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From: "Parag Warudkar" <parag.warudkar@gmail.com>
To: thunder7@xs4all.nl
Cc: "akpm@osdl.org" <akpm@osdl.org>,
	ak@suse.de, linux-kernel@vger.kernel.org
Subject: Re: 2.6.20-rc6-mm1: linker error with arch_setup_additional_pages
Date: Sun, 28 Jan 2007 17:44:26 -0500	[thread overview]
Message-ID: <82e4877d0701281444h333c581fr66d60cca9d03749d@mail.gmail.com> (raw)
In-Reply-To: <82e4877d0701280834n75d3d0d3ja7a35d5ea0e7fa4f@mail.gmail.com>

[-- Attachment #1: Type: text/plain, Size: 1197 bytes --]

On 1/28/07, Parag Warudkar <parag.warudkar@gmail.com> wrote:
> >CONFIG_BINFMT_ELF=y
> ># CONFIG_BINFMT_MISC is not set
> ># CONFIG_IA32_EMULATION is not set
>
> Hm Ok. That's explainable. You don't have CONFIG_IA32_EMULATION set
> and arch_setup_additional pages is only defined/exported in
> syscall32.c which won't be built in your case. (It should go away if
> you set CONFIG_IA32_EMULATION).
>

I think the easy and correct fix for this situation is defining
CONFIG_ARCH_HAS_SETUP_ADDITIONAL_PAGES on x86_64 only if
IA32_EMULATION is defined. (Because x86_64 proper doesn't seem to
require arch_setup_additional_pages() only IA32 emulation requires
it.)

The patch below should fix it. (Please use attachment - less chance of
whitespace issues. Sorry no control over mail client atm)

Signed-off-by: Parag Warudkar <parag.warudkar@gmail.com>

--- linux-2.6.20-rc6-mm1/arch/x86_64/Kconfig.orig	2007-01-28
17:32:09.000000000 -0500
+++ linux-2.6.20-rc6-mm1/arch/x86_64/Kconfig	2007-01-28 17:32:48.000000000 -0500
@@ -405,7 +405,7 @@
 config ARCH_HAS_SETUP_ADDITIONAL_PAGES
 	bool
 	default y
-	depends on X86_64
+	depends on X86_64 && IA32_EMULATION

 config OUT_OF_LINE_PFN_TO_PAGE
 	def_bool y

[-- Attachment #2: x86_64-Kconfig-fix-setup_additional_pages.patch --]
[-- Type: text/x-patch, Size: 351 bytes --]

--- linux-2.6.20-rc6-mm1/arch/x86_64/Kconfig.orig	2007-01-28 17:32:09.000000000 -0500
+++ linux-2.6.20-rc6-mm1/arch/x86_64/Kconfig	2007-01-28 17:32:48.000000000 -0500
@@ -405,7 +405,7 @@
 config ARCH_HAS_SETUP_ADDITIONAL_PAGES
 	bool
 	default y
-	depends on X86_64
+	depends on X86_64 && IA32_EMULATION
 
 config OUT_OF_LINE_PFN_TO_PAGE
 	def_bool y

  reply	other threads:[~2007-01-28 22:44 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-28 16:34 Parag Warudkar
2007-01-28 22:44 ` Parag Warudkar [this message]
2007-01-29  2:51   ` Andi Kleen
2007-01-29  8:59     ` Andrew Morton
  -- strict thread matches above, loose matches on Subject: below --
2007-01-28  7:49 2.6.20-rc6-mm1 Andrew Morton
2007-01-28 14:59 ` 2.6.20-rc6-mm1: linker error with arch_setup_additional_pages thunder7

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