uvm_fault(0xffffffff82d8afc8, 0xffff8000124ef004, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ufs_lookup+0x4ce: movzwl 0x4(%r15,%r13,1),%ebx TID PID UID PRFLAGS PFLAGS CPU COMMAND 439309 81776 0 0 0 0 syz-executor714944071 *367405 64437 0 0 0 1K syz-executor714944071 ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281 VOP_LOOKUP(fffffd8068cef600,ffff8000212631a8,ffff8000212631d8) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_lookup(ffff800021263178) at vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 namei(ffff800021263178) at namei+0x55a sys/kern/vfs_lookup.c:250 dounlinkat(ffff8000211db808,ffffff9c,77499618a190,0) at dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 syscall(ffff800021263350) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800021263350) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77499618a640, 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: uvm_fault(0xffffffff82d8afc8, 0xffff8000124ef004, 0, 1) -> d ddb{1}> trace ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281 VOP_LOOKUP(fffffd8068cef600,ffff8000212631a8,ffff8000212631d8) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_lookup(ffff800021263178) at vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 namei(ffff800021263178) at namei+0x55a sys/kern/vfs_lookup.c:250 dounlinkat(ffff8000211db808,ffffff9c,77499618a190,0) at dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 syscall(ffff800021263350) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800021263350) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77499618a640, count: -7 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800021262fb0 rbx 0 rdx 0xfffffd806ca52040 rcx 0xffffffff rax 0xfffffd806ce56a50 r8 0xffffffffffffffff r9 0xfffffd807f7d7888 r10 0xf4a9a6f4f29946d1 r11 0xc64e7f0bbc658523 r12 0 r13 0 r14 0 r15 0xffff8000124ef000 rip 0xffffffff8270491e ufs_lookup+0x4ce cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800021262eb0 ss 0x10 ufs_lookup+0x4ce: movzwl 0x4(%r15,%r13,1),%ebx ddb{1}> show proc PROC (syz-executor714944071) tid=367405 pid=64437 tcnt=1 stat=onproc flags process=0 proc=0 runpri=76, usrpri=76, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff8000211eb550,0xffff8000211dad78 process=0xffff800021222190 user=0xffff80002125e000, vmspace=0xfffffd807eff81d0 estcpu=36, cpticks=3, pctcpu=1.6, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 60322 172325 23132 0 2 0 syz-executor714944071 79757 455089 93338 0 2 0 syz-executor714944071 28323 89367 12357 0 2 0 syz-executor714944071 12357 177072 1901 0 3 0x80 nanoslp syz-executor714944071 93338 322735 1901 0 2 0 syz-executor714944071 36232 142274 1901 0 2 0 syz-executor714944071 81776 439309 1901 0 7 0 syz-executor714944071 *64437 367405 1901 0 7 0 syz-executor714944071 18396 180090 1901 0 2 0 syz-executor714944071 23132 64642 1901 0 2 0 syz-executor714944071 76499 149857 1901 0 3 0x80 nanoslp syz-executor714944071 1901 371025 9335 0 3 0x82 nanoslp syz-executor714944071 9335 167302 80506 0 3 0x10008a sigsusp ksh 80506 477544 2579 0 3 0x9a kqread sshd 27296 185970 1 0 3 0x100083 ttyin getty 2579 228357 1 0 3 0x88 kqread sshd 98995 64434 204 74 3 0x1100092 bpf pflogd 204 228554 1 0 3 0x80 netio pflogd 39139 39713 47215 73 3 0x1100090 kqread syslogd 47215 441410 1 0 3 0x100082 netio syslogd 93419 380938 1 0 3 0x100080 kqread resolvd 12250 63890 40780 77 3 0x100092 kqread dhcpleased 44426 496968 40780 77 3 0x100092 kqread dhcpleased 40780 513708 1 0 3 0x80 kqread dhcpleased 55409 292663 0 0 3 0x14200 bored smr 34022 25268 0 0 2 0x14200 zerothread 91351 63771 0 0 3 0x14200 aiodoned aiodoned 370 227839 0 0 3 0x14200 syncer update 37470 155649 0 0 3 0x14200 cleaner cleaner 90686 233182 0 0 3 0x14200 reaper reaper 27778 156143 0 0 3 0x14200 pgdaemon pagedaemon 93832 303299 0 0 3 0x14200 bored viomb 92366 322842 0 0 3 0x40014200 acpi0 acpi0 33761 448401 0 0 3 0x40014200 idle1 72074 78315 0 0 3 0x14200 bored softnet3 98142 518561 0 0 3 0x14200 bored softnet2 943 126037 0 0 3 0x14200 bored softnet1 19461 23463 0 0 3 0x14200 bored