On Tue, 29 Mar 2016, Miroslav Benes wrote: > > 1) Jessica proposed using the Arch-independent patchset ensure that > > livepatch > > finishes writing its relas before apply_paravirt() is called. However, this > > introduces a bit more arch-dependent code. It would be useful to see if > > other > > arches are affected by this as well. > > I think this is the way to go. Provided we have Jessica's two patch sets > applied (arch-independent and notifiers removal) there are two options. We > either move a call to klp_coming_module() somewhere before > module_finalize(), or we move the problematic parts of module_finalize() > to the end of load_module() (on x86 it is probably module_finalize() as a > whole). The former is almost impossible because of the dependencies > (ftrace and such), the latter should be doable (with very careful check we > won't break anything).
Agreed; I think we should be safe applying all the alternatives (with paravirt being really just a special case of those) to the coming module at the very last phase; they really are required only during runtime, but nothing else should be depending on them. Right? If anyone is able to come up with and counter-example, please speak up :) Thanks, -- Jiri Kosina SUSE Labs
