Warning: Permanently added '10.128.0.233' (ED25519) to the list of known hosts. 2026/07/30 03:20:17 ignoring optional flag "type"="gce" 2026/07/30 03:20:17 parsed 1 programs 2026/07/30 03:20:19 executed programs: 0 panic: ufs_rename: lost dir entry Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *103157 60920 0 0 0x4000000 1K syz-executor.4 db_enter() at db_enter+0x25 panic(ffffffff835594ca) at panic+0x1e5 ufs_rename(ffff80002a44e2f8) at ufs_rename+0x175f VOP_RENAME(fffffb007cccb878,fffffb007cccbd88,ffff80002a44e4c8,fffffb007cccba28,0,ffff80002a44e418) at VOP_RENAME+0x137 dorenameat(ffff80002a305a28,ffffff9c,200001c0,ffffff9c,20000200) at dorenameat+0x3f7 syscall(ffff80002a44e660) at syscall+0xb17 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84f7fb80d00, 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}> show kasan No such command ddb{1}> trace db_enter() at db_enter+0x25 panic(ffffffff835594ca) at panic+0x1e5 ufs_rename(ffff80002a44e2f8) at ufs_rename+0x175f VOP_RENAME(fffffb007cccb878,fffffb007cccbd88,ffff80002a44e4c8,fffffb007cccba28,0,ffff80002a44e418) at VOP_RENAME+0x137 dorenameat(ffff80002a305a28,ffffff9c,200001c0,ffffff9c,20000200) at dorenameat+0x3f7 syscall(ffff80002a44e660) at syscall+0xb17 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84f7fb80d00, count: -7 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a44e080 rbx 0xffff80002999ee07 rdx 0x3fd rcx 0 rax 0x22 r8 0x101010101010101 r9 0x8080808080808080 r10 0x68757d7155ba106e r11 0x7fba72be88ac0126 r12 0xffff80002999ec08 r13 0 r14 0 r15 0x1 rip 0xffffffff81593c65 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a44e070 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.4) tid=103157 pid=60920 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=83, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a307cb8,0xffff80002a305cd0 process=0xffff80002a30ab70 user=0xffff80002a449000, vmspace=0xfffffb006beeb9b0 estcpu=33, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 98370 336388 76601 0 2 0 0 syz-executor.1 98370 445392 76601 0 3 0 0x4000000 biowait syz-executor.1 76537 372546 33234 0 2 0x100002 0 sh 43544 451286 22027 0 2 0 0 syz-executor.2 43544 4118 22027 0 3 0 0x4000080 fsleep syz-executor.2 60920 452009 91079 0 2 0 0 syz-executor.4 60920 224642 91079 0 2 0 0x4000000 syz-executor.4 60920 191186 91079 0 2 0 0x4000000 syz-executor.4 *60920 103157 91079 0 7 0 0x4000000 syz-executor.4 58212 112477 15960 0 2 0x2 0 ifconfig 39564 213063 90920 0 2 0 0 syz-executor.3 39564 109920 90920 0 2 0 0x4000000 syz-executor.3 39564 468541 90920 0 2 0 0x4000000 syz-executor.3 39564 332908 90920 0 3 0 0x4000000 inode syz-executor.3 15960 352105 94838 0 3 0x100002 0x88 sigsusp sh 76601 385117 83775 0 3 0x2 0x80 nanoslp syz-executor.1 39187 104980 83775 0 3 0x2 0x80 wait syz-executor.7 94567 100797 19878 0 3 0x100002 0x80 sbwait arp 19878 175638 21687 0 3 0x100002 0x88 sigsusp sh 22027 493506 83775 0 3 0x2 0x80 nanoslp syz-executor.2 33234 170578 83775 0 3 0x2 0x80 wait syz-executor.5 91079 373847 83775 0 3 0x2 0x80 nanoslp syz-executor.4 90920 215117 83775 0 3 0x2 0x80 nanoslp syz-executor.3 94838 289123 83775 0 3 0x2 0x80 wait syz-executor.6 21687 25529 83775 0 3 0x2 0x80 wait syz-executor.0 83775 71692 15611 0 3 0x2 0x80 thrsleep syz-execprog 83775 235048 15611 0 3 0x2 0x4000080 thrsleep syz-execprog 83775 113479 15611 0 3 0x2 