panic: bad dir Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *453331 90744 0 0x8000000 0x4000000 0K syz-executor.7 8066 45816 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82892932) at panic+0x17b sys/kern/subr_prf.c:198 ufs_lookup() at ufs_lookup+0x169a sys/ufs/ufs/ufs_lookup.c:600 VOP_LOOKUP(fffffd807af63498,ffff8000373d8ad8,ffff8000373d8b08) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000373d8aa8) at vfs_lookup+0x6f8 sys/kern/vfs_lookup.c:566 namei(ffff8000373d8aa8) at namei+0x56a sys/kern/vfs_lookup.c:250 dofstatat(ffff8000324094e8,ffffff9c,20000240,20000380,0) at dofstatat+0xae sys/kern/vfs_syscalls.c:2073 syscall(ffff8000373d8d20) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff8000373d8d20) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb88165e6df0, count: 6 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: bad dir ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82892932) at panic+0x17b sys/kern/subr_prf.c:198 ufs_lookup() at ufs_lookup+0x169a sys/ufs/ufs/ufs_lookup.c:600 VOP_LOOKUP(fffffd807af63498,ffff8000373d8ad8,ffff8000373d8b08) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000373d8aa8) at vfs_lookup+0x6f8 sys/kern/vfs_lookup.c:566 namei(ffff8000373d8aa8) at namei+0x56a sys/kern/vfs_lookup.c:250 dofstatat(ffff8000324094e8,ffffff9c,20000240,20000380,0) at dofstatat+0xae sys/kern/vfs_syscalls.c:2073 syscall(ffff8000373d8d20) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff8000373d8d20) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb88165e6df0, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff8000373d8730 rbx 0xffffffff82cf5cdf cpu_info_full_primary+0x2cdf rdx 0xffff800000e1cb40 rcx 0xffff8000324094e8 rax 0xffffffff82cf4ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x7061b53507499bba r11 0x986322d29f75488a r12 0xffffffff82cf5ae0 cpu_info_full_primary+0x2ae0 r13 0 r14 0 r15 0x1 rip 0xffffffff81f0b7dc db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff8000373d8720 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.7) tid=453331 pid=90744 tcnt=4 stat=onproc flags process=8000000 proc=4000000 runpri=32, usrpri=80, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff800032408aa8,0xffff800032408828 process=0xffff8000323fd1f0 user=0xffff8000373d3000, vmspace=0xfffffd806be4aa68 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 67764 398405 57914 0 2 0x8000000 syz-executor.0 67764 261180 57914 0 3 0xc000080 kqread syz-executor.0 97591 174623 12992 0 3 0x8000080 nanoslp syz-executor.5 97591 110710 12992 0 3 0xc000080 netcon2 syz-executor.5 90744 283338 23736 0 2 0x8000000 syz-executor.7 *90744 453331 23736 0 7 0xc000000 syz-executor.7 90744 135255 23736 0 3 0xc000080 bell syz-executor.7 90744 333035 23736 0 3 0xc000080 fsleep syz-executor.7 85309 155284 40108 0 3 0x8000090 nanoslp syz-executor.4 85309 292002 40108 0 3 0xc000090 ttyin syz-executor.4 85309 298688 40108 0 3 0xc000090 fsleep syz-executor.4 40108 151556 63632 0 2 0x8000482 syz-executor.4 12992 298015 63632 0 2 0x8000482 syz-executor.5 41341 280988 63632 0 2 0x8000482 syz-executor.2 79700 82910 63632 0 2 0x8000002 syz-executor.3 57914 504086 63632 0 3 0x8000082 nanoslp syz-executor.0 80766 245899 63632 0 2 0x8000482 syz-executor.6 23736 81237 63632 0 3 0x8000082 nanoslp syz-executor.7 75180 319825 63632 0 3 0x8000082 nanoslp syz-executor.1 20193 105851 1 0 3 0x18100083 ttyin getty 49837 172381 0 0 3 0x14200 bored sosplice 63632 29834 7454 0 3 0x1a000082 thrsleep syz-fuzzer 63632 409668 