Il 08/08/19 23:23, Akemi Yagi ha scritto:
On Wed, Aug 7, 2019 at 11:00 PM Alessandro Baggi
<alessandro.baggi@xxxxxxxxx> wrote:
Il 07/08/19 20:15, Akemi Yagi ha scritto:
On Wed, Aug 7, 2019 at 9:00 AM Alessandro Baggi
<alessandro.baggi@xxxxxxxxx> wrote:
Il 07/08/19 01:02, Phil Perry ha scritto:
On 06/08/2019 14:45, Alessandro Baggi wrote:
Please post the actual error message in dmesg or /var/log/messages.
It's likely that the kernel is just grumbling that the module is not
signed (missing key), but it's just noise unless you're using
SecureBoot. Posting the actual message in full will help determine if
that is the case.
Thanks
Phil
Hi, thank you for your reply,
I solve adding in "General Setup" values of current kernel on
localversion option and adding Module.symver from
/boot/symver-version.gz to module directory.
Now I get another problem compiling the third party module (i2c-nct6775):
"CONFIG_RETPOLINE=y but not supported by the compiler. Compiler update
recomended. Stop."
I tried using scl gcc7 and 8 but get the same issue.
I checked that retpoline is related to Spectre but checking on centos with:
cat /sys/devices/system/cpu/vulnerabilities/spectre_v2
I get:
Mitigation: IBRS (kernel), IBPB
and RETPOLINE seems disabled (I'm wrong?).
I ridden in a blog post that I can disable this check commenting out
some lines starting from N. 166 of arch/Makefile but I don't think this
is the best approach.
At this point I can't understand what means the previous error and why I
get this error when compiling i2c-nct6775.
Can someone point me in the right direction?
Please post the output from:
rpm -qa kernel\* | sort
and
uname -r
Akemi
kernel-3.10.0-957.12.1.el7.x86_64
kernel-3.10.0-957.12.2.el7.x86_64
kernel-3.10.0-957.21.3.el7.x86_64
kernel-3.10.0-957.27.2.el7.x86_64
kernel-3.10.0-957.el7.x86_64
kernel-devel-3.10.0-957.21.3.el7.x86_64
kernel-devel-3.10.0-957.27.2.el7.x86_64
kernel-headers-3.10.0-957.27.2.el7.x86_64
kernel-ml-5.1.0-1.el7.elrepo.x86_64
kernel-ml-devel-5.1.0-1.el7.elrepo.x86_64
kernel-tools-3.10.0-957.27.2.el7.x86_64
kernel-tools-libs-3.10.0-957.27.2.el7.x86_64
kernel-tools-libs-devel-3.10.0-957.27.2.el7.x86_64
3.10.0-957.27.2.el7.x86_64
So, you tried to build the i2c-nct6775 module against
kernel-3.10.0-957.27.2.el7 under the running kernel 3.10.0-957.27.2
and you have a matching version of kernel-devel. Then I don't quite
understand why you get the "not supported by the compiler" error...
Akemi
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I noticed also that if I run make modules, the module is compiled but if
I try to build it standalone I got this error.
Thank you for your time.
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