On Fri, 13 Nov 2015 16:13:46 +0100 "Andreas Krebbel1" <Andreas.Krebbel@xxxxxxxxxx> wrote: > this appears to be the result of aligning struct page to more than 8 bytes > and putting it onto the stack - wich is only 8 bytes aligned. The > compiler has to perform runtime alignment to achieve that. It allocates > memory using *alloca* and does the math with the returned pointer. Our > dynamic stack allocation option basically only checks if there is an > alloca user. I can confirm that this is caused by the struct page alignment, if I force HAVE_ALIGNED_STRUCT_PAGE=n the warning vanishes. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>