Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751726AbbGaS7g (ORCPT ); Fri, 31 Jul 2015 14:59:36 -0400 Received: from h1446028.stratoserver.net ([85.214.92.142]:44446 "EHLO mail.ahsoftware.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751066AbbGaS7f (ORCPT ); Fri, 31 Jul 2015 14:59:35 -0400 Subject: Re: ATA failure regression in kernel 4.2 To: Jiang Liu , Alex Deucher References: <20150723183548.GS15934@mtj.duckdns.org> <55B59F22.2010102@linux.intel.com> <55B65CBF.6010007@linux.intel.com> <55B7CBE8.6090801@ahsoftware.de> <55BB500F.8050706@ahsoftware.de> <55BB5119.5040308@linux.intel.com> Cc: Tejun Heo , LKML From: Alexander Holler Message-ID: <55BBC58D.6080904@ahsoftware.de> Date: Fri, 31 Jul 2015 20:59:25 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 MIME-Version: 1.0 In-Reply-To: <55BB5119.5040308@linux.intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1751 Lines: 52 Am 31.07.2015 um 12:42 schrieb Jiang Liu: > > > On 2015/7/31 18:38, Alexander Holler wrote: >> Am 28.07.2015 um 20:37 schrieb Alexander Holler: >> >>> Same problem here with the AMD SATA controller (1022:7801). It failed to >>> identify the second disk when using 4.2-rc4. >>> >>> nointremap helped, nothing else tested >> >> A quick look at the change history and two tests are suggesting that the >> right one already is in cc. >> >> commit >> >> f7fa7ae x86/irq: Avoid memory allocation in __assign_irq_vector() >> >> fails while >> >> af87bae x86/htirq: Use new irqdomain interfaces to allocate/free IRQ >> >> works. Inbetween almost all changes are from Jiang Liu. >> >> Haven't bisected it up to now but might do it later. > Hi Alexander, > Really thanks for you help. I have debugged this regression > for a whole day without any progress:( Everything seems correct to me, > and I have no hardware to reproduce and debug it. Still need more time:( > Thanks! > Gerry > There's nothing to excuse. It wasn't a flame, just a determination. I'm sorry if it might have sounded like a flame. Only people which are doing nothing don't make failures, and doing nothing often is a failure itself. But I'm drifting aways. I've now bisected those commits I've had already identified by other means down to the commit 52f518a3a7c2f80551a38d38be28bc9f335e713c "x86/MSI: Use hierarchical irqdomains to manage MSI interrupts". That is the one where 4.2-rc* fails here first. Regards, Alexander Holler -- 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/