From: Nikolay Aleksandrov <nikolay@cumulusnetworks•com>
To: David Miller <davem@davemloft•net>, fengguang.wu@intel•com
Cc: kbuild-all@01•org, netdev@vger•kernel.org
Subject: Re: [net-next:master 630/633] net/bridge/br_netlink.c:1110:1: warning: the frame size of 2160 bytes is larger than 2048 bytes
Date: Mon, 5 Oct 2015 11:33:42 +0200 [thread overview]
Message-ID: <561243F6.1060009@cumulusnetworks.com> (raw)
In-Reply-To: <20151005.024717.1982719584385972843.davem@davemloft.net>
On 10/05/2015 11:47 AM, David Miller wrote:
> From: kbuild test robot <fengguang.wu@intel•com>
> Date: Mon, 5 Oct 2015 10:42:54 +0800
>
>> tree: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git master
>> head: 3e087caa23ef36370bfb925d3bbca78e8302d3ce
>> commit: 7e4df51eb35deedd3ba8d4db92a6c36fb7eff90a [630/633] bridge: netlink: add support for igmp's intervals
>> config: x86_64-randconfig-s0-10051005 (attached as .config)
>> reproduce:
>> git checkout 7e4df51eb35deedd3ba8d4db92a6c36fb7eff90a
>> # save the attached .config to linux build tree
>> make ARCH=x86_64
>>
>> All warnings (new ones prefixed by >>):
>>
>> net/bridge/br_netlink.c: In function 'br_fill_info':
>>>> net/bridge/br_netlink.c:1110:1: warning: the frame size of 2160 bytes is larger than 2048 bytes [-Wframe-larger-than=]
>> }
>
> Nikolay, please look into this.
>
I am, this looks like to be caused by enabling KASAN (kernel address sanitizer), there's
a lot of additional code generated and the frame grows bigger.
The same thing is being discussed here:
http://www.spinics.net/lists/linux-media/msg93925.html
The real size is much smaller without kasan.
next prev parent reply other threads:[~2015-10-05 9:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-05 2:42 [net-next:master 630/633] net/bridge/br_netlink.c:1110:1: warning: the frame size of 2160 bytes is larger than 2048 bytes kbuild test robot
2015-10-05 9:47 ` David Miller
2015-10-05 9:33 ` Nikolay Aleksandrov [this message]
2015-10-05 9:43 ` Nikolay Aleksandrov
2015-10-05 10:11 ` [PATCH net-next] bridge: netlink: make br_fill_info's frame size smaller Nikolay Aleksandrov
2015-10-07 11:16 ` David Miller
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