7454 0 3 0x1e000082 nanoslp syz-fuzzer 63632 19697 7454 0 3 0x1e000082 thrsleep syz-fuzzer 63632 88976 7454 0 3 0x1e000082 thrsleep syz-fuzzer 63632 54064 7454 0 3 0x1e000082 thrsleep syz-fuzzer 63632 472751 7454 0 3 0x1e000082 wait syz-fuzzer 63632 80674 7454 0 3 0x1e000082 wait syz-fuzzer 63632 402826 7454 0 3 0x1e000082 wait syz-fuzzer 63632 383109 7454 0 3 0x1e000082 wait syz-fuzzer 63632 26386 7454 0 3 0x1e000082 wait syz-fuzzer 63632 363265 7454 0 3 0x1e000082 thrsleep syz-fuzzer 63632 249476 7454 0 3 0x1e000082 wait syz-fuzzer 63632 434531 7454 0 3 0x1e000082 wait syz-fuzzer 63632 485075 7454 0 3 0x1e000082 wait syz-fuzzer 63632 448468 7454 0 3 0x1e000082 thrsleep syz-fuzzer 63632 57804 7454 0 3 0x1e000082 kqread syz-fuzzer 7454 241768 6943 0 3 0x810008a sigsusp ksh 6943 223928 74783 0 3 0x1800009a kqread sshd 74783 340227 1 0 3 0x18000088 kqread sshd 31695 87442 51435 74 3 0x19100092 bpf pflogd 51435 31776 1 0 3 0x18000080 sbwait pflogd 8616 371685 43909 73 2 0x19100010 syslogd 43909 48446 1 0 3 0x18100082 sbwait syslogd 81164 297723 1 0 3 0x18100080 kqread resolvd 89355 275759 38627 77 3 0x18100092 kqread dhcpleased 63151 142734 38627 77 3 0x18100092 kqread dhcpleased 38627 296489 1 0 3 0x18000080 kqread dhcpleased 94212 94709 0 0 3 0x14200 bored smr 7942 171786 0 0 2 0x14200 zerothread 75300 20174 0 0 3 0x14200 aiodoned aiodoned 61918 23291 0 0 3 0x14200 syncer update 71360 22026 0 0 3 0x14200 cleaner cleaner 45816 8066 0 0 7 0x14200 reaper 69364 101203 0 0 3 0x14200 pgdaemon pagedaemon 27976 235409 0 0 3 0x14200 bored viomb 3245 255520 0 0 3 0x40014200 acpi0 acpi0 26377 455910 0 0 3 0x40014200 idle1 76058 474743 0 0 3 0x14200 bored softnet3 90608 79 0 0 3 0x14200 bored softnet2 92293 407956 0 0 3 0x14200 bored softnet1 89789 90605 0 0 3 0x14200 bored softnet0 32924 386320 0 0 3 0x14200 bored systqmp 9774 122197 0 0 3 0x14200 bored systq 6049 414775 0 0 3 0x14200 tmoslp softclockmp 7053 274768 0 0 3 0x40014200 tmoslp softclock 50240 174128 0 0 3 0x40014200 idle0 1 172402 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 90744 (syz-executor.7) thread 0xffff8000324094e8 (453331) exclusive rrwlock inode r = 0 (0xfffffd80686194e8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 #6 namei+0x56a sys/kern/vfs_lookup.c:250 #7 dofstatat+0xae sys/kern/vfs_syscalls.c:2073 #8 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #8 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d68468) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 syscall+0x83b mi_syscall sys/sys/syscall_mi.h:180 [inline] #1 syscall+0x83b sys/arch/amd64/amd64/trap.c:577 #2 Xsyscall+0x128 Process 79700 (syz-executor.3) thread 0xffff8000373e8038 (82910) exclusive rrwlock inode r = 0 (0xfffffd806e1e8b38) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x1e4 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xe6 sys/ufs/ufs/ufs_vnops.c:1117 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3077 #10 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #10 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806eb6d098) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 #6 namei+0x56a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3062 #8 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #8 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 8616 (syslogd) thread 0xffff8000ffffdc40 (371685) exclusive rrwlock inode r = 0 (0xfffffd806e78c2c0) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0xf1 sys/kern/vfs_syscalls.c:2904 #6 