[PATCH]: x86-64 system crashes when no memory populating Node 0

From: James Puthukattukaran
Date: Fri Dec 22 2006 - 13:38:41 EST


I have a 4 socket AMD Operton system. The 2.6.18 kernel I have crashes when there is no memory in node0.

--James


diff -uNr linux-2.6.18-orig/arch/x86_64/kernel/aperture.c linux-2.6.18-new/arch/x86_64/kernel/aperture.c
--- linux-2.6.18-orig/arch/x86_64/kernel/aperture.c 2006-09-19 23:42:06.000000000 -0400
+++ linux-2.6.18-new/arch/x86_64/kernel/aperture.c 2006-12-20 19:43:42.000000000 -0500
@@ -38,7 +38,6 @@

static u32 __init allocate_aperture(void)
{
- pg_data_t *nd0 = NODE_DATA(0);
u32 aper_size;
void *p;

@@ -52,12 +51,13 @@
* Unfortunately we cannot move it up because that would make the
* IOMMU useless.
*/
- p = __alloc_bootmem_node(nd0, aper_size, aper_size, 0);
+
+ p = __alloc_bootmem(aper_size, aper_size, 0);
if (!p || __pa(p)+aper_size > 0xffffffff) {
printk("Cannot allocate aperture memory hole (%p,%uK)\n",
p, aper_size>>10);
if (p)
- free_bootmem_node(nd0, __pa(p), aper_size);
+ free_bootmem(__pa(p), aper_size);
return 0;
}
printk("Mapping aperture over %d KB of RAM @ %lx\n",

-
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