uvm_fault(0xffffffff82d6bcf0, 0xffff8000180bf004, 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 185351 99620 0 0 0 0 syz-executor.0 * 51567 40335 0 0 0x4000000 1K syz-executor.3 ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281 VOP_LOOKUP(fffffd807d7af528,ffff80002e428fd8,ffff80002e429008) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002e428fa8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 namei(ffff80002e428fa8) at namei+0x55a sys/kern/vfs_lookup.c:250 vn_open(ffff80002e428fa8,b59,0) at vn_open+0x188 sys/kern/vfs_vnops.c:107 doopenat(ffff80002614d080,ffffff9c,20000180,b58,0,ffff80002e429180) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff80002e429200) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e429200) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb935938a120, count: 7 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(0xffffffff82d6bcf0, 0xffff8000180bf004, 0, 1) -> d ddb{1}> trace ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281 VOP_LOOKUP(fffffd807d7af528,ffff80002e428fd8,ffff80002e429008) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002e428fa8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 namei(ffff80002e428fa8) at namei+0x55a sys/kern/vfs_lookup.c:250 vn_open(ffff80002e428fa8,b59,0) at vn_open+0x188 sys/kern/vfs_vnops.c:107 doopenat(ffff80002614d080,ffffff9c,20000180,b58,0,ffff80002e429180) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff80002e429200) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e429200) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb935938a120, count: -8 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002e428c10 rbx 0 rdx 0xffff800000cfaa80 rcx 0xffffffff rax 0xfffffd806bf79a38 r8 0xffffffffffffffff r9 0xfffffd807f7d7820 r10 0x448c378315674e3a r11 0x1cda571729256d22 r12 0 r13 0 r14 0 r15 0xffff8000180bf000 rip 0xffffffff81e0d07e ufs_lookup+0x4ce cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80002e428b10 ss 0x10 ufs_lookup+0x4ce: movzwl 0x4(%r15,%r13,1),%ebx ddb{1}> show proc PROC (syz-executor.3) pid=51567 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80002614cb10,0xffff80002614c040 process=0xffff8000212bf258 user=0xffff80002e424000, vmspace=0xfffffd8069a4e000 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 99620 185351 94656 0 7 0 syz-executor.0 94494 95460 29654 0 2 0 syz-executor.7 94494 416054 29654 0 2 0x4000000 syz-executor.7 40335 462397 98660 0 2 0 syz-executor.3 *40335 51567 98660 0 7 0x4000000 syz-executor.3 77643 496267 28766 0 2 0 syz-executor.5 77643 75751 28766 0 3 0x4000080 fsleep syz-executor.5 25148 316196 24225 0 2 0 syz-executor.6 25148 434202 24225 0 3 0x4000080 fsleep syz-executor.6 70374 524145 80970 0 2 0 syz-executor.4 70374 205606 80970 0 3 0x4000080 fsleep syz-executor.4 46874 244490 89038 0 2 0 syz-executor.2 46874 489932 89038 0 3 0x4000080 fsleep syz-executor.2 65904 450641 79630 0 2 0 syz-executor.1 65904 188185 79630 0 3 0x4000080 fsleep syz-executor.1 14967 258937 0 0 3 0x14200 bored sosplice 29654 235186 34205 0 3 0x82 nanoslp syz-executor.7 24225 417284 34205 0 2 0x2 syz-executor.6 28766 417099 34205 0 3 0x82 nanoslp syz-executor.5 80970 179359 34205 0 3 0x82 nanoslp syz-executor.4 98660 340265 34205 0 3 0x82 nanoslp syz-executor.3 89038 213970 34205 0 3 0x82 nanoslp syz-executor.2 79630 28003 34205 0 3 0x82 nanoslp syz-executor.1 94656 165777 34205 0 3 0x82 nanoslp syz-executor.0 34205 32593 32757 0 3 0x82 thrsleep syz-fuzzer 34205 9434 32757 0 3 0x4000082 thrsleep syz-fuzzer 34205 296135 32757 0 3 