Re: Page alloc failures under network/disk IO load

From: Dan NoÃ
Date: Thu Dec 04 2008 - 18:09:31 EST

Francois Romieu wrote:
> Dan Noà <dpn@xxxxxxxxxxxxx> :
> [...]
>> I'm a bit confused because on another system ( I never see
>> messages like this despite having the same amount of physical RAM in
>> each. The system is also under more active use, and has more
>> userspace memory usage. On that system:
> Does this system use the same network card ?

Nope, good point :) The system experiencing the allocation failures is
using an rtl8169 gigabit NIC (at 1gbps), the system is on a
100M connection with a gigabit Broadcom BCM5721 / tg3.

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)

04:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5721
Gigabit Ethernet PCI Express (rev 11)

I can see how this could account for different behavior, although
presumably both drivers are calling __netdev_alloc_skb.


/--------------- - - - - - -
| Dan NoÃ
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