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Date: Wed, 27 Jan 2010 17:04:08 -0800 (PST) From: David Rientjes <rientjes@...gle.com> To: Mark Lord <kernel@...savvy.com> cc: Mel Gorman <mel@....ul.ie>, Linux Kernel <linux-kernel@...r.kernel.org>, Hugh Dickins <hugh.dickins@...cali.co.uk> Subject: Re: 2.6.32.5 regression: page allocation failure. order:1, On Wed, 27 Jan 2010, Mark Lord wrote: > > There was one bug related to MIGRATE_RESERVE that might be affecting > > you. It reported as impacting swap-orientated workloads but it could > > easily affect drivers that depend on high-order atomic allocations. > > Unfortunately, the fix is not signed-off yet but I expect it to make its > > way towards mainline when it is. > > > > Here is the patch with a slightly-altered changelog. Can you test if it > > makes a difference please? > .. > > We don't like to reboot our 24/7 server very often, > and certainly not for debugging buggy kernels. > > It's rock solid again with 2.6.31.12 on it now. > Is there something specific about the workload that makes it easily reproducible? Are you saying that 2.6.31.12 is "rock solid" because it has survived a certain workload that caused these page allocation failures with 2.6.32.5, or simply because it has a longer uptime and hasn't shown a problem? It would be very helpful to describe the load so that we can attempt to reproduce it locally without a sacrifice to your server. -- 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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