0x4000082 thrsleep syz-fuzzer 34205 462773 32757 0 3 0x4000082 wait syz-fuzzer 34205 62392 32757 0 3 0x4000082 wait syz-fuzzer 34205 184081 32757 0 3 0x4000082 wait syz-fuzzer 34205 92118 32757 0 3 0x4000082 wait syz-fuzzer 34205 331852 32757 0 3 0x4000082 wait syz-fuzzer 34205 328559 32757 0 3 0x4000082 thrsleep syz-fuzzer 34205 338498 32757 0 3 0x4000082 wait syz-fuzzer 34205 117285 32757 0 3 0x4000082 thrsleep syz-fuzzer 34205 201099 32757 0 3 0x4000082 wait syz-fuzzer 34205 82380 32757 0 3 0x4000082 wait syz-fuzzer 34205 412707 32757 0 3 0x4000082 thrsleep syz-fuzzer 34205 246140 32757 0 3 0x4000082 thrsleep syz-fuzzer 34205 92922 32757 0 3 0x4000082 kqread syz-fuzzer 32757 84890 24367 0 3 0x10008a sigsusp ksh 24367 459549 91409 0 3 0x9a kqread sshd 33456 506740 1 0 3 0x100083 ttyin getty 91409 43562 1 0 3 0x88 kqread sshd 14022 204191 59476 74 3 0x1100092 bpf pflogd 59476 376941 1 0 3 0x80 netio pflogd 4613 6206 74767 73 3 0x1100090 kqread syslogd 74767 441672 1 0 3 0x100082 netio syslogd 38174 368940 1 0 3 0x100080 kqread resolvd 61117 495561 62351 77 3 0x100092 kqread dhcpleased 33345 317392 62351 77 3 0x100092 kqread dhcpleased 62351 423202 1 0 3 0x80 kqread dhcpleased 40141 193457 0 0 3 0x14200 bored smr 88300 188259 0 0 2 0x14200 zerothread 32287 238189 0 0 3 0x14200 aiodoned aiodoned 61466 214077 0 0 3 0x14200 syncer update 44372 42391 0 0 3 0x14200 cleaner cleaner 13904 291599 0 0 3 0x14200 reaper reaper 95937 434638 0 0 3 0x14200 pgdaemon pagedaemon 80350 88603 0 0 3 0x14200 bored viomb 43473 33228 0 0 3 0x40014200 acpi0 acpi0 75693 465734 0 0 3 0x40014200 idle1 98203 266869 0 0 3 0x14200 bored softnet 43971 82856 0 0 3 0x14200 bored softnet 81193 164731 0 0 3 0x14200 bored softnet 2543 159052 0 0 3 0x14200 bored softnet 71749 154913 0 0 3 0x14200 bored systqmp 55231 258512 0 0 3 0x14200 bored systq 58404 517632 0 0 3 0x40014200 bored softclock 54625 189860 0 0 3 0x40014200 idle0 1 75925 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 99620 (syz-executor.0) thread 0xffff80002614d8a8 (185351) exclusive rwlock amaplk r = 0 (0xfffffd806c129f68) #0 witness_lock+0x44d #1 uvm_fault_check+0x419 sys/uvm/uvm_fault.c:783 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #3 upageflttrap+0x85 sys/arch/amd64/amd64/trap.c:186 #4 usertrap+0x204 sys/arch/amd64/amd64/trap.c:438 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd8069a4e618) #0 witness_lock+0x44d #1 uvmfault_lookup+0xc9 sys/uvm/uvm_fault.c:1773 #2 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:673 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #4 upageflttrap+0x85 sys/arch/amd64/amd64/trap.c:186 #5 usertrap+0x204 sys/arch/amd64/amd64/trap.c:438 #6 recall_trap+0x8 Process 40335 (syz-executor.3) thread 0xffff80002614d080 (51567) exclusive rrwlock inode r = 0 (0xfffffd806482f1a8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 vn_open+0x188 sys/kern/vfs_vnops.c:107 #8 doopenat+0x26a sys/kern/vfs_syscalls.c:1127 #9 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #9 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82db6228) #0 witness_lock+0x44d #1 syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline] #1 syscall+0x5cd sys/arch/amd64/amd64/trap.c:625 #2 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10210 6501K 6695K 78643K 32086 0 pcb 13 12K 14K 78643K 1749 0 rtable 234 6K 6K 78643K 355 0 ifaddr 77 25K 25K 78643K 82 0 counters 60 35K 35K 78643K 60 0 ioctlops 0 0K 4K 78643K 28270 0 iov 0 0K 16K 78643K 2581 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1343 84K 