Re: [OpenBIOS] Booting SunOS from OpenBIOS

[Tarl Neustaedter]

On 2013-Apr-5 15:40 , Artyom Tarasenko wrote:
> [...]
> OFMEM: ofmem_map_page_range ffc7d000 -> 006f7d000 00001000 mode 000000bc
> OFMEM: ofmem_claim phys=ffffffffffffffff size=00014000 align=00020000
> OFMEM: ofmem_claim_virt virt=00000000 size=00014000 align=00020000
> OFMEM: ofmem_map_page_range ffc60000 -> 006f60000 00014000 mode 000000bc
>
> ^^^^ this one

Wherever that's coming from, that looks like an allocator doing 
descending addresses.
> OFMEM: ofmem_map_page_range ffc5c000 -> 006f78000 00001000 mode 000000bc
> OFMEM: ofmem_claim phys=ffffffffffffffff size=00002000 align=00002000
> OFMEM: ofmem_claim_virt virt=ffc5d000 size=00002000 align=00000000
> OFMEM: ofmem_map_page_range ffc5d000 -> 006f5e000 00002000 mode 000000bc
> ...OFMEM: ofmem_claim phys=ffffffffffffffff size=00002000 align=00002000
> OFMEM: ofmem_claim_virt virt=ffc5f000 size=00002000 align=00000000
> OFMEM: Non-free virtual memory claimed!
>
> ^^^^ overlaps with this one.

This allocator, whatever it is has been doing ascending addresses. This 
actually looks like you simply ran out of room.

You might change that patch rather than rounding up to the next 2^n, 
don't bother aligning to anything more than 0x2000.