linux-kernel - Re: NAK (bashizm in the /bin/sh script): [PATCH v3] doc/oops-tracing: add Code: decode info

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Date:	Sat, 23 Jun 2007 17:23:13 +0200
From:	Oleg Verych <olecom@...wer.upol.cz>
To:	Andi Kleen <ak@...e.de>
Cc:	Arkadiusz Miskiewicz <arekm@...en.pl>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	lkml <linux-kernel@...r.kernel.org>, akpm@...ux-foundation.org
Subject: Re: NAK (bashizm in the /bin/sh script): [PATCH v3] doc/oops-tracing: add Code: decode info

On Sat, Jun 23, 2007 at 03:17:27PM +0200, Andi Kleen wrote:
> On Saturday 23 June 2007 13:09, Arkadiusz Miskiewicz wrote:
> > On Saturday 23 of June 2007, Andi Kleen wrote:
> > > Here's a nickel. Get yourself a real shell.
> >
> > POSIX compilant shell isn't real shell?
> 
> In this case it's not good enough. We're not writing POSIX portable software 
> here, but Linux software where /bin/sh is /bin/bash. Similar to the Linux 
> kernel which is not written in portable ISO C.

Technical reply about my disagreement.

It's a problem more like "it's broken, but somebody use this in the
source tree". Good example is if "someone uses page_mapping on a slab
page" and have oops with SLUB:

Message-ID: <Pine.LNX.4.64.0706221531520.19704@...roedinger.engr.sgi.com>
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/546758>

Thus, if one doesn't know what `#!/bin/sh' really is, don't
"syntax error" with possible another sh[ell]. In the Linux build system
$(CONFIG_SHELL) currently is bash, but that's only in the kbuild *now*.

Hope that clarifies.
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