[OpenBIOS] Booting SunOS from OpenBIOS
mark.cave-ayland at ilande.co.uk
Wed Apr 3 14:14:41 CEST 2013
On 03/04/13 11:14, Artyom Tarasenko wrote:
> It seems to be an unrelated problem, double allocation of the page 0
> is still a double allocation.
> OTOH maybe the hint address 0 is an explicit invitation to get a next
> free chunk?
Very interesting. That could actually be right for two reasons:
1. 0x1000 is a multiple of page size
2. If you're not checking the return result, then what is the sense in
requesting the same allocation (va = 0) twice?
So yes, I'd definitely try adding some test code to check if va == 0,
and if so, set align = size before calling ofmem_claim_virt().
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