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    SubjectRe: Problem: Out of memory after 2days with 2GB RAM
    On Thu, Jun 12, 2008 at 5:12 PM, Zdenek Kabelac
    <zdenek.kabelac@gmail.com> wrote:
    > 2008/6/12 Johannes Berg <johannes@sipsolutions.net>:
    >> On Thu, 2008-06-12 at 09:38 -0400, Rik van Riel wrote:
    >>> On Thu, 12 Jun 2008 12:07:34 +0200
    >>> "Zdenek Kabelac" <zdenek.kabelac@gmail.com> wrote:
    >>>
    >>> > It looks like while there was a huge amount of buffers and caches -
    >>> > system was unable to allocate few pages for kmalloc in iwl3945 driver
    >>> > after resume.
    >>>
    >>> 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?

    We do some stupid free-alloc sequence on restart this is where it
    fails. I'm still polishing a patch that eliminates it.
    Tomas


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