Re: Memory allocation Failure problem with kmalloc.

["Jesper Juhl" <jesper.juhl@gmail.com>]

On 20/07/06, Subbu <subbu@sasken.com> wrote:
>
>
> Hi,
>
>    I am working on 2.4.20 kernel.
>
>    I need to allocate memory with kmalloc.
>
>    kmalloc fails because i want to allocate more than 128kb. How to handle
> this issue.
>
>    Please help me in this regard.
>
>    How i can allocate memory of size equal to 1Mb with kmalloc or any other
> function (2.4 kernel)
>
kmalloc() allocates physically contiguous pages. 1M is a hell of a lot
of contig pages to ask for. I doubt you can get that much except at
early boot. But, if the pages don't actually need to be physically
contiguous, then you can use vmalloc() - it'll give you a virtually
contiguous range but the pages are not nessesarily physically
contiguous.

Why do you need this much btw?

-- 
Jesper Juhl <jesper.juhl@gmail.com>
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