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-rw-r--r--xen/arch/x86/x86_64/traps.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/xen/arch/x86/x86_64/traps.c b/xen/arch/x86/x86_64/traps.c
index 1cc977c757..0316d7c4ac 100644
--- a/xen/arch/x86/x86_64/traps.c
+++ b/xen/arch/x86/x86_64/traps.c
@@ -170,6 +170,8 @@ void show_page_walk(unsigned long addr)
l1_pgentry_t l1e, *l1t;
printk("Pagetable walk from %016lx:\n", addr);
+ if ( !is_canonical_address(addr) )
+ return;
l4t = map_domain_page(mfn);
l4e = l4t[l4_table_offset(addr)];