linux-kernel - Re: [uml-devel] uml doesn't work on 2.6.24-rc2

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Date:	Fri, 23 Nov 2007 11:54:41 +0100
From:	Jiri Olsa <olsajiri@...il.com>
To:	Karol Swietlicki <magotari@...il.com>
CC:	Jeff Dike <jdike@...toit.com>, linux-kernel@...r.kernel.org,
	user-mode-linux-devel@...ts.sourceforge.net,
	Miklos Szeredi <miklos@...redi.hu>
Subject: Re: [uml-devel] uml doesn't work on 2.6.24-rc2

Hi,

after applying following changes, the mainline is working for me.

Jiri Olsa


diff --git a/arch/um/Kconfig.i386 b/arch/um/Kconfig.i386
index e0ac74e..234fcb4 100644
--- a/arch/um/Kconfig.i386
+++ b/arch/um/Kconfig.i386
@@ -8,6 +8,13 @@ config UML_X86
 	bool
 	default y
 
+config X86_32
+	bool
+	default y
+
+config RWSEM_XCHGADD_ALGORITHM
+	def_bool y
+
 config 64BIT
 	bool
 	default n
diff --git a/arch/um/Makefile b/arch/um/Makefile
index 31999bc..ba6813a 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -168,7 +168,7 @@ ifneq ($(KBUILD_SRC),)
 	$(Q)mkdir -p $(objtree)/include/asm-um
 	$(Q)ln -fsn $(srctree)/include/asm-$(HEADER_ARCH) include/asm-um/arch
 else
-	$(Q)cd $(TOPDIR)/include/asm-um && ln -fsn ../asm-$(SUBARCH) arch
+	$(Q)cd $(TOPDIR)/include/asm-um && ln -fsn ../asm-$(HEADER_ARCH) arch
 endif
 
 $(objtree)/$(ARCH_DIR)/include:

Karol Swietlicki wrote:
> On 23/11/2007, Jeff Dike <jdike@...toit.com> wrote:
>> On Thu, Nov 22, 2007 at 07:08:47PM +0100, Miklos Szeredi wrote:
>>> Thanks.  My other problem is (probably you are aware) that recent -mm
>>> kernels don't compile for UML.
>> The patch below fixes the build for rc3-mm1 for me.
>>
>>                                 Jeff
> 
> There must be something more to it. I got a clean -mm and it still
> does not build after applying the patch. It does have less problems,
> but it still won't build. I tried to get it to compile for half an
> hour, but considering the amount of sleep I got (and my experience),
> there is no surprise that I failed miserably. After fixing the
> complaint about a structure not having a 'x86' member, it died in the
> linker complaining about stuff relating to rwsem.h.
> 
> Karol Swietlicki
> 
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