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Date: Thu, 29 May 2014 15:31:27 +0930 From: Rusty Russell <rusty@...tcorp.com.au> To: Linus Torvalds <torvalds@...ux-foundation.org>, Dave Chinner <david@...morbit.com>, Jens Axboe <axboe@...nel.dk> Cc: Minchan Kim <minchan@...nel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, linux-mm <linux-mm@...ck.org>, "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Mel Gorman <mgorman@...e.de>, Rik van Riel <riel@...hat.com>, Johannes Weiner <hannes@...xchg.org>, Hugh Dickins <hughd@...gle.com>, "Michael S. Tsirkin" <mst@...hat.com>, Dave Hansen <dave.hansen@...el.com>, Steven Rostedt <rostedt@...dmis.org> Subject: Re: [RFC 2/2] x86_64: expand kernel stack to 16K Linus Torvalds <torvalds@...ux-foundation.org> 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 from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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