linux-kernel - Re: Build broken on s390 and ia64 [was: Linux 2.6.32.58]

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Message-ID: <20120309084135.GF25153@1wt.eu>
Date:	Fri, 9 Mar 2012 09:41:35 +0100
From:	Willy Tarreau <w@....eu>
To:	Jiri Slaby <jslaby@...e.cz>
Cc:	Ben Hutchings <ben@...adent.org.uk>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Greg KH <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	torvalds@...ux-foundation.org, stable@...r.kernel.org, lwn@....net,
	Tony Luck <tony.luck@...el.com>,
	Jiri Slaby <jirislaby@...il.com>, raven@...maw.net
Subject: Re: Build broken on s390 and ia64 [was: Linux 2.6.32.58]

On Fri, Mar 09, 2012 at 09:23:32AM +0100, Jiri Slaby wrote:
> On 03/09/2012 07:57 AM, Willy Tarreau wrote:
> > Thanks but now I have a doubt, maybe Jiri and Tony can help. In the
> > commit above, Tony says that CONFIG_COMPAT has been broken for a long
> > time (2008) and nobody apparently uses it. Still, Jiri got a build
> > failure because he used CONFIG_COMPAT. So either there are some valid
> > uses and we should not remove the feature that late in a stable branch,
> > or Jiri only encountered it upon a make allyesconfig then it might
> > be safe to remove it.
> 
> It's a SLE11-SP1 that is using the kernel and has COMPAT on ia64
> enabled. I don't know if it is broken or if we provide support for that.

Thanks for the quick feedback Jiri.

> If you are sure COMPAT is broken on ia64 even in 2.6.32, feel free to
> ban COMPAT completely.

Just checked on the net, it looks like Tony's comment is right as
SLE11 apparently provides ia32el.

So that's OK, I'll apply Ben's patch.

Thanks guys,
Willy

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