linux-kernel - Re: drivers/pci/hotplug/ibmphp_ebda.c:409:1: warning: the frame size of 1108 bytes is larger than 1024 bytes

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Message-Id: <20161017233752.68d20a89dbc9b0ff8841c9b3@gmail.com>
Date:   Mon, 17 Oct 2016 23:37:52 +0200
From:   Emese Revfy <re.emese@...il.com>
To:     kbuild test robot <fengguang.wu@...el.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Kees Cook <keescook@...omium.org>
Subject: Re: drivers/pci/hotplug/ibmphp_ebda.c:409:1: warning: the frame
 size of 1108 bytes is larger than 1024 bytes

On Sun, 16 Oct 2016 06:52:16 +0800
kbuild test robot <fengguang.wu@...el.com> wrote:

>    drivers/pci/hotplug/ibmphp_ebda.c: In function 'ibmphp_access_ebda':
> >> drivers/pci/hotplug/ibmphp_ebda.c:409:1: warning: the frame size of 1108 bytes is larger than 1024 bytes [-Wframe-larger-than=]

Hi,

Thanks for the report. The problem is that these are large functions
(there are a lot of basic blocks) and the entropy plugin instruments all basic blocks.
I think the solution is to skip these functions which contain more than n basic blocks.
Sorry, I haven't time to fix this bug. PaX Team will fix it in PaX.

-- 
Emese