panic: bad dir Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *434823 97437 0 0x2 0 0 ifconfig db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:212 ufs_dirbadentry(ffff8000149f0388,ffff8000149f0388,47ba879f7ee4fa3e) at ufs_dirbadentry VOP_LOOKUP(fffffd803efda960,ffff8000149f0430,ffff8000149f03f0) at VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 unveil_find_cover(fffffd803efda960,ffff8000ffff9778) at unveil_find_cover+0x139 sys/kern/kern_unveil.c:290 unveil_add_vnode(ffff8000ffff69e8,fffffd803efda960,0) at unveil_add_vnode+0x23c sys/kern/kern_unveil.c:471 unveil_add(ffff8000ffff9778,ffff8000149f09f8,ffff8000149f0ac3) at unveil_add+0x273 sys/kern/kern_unveil.c:597 sys_unveil(ffff8000ffff9778,ffff8000149f0b30,ffff8000149f0ba0) at sys_unveil+0x405 sys/kern/vfs_syscalls.c:937 syscall(ffff8000149f0c10) at syscall+0x511 Xsyscall(6,72,1,72,7f7fffff0208,d3483908ac8) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff0190, 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 bad dir ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:212 ufs_dirbadentry(ffff8000149f0388,ffff8000149f0388,47ba879f7ee4fa3e) at ufs_dirbadentry VOP_LOOKUP(fffffd803efda960,ffff8000149f0430,ffff8000149f03f0) at VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 unveil_find_cover(fffffd803efda960,ffff8000ffff9778) at unveil_find_cover+0x139 sys/kern/kern_unveil.c:290 unveil_add_vnode(ffff8000ffff69e8,fffffd803efda960,0) at unveil_add_vnode+0x23c sys/kern/kern_unveil.c:471 unveil_add(ffff8000ffff9778,ffff8000149f09f8,ffff8000149f0ac3) at unveil_add+0x273 sys/kern/kern_unveil.c:597 sys_unveil(ffff8000ffff9778,ffff8000149f0b30,ffff8000149f0ba0) at sys_unveil+0x405 sys/kern/vfs_syscalls.c:937 syscall(ffff8000149f0c10) at syscall+0x511 Xsyscall(6,72,1,72,7f7fffff0208,d3483908ac8) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff0190, count: -10 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff8000149f01a0 rbx 0xffff8000149f0250 rdx 0x2 rcx 0 rax 0 r8 0xffff8000149f0160 r9 0x1 r10 0 r11 0x9f8844d9bbdb0aea r12 0x3000000008 r13 0xffff8000149f01b0 r14 0x100 r15 0x1 rip 0xffffffff81a73678 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000149f0190 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (ifconfig) pid=434823 stat=onproc flags process=2 proc=0 pri=17, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff99d0,0xffffffff822b78f0 process=0xffff8000ffff69e8 user=0xffff8000149eb000, vmspace=0xfffffd803f014e70 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *97437 434823 14658 0 7 0x2 ifconfig 14658 303760 80315 0 3 0x10008a pause sh 80315 448976 44334 0 3 0x82 wait syz-executor.0 12820 54452 44334 0 3 0x82 piperd syz-executor.1 44334 380956 37126 0 3 0x82 thrsleep syz-fuzzer 44334 16428 37126 0 3 0x4000082 thrsleep syz-fuzzer 44334 140542 37126 0 3 0x4000082 thrsleep syz-fuzzer 44334 307308 37126 0 3 0x4000082 thrsleep syz-fuzzer 44334 461685 37126 0 3 0x4000082 thrsleep syz-fuzzer 44334 169747 37126 0 3 0x4000082 kqread syz-fuzzer 44334 94370 37126 0 3 0x4000082 thrsleep syz-fuzzer 37126 381819 98372 0 3 0x10008a pause ksh 98372 461636 31398 0 3 0x92 select sshd 52176 215163 1 0 3 0x100083 ttyin getty 31398 152161 1 0 3 0x80 select sshd 11205 261426 2532 73 2 0x100090 syslogd 2532 521052 1 0 3 0x100082 netio syslogd 8313 61889 1 77 3 0x100090 poll dhclient 3444 416511 1 0 3 0x80 poll dhclient 23810 520003 0 0 3 0x14200 pgzero zerothread 54393 151078 0 0 3 0x14200 aiodoned aiodoned 65010 391612 0 0 3 0x14200 syncer update 23913 505512 0 0 3 0x14200 cleaner cleaner 53050 185364 0 0 3 0x14200 reaper reaper 39193 374675 0 0 3 0x14200 pgdaemon pagedaemon 23296 466270 0 0 3 0x14200 bored crynlk 44148 65196 0 0 3 0x14200 bored crypto 39093 373361 0 0 3 0x40014200 acpi0 acpi0 87525 438711 0 0 3 0x14200 bored softnet 45030 310619 0 0 3 0x14200 bored systqmp 36502 85828 0 0 3 0x14200 bored systq 64539 422666 0 0 3 0x40014200 