Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6

[~andy/linux] / mm / memory.c

diff --git a/mm/memory.c b/mm/memory.c
index 5beb4b894c5aec3995df76f5e93c1ffc7bfd8bd4..ef09f0acb1d8efc25fed1a524cada7cab48d40ef 100644 (file)
--- 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);