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #6 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10228 6656K 7092K 166960K 19289 0 pcb 17 13K 14K 166960K 959 0 rtable 230 16K 16K 166960K 2723 0 pf 39 10K 11K 166960K 354 0 ifaddr 47 17K 18K 166960K 366 0 ifgroup 68 2K 3K 166960K 610 0 sysctl 4 1K 2K 166960K 15 0 counters 70 37K 37K 166960K 336 0 ioctlops 0 0K 4K 166960K 1872 0 iov 0 0K 24K 166960K 423 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1441 91K 91K 166960K 6063 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 208 0 VM map 2 1K 1K 166960K 2 0 sem 27 68K 69K 166960K 203 0 dirhash 12 2K 2K 166960K 102 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 14 49K 81K 166960K 6471 0 sigio 0 0K 0K 166960K 182 0 proc 70 91K 128K 166960K 2515 0 subproc 104 6K 7K 166960K 866 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 1009 0 in_multi 88 6K 7K 166960K 1001 0 ether_multi 1 0K 0K 166960K 104 0 mrt 1 0K 0K 166960K 20 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 127 572K 572K 166960K 127 0 exec 0 0K 1K 166960K 1785 0 pfkey data 0 0K 0K 166960K 116 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 305 106K 133K 166960K 57344 0 UVM aobj 92 3K 3K 166960K 100 0 pinsyscall 38 76K 108K 166960K 9101 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 2K 166960K 561 0 NDP 15 0K 1K 166960K 274 0 temp 143 6821K 7317K 166960K 366520 0 kqueue 12 18K 31K 166960K 1001 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 656 0 653 1 0 1 1 0 8 0 rtentry 112 920 0 820 6 3 3 4 0 8 0 unpcb 144 5140 0 5121 25 24 1 6 0 8 0 syncache 336 4 0 4 1 1 0 1 0 8 0 sackhl 24 2 19 2 2 2 0 1 0 8 0 tcpqe 32 50 0 50 3 3 0 1 0 8 0 tcpcb 808 1961 0 1955 39 38 1 7 0 8 0 arp 120 146 0 130 1 0 1 1 0 8 0 inpcb 384 6843 0 6833 54 52 2 8 0 8 0 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 136 240 0 215 3 2 1 2 0 8 0 pkpcb 40 127 0 127 30 30 0 1 0 8 0 kcovpl 48 66 0 58 1 0 1 1 0 8 0 ppxss 1168 18 0 18 10 10 0 1 0 8 0 pffrag 232 64 0 58 4 3 1 1 0 482 0 pffrnode 88 64 0 58 4 3 1 1 0 8 0 pffrent 40 441 0 435 4 3 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 24 533 0 497 1 0 1 1 0 8 0 pfstkey 128 533 0 497 3 0 3 3 0 8 0 pfstate 376 533 0 497 10 4 6 7 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 1 2 1 1 2 0 8 0 art_heap4 256 3129 0 2707 55 28 27 29 0 8 0 art_table 32 3131 0 2708 5 1 4 4 0 8 0 art_node 16 835 0 744 1 0 1 1 0 8 0 sysvmsgpl 40 21 0 12 2 1 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 196 0 171 1 0 1 1 0 8 0 shmpl 112 97 0 8 3 0 3 3 0 8 0 dirhash 1024 77 0 60 3 0 3 3 0 8 0 dino2pl 256 11607 0 10010 100 0 100 100 0 8 0 ffsino 272 11607 0 10010 108 1 107 107 0 8 0 nchpl 144 21373 0 19630 67 0 67 67 0 8 0 uvmvnodes 80 10645 0 0 218 0 218 218 0 8 0 vnodes 216 10645 0 0 592 0 592 592 0 8 0 namei 1024 73386 0 73384 14 13 1 2 0 8 0 percpumem 16 182 0 133 1 0 1 1 0 8 0 vcpupl 3904 17 0 2 2 0 2 2 0 8 0 vmpool 696 26 0 11 2 0 2 2 0 8 0 kstatmem 264 296 0 266 4 1 3 3 0 8 0 scsiplug 72 21 0 21 13 13 0 1 0 8 0 scxspl 216 139752 0 139752 42 41 1 8 1 8 1 plimitpl 152 964 0 947 1 0 1 1 0 8 0 sigapl 424 6763 0 6714 18 10 8 9 0 8 0 futexpl 64 101638 0 101636 18 17 1 1 0 8 0 knotepl 120 966 0 0 19 0 19 19 0 8 0 kqueuepl 216 2068 0 2059 11 10 1 5 0 8 0 pipepl 320 1127 0 1099 8 5 3 6 0 8 0 fdescpl 496 6659 0 6632 12 7 5 5 0 8 0 filepl 152 44247 0 43992 37 24 13 17 0 8 0 lockfpl 104 1692 0 1689 1 0 1 1 0 8 0 lockfspl 48 735 0 732 1 0 1 1 0 8 0 sessionpl 144 78 0 61 1 0 1 1 0 8 0 pgrppl 48 166 0 149 1 0 1 1 0 8 