c868 process=0xffff80002172b7a0 user=0xffff800021788000, vmspace=0xfffffd806c893780 estcpu=5, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 8934 52213 53845 0 2 0 syz-executor3636140155 8934 199641 53845 0 3 0x4000080 fsleep syz-executor3636140155 51920 326968 95441 0 2 0 syz-executor3636140155 51920 132792 95441 0 3 0x4000080 fsleep syz-executor3636140155 *51920 197090 95441 0 7 0x4000000 syz-executor3636140155 16308 96678 47942 0 2 0 syz-executor3636140155 16308 427289 47942 0 3 0x4000080 fsleep syz-executor3636140155 5339 187544 30629 0 2 0 syz-executor3636140155 18892 199541 77953 0 2 0 syz-executor3636140155 18892 321417 77953 0 3 0x4000080 fsleep syz-executor3636140155 98452 91594 9828 0 2 0 syz-executor3636140155 98452 102698 9828 0 3 0x4000080 fsleep syz-executor3636140155 98452 356616 9828 0 2 0x4000000 syz-executor3636140155 95441 421513 22884 0 2 0x480 syz-executor3636140155 41828 257342 22884 0 2 0x480 syz-executor3636140155 53845 362122 22884 0 2 0x480 syz-executor3636140155 9828 129152 22884 0 2 0x480 syz-executor3636140155 77953 340154 22884 0 2 0x480 syz-executor3636140155 30629 97690 22884 0 2 0x480 syz-executor3636140155 92072 47262 22884 0 2 0 syz-executor3636140155 47942 497943 22884 0 3 0x80 nanoslp syz-executor3636140155 22884 215885 56399 0 3 0x82 nanoslp syz-executor3636140155 56399 81325 91982 0 3 0x10008a sigsusp ksh 91982 56422 52634 0 3 0x9a kqread sshd 94474 411801 1 0 3 0x100083 ttyin getty 52634 419490 1 0 3 0x88 kqread sshd 31079 8817 78314 73 3 0x1100090 kqread syslogd 78314 248492 1 0 3 0x100082 netio syslogd 22374 446009 1 0 3 0x100080 kqread resolvd 86779 420106 59108 77 3 0x100092 kqread dhcpleased 41599 96395 59108 77 3 0x100092 kqread dhcpleased 59108 250853 1 0 3 0x80 kqread dhcpleased 65347 269603 0 0 3 0x14200 bored smr 73615 423463 0 0 2 0x14200 zerothread 15482 324723 0 0 3 0x14200 aiodoned aiodoned 73973 241977 0 0 3 0x14200 syncer update 51292 446248 0 0 3 0x14200 cleaner cleaner 71371 103558 0 0 3 0x14200 reaper reaper 49944 413211 0 0 3 0x14200 pgdaemon pagedaemon 59976 27072 0 0 3 0x14200 bored viomb 65456 63026 0 0 3 0x40014200 acpi0 acpi0 14706 330046 0 0 3 0x14200 bored softnet 88341 372390 0 0 3 0x14200 bored softnet 8595 174987 0 0 3 0x14200 bored softnet 6244 15148 0 0 3 0x14200 bored softnet 34840 130008 0 0 3 0x14200 bored systqmp 33391 31455 0 0 3 0x14200 bored systq 97762 36971 0 0 3 0x40014200 bored softclock 40489 99382 0 0 3 0x40014200 idle0 1 213794 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 10143 6382K 6413K 78643K 11233 0 pcb 13 8K 8K 78643K 13 0 rtable 58 1K 2K 78643K 111 0 ifaddr 25 7K 7K 78643K 25 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 25 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1166 73K 73K 78643K 1179 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 226 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 2K 78643K 411 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 104 5K 6K 78643K 1636 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 4709K 4773K 78643K 2837 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 21 0 18 