linux-kernel - Re: removed sysctl system call

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Message-ID: <p73u02jzot0.fsf@verdi.suse.de>
Date:	05 Oct 2006 00:41:47 +0200
From:	Andi Kleen <ak@...e.de>
To:	"Jesper Juhl" <jesper.juhl@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: removed sysctl system call - documentation and timeline

"Jesper Juhl" <jesper.juhl@...il.com> writes:

> Hi,
> 
> With recent kernels I'm getting a lot of warnings about programs using
> the removed sysctl syscal.
> 
> Examples (after 5 min of uptime here) :
> root@...gon:/home/juhl# dmesg | grep "used the removed sysctl system
> call" | sort | uniq
> warning: process `dd' used the removed sysctl system call
> warning: process `ls' used the removed sysctl system call
> warning: process `touch' used the removed sysctl system call
> 
> and more can be found...

They all only use a single sysctl (kernel/version). IMHO that
one should be just emulated and the rest -ENOSYSed. There used
to be a slightly buggy patch for that in tree.

I think that would give all the advantages (dropping of the 
numerical name space) with 99+% backwards compatibility

-Andi
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