The patch titled
x86: srat: do not register nodes beyond e820 map
has been removed from the -mm tree. Its filename was
x86-srat-do-not-register-nodes-beyond-e820-map.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: x86: srat: do not register nodes beyond e820 map
From: David Rientjes <rientjes@xxxxxxxxxx>
"Zhang, Yanmin" <yanmin_zhang@xxxxxxxxxxxxxxx> said:
: Kernel 2.6.30-rc4 panic with boot parameter mem=2G on Nehalem machine.
: The machines has 2 nodes and every node has about 3G memory.
:
: Alex Shi did a good bisect and located the bad patch.
:
: commit dc098551918093901d8ac8936e9d1a1b891b56ed
: Author: Jack Steiner <steiner@xxxxxxx>
: Date: Fri Apr 17 09:22:42 2009 -0500
:
: x86/uv: fix init of memory-less nodes
The mem= option will truncate the memory map at a specified address so
it's not possible to register nodes with memory beyond the e820 upper
bound.
unparse_node() is only called when then node had memory associated with
it, although with the mem= option it is no longer addressable.
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Reported-by: "Zhang, Yanmin" <yanmin_zhang@xxxxxxxxxxxxxxx>
Cc: Jack Steiner <steiner@xxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/mm/srat_64.c | 1 +
1 file changed, 1 insertion(+)
diff -puN arch/x86/mm/srat_64.c~x86-srat-do-not-register-nodes-beyond-e820-map arch/x86/mm/srat_64.c
--- a/arch/x86/mm/srat_64.c~x86-srat-do-not-register-nodes-beyond-e820-map
+++ a/arch/x86/mm/srat_64.c
@@ -361,6 +361,7 @@ static void __init unparse_node(int node
{
int i;
node_clear(node, nodes_parsed);
+ node_clear(node, cpu_nodes_parsed);
for (i = 0; i < MAX_LOCAL_APIC; i++) {
if (apicid_to_node[i] == node)
apicid_to_node[i] = NUMA_NO_NODE;
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
linux-next.patch
cpusets-restructure-the-function-cpuset_update_task_memory_state.patch
cpusets-update-tasks-page-slab-spread-flags-in-time.patch
cpusetmm-update-tasks-mems_allowed-in-time.patch
cpusetmm-update-tasks-mems_allowed-in-time-fix.patch
cpusetmm-update-tasks-mems_allowed-in-time-cleanup.patch
page-allocator-use-a-pre-calculated-value-instead-of-num_online_nodes-in-fast-paths-do-not-override-definition-of-node_set_online-with-macro.patch
mm-setup_per_zone_inactive_ratio-do-not-call-for-int_sqrt-if-not-needed.patch
mm-setup_per_zone_inactive_ratio-fix-comment-and-make-it-__init.patch
memcg-add-file-based-rss-accounting.patch
memcg-add-file-based-rss-accounting-fix-mem_cgroup_update_mapped_file_stat-oops.patch
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