Warning: Permanently added '10.128.1.211' (ED25519) to the list of known hosts. 2026/03/25 00:57:06 ignoring optional flag "type"="gce" 2026/03/25 00:57:06 parsed 1 programs 2026/03/25 00:57:07 executed programs: 0 panic: ufsdirhash_lookup: bad offset in hash array Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 23742 90373 0 0 0x4000000 0 syz-executor.0 db_enter() at db_enter+0x25 panic(ffffffff8343e7a5) at panic+0x1cf ufsdirhash_lookup(fffffd806996b400,ffff80002a82cc00,1,fffffd806996b4bc,ffff80002a7d10b0,ffff80002a7d10bc) at ufsdirhash_lookup+0xb9a ufs_lookup() at ufs_lookup+0xf66 VOP_LOOKUP(fffffd80698cda68,ffff80002a7d1408,ffff80002a7d1438) at VOP_LOOKUP+0x6e vfs_lookup(ffff80002a7d13d8) at vfs_lookup+0x961 namei(ffff80002a7d13d8) at namei+0x7ca dorenameat(ffff80002a801770,4,200000c0,3,0) at dorenameat+0x91 syscall(ffff80002a7d15c0) at syscall+0x962 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3a204c74000, count: 5 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: ufsdirhash_lookup: bad offset in hash array ddb> trace db_enter() at db_enter+0x25 panic(ffffffff8343e7a5) at panic+0x1cf ufsdirhash_lookup(fffffd806996b400,ffff80002a82cc00,1,fffffd806996b4bc,ffff80002a7d10b0,ffff80002a7d10bc) at ufsdirhash_lookup+0xb9a ufs_lookup() at ufs_lookup+0xf66 VOP_LOOKUP(fffffd80698cda68,ffff80002a7d1408,ffff80002a7d1438) at VOP_LOOKUP+0x6e vfs_lookup(ffff80002a7d13d8) at vfs_lookup+0x961 namei(ffff80002a7d13d8) at namei+0x7ca dorenameat(ffff80002a801770,4,200000c0,3,0) at dorenameat+0x91 syscall(ffff80002a7d15c0) at syscall+0x962 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3a204c74000, count: -10 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80002a7d0ee0 rbx 0xffff800000c55910 rdx 0x3fd rcx 0 rax 0x33 r8 0x101010101010101 r9 0x8080808080808080 r10 0x44a1db2c5b46cdb8 r11 0xf7e21df372b98e0a r12 0 r13 0xffff8000015af800 r14 0 r15 0x1 rip 0xffffffff8244cc75 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a7d0ed0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC (syz-executor.0) tid=23742 pid=90373 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a8002b0,0xffffffff8397b910 process=0xffff80002a7af190 user=0xffff80002a7cc000, vmspace=0xfffffd807ece02e0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 90373 506709 92600 0 2 0 syz-executor.0 *90373 23742 92600 0 7 0x4000000 syz-executor.0 92600 132748 62804 0 2 0xc82 syz-executor.0 62804 108837 9402 0 3 0x82 thrsleep syz-execprog 62804 469140 9402 0 3 0x4000082 thrsleep syz-execprog 62804 129894 9402 0 3 0x4000082 wait syz-execprog 62804 9327 9402 0 3 0x4000082 thrsleep syz-execprog 62804 232699 9402 0 3 0x4000082 thrsleep syz-execprog 62804 518695 9402 0 3 0x4000082 thrsleep syz-execprog 62804 344219 9402 0 3 0x4000082 kqread syz-execprog 62804 458747 9402 0 3 0x4000082 thrsleep syz-execprog 62804 57963 9402 0 3 0x4000082 thrsleep syz-execprog 62804 253704 9402 0 3 0x4000082 thrsleep syz-execprog 9402 267237 20736 0 3 0x10008a sigsusp ksh 20736 88797 74837 0 3 0x98 kqread