On Thu, Aug 23, 2012 at 05:41:49PM -0500, Mark Felder wrote: > On Thu, 23 Aug 2012 12:37:04 -0500, Walter Hurry <walterhu...@gmail.com> > wrote: > > >One thing (welcome, but puzzling) which surprised me was that my > >vboxguest.ko did *not* need to be recompiled. How did the upgrade manage > >that? > > FreeBSD has a stable ABI unlike Linux. A kernel module compiled for any > 9.x release should work on any other 9.x release without needing to be > recompiled. This is a statement that is false at least two times, if not three. This was a question about Kernel Binary Inteface, not Application Binary Interface.
First, we have zero guarantees about ability to load or have a system survive loading of the module compiled against the later kernel. Second, we do not have real KBI definition, and KBI stability is managed only ad-hock. E.g. VFS quite often breaks, while network or disk controllers drivers are usually fine. YMMV. Snobby false statements hurt the project.
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