netdev - Re: [2.6.25-rc2, 2.6.24-rc8] page allocation failure...

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Date:	Mon, 18 Feb 2008 04:58:49 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Daniel J Blueman" <daniel.blueman@...il.com>
Cc:	"Linux Kernel" <linux-kernel@...r.kernel.org>,
	netdev@...r.kernel.org, Auke Kok <auke-jan.h.kok@...el.com>
Subject: Re: [2.6.25-rc2, 2.6.24-rc8] page allocation failure...

On Sun, 17 Feb 2008 13:20:59 +0000 "Daniel J Blueman" <daniel.blueman@...il.com> wrote:

> I'm still hitting this with e1000e on 2.6.25-rc2, 10 times again.
> 
> It's clearly non-fatal, but then do we expect it to occur?
> 
> Daniel
> 
> --- [dmesg]
> 
> [ 1250.822786] swapper: page allocation failure. order:3, mode:0x4020
> [ 1250.822786] Pid: 0, comm: swapper Not tainted 2.6.25-rc2-119 #2
> [ 1250.822786]
> [ 1250.822786] Call Trace:
> [ 1250.822786]  <IRQ>  [<ffffffff8025fe9e>] __alloc_pages+0x34e/0x3a0
> [ 1250.822786]  [<ffffffff8048c6df>] ? __netdev_alloc_skb+0x1f/0x40
> [ 1250.822786]  [<ffffffff8027acc2>] __slab_alloc+0x102/0x3d0
> [ 1250.822786]  [<ffffffff8048c6df>] ? __netdev_alloc_skb+0x1f/0x40
> [ 1250.822786]  [<ffffffff8027b8cb>] __kmalloc_track_caller+0x7b/0xc0
> [ 1250.822786]  [<ffffffff8048b74f>] __alloc_skb+0x6f/0x160
> [ 1250.822786]  [<ffffffff8048c6df>] __netdev_alloc_skb+0x1f/0x40
> [ 1250.822786]  [<ffffffff8042652d>] e1000_alloc_rx_buffers+0x1ed/0x260
> [ 1250.822786]  [<ffffffff80426b5a>] e1000_clean_rx_irq+0x22a/0x330
> [ 1250.822786]  [<ffffffff80422981>] e1000_clean+0x1e1/0x540
> [ 1250.822786]  [<ffffffff8024b7a5>] ? tick_program_event+0x45/0x70
> [ 1250.822786]  [<ffffffff804930ba>] net_rx_action+0x9a/0x150
> [ 1250.822786]  [<ffffffff802336b4>] __do_softirq+0x74/0xf0
> [ 1250.822786]  [<ffffffff8020c5fc>] call_softirq+0x1c/0x30
> [ 1250.822786]  [<ffffffff8020eaad>] do_softirq+0x3d/0x80
> [ 1250.822786]  [<ffffffff80233635>] irq_exit+0x85/0x90
> [ 1250.822786]  [<ffffffff8020eba5>] do_IRQ+0x85/0x100
> [ 1250.822786]  [<ffffffff8020a5b0>] ? mwait_idle+0x0/0x50
> [ 1250.822786]  [<ffffffff8020b981>] ret_from_intr+0x0/0xa
> [ 1250.822786]  <EOI>  [<ffffffff8020a5f5>] ? mwait_idle+0x45/0x50
> [ 1250.822786]  [<ffffffff80209a92>] ? enter_idle+0x22/0x30
> [ 1250.822786]  [<ffffffff8020a534>] ? cpu_idle+0x74/0xa0
> [ 1250.822786]  [<ffffffff80527825>] ? rest_init+0x55/0x60

They're regularly reported with e1000 too - I don't think aything really
changed.

e1000 has this crazy problem where because of a cascade of follies (mainly
borked hardware) it has to do a 32kb allocation for a 9kb(?) packet.  It
would be sad if that was carried over into e1000e?

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