84K 78643K 8424 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 198 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 1570 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 18 65K 78K 78643K 61278 0 sigio 1 0K 0K 78643K 2811 0 proc 68 91K 128K 78643K 520 0 subproc 104 6K 6K 78643K 104 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 99 6K 6K 78643K 99 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 73 334K 334K 78643K 73 0 exec 0 0K 1K 78643K 389 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 315 82K 83K 78643K 373338 0 UVM aobj 131 4K 4K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 12 0K 1K 78643K 28 0 temp 130 5778K 5906K 78643K 355559 0 kqueue 12 18K 24K 78643K 1667 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 37 0 34 1 0 1 1 0 8 0 rtentry 112 111 0 1 4 0 4 4 0 8 0 unpcb 144 57327 0 57312 268 267 1 11 0 8 0 syncache 296 4 0 4 1 1 0 1 0 8 0 tcpqe 32 105 0 105 1 1 0 1 0 8 0 tcpcb 776 2253 0 2249 50 49 1 14 0 8 0 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 368 5887 0 5880 85 84 1 7 0 8 0 nd6 48 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pffrag 232 24 0 24 4 4 0 2 0 482 0 pffrnode 88 22 0 22 3 3 0 1 0 8 0 pffrent 40 302 0 302 3 3 0 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 24 0 22 1 0 1 1 0 8 0 pfstkey 128 24 0 22 1 0 1 1 0 8 0 pfstate 384 24 0 22 1 0 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 256 452 0 0 29 0 29 29 0 8 0 art_table 32 453 0 0 4 0 4 4 0 8 0 art_node 16 110 0 10 1 0 1 1 0 8 0 semapl 112 1568 0 1558 2 1 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 67539 0 65593 122 0 122 122 0 8 0 ffsino 272 67539 0 65593 130 0 130 130 0 8 0 nchpl 144 150906 0 149221 63 0 63 63 0 8 0 uvmvnodes 80 6160 0 0 126 0 126 126 0 8 0 vnodes 216 6160 0 0 343 0 343 343 0 8 0 namei 1024 407747 0 407746 3 2 1 2 0 8 0 percpumem 16 43 0 0 1 0 1 1 0 8 0 kstatmem 264 24 0 0 2 0 2 2 0 8 0 scxspl 216 431385 0 431385 41 40 1 8 0 8 1 plimitpl 152 25 0 9 1 0 1 1 0 8 0 sigapl 424 61601 0 61552 7 1 6 6 0 8 0 futexpl 64 346658 0 346653 1 0 1 1 0 8 0 knotepl 120 111 0 0 4 0 4 4 0 8 0 kqueuepl 216 7976 0 7968 76 75 1 8 0 8 0 pipepl 320 138 0 110 3 0 3 3 0 8 0 fdescpl 496 61583 0 61552 5 0 5 5 0 8 0 filepl 152 254656 0 254409 362 352 10 22 0 8 0 lockfpl 104 5531 0 5529 7 6 1 2 0 8 0 lockfspl 48 1985 0 1983 1 0 1 1 0 8 0 sessionpl 144 24 0 7 1 0 1 1 0 8 0 pgrppl 48 24 0 7 1 0 1 1 0 8 0 ucredpl 104 7809 0 7794 1 0 1 1 0 8 0 zombiepl 144 61552 0 61552 1 0 1 1 0 8 1 processpl 1072 61601 0 61552 4 0 4 4 0 8 0 procpl 696 141767 0 141696 68 61 7 8 0 8 0 sockpl 488 63251 0 63226 1209 1204 5 36 0 8 1 mcl64k 65536 33 0 0 3 0 3 3 0 8 0 mcl16k 16384 73 0 0 7 4 3 3 0 8 0 mcl12k 12288 73 0 0 2 0 2 2 0 8 0 mcl9k 9216 57 0 0 2 0 2 2 0 8 0 mcl8k 8192 41 0 0 4 1 3 3 0 8 0 mcl4k 4096 49 0 0 4 1 3 3 0 8 0 mcl2k2 2112 21 0 0 2 0 2 2 0 8 0 mcl2k 2048 534 0 0 35 15 20 35 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 6933 0 0 350 2 348 348 0 8 0 bufpl 288 69194 0 62869 452 0 452 452 0 8 0 anonpl 24 10012733 0 10003233 104 42 62 78 0 186 0 amapchunkpl 152 1025187 0 1024563 106 80 26 27 0 158 0 amappl16 200 62339 0 62138 65 54 11 22 0 8 0 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 156 0 141 2 1 1 2 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 445 0 441 1 0 1 1 0 8 0 amappl11 160 52 0 37 1 0 1 1 0 8 0 amappl10 152 33 0 24 1 0 1 1 0 8 0 amappl9 144 1099 0 1097 1 0 1 1 0 8 0 amappl8 136 1142 0 1045 4 0 4 4 0 8 0 amappl7 128 309 0 284 2 0 2 2 0 8 0 amappl6 120 470 0 457 2 1 1 2 0 8 0 amappl5 112 1515 0 1506 1 0 