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Date: Mon, 12 Dec 2011 09:33:44 -0800 From: Greg KH <greg@...ah.com> To: Daniel Baluta <dbaluta@...acom.com> Cc: Eric Dumazet <eric.dumazet@...il.com>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, adobriyan@...il.com Subject: Re: [PATCH] kref: add function for reading kref value On Mon, Dec 12, 2011 at 06:42:59PM +0200, Daniel Baluta wrote: > On Mon, Dec 12, 2011 at 5:41 PM, Eric Dumazet <eric.dumazet@...il.com> wrote: > > Le lundi 12 décembre 2011 à 17:39 +0200, Daniel Baluta a écrit : > > > >> Ok, for the moment it seems to be a bad idea. But my intention is > >> to integrate kref to networking code, and then to write a general > >> debugging tool for refs. > >> > >> Tracking down reference count problems is hard, and this tool can > >> really help everyone. > > > > I dont think kref will help you that much, because its used everywhere. > > > > Adding a general debugging tool will provide too much noise. > > > > Instead, we (network dev) add debugging points where we want. > > Yes, but you have to do this each time you start debugging, for a > particular referenced counted object. > > We must find a clever solution to avoid the noise. (e.g use > /proc, /sysfs, /debugfs options to trigger dumping info for > some/all objects with a certain state). Then use the dynamic debug infrastructure, which is there to help you try to handle this type of debugging on-the-fly. But again, it's not a kref issue, sorry. greg k-h -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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