On Thu, Jan 24, 2013 at 11:02:57AM -0500, Josh Boyer wrote: > On Thu, Jan 24, 2013 at 10:58 AM, Adrian Reber <adrian@xxxxxxxx> wrote: > > On Wed, Jan 23, 2013 at 03:37:46PM -0500, Josh Boyer wrote: > >> On Wed, Jan 23, 2013 at 2:35 PM, Jaroslav Reznik <jreznik@xxxxxxxxxx> wrote: > >> > To offer the checkpoint/restore functionality the package crtools has been > >> > imported into Fedora and changes are still necessary to the kernel RPM. > >> > >> The CRIU page doesn't say you need CONFIG_NAMESPACES enabled to use CRIU. > >> Also, there is nothing in the kernel Kconfig dependencies that would > >> select or require that set to turn on CONFIG_CHECKPOINT_RESTORE. Could > >> you be more explicit as to why you need namespaces turned on? > > > > CONFIG_NAMESPACES took me some time to find out. I actually need > > CONFIG_CHECKPOINT_RESTORE which requires CONFIG_EXPERT. I also need (for > > restore) CONFIG_PID_NS which is enabled in config-generic > > Why does restore need PID_NS? The kernel doesn't think it does, so is > this a requirement based on the userspace tooling? This is a userpace requirement. I can checkpoint without PID_NS, but only restore with PID_NS. > > config-generic:CONFIG_PID_NS=y > > > > Looking at the config of a built kernel I see that it is not enabled. > > Looking at init/Kconfig I see that CONFIG_PID_NS is only enabled if > > CONFIG_NAMESPACES is enabled. > > Right. > > > CONFIG_NAMESPACES seems to be required to make all those activated _NS > > options actually enabled: > > > > config-generic:CONFIG_PID_NS=y > > config-generic:CONFIG_UTS_NS=y > > config-generic:CONFIG_IPC_NS=y > > config-generic:CONFIG_NET_NS=y > > Those might be doable. I take it you very clearly don't need USER_NS, > right? Because that option is not going to be enabled at the expense of > the things I listed. I only need PID_NS (and therefore NAMESPACES). All the other options and USER_NS are not required. Adrian -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
