[Fedora-xen] Re: [Xen-ia64-devel] fedora-xen-ia64 first pass

[Akio Takebe]

Hi, Aron

Thank you for your help.
I can make RPMS/ia64/xen-3.0.2-4.ia64.rpm.

fedora-xen-ia64/RPMS/ia64/xen-3.0.2-4.ia64.rpm includes all tools of xen.
(don't includes xen(hypervisor) and domain's kernel)

But I cannot make fedora-kernel-ia64 yet.

=======================
  gcc -Wp,-MD,arch/ia64/kernel/.irq_lsapic.o.d  -nostdinc -isystem
/usr/lib/gcc/ia64-redhat-linux/4.1.0/include -D__KERNEL__ -Iinclude  -include
include/linux/autoconf.h -DHAVE_W
ORKING_TEXT_ALIGN -DHAVE_MODEL_SMALL_ATTRIBUTE -DHAVE_SERIALIZE_DIRECTIVE  -Wall -Wundef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Os -fomit-frame-poin
ter -g -pipe  -ffixed-r13 -mfixed-range=f12-f15,f32-f127 -falign-functions=32
-frename-registers -fno-optimize-sibling-calls -Wdeclaration-after-statement
-Wno-pointer-sign   -mc
onstant-gp -D"KBUILD_STR(s)=#s"
-D"KBUILD_BASENAME=KBUILD_STR(irq_lsapic)" 
-D"KBUILD_MODNAME=KBUILD_STR(irq_lsapic)" -c -o
arch/ia64/kernel/.tmp_irq_lsapic.o arch/ia64/kernel/ir
q_lsapic.c
mm/page_alloc.c: In function 'alloc_node_mem_map':
mm/page_alloc.c:2143: error: 'MAX_ORDER_NR_PAGES' undeclared (first use in this
function)
mm/page_alloc.c:2143: error: (Each undeclared identifier is reported only once
mm/page_alloc.c:2143: error: for each function it appears in.)
make[1]: *** [mm/page_alloc.o] Error 1
make: *** [mm] Error 2
make: *** Waiting for unfinished jobs....
=======================

This error is caused by SOURCES/linux-2.6-xen-ia64-10022.patch
MAX_ORDER_NR_PAGES is not defined.
What does this patch mean?
=======================
@@ -2124,14 +2127,22 @@ static void __init alloc_node_mem_map(st
 #ifdef CONFIG_FLAT_NODE_MEM_MAP
        /* ia64 gets its own node_mem_map, before this, without bootmem */
        if (!pgdat->node_mem_map) {
-               unsigned long size;
+               unsigned long size, start, end;
                struct page *map;
 
-               size = (pgdat->node_spanned_pages + 1) * sizeof(struct page);
+               /*
+                * The zone's endpoints aren't required to be MAX_ORDER
+                * aligned but the node_mem_map endpoints must be in order
+                * for the buddy allocator to function correctly.
+                */
+               start = pgdat->node_start_pfn & ~(MAX_ORDER_NR_PAGES - 1);
+               end = pgdat->node_start_pfn + pgdat->node_spanned_pages;
+               end = ALIGN(end, MAX_ORDER_NR_PAGES);
+               size =  (end - start) * sizeof(struct page);
                map = alloc_remap(pgdat->node_id, size);
                if (!map)
                        map = alloc_bootmem_node(pgdat, size);
-               pgdat->node_mem_map = map;
+               pgdat->node_mem_map = map + (pgdat->node_start_pfn - start);
        }
 #ifdef CONFIG_FLATMEM
        /*
===================================

I'm not clear about directory construction.
What do each directory mean?
I want to know the following directory's meaning.

# ls -F fedora-kernel-ia64/BUILD/kernel-2.6.16/
Config.mk  extract.pub  kernel.pub  kernel.sec  linux-2.6.16.ia64/  
pubring.gpg  random_seed  secring.gpg  vanilla/  xen/  xen-10022/

Are kernels of domain0/domainU made at linux-2.6.16.ia64?
If so, each linux-2.6.16.ia64 must be remade at each building time.
Am I right?

Best Regards,

Akio Takebe