Il 05/08/19 17:30, Akemi Yagi ha scritto: > On Mon, Aug 5, 2019 at 6:46 AM Alessandro Baggi > <alessandro.baggi at gmail.com> 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 > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > Hi Akemi, thank you for your answer. Kernel version used is 3.10.0-957.27.2.el7.x86_64 [root at c7-test SPECS]# modinfo cifs | grep filename filename: /lib/modules/3.10.0-957.27.2.el7.x86_64/extra/cifs.ko