On Fri, 10 Nov 2023 00:10:13 +0800 Zhenlei Huang <z...@freebsd.org> wrote:
> Hi, > > This is *NOT* joking. > > While working on https://reviews.freebsd.org/D42527 I realized the > module kernel also has userrefs, that is to say, userland can request > to unload kernel, aka `kldunload kernel`. > > This is interesting. Well no doubt that the loader can unload kernel. > Then after the kernel is loaded and has been initialized (SYSINIT), how > should it behave when it get an unload request? > > I'm proposing https://reviews.freebsd.org/D42530 to do not allow unloading > the kernel. It is by intuition. > > What do you think ? > > > Best regards, > Zhenlei Possibly too paranoid, but the summery on D42530 looks a bit confusing. Would better to be 'The userland or kernel shall not unload the module "kernel".' or 'The userland or kernel shall not unload the "kernel" module.' . The original SUMMARY could be read as, in meaning, 'The userland or kernel shall not unload *.ko.' *.ko is sometimes called as "kernel module", although it stants for "kernel object". -- Tomoaki AOKI <junch...@dec.sakura.ne.jp>