1 1 0 8 0 amappl4 104 1175 0 1142 2 0 2 2 0 8 0 amappl3 96 172001 0 171941 2 0 2 2 0 8 0 amappl2 88 64374 0 64292 4 2 2 4 0 8 0 amappl1 80 1332182 0 1331371 28 10 18 28 0 8 0 amappl 88 372748 0 372576 6 1 5 5 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 61583 0 61552 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 61583 0 61552 1 0 1 1 0 8 0 vmmpekpl 168 351706 0 351665 3 0 3 3 0 8 0 vmmpepl 168 5218385 0 5215731 381 263 118 134 0 357 2 vmsppl 440 61582 0 61552 5 1 4 4 0 8 0 rwobjpl 56 1290050 0 1282319 129 20 109 109 0 8 0 pdppl 4096 123173 0 123104 1707 1638 69 77 0 8 0 pvpl 32 21551535 0 21536065 435 293 142 367 0 265 0 pmappl 248 61582 0 61552 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2938 0 1749 34 0 34 34 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82b24ff0) at x86_ipi_db+0x1a 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+0x23 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2f kd_curproc sys/dev/kcov.c:578 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2f sys/dev/kcov.c:148 __mp_lock(ffffffff82db6020) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db6020) at __mp_lock+0x133 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff82db6020) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db6020) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff80002afff040) at syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002afff040) at syscall+0x5cd sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe9fe0, count: 5 ddb{0}> trace x86_ipi_db(ffffffff82b24ff0) at x86_ipi_db+0x1a 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+0x23 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2f kd_curproc sys/dev/kcov.c:578 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2f sys/dev/kcov.c:148 __mp_lock(ffffffff82db6020) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db6020) at __mp_lock+0x133 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff82db6020) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db6020) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff80002afff040) at syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002afff040) at syscall+0x5cd sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe9fe0, count: -10 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(fffffd807d7af528,ffff80002e428fd8,ffff80002e429008) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002e428fa8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 namei(ffff80002e428fa8) at namei+0x55a sys/kern/vfs_lookup.c:250 vn_open(ffff80002e428fa8,b59,0) at vn_open+0x188 sys/kern/vfs_vnops.c:107 doopenat(ffff80002614d080,ffffff9c,20000180,b58,0,ffff80002e429180) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff80002e429200) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e429200) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb935938a120, count: 7 ddb{1}> trace ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281 VOP_LOOKUP(fffffd807d7af528,ffff80002e428fd8,ffff80002e429008) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002e428fa8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 namei(ffff80002e428fa8) at namei+0x55a sys/kern/vfs_lookup.c:250 vn_open(ffff80002e428fa8,b59,0) at vn_open+0x188 sys/kern/vfs_vnops.c:107 doopenat(ffff80002614d080,ffffff9c,20000180,b58,0,ffff80002e429180) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff80002e429200) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e429200) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb935938a120, count: -8