sshd-session 74837 36826 7227 0 3 0x92 kqread sshd-session 2077 16930 1 0 3 0x100083 ttyin getty 7227 425345 1 0 3 0x88 kqread sshd 81523 86283 31598 73 3 0x1100090 kqread syslogd 31598 522976 1 0 3 0x100082 sbwait syslogd 36368 491174 1 0 3 0x100080 kqread resolvd 3244 48054 14842 77 3 0x100092 kqread dhcpleased 73696 329272 14842 77 3 0x100092 kqread dhcpleased 14842 216774 1 0 3 0x80 kqread dhcpleased 46885 450481 0 0 3 0x14200 bored smr 38529 204015 0 0 2 0x14200 zerothread 84099 412811 0 0 3 0x14200 aiodoned aiodoned 43889 360346 0 0 3 0x14200 syncer update 59572 332445 0 0 3 0x14200 cleaner cleaner 57539 6620 0 0 3 0x14200 reaper reaper 15418 163838 0 0 3 0x14200 pgdaemon pagedaemon 67568 296410 0 0 3 0x14200 bored viomb 54301 338566 0 0 3 0x40014200 acpi0 acpi0 13171 123208 0 0 3 0x14200 bored softnet0 40378 218543 0 0 3 0x14200 smrbar systqmp 72221 447065 0 0 3 0x14200 bored systq 73723 475061 0 0 3 0x40014200 tmoslp softclock 6519 455935 0 0 3 0x40014200 idle0 1 390736 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 11006 12086K 12119K 166960K 12093 0 pcb 17 12K 12K 166960K 17 0 rtable 83 2K 2K 166960K 173 0 pf 16 10K 10K 166960K 19 0 ifaddr 14 2K 2K 166960K 18 0 ifgroup 22 1K 1K 166960K 27 0 sysctl 1 1K 9K 166960K 5 0 counters 26 16K 16K 166960K 27 0 ioctlops 0 0K 2K 166960K 23 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1215 76K 77K 166960K 1280 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 21 3K 3K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 3 8K 13K 166960K 37 0 proc 57 58K 67K 166960K 327 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 22 1K 1K 166960K 33 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 341 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 168 93K 208K 166960K 3799 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 26 52K 104K 166960K 1258 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 6 0K 0K 166960K 9 0 temp 1 9060K 9124K 166960K 4117 0 kqueue 13 20K 20K 166960K 46 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 24 0 21 1 0 1 1 0 8 0 rtentry 136 45 0 12 2 0 2 2 0 8 0 unpcb 144 67 0 52 1 0 1 1 0 8 0 syncache 336 9 0 9 1 0 1 1 0 8 1 tcpcb 736 12 0 9 1 0 1 1 0 8 0 arp 96 6 0 2 1 0 1 1 0 8 0 inpcb 328 38 0 32 1 0 1 1 0 8 0 nd6 112 6 0 3 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 193 0 48 10 0 10 10 0 8 0 art_table 40 194 0 48 2 0 2 2 0 8 0 art_node 32 45 0 14 1 0 1 1 0 8 0 dirhash 1024 20 0 0 3 0 3 3 0 8 0 dino2pl 256 1574 0 127 91 0 91 91 0 8 0 ffsino 256 1574 0 127 91 0 91 91 0 8 0 nchpl 144 1834 0 107 65 0 65 65 0 8 0 vnodes 216 1583 0 0 88 0 88 88 0 8 0 namei 1024 6389 0 6388 3 0 3 3 0 8 2 kstatmem 264 10 0 2 1 0 1 1 0 8 0 scxspl 216 9441 0 9441 8 0 8 8 1 8 8 plimitpl 152 51 0 42 1 0 1 1 0 8 0 sigapl 424 408 0 379 5 0 5 5 0 8 1 knotepl 120 7508 0 7471 2 0 2 2 0 8 0 kqueuepl 184 42 0 33 1 0 1 1 0 8 0 pipepl 304 166 0 159 1 0 1 1 0 8 0 fdescpl 448 395 0 379 4 0 4 4 0 8 2 filepl 120 1916 0 1845 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 27 0 