From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 25 Sep 2000 16:08:38 +0200 From: Jens Axboe Subject: Re: [patch] vmfixes-2.4.0-test9-B2 Message-ID: <20000925160838.R26339@suse.de> References: <20000925155650.F22882@athlon.random> <20000925161358.J22882@athlon.random> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20000925161358.J22882@athlon.random>; from andrea@suse.de on Mon, Sep 25, 2000 at 04:13:58PM +0200 Sender: owner-linux-mm@kvack.org Return-Path: To: Andrea Arcangeli Cc: Ingo Molnar , Linus Torvalds , Rik van Riel , Roger Larsson , MM mailing list , linux-kernel@vger.kernel.org List-ID: On Mon, Sep 25 2000, Andrea Arcangeli 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). The sg problem was different. When sg queues a request, it invokes the request_fn to handle it. But if the queue is currently plugged, the scsi_request_fn will not do anything. -- * Jens Axboe * SuSE Labs -- 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/