Reduce boot time console messages?

[Valdis.Kletnieks at vt.edu]

On Mon, 05 Aug 2013 11:07:26 +0800, Woody Wu said:

> Valdis, thank you very much.  I just passed loglevel=7 as kernel command
> line and hope it can suspress KERN_DEBUG messages printed out to console
> at boot time. But, it seems not work. A lot of debug level messages from
> jffs2 module still print out. I will go to check where is wrong.

Weird.  Do the "debugging" messages actually have the string '[JFFS2 DBG]'
in them?  If not, then they're some *other* messages from jffs2.

Also, double-check you don't have ignore_loglevel in the kernel command line.
(This one can be tricky - do a 'cat /proc/cmdline' once you're booted to see
what you really had - there's support for compiling in all/part of a commandline
to work around buggy boot loaders that only support insanely short parameter
lists - so what your  boot loader said it passed to the kernel may not be
what the kernel used).
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