18 1 0 1 1 0 8 0 pgrppl 48 27 0 18 1 0 1 1 0 8 0 ucredpl 104 147 0 136 1 0 1 1 0 8 0 zombiepl 144 379 0 379 1 0 1 1 0 8 1 processpl 1152 408 0 379 3 0 3 3 0 8 0 procpl 664 429 0 390 5 0 5 5 0 8 1 sockpl 552 129 0 105 2 0 2 2 0 8 0 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 10167 0 10111 22 7 15 22 0 8 7 mcl2k 2048 91 0 91 1 0 1 1 0 8 1 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 13565 0 13495 12 0 12 12 0 8 7 bufpl 280 4648 0 176 320 0 320 320 0 8 0 anonpl 24 207726 0 204320 59 0 59 59 0 187 27 amapchunkpl 152 11971 0 11612 29 0 29 29 0 158 11 amappl16 200 4396 0 4316 6 0 6 6 0 8 1 amappl15 192 31 0 29 1 0 1 1 0 8 0 amappl14 184 386 0 384 1 0 1 1 0 8 0 amappl13 176 251 0 239 2 0 2 2 0 8 0 amappl12 168 647 0 630 2 0 2 2 0 8 1 amappl11 160 10 0 10 1 0 1 1 0 8 1 amappl10 152 114 0 103 1 0 1 1 0 8 0 amappl9 144 1081 0 1081 1 0 1 1 0 8 1 amappl8 136 235 0 217 1 0 1 1 0 8 0 amappl7 128 284 0 269 2 0 2 2 0 8 0 amappl6 120 169 0 167 1 0 1 1 0 8 0 amappl5 112 172 0 164 1 0 1 1 0 8 0 amappl4 104 483 0 463 2 0 2 2 0 8 1 amappl3 96 1385 0 1336 2 0 2 2 0 8 0 amappl2 88 1032 0 975 5 0 5 5 0 8 1 amappl1 80 17038 0 16533 25 7 18 23 0 8 7 amappl 88 2776 0 2684 5 0 5 5 0 92 2 uvmvnodes 80 87 0 0 2 0 2 2 0 8 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 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 24 395 0 379 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 395 0 379 1 0 1 1 0 8 0 vmmpekpl 168 11479 0 11454 2 0 2 2 0 8 0 vmmpepl 168 59765 0 58425 122 0 122 122 0 357 57 vmsppl 368 394 0 379 3 0 3 3 0 8 1 rwobjpl 40 24902 0 24026 19 0 19 19 0 8 4 pdppl 4096 796 0 758 96 42 54 62 0 8 16 pvpl 32 560297 0 552038 446 152 294 446 0 265 211 pmappl 216 394 0 379 2 0 2 2 0 8 1 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 343 0 49 9 0 9 9 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x25 panic(ffffffff8343e7a5) at panic+0x1cf ufsdirhash_lookup(fffffd806996b400,ffff80002a82cc00,1,fffffd806996b4bc,ffff80002a7d10b0,ffff80002a7d10bc) at ufsdirhash_lookup+0xb9a ufs_lookup() at ufs_lookup+0xf66 VOP_LOOKUP(fffffd80698cda68,ffff80002a7d1408,ffff80002a7d1438) at VOP_LOOKUP+0x6e vfs_lookup(ffff80002a7d13d8) at vfs_lookup+0x961 namei(ffff80002a7d13d8) at namei+0x7ca dorenameat(ffff80002a801770,4,200000c0,3,0) at dorenameat+0x91 syscall(ffff80002a7d15c0) at syscall+0x962 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3a204c74000, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x25 panic(ffffffff8343e7a5) at panic+0x1cf ufsdirhash_lookup(fffffd806996b400,ffff80002a82cc00,1,fffffd806996b4bc,ffff80002a7d10b0,ffff80002a7d10bc) at ufsdirhash_lookup+0xb9a ufs_lookup() at ufs_lookup+0xf66 VOP_LOOKUP(fffffd80698cda68,ffff80002a7d1408,ffff80002a7d1438) at VOP_LOOKUP+0x6e vfs_lookup(ffff80002a7d13d8) at vfs_lookup+0x961 namei(ffff80002a7d13d8) at namei+0x7ca dorenameat(ffff80002a801770,4,200000c0,3,0) at dorenameat+0x91 syscall(ffff80002a7d15c0) at syscall+0x962 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3a204c74000, count: -10