Re: [PATCH] mm: add the block to the tail of the list in expand()

On 08/05/2015 12:54 AM, Xishi Qiu wrote:

I add some debug code like this, but it doesn't trigger the dump_stack().

...

+         if (!list_empty(&area->free_list[migratetype])) {
+                 printk("expand(), the list is not empty\n");
+                 dump_stack();
+         }
+

That will probably not trigger unless you have allocations that are
falling back and converting other pageblocks from other migratetypes.

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