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Date: Fri, 24 Feb 2012 08:57:37 +0200 (EET) From: Pekka Enberg <penberg@...nel.org> To: David Rientjes <rientjes@...gle.com> cc: Rafael Aquini <aquini@...hat.com>, linux-mm@...ck.org, Randy Dunlap <rdunlap@...otime.net>, Christoph Lameter <cl@...ux-foundation.org>, Matt Mackall <mpm@...enic.com>, Rik van Riel <riel@...hat.com>, Josef Bacik <josef@...hat.com>, linux-kernel@...r.kernel.org Subject: Re: [PATCH] oom: add sysctl to enable slab memory dump On Thu, 23 Feb 2012, David Rientjes wrote: > > Great! So, why not letting the time tell us if this feature will be obsoleted > > or not? I'd rather have this patch obsoleted by another one proven better, than > > just stay still waiting for something that might, or might not, happen in the > > future. > > Because (1) you're adding a sysctl that we don't want to obsolete and > remove from the kernel that someone will come to depend on and then have > to find an alternative solution like /dev/mem_notify, and (2) people parse > messages like this that are emitted to the kernel log that we don't want > to break in the future. > > So NACK on this approach. Right. We should drop the sysctl and make it into a kernel command line debugging option instead. Pekka -- 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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