[PATCH] Let SYSVIPC default to 'y'

[PATCH] Let SYSVIPC default to 'y'

[Jesper Juhl]

SYSVIPC is a pretty crucial feature that I doubt very much if anyone 
except embedded people should even consider disabling - it simply 
breaks too much software for a Linux box to really be useful without it, 
for most purposes.
For that reason I find it quite odd that the feature defaults to 'No' 
currently.  I really cannot see any reason why we wouldn't want this to 
default to 'Yes', so this patch changes the default by adding 'default y' 
to Kconfig.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
---

 Kconfig |    1 +
 1 file changed, 1 insertion(+)

diff --git a/init/Kconfig b/init/Kconfig
index ba3a389..023b2b6 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -112,6 +112,7 @@ config SWAP
 
 config SYSVIPC
 	bool "System V IPC"
+	default y
 	---help---
 	  Inter Process Communication is a suite of library functions and
 	  system calls which let processes (running programs) synchronize and

Re: [PATCH] Let SYSVIPC default to 'y'

[Kevin Winchester]

Jesper Juhl wrote:
> SYSVIPC is a pretty crucial feature that I doubt very much if anyone 
> except embedded people should even consider disabling - it simply 
> breaks too much software for a Linux box to really be useful without it, 
> for most purposes.
> For that reason I find it quite odd that the feature defaults to 'No' 
> currently.  I really cannot see any reason why we wouldn't want this to 
> default to 'Yes', so this patch changes the default by adding 'default y' 
> to Kconfig.
> 
> Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
> ---
> 
>  Kconfig |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/init/Kconfig b/init/Kconfig
> index ba3a389..023b2b6 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -112,6 +112,7 @@ config SWAP
>  
>  config SYSVIPC
>  	bool "System V IPC"
> +	default y
>  	---help---
>  	  Inter Process Communication is a suite of library functions and
>  	  system calls which let processes (running programs) synchronize and
> 
> 

I am running up-to-date Kubuntu Hardy Heron, but...

kevin@alekhine:~/linux/linux-2.6$ grep SYSVIPC .config
# CONFIG_SYSVIPC is not set

What software that would be in a standard install would be broken?  I don't seem to notice anything...

Not that I mind the default being changed - I just wonder if things on my box are broken and I just don't know it.

-- 
Kevin Winchester

Re: [PATCH] Let SYSVIPC default to 'y'

[Jesper Juhl]

On 24/04/2008, Kevin Winchester <kjwinchester@gmail.com> wrote:
> Jesper Juhl wrote:
>
> > SYSVIPC is a pretty crucial feature that I doubt very much if anyone
> except embedded people should even consider disabling - it simply breaks too
> much software for a Linux box to really be useful without it, for most
> purposes.
> > For that reason I find it quite odd that the feature defaults to 'No'
> currently.  I really cannot see any reason why we wouldn't want this to
> default to 'Yes', so this patch changes the default by adding 'default y' to
> Kconfig.
> >
<...snip...>
>
>  I am running up-to-date Kubuntu Hardy Heron, but...
>
>  kevin@alekhine:~/linux/linux-2.6$ grep SYSVIPC .config
>  # CONFIG_SYSVIPC is not set
>
>  What software that would be in a standard install would be broken?  I don't
> seem to notice anything...
>
>  Not that I mind the default being changed - I just wonder if things on my
> box are broken and I just don't know it.
>

Well,
  DOSEmu doesn't work without it.
  SysOrb (http://www.sysorb.com/) doesn't work without it AFAIK.
  IIRC, X had trouble in the past without it.
  Anything that uses SysV shared memory, SysV message passing
(msgget(), msgsnd() etc..),
  SysV semaphores (semget() etc), will have trouble.
  In general, System V IPC is just used by many different programs...
Perhaps not any you run,
  but it is pretty widely used.

-- 
Jesper Juhl <jesper.juhl@gmail.com>
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