softnet0 24047 257041 0 0 3 0x14200 bored systqmp 69877 429324 0 0 3 0x14200 bored systq 79719 300144 0 0 3 0x14200 tmoslp softclockmp 84937 275865 0 0 3 0x40014200 tmoslp softclock 52547 141682 0 0 3 0x40014200 idle0 1 481727 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 36232 (syz-executor714944071) thread 0xffff8000211daac0 (142274) exclusive rrwlock inode r = 0 (0xfffffd8068cfae70) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1314 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 #11 namei+0x55a sys/kern/vfs_lookup.c:250 #12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #13 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #13 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8068ce9c50) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 sys/kern/vfs_subr.c:676 #6 cache_lookup+0x2b4 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1ac sys/ufs/ufs/ufs_lookup.c:162 #8 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 #10 namei+0x55a sys/kern/vfs_lookup.c:250 #11 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #13 Xsyscall+0x128 Process 64437 (syz-executor714944071) thread 0xffff8000211db808 (367405) exclusive rrwlock inode r = 0 (0xfffffd8068d115f8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 sys/kern/vfs_subr.c:676 #6 cache_lookup+0x2b4 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1ac sys/ufs/ufs/ufs_lookup.c:162 #8 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 #10 namei+0x55a sys/kern/vfs_lookup.c:250 #11 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #13 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d15a68) #0 witness_lock+0x447 #1 syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline] #1 syscall+0x5cd sys/arch/amd64/amd64/trap.c:623 #2 Xsyscall+0x128 Process 18396 (syz-executor714944071) thread 0xffff8000211eb550 (180090) exclusive rrwlock inode r = 0 (0xfffffd8068d20708) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d5885e8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10163 6456K 6457K 78643K 11241 0 pcb 13 8K 8K 78643K 13 0 rtable 58 1K 2K 78643K 108 0 pf 15 6K 10K 78643K 26 0 ifaddr 13 9K 9K 78643K 13 0 ifgroup 22 1K 1K 78643K 22 0 counters 44 33K 33K 78643K 44 0 ioctlops 0 0K 4K 78643K 1475 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1176 74K 74K 78643K 1193 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 1K 1K 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 67 91K 91K 78643K 302 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 1K 78643K 260 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 125 6K 7K 78643K 12558 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 4 0K 0K 78643K 4 0 temp 1 5904K 5968K 78643K 66430 0 kqueue 11 16K 18K 78643K 24 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 17 0 14 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 144 35 0 20 1 0 1 1 0 8 0 syncache 304 5 0 5 2 2 0 1 0 8 0 tcpqe 32 118 0 118 1 1 0 1 0 8 0 tcpcb 808 8 0 5 1 0 1 1 0 8 0 arp 120 2 0 0 1 0 1 1 0 8 0 inpcb 368 33 0 27 1 0 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 9 0 7 2 1 1 1 0 8 0 pfstkey 128 9 0 7 2 1 1 1 0 8 0 pfstate 376 9 0 7 2 1 1 1 0 8 0 pfrule 1344 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 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 21253 0 16174 318 0 318 318 0 8 0 ffsino 272 21253 0 16174 339 0 339 339 0 8 0 nchpl 144 41249 0 39660 60 0 60 60 0 8 0 uvmvnodes 80 6153 0 0 126 0 126 126 0 8 0 vnodes 216 6153 0 0 342 0 342 342 0 8 0 namei 1024 93684 0 93682 3 1 2 2 0 8 1 percpumem 16 35 0 0 1 0 1 1 0 8 0 kstatmem 264 8 0 0 1 0 1 1 0 8 0 scxspl 216 102371 0 102371 16 10 6 8 1 8 6 plimitpl 152 17 0 10 1 0 1 1 0 8 0 sigapl 424 10244 0 10199 7 1 6 6 0 8 0 knotepl 120 47 0 0 2 0 2 2 0 8 0 kqueuepl 216 20 0 13 1 0 1 1 0 8 0 pipepl 320 91 0 88 2 1 1 1 0 8 0 fdescpl 496 10226 0 10199 4 0 4 4 0 8 0 filepl 152 30970 0 30905 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 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 104 81 0 68 1 0 1 1 0 8 0 zombiepl 144 10200 0 10199 2 1 1 1 0 8 0 processpl 1072 