linux-kernel - Re: dst cache overflow

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Message-ID: <20080318185914.GA9275@yamamaya.is-a-geek.org>
Date:	Tue, 18 Mar 2008 19:59:14 +0100
From:	Tobias Diedrich <ranma+kernel@...edrich.de>
To:	Herbert Xu <herbert@...dor.apana.org.au>,
	linux-net@...r.kernel.org, linux-kernel@...r.kernel.org,
	dada1@...mosbay.com
Subject: Re: dst cache overflow

Tobias Diedrich wrote:

> just a reminder, the server is now running 2.6.24 and the leak is
> still there.  I noticed there is a slab leak debug option and turned
> it on, results should be visible in a few days I guess.

Current (20080318 19:42) biggest net-related numbers:

skbuff_head_cache: 1614 __alloc_skb+0x29/0x108
ip_dst_cache: 1579 dst_alloc+0x25/0x5f
skbuff_fclone_cache: 965 __alloc_skb+0x29/0x108
size-512: 895 sock_wmalloc+0x2b/0x4d
TCPv6: 856 sk_clone+0x14/0x16a
size-2048: 733 tcp_sendmsg+0x174/0x9fc
size-512: 279 sock_alloc_send_skb+0x7c/0x193
size-512: 238 tcp_send_ack+0x2a/0xec
size-512: 223 tcp_send_fin+0x60/0x12e
sock_inode_cache: 172 sock_alloc_inode+0x10/0x4e
size-1024: 147 sock_alloc_send_skb+0x7c/0x193


ranma@oni:~$ netstat -6 -an | wc -l
29

-- 
Tobias						PGP: http://9ac7e0bc.uguu.de
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