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Date: Thu, 4 Jun 2020 16:27:29 +0200
From: Adam Zabrocki <pi3@....com.pl>
To: lkrg-users@...ts.openwall.com
Subject: Re: Support for 5.7 linux kernel?
Hi,
On Thu, Jun 04, 2020 at 12:37:21PM +0200, Solar Designer wrote:
> On Thu, Jun 04, 2020 at 07:51:51AM +0200, Adam Zabrocki wrote:
> > Can you double check if you have enabled CONFIG_MODULE_UNLOAD ?
> > I've checked the sources here (latest 5.7):
> >
> > https://elixir.bootlin.com/linux/v5.7-rc7/source/include/linux/module.h#L501
> >
> > and missing variable is under #ifdef CONFIG_MODULE_UNLOAD block.
>
> Maybe we need to support LKRG build without CONFIG_MODULE_UNLOAD, by
> conditionally excluding the corresponding functionality from LKRG as
> well. Adam, what do you think?
>
In theory we can, however I haven't seen any kernel in the production which
allows to dynamically load kernel module but disabled CONFIG_MODULE_UNLOAD.
There are significant side effects of having kernel like this and the way how
kernel enumerates such modules is also slightly different.
I think we should add to the code verification if specific CONFIG_* options are
enabled. In such case, people would immediately see which options they are
missing. I might create patch for that.
Thanks,
Adam
> Alexander
--
pi3 (pi3ki31ny) - pi3 (at) itsec pl
http://pi3.com.pl
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