0 ucredpl 104 7060 0 7043 1 0 1 1 0 8 0 zombiepl 144 6717 0 6714 2 1 1 1 0 8 0 processpl 1136 6763 0 6714 8 2 6 6 0 8 0 procpl 656 13878 0 13807 15 6 9 9 0 8 0 srpgc 96 46 0 46 10 10 0 1 0 8 0 sosppl 168 104 0 104 26 26 0 1 0 8 0 sockpl 664 12829 0 12797 69 65 4 17 0 8 1 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 684 0 0 45 17 28 45 0 8 1 mtagpl 96 37 0 0 1 0 1 1 0 8 0 mbufpl 256 1549 0 0 67 0 67 67 0 8 0 bufpl 280 22974 0 12328 761 0 761 761 0 8 0 anonpl 24 922418 0 916016 268 198 70 95 0 186 2 amapchunkpl 152 187022 0 186341 174 134 40 50 0 158 8 amappl16 200 20694 0 20571 188 177 11 21 0 8 0 amappl15 192 15 0 15 2 2 0 1 0 8 0 amappl14 184 347 0 335 2 1 1 2 0 8 0 amappl13 176 13 0 12 1 0 1 1 0 8 0 amappl12 168 8213 0 8179 3 1 2 2 0 8 0 amappl11 160 54 0 40 1 0 1 1 0 8 0 amappl10 152 142 0 132 1 0 1 1 0 8 0 amappl9 144 181 0 180 1 0 1 1 0 8 0 amappl8 136 282 0 241 2 0 2 2 0 8 0 amappl7 128 61 0 44 1 0 1 1 0 8 0 amappl6 120 1170 0 1153 2 1 1 2 0 8 0 amappl5 112 408 0 393 1 0 1 1 0 8 0 amappl4 104 1062 0 1020 2 0 2 2 0 8 0 amappl3 96 35181 0 35096 3 0 3 3 0 8 0 amappl2 88 7254 0 7175 4 2 2 4 0 8 0 amappl1 80 32464 0 31930 23 10 13 23 0 8 0 amappl 88 55865 0 55668 7 1 6 6 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 99 0 8 2 0 2 2 0 8 0 uaddrrnd 24 6685 0 6643 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 6685 0 6643 1 0 1 1 0 8 0 vmmpekpl 168 49625 0 49561 4 0 4 4 0 8 0 vmmpepl 168 417609 0 415686 233 133 100 117 0 357 1 vmsppl 440 6684 0 6642 8 2 6 6 0 8 0 rwobjpl 56 108666 0 96753 187 18 169 171 0 8 0 pdppl 4096 13377 0 13299 388 304 84 87 0 8 6 pvpl 32 45400 0 0 367 0 367 367 0 265 0 pmappl 248 6684 0 6642 6 3 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 839 0 415 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82892932) at panic+0x17b sys/kern/subr_prf.c:198 ufs_lookup() at ufs_lookup+0x169a sys/ufs/ufs/ufs_lookup.c:600 VOP_LOOKUP(fffffd807af63498,ffff8000373d8ad8,ffff8000373d8b08) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000373d8aa8) at vfs_lookup+0x6f8 sys/kern/vfs_lookup.c:566 namei(ffff8000373d8aa8) at namei+0x56a sys/kern/vfs_lookup.c:250 dofstatat(ffff8000324094e8,ffffff9c,20000240,20000380,0) at dofstatat+0xae sys/kern/vfs_syscalls.c:2073 syscall(ffff8000373d8d20) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff8000373d8d20) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb88165e6df0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff82d68260) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d68260) at __mp_lock+0x133 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff80002a155930,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1371 uvm_map_teardown(fffffd806b4ea018) at uvm_map_teardown+0x2f8 sys/uvm/uvm_map.c:2554 uvmspace_free(fffffd806b4ea018) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3461 reaper(ffff80002a1491f8) at reaper+0x197 sys/kern/kern_exit.c:463 end trace frame: 0x0, count: 6 ddb{1}> trace x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff82d68260) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d68260) at __mp_lock+0x133 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff80002a155930,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1371 uvm_map_teardown(fffffd806b4ea018) at uvm_map_teardown+0x2f8 sys/uvm/uvm_map.c:2554 uvmspace_free(fffffd806b4ea018) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3461 reaper(ffff80002a1491f8) at reaper+0x197 sys/kern/kern_exit.c:463 end trace frame: 0x0, count: -9