Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932186AbbBPK4e (ORCPT ); Mon, 16 Feb 2015 05:56:34 -0500 Received: from mail-lb0-f180.google.com ([209.85.217.180]:36809 "EHLO mail-lb0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755347AbbBPK4c (ORCPT ); Mon, 16 Feb 2015 05:56:32 -0500 MIME-Version: 1.0 In-Reply-To: References: <1421920228.7061.48.camel@haakon3.risingtidesystems.com> <1421948107.30821.2.camel@haakon3.risingtidesystems.com> <1422658406.5117.31.camel@haakon3.risingtidesystems.com> <1423725382.8354.34.camel@haakon3.risingtidesystems.com> Date: Mon, 16 Feb 2015 18:56:30 +0800 Message-ID: Subject: Re: General protection fault in iscsi_rx_thread_pre_handler From: Gavin Guo To: "Nicholas A. Bellinger" Cc: linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-kernel Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3193 Lines: 93 Hi Nicholas, On Mon, Feb 16, 2015 at 6:52 PM, Gavin Guo wrote: > Hi Nicholas, > > On Thu, Feb 12, 2015 at 3:16 PM, Nicholas A. Bellinger > wrote: >> Hi Gavin, >> >> On Tue, 2015-02-03 at 08:28 +0800, Gavin Guo wrote: >>> Hi Nicholas, >>> >>> On Sun, Feb 1, 2015 at 11:47 AM, Gavin Guo wrote: >>> > Hi Nicholas, >>> > >>> > On Sat, Jan 31, 2015 at 6:53 AM, Nicholas A. Bellinger >>> > wrote: >>> >> On Fri, 2015-01-23 at 09:30 +0800, Gavin Guo wrote: >>> >>> Hi Nicholas, >>> >>> >>> >>> On Fri, Jan 23, 2015 at 1:35 AM, Nicholas A. Bellinger >>> >>> wrote: >>> >>> > On Thu, 2015-01-22 at 23:56 +0800, Gavin Guo wrote: >>> >>> >> Hi Nicolas, >>> >>> >> >>> >>> >> On Thu, Jan 22, 2015 at 5:50 PM, Nicholas A. Bellinger >> >> >> >>> >>> >> > At the time, a different set of iser-target related changes ended up >>> >>> >> > avoiding this issue on his particular setup, so we thought it was likely >>> >>> >> > a race triggered by login failures specific to iser-target code. >>> >>> >> > >>> >>> >> > There was a untested patch (included inline below) to drop the legacy >>> >>> >> > active_ts_list usage all-together, but IIRC he was not able to reproduce >>> >>> >> > further so the patch didn't get picked up for mainline. >>> >>> >> > >>> >>> >> > If your able to reliability reproduce, please try with the following >>> >>> >> > patch and let us know your progress. >>> >>> >> >>> >>> >> Thanks for your time reading the mail. I'll let you know the result. >>> >>> > >>> >>> > Just curious, are you able to reliability reproduce this bug in a VM..? >>> >>> >>> >>> Thanks for your caring, the machine is on the customer side, I've >>> >>> asked and now waiting for their response. >>> >> >>> >> Hi Gavin, >>> >> >>> >> Just curious if there has been any update on this yet..? >>> >> >>> >> --nab >>> >> >>> > >>> > Really thanks for your attention. I'm also currently waiting for the >>> > customer's reply and will send the email again to ask for the result. >>> > However, I think the symptom may be hard to replicate that's why the >>> > customer didn't reply me for a long time. Thanks for your time again. >>> > >>> > Thanks, >>> > Gavin >>> >>> Sorry for making you wait so long. I just got the response from the >>> customer, they said the general protection fault happened just 2 times >>> in the past and cannot be reliably reproduced. And I am now waiting >>> for the verification test. >>> >> >> Just a heads up that I'm planning to include this patch in the v3.20-rc1 >> PULL request. >> >> Please let me know if you have any objections. >> >> Thank you, >> >> --nab >> > > The bug Sorry, I mistakenly press the send button last time. The bug doesn't appear after the customer upgraded the kernel with the patch. Really thanks for your help. I'll keep you posted if the bug appears again. Thanks, Gavin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/