Re: 3.7.8/amd64 full interrupt hangs due to iwlwifi under big nfs copies out

Johannes Berg
2013-02-19T10:04:11Z

On Mon, 2013-02-18 at 21:17 -0800, Eric Dumazet wrote:

> > chrome: page allocation failure: order:1, mode:0x4020
> > Pid: 8730, comm: chrome Tainted: G O 3.7.8-amd64-preempt-20121226-fixwd #1
> > Call Trace:
> > <IRQ> [<ffffffff810d5f38>] warn_alloc_failed+0x117/0x12c

> You could try to load iwlwifi with amsdu_size_8K set to 0 (disable)
>
> It should hopefully use order-0 pages

It will, do that then, unfortunately it can't switch at runtime because
it advertised this support to the access point or clients.

johannes