Re: XFS unhappy with large holey loopback and syncs

[Steve Lord <lord@xxxxxxx>]

Andi Kleen wrote:
> On Tue, Nov 29, 2005 at 08:53:17AM -0600, Steve Lord wrote:
>
> > Andi Kleen wrote:
> >
> > > Yep - on x86-64. But the machine had 8GB of RAM, so if even that
> > > runs out of memory something is wrong imho. How large allocations
> > > would it need?
> > >
> > > -Andi
> > 28 bytes per extent so in this case rather a lot. This could be
>
> Assuming it created 300k extents that would be only ~8MB. That should
> be no problem for a 8GB machine.
>
> -Andi
Well, since it wants it as a single chunk of kernel memory..... that
gets hard to do in linux. Actually it probably has one large chunk and
is doing a realloc to get a larger chunk.

Steve