Messages in this thread Patch in this message | | | From | Zhenzhong Duan <> | Subject | [PATCH] xen: fix the check of e_pfn in xen_find_pfn_range | Date | Wed, 2 Sep 2015 18:51:36 +0800 |
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On some numa system, after dom0 up, we see below warning even if there are enough pfn ranges could be used for remapping. "Unable to find available pfn range, not remapping identity pages"
Fix it to avoid getting a memory region of zero size in xen_find_pfn_range.
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com> --- arch/x86/xen/setup.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index a3a7546..c11f6b2 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -178,7 +178,7 @@ static unsigned long __init xen_find_pfn_range( e_pfn = PFN_DOWN(entry->addr + entry->size); /* We only care about E820 after this */ - if (e_pfn < *min_pfn) + if (e_pfn <= *min_pfn) continue; s_pfn = PFN_UP(entry->addr); -- 1.7.3
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