Re: [RETRY] [PATCH] load_module: no BUG if module_subsys uninitialized

From: Ed Swierk
Date: Wed Sep 27 2006 - 15:10:44 EST

On 9/26/06, Greg KH <greg@xxxxxxxxx> wrote:
So, with this patch the module will still not be loaded properly, right?
Well, I guess at least we don't oops... ok.

Correct. sys_init_module() ends up returning an error to
/sbin/modprobe, which trickles down to request_module() if it was
invoked via kmod. The module doesn't get loaded, but at least the
error message states which module it is, and as you say, at least we
don't oops.

I think that not oopsing is pretty important in a case where a goofy
but technically valid configuration (compiling Unix sockets as a
module, and trying to boot with a rootfs containing a version of
/sbin/hotplug that requires Unix sockets) collides with an obscure
kernel implementation detail (initcall ordering).

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