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Date: Thu, 4 Jun 2020 08:25:39 +0200
From: Mikhail Morfikov <>
Subject: Re: Support for 5.7 linux kernel?

On 04/06/2020 08:11, Mikhail Morfikov wrote:
> On 04/06/2020 07:51, Adam Zabrocki wrote:
>> Hey,
>> Can you double check if you have enabled CONFIG_MODULE_UNLOAD ?
>> I've checked the sources here (latest 5.7):
>> and missing variable is under #ifdef CONFIG_MODULE_UNLOAD block.
> Yes, it builds well with CONFIG_MODULE_UNLOAD enabled.:
> # dkms status
> lkrg, 0.7+git20200604, 5.7.0-amd64, x86_64: installed

Ok, maybe it builds nice now, but it doesn't look like it's working well:

# modprobe -v p_lkrg
insmod /lib/modules/5.7.0-amd64/updates/dkms/p_lkrg.ko
modprobe: ERROR: could not insert 'p_lkrg': Network is down

and in the syslog I have the following:

kernel: [p_lkrg] Loading LKRG...
kernel: [p_lkrg] System does NOT support SMAP. LKRG can't enforce SMAP validation :(
kernel: [p_lkrg] [get_kallsyms_address] register_kprobe error [-38] :(
kernel: [p_lkrg] Can't find kallsyms_lookup_name() function address! Exiting...

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