From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russell King Subject: Re: Memory leak in 2.6.11-rc1? Date: Thu, 27 Jan 2005 19:25:04 +0000 Message-ID: <20050127192504.D3036@flint.arm.linux.org.uk> References: <20050123095608.GD16648@suse.de> <20050123023248.263daca9.akpm@osdl.org> <20050123200315.A25351@flint.arm.linux.org.uk> <20050124114853.A16971@flint.arm.linux.org.uk> <20050125193207.B30094@flint.arm.linux.org.uk> <20050127082809.A20510@flint.arm.linux.org.uk> <20050127004732.5d8e3f62.akpm@osdl.org> <16888.58622.376497.380197@robur.slu.se> <20050127164918.C3036@flint.arm.linux.org.uk> <20050127183745.GA13365@linuxace.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Robert Olsson , Andrew Morton , torvalds@osdl.org, alexn@dsv.su.se, kas@fi.muni.cz, linux-kernel@vger.kernel.org, netdev@oss.sgi.com Return-path: To: Phil Oester Content-Disposition: inline In-Reply-To: <20050127183745.GA13365@linuxace.com>; from kernel@linuxace.com on Thu, Jan 27, 2005 at 10:37:45AM -0800 Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Thu, Jan 27, 2005 at 10:37:45AM -0800, Phil Oester wrote: > On Thu, Jan 27, 2005 at 04:49:18PM +0000, Russell King wrote: > > so obviously the GC does appear to be working - as can be seen from the > > number of entries in /proc/net/rt_cache. However, the number of objects > > in the slab cache does grow day on day. About 4 days ago, it was only > > about 600 active objects. Now it's more than twice that, and it'll > > continue increasing until it hits 8192, where upon it's game over. > > I can confirm the behavior you are seeing -- does seem to be a leak > somewhere. Below from a heavily used gateway with 26 days uptime: > > # wc -l /proc/net/rt_cache ; grep ip_dst /proc/slabinfo > 12870 /proc/net/rt_cache > ip_dst_cache 53327 57855 > > Eventually I get the dst_cache overflow errors and have to reboot. Can you provide some details, eg kernel configuration, loaded modules and a brief overview of any netfilter modules you may be using. Maybe we can work out what's common between our setups. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/ 2.6 Serial core