From mboxrd@z Thu Jan  1 00:00:00 1970
From: greg@kroah.com (Greg KH)
Date: Thu, 29 Sep 2016 13:24:40 +0200
Subject: insmod failing to insert a simple module
In-Reply-To: <CAA2oCOmGQJHWrScsXsd5N0EL99HiQjqGUeAQsn1KcM+-shWSGg@mail.gmail.com>
References: <CAA2oCOmGQJHWrScsXsd5N0EL99HiQjqGUeAQsn1KcM+-shWSGg@mail.gmail.com>
Message-ID: <20160929112440.GA16400@kroah.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On Thu, Sep 29, 2016 at 03:26:49PM +0530, Madhu K wrote:
> Hi All,
> 
> While inserting a kernel module, insmod is failing with following error.
> 
> 
> insmod: error inserting 'page_walk.ko': Invalid module format.
> 
> I verified the modinfo of "page_walk.ko" it is showing version magic as : 4.0.5_rc7+ SMP mod_unload modversions 686

Is the kernel version that you are currently running also 4.0.5-rc7+?
That is a requirement :)

> what does "mod_unload" mean here?

You have enabled the ability to unload modules.

Also look in your kernel log for any specific error messages when trying
to load a module, it usually will be more verbous than the insmod
program itself.

good luck,

greg k-h