[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] x86: make pxm_to_node() return sane values when disabling NUMA internally
Otherwise, pass-through code may call memory allocation functions with invalid node IDs, causing the allocations to fail. Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx> --- 2010-04-13.orig/xen/arch/x86/srat.c 2010-03-08 22:36:09.000000000 +0100 +++ 2010-04-13/xen/arch/x86/srat.c 2010-04-14 14:28:17.000000000 +0200 @@ -25,7 +25,7 @@ static struct acpi_table_slit *__read_mo static nodemask_t nodes_parsed __initdata; static nodemask_t nodes_found __initdata; static struct node nodes[MAX_NUMNODES] __initdata; -static u8 __read_mostly pxm2node[256] = { [0 ... 255] = 0xff }; +static u8 __read_mostly pxm2node[256] = { [0 ... 255] = NUMA_NO_NODE }; static int num_node_memblks; @@ -112,6 +112,8 @@ static __init void bad_srat(void) acpi_numa = -1; for (i = 0; i < MAX_LOCAL_APIC; i++) apicid_to_node[i] = NUMA_NO_NODE; + for (i = 0; i < ARRAY_SIZE(pxm2node); i++) + pxm2node[i] = NUMA_NO_NODE; } #ifdef CONFIG_X86_64 Attachment:
x86-bad-srat-clear-pxm2node.patch _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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