On Apr 23, Akemi Yagi wrote: > SL's kernels are simply rebuilt from the upstream (RHEL) kernel > source. So, it was Red Hat to decide to update the igxbe driver to > 4.0.1. I suspect it was backported from the latest stable kernel from > kernel.org (4.0). Thanks for that very quick answer! Any idea how I can look at the kernel sources (and hence the driver code in question)? This: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/7Server/en/os/README sends me to a page, where rpms/kernel rpms/kernel.git rpms//kernel rpms//kernel.git rpms/kernel/ rpms/kernel.git/ seem to be closest to what I need. But they end up showing the same contents and just a bogus multiplicity or misconfiguration of that server. However, the branches there ("c7" for CentoOS7) do not contain any substantial kernel sources, just some configuration stuff. I am lost. Any help will be appreciated. Dirk PS: I am likely to get this wrong, but: " - The kernel tarball inside the srpm is created from a git tree that is only accessible to Red Hat engineers." according to http://lwn.net/Articles/430098/ Is SL really based on an "obfuscated" kernel tarball?????