Hi, On Ubuntu 22.04 LTS, vanilla torvalds kernel, stock config-6.5.0-060500-rc5 + tools/../selftests/net/config, debug info on. There seems to be a build error I haven't seen before: At main.c:298: - SSL error:FFFFFFFF80000002:system library::No such file or directory: ../crypto/bio/bss_file.c:67 - SSL error:10000080:BIO routines::no such file: ../crypto/bio/bss_file.c:75 sign-file: debian/linux-image/lib/modules/6.5.0-rc6+/kernel/arch/x86/events/amd/amd-uncore.ko So, I understood there is no amd/amd-uncore.ko, but there is a compressed instance in the same directory: marvin@defiant:~/linux/kernel/linux_torvalds$ ls debian/linux-image/lib/modules/6.5.0-rc6+/kernel/arch/x86/events/amd amd-uncore.ko.zst marvin@defiant:~/linux/kernel/linux_torvalds$ Did I do something very stupid? I think it is almost a default build. I tried my local openssl 3.1.0 and the Ubuntu's 3.1.2 openssl. NOTE: Disabling the ZSTD module compression and setting it to None solved the problem and the build was successful. Many thanks. Best regards, Mirsad Todorovac