On Mon, Aug 5, 2019 at 8:42 AM Alessandro Baggi
<alessandro.baggi@xxxxxxxxx> wrote:
>
> Il 05/08/19 17:30, Akemi Yagi ha scritto:
> > On Mon, Aug 5, 2019 at 6:46 AM Alessandro Baggi
> > <alessandro.baggi@xxxxxxxxx> wrote:
> >>
> >> Hey there,
> >> I'm trying to compile a single module following this guide:
> >>
> >> https://wiki.centos.org/HowTos/BuildingKernelModules#head-d2e4c05886f94c701e4ae74387d41d8c40c25d01
> >>
> >> and
> >>
> >> https://wiki.centos.org/HowTos/I_need_the_Kernel_Source
> >>
> >> I tried to compile a module for novuton led controller supplied by
> >> thirdparty and I got several error.
> >>
> >> To check if this is the wrong procedure I tried to compile cifs module
> >> as listed in howto but when loading with modprobe I get "Exec format
> >> error", and from dmesg "cifs: no symbol version for module_layout
> >> ", the same errors when compiling novuton module and I don't know why I
> >> get this error.
> >
> > When following the instructions in BuildingKernelModules, which kernel
> > version did you use? Also, after the "depmod -a" step, what is the
> > output from:
> >
> > $ modinfo cifs | grep filename
> >
> >> I noticed that modules in centos are compressed in .xz but after running
> >> make M=fs/cifs I got only a .ko kernel module and then I run xz to
> >> compress the new module.
> >
> > Compressing modules is optional. Uncompressed form is functionally the
> > same (of course it saves some disk space).
> >
> >> Can someone help me please?
> >>
> >> Thanks in advance.
> >
> > Akemi
>
> Hi Akemi,
> thank you for your answer.
>
> Kernel version used is 3.10.0-957.27.2.el7.x86_64
>
> [root@c7-test SPECS]# modinfo cifs | grep filename
> filename: /lib/modules/3.10.0-957.27.2.el7.x86_64/extra/cifs.ko
Looking good. I assume your running kernel is 3.10.0-957.27.2.el7 ?
Akemi
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