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 tcpcb 768 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 1588 0 189 88 0 88 88 0 8 0 ffsino 240 1588 0 189 83 0 83 83 0 8 0 nchpl 144 1975 0 425 59 0 59 59 0 8 0 uvmvnodes 80 1597 0 0 33 0 33 33 0 8 0 vnodes 216 1597 0 0 89 0 89 89 0 8 0 namei 1024 5106 0 5103 3 1 2 2 0 8 0 kstatmem 264 6 0 0 1 0 1 1 0 8 0 scxspl 216 5612 0 5612 10 9 1 8 0 8 1 plimitpl 152 15 0 9 1 0 1 1 0 8 0 sigapl 424 375 0 331 6 0 6 6 0 8 0 futexpl 64 529 0 524 1 0 1 1 0 8 0 knotepl 120 10868 0 10839 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 432 359 0 332 4 0 4 4 0 8 0 filepl 120 1384 0 1318 3 0 3 3 0 8 0 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 64 0 54 1 0 1 1 0 8 0 zombiepl 144 332 0 331 2 1 1 1 0 8 0 processpl 1000 375 0 331 7 1 6 6 0 8 0 procpl 672 478 0 427 5 0 5 5 0 8 0 sockpl 456 79 0 57 3 0 3 3 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 10888 0 10849 8 1 7 7 0 8 1 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 19574 0 19492 7 0 7 7 0 8 0 bufpl 288 2540 0 80 176 0 176 176 0 8 0 anonpl 24 48023 0 44962 23 3 20 20 0 188 0 amapchunkpl 152 3472 0 3278 10 1 9 9 0 158 0 amappl16 200 102 0 80 2 0 2 2 0 8 0 amappl15 192 68 0 61 1 0 1 1 0 8 0 amappl13 176 33 0 32 2 1 1 1 0 8 0 amappl12 168 6 0 5 1 0 1 1 0 8 0 amappl11 160 38 0 28 1 0 1 1 0 8 0 amappl10 152 2 0 2 2 1 1 1 0 8 1 amappl9 144 939 0 939 2 1 1 1 0 8 1 amappl8 136 383 0 370 1 0 1 1 0 8 0 amappl7 128 64 0 57 1 0 1 1 0 8 0 amappl6 120 108 0 95 1 0 1 1 0 8 0 amappl5 112 83 0 76 1 0 1 1 0 8 0 amappl4 104 635 0 611 1 0 1 1 0 8 0 amappl3 96 627 0 578 2 0 2 2 0 8 0 amappl2 88 338 0 296 3 1 2 2 0 8 1 amappl1 80 10782 0 10154 17 3 14 14 0 8 0 amappl 88 1349 0 1273 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 24 359 0 332 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 359 0 332 1 0 1 1 0 8 0 vmmpekpl 168 7129 0 7115 1 0 1 1 0 8 0 vmmpepl 168 32101 0 30509 81 5 76 76 0 357 0 vmsppl 272 358 0 332 3 1 2 2 0 8 0 rwobjpl 24 11520 0 9145 15 0 15 15 0 8 0 pdppl 4096 724 0 664 90 26 64 64 0 8 4 pvpl 32 140480 0 134442 59 7 52 52 0 265 0 pmappl 216 358 0 332 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 479 0 34 13 0 13 13 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x18 panic(ffffffff82583a2a) at panic+0x161 ufs_rename(ffff80002178dbb8) at ufs_rename+0x1649 VOP_RENAME(fffffd807efd1510,fffffd806c624200,ffff80002178dd88,fffffd806c624560,fffffd806c624638,ffff80002178dcd8) at VOP_RENAME+0xf0 dorenameat(ffff80002172dce8,3,20000180,5,200001c0) at dorenameat+0x29c syscall(ffff80002178df20) at syscall+0x447 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xce67b0ee9f0, count: -7 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x18 panic(ffffffff82583a2a) at panic+0x161 ufs_rename(ffff80002178dbb8) at ufs_rename+0x1649 VOP_RENAME(fffffd807efd1510,fffffd806c624200,ffff80002178dd88,fffffd806c624560,fffffd806c624638,ffff80002178dcd8) at VOP_RENAME+0xf0 dorenameat(ffff80002172dce8,3,20000180,5,200001c0) at dorenameat+0x29c syscall(ffff80002178df20) at syscall+0x447 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xce67b0ee9f0, count: -7 ddb>