From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail202.messagelabs.com (mail202.messagelabs.com [216.82.254.227]) by kanga.kvack.org (Postfix) with ESMTP id C66128D0039 for ; Thu, 24 Feb 2011 10:15:56 -0500 (EST) Subject: Re: [Bug 29772] New: memory compaction crashed From: Johannes Berg In-Reply-To: <20110224150605.GX15652@csn.ul.ie> References: <20110223134015.be96110b.akpm@linux-foundation.org> <20110223233934.GN15652@csn.ul.ie> <1298537237.3764.17.camel@jlt3.sipsolutions.net> <20110224103706.GR15652@csn.ul.ie> <1298546750.3764.23.camel@jlt3.sipsolutions.net> <20110224150605.GX15652@csn.ul.ie> Content-Type: text/plain; charset="UTF-8" Date: Thu, 24 Feb 2011 16:14:21 +0100 Message-ID: <1298560461.4251.2.camel@jlt3.sipsolutions.net> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Andrew Morton , linux-mm@kvack.org, bugzilla-daemon@bugzilla.kernel.org On Thu, 2011-02-24 at 15:06 +0000, Mel Gorman wrote: > > Possible. I had some graphics issues with X hanging once a while, but > > with all of those I could still ssh in and reboot the machine. > > It could very well be related with the main difference being that > compaction blew up with interrupts disabled taking down the whole > machine. Have you a reproduction case for the X hangs? No, I don't, it just seems to happen every couple of hours. It just happened again while I wasn't even touching the laptop (was reading something else)... > It might also be worth running memtest on the machine just in case but I > find it doubtful that it's the problem. A buggy graphics driver feels > more likely. Are you running anything like compiz? If yes, are the > hangs still reproducible with it disabled? No, I'm not running compiz or any other composition manager. > Thanks. With luck, it'll show up a driver that is corrupting memory. Well, it hung a minute ago, but I couldn't even ssh in any more... Sometimes I can, sometimes I can't. > Ok, good to know. Right now I am leaning towards a buggy graphics driver > or X server is corrupting memory and compaction suffered particularly > badly from it. Yeah, I'm inclined to agree. Thanks for your help. Can we copy the bug to some DRI folks maybe? johannes -- 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-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org