Re: Runaway loop with the current git.

From: Alan Cox
Date: Sun Dec 07 2008 - 11:57:50 EST

> > It isn't a problem. It is trying to have hotplug load a suitable driver.
> > This is what is supposed to happen.
> No, it's not. 5:1 is _in_ the kernel, and must not be tried to be
> loaded by the kernel. We need to make /dev/console access return
> -ENODEV if not available, not try to load a module for it.

Hello earth calling, wake up.

The userspace opens major 5 minor 1. The kernel has no driver mapped to
that so the kernel asks user space to load a module of its choice for
major 5 minor 1. What user space does with that is and has always been a
problem for user space.

User space is quite at liberty to go .. 5,1 and I have a serial console
I want to load 8250_pci please.

What it must not do is try and re-open it again and again and again.

You may not assume that a given device load mapping is solely used to
create the most basic device node involved. It isn't that simple. In many
cases a device node translates to a series of module loads of otherwise
apparently unrelated devices.

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