Re: [PATCH] allow kernel module exclusion on load

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On Sun, May 13, 2007 at 10:04:20PM +0400, Michael Tokarev wrote:
> There are two issues (IMHO anyway), both are userspace.
> 
> First is the ability blacklist the given module from bootloader.
> My initramfs has it since the beginning - it allows a noload=xxx
> paramerer (comma-separated list of module patterns, cumulative),
> for exactly this purpose.  I implemented modprobe in shell (not
> using a binary from module-init-tools) for initramfs (it's some
> 20 lines of shell code).  Because of exactly that reason - on
> certain systems i had a problem with certain drivers, resulting
> in boot failures.  Later on, this set of modules gets transformed
> into a modprobe blacklist list.  It's trivial to do.
> 
> And second is what to do with direct insmod invocations in minimal
> embedded system startup sequence.  Well, minimal it or not, but
> shell is present anyhow, so I don't see any problem with that,
> either...

Yes, I guess a shell script can always look at /proc/cmdline with
relatively minimal complexity.

Anyway, it all boils down to whether there's a developer demand 
for a userspace-independent way of blacklisting modules. Let's see 
if more people post their opinion so we can determine.

-- 
Dan Aloni
XIV LTD, http://www.xivstorage.com
da-x (at) monatomic.org, dan (at) xiv.co.il
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