Re: [PATCH] regression: vmalloc easily fail.

Avi Kivity
2008-10-29T06:28:21Z

Nick Piggin wrote:
> Right... that was to add a guard page like the old vmalloc allocator.
> vmallocs still add their extra page too, so most of them will have
> a 2 page guard area, but I didn't think this would hurt significantly.
>
> I'm not against the patch, but I wonder exactly what is filling it up
> and how? (can you look at the vmalloc proc function to find out?

Maybe we're allocating two guard pages, but freeing only one?

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.