From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Lunn Subject: Re: [PATCH v1 net] lan743x: fix return value for lan743x_tx_napi_poll Date: Tue, 20 Nov 2018 20:30:54 +0100 Message-ID: <20181120193054.GE2649@lunn.ch> References: <1542738403-23034-1-git-send-email-Bryan.Whitehead@microchip.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: davem@davemloft.net, netdev@vger.kernel.org, UNGLinuxDriver@microchip.com To: Bryan Whitehead Return-path: Received: from vps0.lunn.ch ([185.16.172.187]:43033 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726054AbeKUGBm (ORCPT ); Wed, 21 Nov 2018 01:01:42 -0500 Content-Disposition: inline In-Reply-To: <1542738403-23034-1-git-send-email-Bryan.Whitehead@microchip.com> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, Nov 20, 2018 at 01:26:43PM -0500, Bryan Whitehead wrote: > It has been noticed that under stress the lan743x driver will > sometimes hang or cause a kernel panic. It has been noticed > that returning '0' instead of 'weight' fixes this issue. > > fixes: rare kernel panic under heavy traffic load. > Signed-off-by: Bryan Whitehead Hi Bryan This sounds like a band aid over something which is broken, not a real fix. Can you show us the stack trace from the panic? Andrew