From: Christoph Hellwig <hch@xxxxxx>
If we need a NUMA crossing a mids a contiguous memory range
we split the range at NUMA boundary so to produce two pmemX
devices. We do not like 2 NUMA IDs at the same device.
TODO: What happens with real type-12 NvDIMM the BIOS splits
these ranges?
Christoph I please need this patch for now. I have booting
problems on some machines, when a contiguous pmem range crosses
a NUMA boundary.
Signed-off-by: Boaz Harrosh <boaz@xxxxxxxxxxxxx>
---
arch/x86/kernel/e820.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 4bd525a..a098c74 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -346,7 +346,7 @@ int __init sanitize_e820_map(struct e820entry *biosmap, int max_nr_map,
* continue building up new bios map based on this
* information
*/
- if (current_type != last_type) {
+ if (current_type != last_type || current_type == E820_PRAM) {
if (last_type != 0) {
new_bios[new_bios_entry].size =
change_point[chgidx]->addr - last_addr;
--
1.9.3
--
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