On 20/2/18 8:54 am, Ed Greshko wrote:
On 02/20/18 04:41, Stephen Morris wrote:
I'm using the nvidia drivers from negativo17. I have the nvidia source module
registered with dkms and it seems to be being compiled when I get a new kernel, if
that is the case what do I need to do to resolve the following messages shown by
"dmesg"?
[ 14.934074] nvidia: loading out-of-tree module taints kernel.
[ 14.934086] nvidia: module license 'NVIDIA' taints kernel.
[ 14.934087] Disabling lock debugging due to kernel taint
[ 14.943865] nvidia: module verification failed: signature and/or required key
missing - tainting kernel
When you load a proprietary module into the kernel it becomes tainted. There is no
way to "fix" it. It is like replacing the battery in your iPhone with a battery you
bought on the street corner. You have voided the warranty.
I been in the situation of compiling kernel modules in other linux
distributions where you could put statements in your source to stop
these messages, but I have forgotten what they were.
Looking at dmesg again this morning, and searching for the work 'taints'
I get the 2nd message listed above but not the first message (why?), and
this search displays a message in the same format as the first message
for my wifi driver which is also compiled, but I don't see any messages
with the word 'taints' in them for the 6 compiled kernel modules
provided by the vendor of my mouse that I am compiling via dkms. Of the
6 modules I am compiling one and possibly two are being actively loaded
and used by the kernel, so why are these not producing the messages?
Also given that this morning I am seeing the equivalent of the first
message for my wifi driver, but I am not seeing it for the nvidia
driver, which makes it look like these messages are random, are they
actually random or is the lack of the message and indication that the
kernel is potentially not working correctly?
regards,
Steve
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