òiËñ+IcèLuvm_fault(0xffffffff83accc50, 0xffff800025762004, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at      ufs_lookup+0x613:       movzwl  0x4(%r15,%r14,1),%ebx
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*165133  37717      0         0x2          0    0  syz-executor
ufs_lookup() at ufs_lookup+0x613 sys/ufs/ufs/ufs_lookup.c:279
VOP_LOOKUP(fffffd807560f2a0,ffff800038cc9230,ffff800038cc9260) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff800038cc9200) at vfs_lookup+0x94a sys/kern/vfs_lookup.c:580
namei(ffff800038cc9200) at namei+0x7c3 sys/kern/vfs_lookup.c:250
domkdirat(ffff80003c8fd248,ffffff9c,7cd30538fcd0,1ff) at domkdirat+0x8b sys/kern/vfs_syscalls.c:3134
syscall(ffff800038cc93d0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff800038cc93d0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7cd30538fd70, 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> 
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: uvm_fault(0xffffffff83accc50, 0xffff800025762004, 0, 1) -> d
ddb> trace
ufs_lookup() at ufs_lookup+0x613 sys/ufs/ufs/ufs_lookup.c:279
VOP_LOOKUP(fffffd807560f2a0,ffff800038cc9230,ffff800038cc9260) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff800038cc9200) at vfs_lookup+0x94a sys/kern/vfs_lookup.c:580
namei(ffff800038cc9200) at namei+0x7c3 sys/kern/vfs_lookup.c:250
domkdirat(ffff80003c8fd248,ffffff9c,7cd30538fcd0,1ff) at domkdirat+0x8b sys/kern/vfs_syscalls.c:3134
syscall(ffff800038cc93d0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff800038cc93d0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7cd30538fd70, count: -7
ddb> show registers
rdi                                0
rsi                              0x2
rbp               0xffff800038cc8f90
rbx                                0
rdx                                0
rcx                       0xffffffff
rax               0xffff80003c8fd248
r8                0xffffffffffffffff
r9                0xfffffd8007ffd3a8
r10               0xcd39facfd26e6f72
r11               0xca79d47b48bd5d7e
r12               0xfffffd806e380d60
r13                                0
r14                                0
r15               0xffff800025762000
rip               0xffffffff81351333    ufs_lookup+0x613
cs                               0x8
rflags                       0x10246    __ALIGN_SIZE+0xf246
rsp               0xffff800038cc8ea0
ss                              0x10
ufs_lookup+0x613:       movzwl  0x4(%r15,%r14,1),%ebx
ddb>