warning: dword data exceeds bounds

[Ketsuban]

I'm using nasm to assembly the bootstrap code for a 64-bit higher-half kernel, and am getting this warning on these two lines (full source here, assembled with nasm -felf64 boot.asm).

Code: [Select]

lgdt [gdt64.pointer_low - KERNEL_BASE]

Code: [Select]

mov [pd_table - KERNEL_BASE + ecx * 8], eax
I found this thread on the same warning when searching which suggests it's spurious, but the suggested workaround doesn't work here because `&' operator may only be applied to scalar values. What can I do to convince nasm I know what I'm doing?