From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: TCP connection stops after high load. Date: 12 Apr 2007 16:48:10 +0200 Message-ID: References: <461D2DEA.4010806@candelatech.com> <461D447C.4070408@candelatech.com> <20070411.134804.50594117.davem@davemloft.net> <461D4DD7.7020207@candelatech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: David Miller , netdev@vger.kernel.org To: Ben Greear Return-path: Received: from cantor.suse.de ([195.135.220.2]:48246 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753812AbXDLNt5 (ORCPT ); Thu, 12 Apr 2007 09:49:57 -0400 In-Reply-To: <461D4DD7.7020207@candelatech.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Ben Greear writes: > > I don't mind adding printks...and I've started reading through the code, > but there is a lot of it, and indiscriminate printks will likely just > hide the problem because it will slow down performance so much. You could add /proc/net/snmp counters for interesting events (e.g. GFP_ATOMIC allocations failing). Perhaps netstat -s already shows something interesting. -Andi