Re: [PATCH 3/6] Optional ZONE_DMA in the VM

Andi Kleen
2006-09-12T07:22:53Z

> So I totally agree, GFP_DMA allocations really ought to fail in this
> situation and we should fixup the users instead.

It's just impossible to fix them without having a bounce buffer.
The only way would be to not use the hardware. I guess
we can find out how many people still use floppies and other
such hardware by having it for some time in -mm*.

But I reserve the right that if this thing becomes a FAQ - e.g.
various people set the option wrong and break their systems
to rip it out again. I'm not interested at all in patches that increase
the bogus bug report rate.

-Andi