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Re: XFS, 4K stacks, and Red Hat

To: Jens Axboe <axboe@xxxxxxx>
Subject: Re: XFS, 4K stacks, and Red Hat
From: Andi Kleen <ak@xxxxxxx>
Date: Sun, 17 Jul 2005 03:57:00 +0200
Cc: Andi Kleen <ak@xxxxxxx>, Nathan Scott <nathans@xxxxxxx>, linux-xfs@xxxxxxxxxxx
In-reply-to: <20050716191217.GE1568@suse.de>
References: <Pine.LNX.4.58.0507071102460.4766@chaos.egr.duke.edu> <42CD4D38.1090703@xfs.org> <Pine.LNX.4.58.0507071142550.4766@chaos.egr.duke.edu> <20050708043740.GB1679@frodo> <42D3F44B.308@strike.wu-wien.ac.at> <20050713015626.GD980@frodo> <p73eka31mkv.fsf@bragg.suse.de> <20050716191217.GE1568@suse.de>
Sender: linux-xfs-bounce@xxxxxxxxxxx
> Sounds like a possible solution for the problem. 4kb stack is never
> going to be completely enough for some block layer stacking setups.
> Would need some careful work, I don't want to see each and every io
> pushed to a worker for processing and potentially incurring 2 context
> switches per io.

Well, it's better than crashing. Also I think it could be a problem
even with 8k stacks when the stacking setups become more complex.

-Andi


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