Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> writes: > Well, we've definitely have had some issues with deeper callchains > with md, but I suspect virtio might be worse, and the new blk-mq code > is lilkely worse in this respect too. I looked at this; I've now got a couple of virtio core cleanups, and I'm testing with Minchan's config and gcc versions now. MST reported that gcc 4.8 is a better than 4.6, but I'll test that too. Cheers, Rusty. -- 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>