Re: 2.4.0 + iproute2

[Werner Almesberger]

Andi Kleen wrote:
> Configuring a complex subsystem like CBQ which has dozens of parameters
> with only a single ed'esque error message (EINVAL) when something goes
> wrong is just bad.

The underlying problem is of course that all those sanity checks should
be done in user space, not in the kernel.

(See also ftp://icaftp.epfl.ch/pub/people/almesber/slides/tmp-tc.ps.gz
The bitching starts on slide 11, some ideas for fixing the problem on
slide 16, but heed the warning on slide 15.)

Besides that, I agree that we have far too many EINVALs in the kernel.
Maybe we should just record file name and line number of the EINVAL
in *current and add an eh?(2) system call ;-)

- Werner

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