10244 0 10199 4 0 4 4 0 8 0 procpl 680 10244 0 10199 6 1 5 5 0 8 1 sockpl 488 85 0 61 5 1 4 4 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 295 0 0 34 5 29 34 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 331 0 0 18 1 17 18 0 8 0 bufpl 288 22411 0 16219 443 0 443 443 0 8 0 anonpl 24 268264 0 265991 27 13 14 25 0 186 0 amapchunkpl 152 18736 0 18514 10 1 9 9 0 158 0 amappl16 200 15471 0 15461 6 5 1 5 0 8 0 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 111 0 99 1 0 1 1 0 8 0 amappl13 176 18 0 18 1 1 0 1 0 8 0 amappl12 168 863 0 841 2 1 1 2 0 8 0 amappl11 160 63 0 49 1 0 1 1 0 8 0 amappl10 152 18 0 17 1 0 1 1 0 8 0 amappl9 144 212 0 212 1 1 0 1 0 8 0 amappl8 136 36 0 34 1 0 1 1 0 8 0 amappl7 128 22 0 21 1 0 1 1 0 8 0 amappl6 120 148 0 133 1 0 1 1 0 8 0 amappl5 112 118 0 107 1 0 1 1 0 8 0 amappl4 104 10373 0 10329 2 0 2 2 0 8 0 amappl3 96 2173 0 2126 3 1 2 2 0 8 0 amappl2 88 10396 0 10345 2 0 2 2 0 8 0 amappl1 80 39142 0 38641 16 4 12 12 0 8 0 amappl 88 12266 0 12187 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 10226 0 10199 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 10226 0 10199 1 0 1 1 0 8 0 vmmpekpl 168 29050 0 29027 2 0 2 2 0 8 0 vmmpepl 168 283284 0 281953 70 9 61 63 0 357 3 vmsppl 464 10225 0 10199 4 0 4 4 0 8 0 rwobjpl 56 34122 0 27212 100 2 98 98 0 8 0 pdppl 4096 20460 0 20398 138 72 66 70 0 8 4 pvpl 32 808980 0 803624 65 20 45 57 0 265 0 pmappl 248 10225 0 10199 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1317 0 82 36 0 36 36 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82c0cff0) 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 __mp_lock(ffffffff82d15860) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d15860) at __mp_lock+0x129 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff82d15860) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d15860) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff800021269160) at syscall+0x52b mi_syscall_return sys/sys/syscall_mi.h:138 [inline] syscall(ffff800021269160) at syscall+0x52b sys/arch/amd64/amd64/trap.c:644 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77499618a640, count: 6 ddb{0}> trace x86_ipi_db(ffffffff82c0cff0) 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 __mp_lock(ffffffff82d15860) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d15860) at __mp_lock+0x129 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff82d15860) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d15860) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff800021269160) at syscall+0x52b mi_syscall_return sys/sys/syscall_mi.h:138 [inline] syscall(ffff800021269160) at syscall+0x52b sys/arch/amd64/amd64/trap.c:644 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77499618a640, count: -9 ddb{0}> machine ddbcpu 1 Stopped at ufs_lookup+0x4ce: movzwl 0x4(%r15,%r13,1),%ebx ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281 VOP_LOOKUP(fffffd8068cef600,ffff8000212631a8,ffff8000212631d8) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_lookup(ffff800021263178) at vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 namei(ffff800021263178) at namei+0x55a sys/kern/vfs_lookup.c:250 dounlinkat(ffff8000211db808,ffffff9c,77499618a190,0) at dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 syscall(ffff800021263350) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800021263350) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77499618a640, count: 8 ddb{1}> trace ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281 VOP_LOOKUP(fffffd8068cef600,ffff8000212631a8,ffff8000212631d8) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_lookup(ffff800021263178) at vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 namei(ffff800021263178) at namei+0x55a sys/kern/vfs_lookup.c:250 dounlinkat(ffff8000211db808,ffffff9c,77499618a190,0) at dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 syscall(ffff800021263350) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800021263350) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77499618a640, count: -7