linux-kernel - Re: Problem: Out of memory after 2days with 2GB RAM

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Date:	Thu, 12 Jun 2008 16:19:50 +0200
From:	Johannes Berg <johannes@...solutions.net>
To:	Zdenek Kabelac <zdenek.kabelac@...il.com>
Cc:	Rik van Riel <riel@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	yi.zhu@...el.com, reinette.chatre@...el.com,
	linux-wireless@...r.kernel.org
Subject: Re: Problem: Out of memory after 2days with 2GB RAM


> >> It looks like this is because it wants to allocate 2**5 contiguous
> >> pages, which is 128kB of contiguous kernel memory.
> >
> > 64-bit system I assume?
> > The allocation should be 256 * 20 * sizeof(struct sk_buff *).
> >
> > Try the patch below. It should improve code generation too.
> 
> I'll surely try you patch - but is the iwl the only driver which needs
> 128kB continuous memory chunk?

I don't know. But I think it'll probably fail right after, trying to
allocate a 32kb buffer with pci_alloc_something....

johannes

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