On Thu, May 29, 2014 at 12:26 AM, Rusty Russell <rusty@xxxxxxxxxxxxxxx> wrote: > Results (x86-64, Minchan's .config): > > gcc 4.8.2: virtio_blk: stack used = 392 > gcc 4.6.4: virtio_blk: stack used = 528 I wonder if that's just random luck (although 35% more stack use seems to be bigger than "random" - that's quite a big difference), or whether the gcc guys are aware of having fixed some major stack spill issue. But yeah, Minchan uses gcc 4.6.3 according to one of his emails, so _part_ of his stack smashing is probably due to compiler version. Linus -- 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>