0x4000080 thrsleep syz-execprog 83775 408589 15611 0 3 0x2 0x4000080 kqread syz-execprog 83775 366835 15611 0 3 0x2 0x4000080 wait syz-execprog 83775 286535 15611 0 3 0x2 0x4000080 wait syz-execprog 83775 362232 15611 0 3 0x2 0x4000080 wait syz-execprog 83775 486464 15611 0 3 0x2 0x4000080 wait syz-execprog 83775 316972 15611 0 3 0x2 0x4000080 wait syz-execprog 83775 123650 15611 0 3 0x2 0x4000080 wait syz-execprog 83775 145690 15611 0 3 0x2 0x4000080 thrsleep syz-execprog 83775 358946 15611 0 3 0x2 0x4000080 wait syz-execprog 83775 144294 15611 0 3 0x2 0x4000080 wait syz-execprog 83775 217404 15611 0 3 0x2 0x4000080 thrsleep syz-execprog 15611 474245 97150 0 3 0x100002 0x88 sigsusp ksh 97150 261320 86405 0 3 0x10 0x88 kqread sshd-session 86405 16330 28619 0 3 0x12 0x80 kqread sshd-session 59189 287394 1 0 3 0x100003 0x80 ttyin getty 28619 42289 1 0 3 0 0x88 kqread sshd 37635 84411 41915 74 3 0x1100012 0x80 bpf pflogd 41915 205753 1 0 3 0 0x80 sbwait pflogd 48855 11984 1088 73 3 0x1100010 0x80 kqread syslogd 1088 228814 1 0 3 0x100002 0x80 sbwait syslogd 87241 320422 1 0 3 0x100000 0x80 kqread resolvd 10845 45788 20999 77 3 0x100012 0x80 kqread dhcpleased 69387 503678 20999 77 3 0x100012 0x80 kqread dhcpleased 20999 493600 1 0 3 0 0x80 kqread dhcpleased 55772 364189 0 0 3 0x14000 0x200 bored smr 73560 143204 0 0 3 0x14000 0x200 pgzero zerothread 6548 52256 0 0 3 0x14000 0x200 aiodoned aiodoned 3507 420400 0 0 3 0x14000 0x200 syncer update 28766 79928 0 0 3 0x14000 0x200 cleaner cleaner 46688 336977 0 0 3 0x14000 0x200 reaper reaper 62343 158148 0 0 3 0x14000 0x200 pgdaemon pagedaemon 62483 451742 0 0 3 0x14000 0x200 bored viomb 90645 8745 0 0 3 0x14000 0x40000200 acpi0 acpi0 36289 190977 0 0 3 0x14000 0x40000200 idle1 84997 250993 0 0 3 0x14000 0x200 bored softnet1 51925 481902 0 0 3 0x14000 0x200 bored softnet0 33863 246688 0 0 3 0x14000 0x200 smrbar systqmp 16698 107774 0 0 3 0x14000 0x200 bored systq 78600 29744 0 0 3 0x14000 0x200 tmoslp softclockmp 28019 483042 0 0 3 0x14000 0x40000200 tmoslp softclock 59592 303731 0 0 3 0x14000 0x40000200 idle0 1 515710 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff83ab2988) #0 witness_lock+0x5f1 #1 mtx_enter+0x4b4 #2 uvm_pmr_freepages+0x1b6 #3 uvm_anfree+0xe9 #4 amap_wipeout+0x1d6 #5 uvm_unmap_detach+0x8a #6 uvm_map_teardown+0x360 #7 exit1+0x71b #8 sys_exit+0x1a #9 syscall+0xb17 #10 Xsyscall+0x128 Process 98370 (syz-executor.1) thread 0xffff80002a307cb8 (445392) exclusive rrwlock inode r = 0 (0xfffffb006b8a2a18) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 ufs_ihashins+0x4f #5 ffs_vget+0x187 #6 ffs_inode_alloc+0x279 #7 ufs_mkdir+0xfc #8 VOP_MKDIR+0x101 #9 domkdirat+0x179 #10 syscall+0xb17 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffb006830eea8) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vget+0x2a2 #6 ufs_ihashget+0x185 #7 ffs_vget+0x8c #8 ufs_lookup+0x16bd #9 VOP_LOOKUP+0x6e #10 vfs_lookup+0x963 #11 namei+0x7c5 #12 domkdirat+0x8b #13 syscall+0xb17 #14 Xsyscall+0x128 Process 60920 (syz-executor.4) thread 0xffff80002a305a28 (103157) exclusive rrwlock inode r = 0 (0xfffffb006b8a2eb8) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vget+0x2a2 #6 ufs_ihashget+0x185 #7 ffs_vget+0x8c #8 ufs_lookup+0x1a36 #9 VOP_LOOKUP+0x6e #10 vfs_relookup+0xd4 #11 ufs_rename+0x14aa #12 VOP_RENAME+0x137 #13 dorenameat+0x3f7 #14 syscall+0xb17 #15 