From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 25 Sep 2000 16:13:58 +0200 From: Andrea Arcangeli Subject: Re: [patch] vmfixes-2.4.0-test9-B2 Message-ID: <20000925161358.J22882@athlon.random> References: <20000925155650.F22882@athlon.random> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: ; from mingo@elte.hu on Mon, Sep 25, 2000 at 03:57:31PM +0200 Sender: owner-linux-mm@kvack.org Return-Path: To: Ingo Molnar Cc: Linus Torvalds , Rik van Riel , Roger Larsson , MM mailing list , linux-kernel@vger.kernel.org List-ID: On Mon, Sep 25, 2000 at 03:57:31PM +0200, Ingo Molnar wrote: > i had yesterday - those were simple VM deadlocks. I dont see any deadlocks Definitely. They can't explain anything about the VM deadlocks. I was _only_ talking about the blkdev hangs that caused you to unplug the queue at each reschedule in tux and that Eric reported me for the SG driver (and I very much hope that with EXCLUSIVE gone away and the wait_on_* fixed those hangs will go away because I don't see anything else wrong at this moment). > but one of these two fixes could explain the slowdown i saw on and off for > quite some time, seeing very bad read performance occasionally. (do you > remember my sched.c tq_disc hack?) Exactly, that's the only thing I was talking about in this subthread. Andrea -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux.eu.org/Linux-MM/