Search Linux Wireless

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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, 2013-02-19 at 08:21 -0800, Eric Dumazet wrote:
> On Tue, 2013-02-19 at 11:03 +0100, Johannes Berg wrote:
> > 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.
> 
> What are the drawbacks of setting amsdu_size_8K to 0 by default ?

We're discussing this now, the only downside would be that we couldn't
receive 8k A-MSDUs. Thing is, practically nobody uses A-MSDU anyway, and
even when I suspect the difference between 4k and 8k won't be huge.

johannes

--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Wireless Personal Area Network]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite Hiking]     [MIPS Linux]     [ARM Linux]     [Linux RAID]

  Powered by Linux