1 files changed, 7 insertions, 0 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 5beb4b894c5..ef09f0acb1d 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2608,6 +2608,13 @@ static int __init gate_vma_init(void)
 	gate_vma.vm_end = FIXADDR_USER_END;
 	gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
 	gate_vma.vm_page_prot = __P101;
+	/*
+	 * Make sure the vDSO gets into every core dump.
+	 * Dumping its contents makes post-mortem fully interpretable later
+	 * without matching up the same kernel and hardware config to see
+	 * what PC values meant.
+	 */
+	gate_vma.vm_flags |= VM_ALWAYSDUMP;
 	return 0;
 }
 __initcall(gate_vma_init);