Re: [RFC 2/2] x86_64: expand kernel stack to 16K

[Rusty Russell]

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.
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