Re: CVS commit: src/sys

[Jason Thorpe]

> On Jul 23, 2019, at 9:14 AM, Rin Okuyama <rokuyama...@gmail.com> wrote:
> 
> Ah, you are right. We leaks uninitialized memory via mmap.
> 
> However, I'm not sure that it is safe to write DMA buffer
> above sc->sc_vramsize after bus_dmamap_load?
> 
> Thoughts, ARM experts?

Since fundamental memory allocation is done on page boundaries, would it 
suffice to simply ensure that the "leaked" memory is zero'd out first?  I mean, 
nothing else can use it for anything meaninful...

-- thorpej