Messages in this thread | | | Date | Thu, 24 Dec 2009 14:27:12 -0800 | From | Stephen Hemminger <> | Subject | Re: sky2 panic in 2.6.32.1 under load (new oops) |
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On Thu, 24 Dec 2009 14:18:12 -0500 Michael Breuer <mbreuer@majjas.com> wrote:
> I'll be the first to admit I don't know much about network drivers... > but I am wondering why __free_page(frag->page); is called in > skb_put_frags when the fragment length is zero. I don't see why that > page pointer wouldn't potentially be reused afterwords.
When using Jumbo frames, the sky2 driver allocates pages to hold the larger part of the frame. With 9K MTU it will allocate 2 * 4K pages and then 1K for start of frame. Then if frame is <= 1K it will drop the extra pages. Not sure why this broke now, I am not a VM expert.
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