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: <20161018233645.ed29e83f81404f09a627287e@gmail.com>
Date:   Tue, 18 Oct 2016 23:36:45 +0200
From:   Emese Revfy <re.emese@...il.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     kbuild test robot <fengguang.wu@...el.com>, kbuild-all@...org,
        LKML <linux-kernel@...r.kernel.org>,
        "pageexec@...email.hu" <pageexec@...email.hu>,
        "spender@...ecurity.net" <spender@...ecurity.net>
Subject: Re: drivers/pci/hotplug/ibmphp_ebda.c:409:1: warning: the frame
 size of 1108 bytes is larger than 1024 bytes

On Tue, 18 Oct 2016 13:57:35 -0700
Kees Cook <keescook@...omium.org> wrote:

> This is controlled by CONFIG_FRAME_WARN. I don't think this is a
> particular problem or should be avoided, but perhaps we can set the
> default to 2048 (as done on 64BIT) if we're building with the entropy
> plugin.

This is probably a gcc code generation bug on i386 when a plugin uses too many 64 bit variables
so I think PaX Team's patch will be the best solution.

-- 
Emese