Re: NetBSD/virt68k live-image

[mlelstv%serpens.de@localhost (Michael van Elst)]

cmhanson%eschatologist.net@localhost (Chris Hanson) writes:

>This is probably something that needs the much-discussed 68K page table =
>improvements to build, right? Otherwise even with 8KB pages 68K is still =
>limited to 960MB address space.

That's a different topic.

The process address space is limited due to our setup of the page tables.
An m68k can have a 4GB process user address space and an additional
4GB for the kernel independent of the page size.

That panic however must be some virt68k (and probably hp300) specific bug,
it doesn't occur on e.g. NetBSD/amiga.

>That had been enough for me to build git on my HP 9000-433s, but I can =
>imagine there are packages that need 1GB or more address space to build =
>these days, probably including LLVM et al.

Definitely, and nowadays it's even too much for any 32bit platform.
On the other hand, most of it also needs more address space to run.

N.B. NetBSD/amiga limits user address space to 480MB (and uses 8K pages).