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a9e280) #0 witness_lock+0x5f1 #1 __mp_acquire_count+0x58 #2 sleep_finish+0x2d8 #3 rw_do_enter_write+0x1dc #4 rrw_enter+0xc6 #5 VOP_LOCK+0xbd #6 vn_lock+0xa4 #7 vget+0x2a2 #8 ufs_ihashget+0x185 #9 ffs_vget+0x8c #10 ufs_lookup+0x1a36 #11 VOP_LOOKUP+0x6e #12 vfs_relookup+0xd4 #13 ufs_rename+0x14aa #14 VOP_RENAME+0x137 #15 dorenameat+0x3f7 #16 syscall+0xb17 #17 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffb007ccee320) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vfs_relookup+0x5c #6 ufs_rename+0x14aa #7 VOP_RENAME+0x137 #8 dorenameat+0x3f7 #9 syscall+0xb17 #10 Xsyscall+0x128 Process 39564 (syz-executor.3) thread 0xffff800045fee7f0 (468541) exclusive rrwlock inode r = 0 (0xfffffb007cceeeb0) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vfs_lookup+0x12b #6 namei+0x7c5 #7 dorenameat+0x91 #8 syscall+0xb17 #9 Xsyscall+0x128 Process 33863 (systqmp) thread 0xffff800045ffe530 (246688) shared rwlock systqmp r = 0 (0xffffffff839508c8) #0 witness_lock+0x5f1 #1 taskq_thread+0x12a #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11050 12084K 12084K 166960K 12144 0 pcb 17 12K 12K 166960K 17 0 rtable 197 5K 5K 166960K 329 0 pf 34 17K 18K 166960K 48 0 ifaddr 38 6K 6K 166960K 44 0 ifgroup 55 2K 2K 166960K 60 0 sysctl 1 1K 9K 166960K 5 0 counters 70 37K 37K 166960K 72 0 ioctlops 0 0K 4K 166960K 1482 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1217 77K 77K 166960K 1285 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 19 69K 85K 166960K 148 0 proc 69 115K 147K 166960K 558 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 78 5K 5K 166960K 89 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 471 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 280 166K 216K 166960K 4612 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 46 92K 112K 166960K 1723 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 24 1K 1K 166960K 27 0 temp 1 9112K 9120K 166960K 5289 0 kqueue 13 20K 20K 166960K 64 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 28 0 0 1 0 1 1 0 8 0 rtpcb 120 34 0 30 1 0 1 1 0 8 0 rtentry 176 102 0 12 6 1 5 5 0 8 0 unpcb 144 105 0 88 1 0 1 1 0 8 0 syncache 336 15 0 15 1 0 1 1 0 8 1 tcpcb 736 18 0 15 1 0 1 1 0 8 0 arp 136 17 0 2 1 0 1 1 0 8 0 inpcb 328 76 0 70 1 0 1 1 0 8 0 nd6 152 20 0 3 2 1 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 pfstitem 24 25 0 2 1 0 1 1 0 8 0 pfstkey 128 25 0 2 1 0 1 1 0 8 0 pfstate 448 25 0 2 3 0 3 3 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 414 0 48 26 3 23 23 0 8 0 art_table 40 415 0 48 5 1 4 4 0 8 0 art_node 32 102 0 18 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1665 0 168 94 0 94 94 0 8 0 ffsino 296 1665 0 168 116 0 116 116 0 8 0 nchpl 144 1988 0 190 67 0 67 67 0 8 0 vnodes 216 1679 0 0 94 0 94 94 0 8 0 namei 1024 8793 0 8786 3 1 2 2 0 8 0 percpumem 16 52 0 1 1 0 1 1 0 8 0 kstatmem 264 29 0 2 2 0 2 2 0 8 0 scxspl 216 10033 0 10032 11 4 7 8 1 8 6 plimitpl 152 71 0 54 1 0 1 1 0 8 0 sigapl 424 557 0 507 8 2 6 6 0 8 0 knotepl 120 123 0 0 4 0 4 4 0 8 0 kqueuepl 224 60 0 51 1 0 1 1 0 8 0 pipepl 344 225 0 197 4 1 3 3 0 8 0 fdescpl 528 541 0 508 4 1 3 3 0 8 0 filepl 160 2536 0 2398 8 2 6 6 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 47 0 30 1 0 1 1 0 8 0 pgrppl 48 47 0 30 1 0 1 1 0 8 0 ucredpl 104 236 0 223 1 0 1 1 0 8 0 zombiepl 144 508 0 507 1 0 1 1 0 8 0 processpl 