On 26/01/15 12:09, Sascha Hauer wrote:
(Adding Alexander Aring)
@@ -107,8 +106,8 @@ static int request_memtest_regions(struct list_head *list)
r = list_last_entry(&bank->res->children,
struct resource, sibling);
start = PAGE_ALIGN(r->end);
still here we have overflow.
Last region (stack) on 4GB systems ends on 0xfffffff7. So aligned up,
start=0x00000000.
After that
- end = PAGE_ALIGN_DOWN(bank->res->end) - 1;
- size = end - start + 1;
+ end = bank->res->end;
+ size = PAGE_ALIGN_DOWN(end - start + 1);
if (start < end) {
This check detects that there are some space after last region
(start=0x00000000) till end of bank (0xffffffff) and then
ret = alloc_memtest_region(list, start, size);
if (ret < 0)
fails to allocate region from 0x00000000 for size 0x00000000.
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