On Fri, Dec 11, 2020 at 2:19 AM Joe Buehler <aspam@xxxxxxx> wrote: > > When running lspci -v on Ubuntu 20.40, I get the error message: > > lspci: Unable to load libkmod resources: error -12 > > I tracked this down to a possible libkmod issue. The kernel I am using > has an empty modules.builtin.aliases.bin file (modules.builtin.aliases > does not exist). It is indeed a little bit confusing, but modules.builtin.alias.bin is created from modules.builtin.modinfo that should come with the kernel. Is this a custom kernel or one from the distro? modules.builtin.alias.bin should either not exist (in case the kernel doesn't have modules.builtin.modinfo) or should be a valid index. Indeed depmod doesn't create the file unless it has something to write. I wonder if the error wasn't because the call to depmod failed for some reason (out of space?). Looking at a ubuntu 20.04 system I do have both modules.builtin.modinfo and modules.builtin.alias.bin. If I remove modules.builtin.modinfo and call depmod -a, then the latter is not created. Lucas De Marchi > > kmod_load_resources() doesn't like this. It calls index_mm_open() which > checks the file size, sees that it is less than sizeof(hdr), error > terminates, causing kmod_load_resources() to return -ENOMEM. > > kmod version 27 as shipped with ubuntu 20.04 > > Please copy me on any responses, I am not on this list. > > Joe Buehler >