1232 557 0 507 6 1 5 5 0 8 0 procpl 664 594 0 523 8 2 6 6 0 8 0 sockpl 752 215 0 188 3 0 3 3 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 171 0 0 21 0 21 21 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mextrefs 64 23 0 0 1 0 1 1 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 204 0 0 12 0 12 12 0 8 0 bufpl 272 4715 0 179 303 0 303 303 0 8 0 anonpl 32 9968 0 0 81 0 81 81 0 247 0 amapchunkpl 152 13599 0 12973 35 6 29 31 0 158 0 amappl16 200 3527 0 3466 6 2 4 5 0 8 0 amappl15 192 15 0 15 2 2 0 1 0 8 0 amappl14 184 500 0 493 1 0 1 1 0 8 0 amappl13 176 281 0 267 3 1 2 2 0 8 1 amappl12 168 865 0 833 3 1 2 2 0 8 0 amappl11 160 32 0 32 2 2 0 1 0 8 0 amappl10 152 122 0 99 3 1 2 2 0 8 1 amappl9 144 1061 0 1060 2 1 1 1 0 8 0 amappl8 136 257 0 226 2 0 2 2 0 8 0 amappl7 128 289 0 267 4 2 2 3 0 8 0 amappl6 120 265 0 257 1 0 1 1 0 8 0 amappl5 112 203 0 193 1 0 1 1 0 8 0 amappl4 104 536 0 512 3 1 2 2 0 8 1 amappl3 96 1808 0 1702 5 2 3 3 0 8 0 amappl2 88 1281 0 1214 8 3 5 5 0 8 2 amappl1 80 25296 0 24640 35 13 22 24 0 8 7 amappl 88 3348 0 3170 8 3 5 5 0 92 0 uvmvnodes 80 118 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 541 0 508 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 541 0 508 1 0 1 1 0 8 0 vmmpekpl 168 14273 0 14225 3 0 3 3 0 8 0 vmmpepl 168 77359 0 75368 129 8 121 128 0 357 31 vmsppl 488 540 0 507 6 1 5 5 0 8 0 rwobjpl 80 31490 0 30290 56 20 36 40 0 8 8 pdppl 4096 1089 0 1014 129 48 81 81 0 8 6 pvpl 32 55600 0 0 450 1 449 449 0 265 0 pmappl 256 540 0 507 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 609 0 55 16 0 16 16 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83969ff0) at x86_ipi_db+0x27 x86_ipi_handler() at x86_ipi_handler+0xd9 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff83a9da80) at __mp_lock+0x199 exit1(ffff800045fef4e8,0,0,1) at exit1+0x720 sys_exit(ffff800045fef4e8,ffff80002a3c2d00,ffff80002a3c2c50) at sys_exit+0x1a syscall(ffff80002a3c2d00) at syscall+0xb17 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70fed42180f0, count: 7 ddb{0}> trace x86_ipi_db(ffffffff83969ff0) at x86_ipi_db+0x27 x86_ipi_handler() at x86_ipi_handler+0xd9 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff83a9da80) at __mp_lock+0x199 exit1(ffff800045fef4e8,0,0,1) at exit1+0x720 sys_exit(ffff800045fef4e8,ffff80002a3c2d00,ffff80002a3c2c50) at sys_exit+0x1a syscall(ffff80002a3c2d00) at syscall+0xb17 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70fed42180f0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 panic(ffffffff835594ca) at panic+0x1e5 ufs_rename(ffff80002a44e2f8) at ufs_rename+0x175f VOP_RENAME(fffffb007cccb878,fffffb007cccbd88,ffff80002a44e4c8,fffffb007cccba28,0,ffff80002a44e418) at VOP_RENAME+0x137 dorenameat(ffff80002a305a28,ffffff9c,200001c0,ffffff9c,20000200) at dorenameat+0x3f7 syscall(ffff80002a44e660) at syscall+0xb17 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84f7fb80d00, count: 8 ddb{1}> trace db_enter() at db_enter+0x25 panic(ffffffff835594ca) at panic+0x1e5 ufs_rename(ffff80002a44e2f8) at ufs_rename+0x175f VOP_RENAME(fffffb007cccb878,fffffb007cccbd88,ffff80002a44e4c8,fffffb007cccba28,0,ffff80002a44e418) at VOP_RENAME+0x137 dorenameat(ffff80002a305a28,ffffff9c,200001c0,ffffff9c,20000200) at dorenameat+0x3f7 syscall(ffff80002a44e660) at syscall+0xb17 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84f7fb80d00, count: -7