bored softclock 40524 376344 0 0 3 0x40014200 idle0 14811 289341 0 0 3 0x14200 bored smr 1 471655 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 Kern Lim devbuf 9443 6312K 6572K 78643K 10661 0 0 pcb 23 9K 9K 78643K 83 0 0 rtable 83 2K 3K 78643K 207 0 0 ifaddr 32 9K 10K 78643K 41 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 18 0 0 iov 0 0K 12K 78643K 4 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1203 75K 76K 78643K 1269 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 4 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 6 0K 0K 78643K 6 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 6 17K 25K 78643K 94 0 0 sigio 0 0K 0K 78643K 4 0 0 proc 44 46K 62K 78643K 301 0 0 subproc 66 67586K 69634K 78643K 102 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 2 0 0 in_multi 22 1K 2K 78643K 33 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 42 185K 185K 78643K 42 0 0 exec 0 0K 1K 78643K 184 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 78 20K 21K 78643K 984 0 0 UVM aobj 4 2K 2K 78643K 4 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 2 0 0 NDP 5 0K 0K 78643K 11 0 0 temp 89 2698K 2825K 78643K 5356 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 2 1 0 1 1 0 8 0 inpcbpl 280 48 0 41 1 0 1 1 0 8 0 plimitpl 152 15 0 8 1 0 1 1 0 8 0 rtentry 112 45 0 12 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 14 0 10 1 0 1 1 0 8 0 nd6 48 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 256 188 0 44 12 0 12 12 0 8 1 art_table 32 189 0 44 2 0 2 2 0 8 0 art_node 16 44 0 14 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semapl 112 4 0 0 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1529 0 116 46 0 46 46 0 8 0 ffsino 240 1529 0 116 84 0 84 84 0 8 0 nchpl 144 1841 0 213 61 0 61 61 0 8 0 uvmvnodes 72 1615 0 0 30 0 30 30 0 8 0 vnodes 200 1615 0 0 85 0 85 85 0 8 0 namei 1024 4539 0 4538 2 1 1 1 0 8 0 scxspl 192 10683 0 10683 8 7 1 6 0 8 1 sigapl 432 261 0 247 2 0 2 2 0 8 0 futexpl 56 909 0 909 1 0 1 1 0 8 1 knotepl 112 73 0 52 1 0 1 1 0 8 0 kqueuepl 104 12 0 10 1 0 1 1 0 8 0 pipepl 112 182 0 163 2 1 1 1 0 8 0 fdescpl 424 262 0 247 2 0 2 2 0 8 0 filepl 120 1254 0 1160 4 0 4 4 0 8 1 lockfpl 104 18 0 18 2 1 1 1 0 8 1 lockfspl 48 9 0 9 2 1 1 1 0 8 1 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 18 0 8 1 0 1 1 0 8 0 ucredpl 96 91 0 84 1 0 1 1 0 8 0 zombiepl 144 247 0 247 2 1 1 1 0 8 1 processpl 840 276 0 247 4 0 4 4 0 8 0 procpl 600 355 0 320 4 0 4 4 0 8 1 sockpl 384 106 0 89 3 0 3 3 0 8 1 mcl64k 65536 229 0 229 29 0 29 29 0 8 29 mcl12k 12288 2 0 2 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl4k 4096 9 0 9 2 2 0 1 0 8 0 mcl2k 2048 57822 0 57786 12 6 6 9 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 94670 0 94611 21 4 17 19 0 8 8 bufpl 256 17096 0 13984 198 0 198 198 0 8 0 anonpl 16 39979 0 31266 59 1 58 58 0 62 16 amapchunkpl 152 1159 0 1060 8 2 6 7 0 158 1 amappl16 192 1233 0 676 40 3 37 40 0 8 8 amappl14 176 65 0 61 2 1 1 1 0 8 0 amappl13 168 9 0 8 1 0 1 1 0 8 0 amappl12 160 17 0 15 1 0 1 1 0 8 0 amappl11 152 45 0 31 1 0 1 1 0 8 0 amappl10 144 66 0 64 2 1 1 1 0 8 0 amappl9 136 585 0 581 1 0 1 1 0 8 0 amappl8 128 155 0 139 1 0 1 1 0 8 0 amappl7 120 34 0 28 1 0 1 1 0 8 0 amappl6 112 55 0 49 1 0 1 1 0 8 0 amappl5 104 125 0 114 1 0 1 1 0 8 0 amappl4 96 430 0 406 2 1 1 2 0 8 0 amappl3 88 183 0 175 1 0 1 1 0 8 0 amappl2 80 1132 0 1090 2 0 2 2 0 8 0 amappl1 72 14144 0 13714 23 13 10 19 0 8 0 amappl 72 585 0 551 1 0 1 1 0 75 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 262 0 247 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 262 0 247 1 0 1 1 0 8 0 vmmpekpl 168 5994 0 5979 1 0 1 1 0 8 0 vmmpepl 168 36503 0 35062 104 19 85 85 0 357 20 vmsppl 264 261 0 247 2 1 1 2 0 8 0 pdppl 4096 530 0 494 6 1 5 6 0 8 0 pvpl 32 138960 0 127249 148 4 144 144 0 265 34 pmappl 200 261 0 247 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 373 0 16 11 0 11 11 0 8 0