From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5009EC433F5 for ; Fri, 18 Feb 2022 07:12:21 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4K0NDg1L7kz3cm9 for ; Fri, 18 Feb 2022 18:12:19 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=leemhuis.info (client-ip=2a01:488:42:1000:50ed:8234::; helo=wp530.webpack.hosteurope.de; envelope-from=regressions@leemhuis.info; receiver=) Received: from wp530.webpack.hosteurope.de (wp530.webpack.hosteurope.de [IPv6:2a01:488:42:1000:50ed:8234::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4K0ND95TgFz3cDC for ; Fri, 18 Feb 2022 18:11:52 +1100 (AEDT) Received: from ip4d144895.dynamic.kabel-deutschland.de ([77.20.72.149] helo=[192.168.66.200]); authenticated by wp530.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) id 1nKxQc-0003hp-F5; Fri, 18 Feb 2022 08:11:42 +0100 Message-ID: Date: Fri, 18 Feb 2022 08:11:41 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: bug: usb: gadget: FSL_UDC_CORE Corrupted request list leads to unrecoverable loop. Content-Language: en-BS To: Leo Li , "jocke@infinera.com" , "Eugene_Bordenkircher@selinc.com" , "linux-usb@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" References:

<726d3561-1842-72c7-d4cb-9a99211bb05c@leemhuis.info> <527ebc333daa2a1d513ea217e5beb61a5acea3fb.camel@infinera.com>

From: Thorsten Leemhuis In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-bounce-key: webpack.hosteurope.de; regressions@leemhuis.info; 1645168314; feacc0e3; X-HE-SMSGID: 1nKxQc-0003hp-F5 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "gregkh@linuxfoundation.org" , "balbi@kernel.org" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Hi, this is your Linux kernel regression tracker speaking. Top-posting for once, to make this easy accessible to everyone. Sadly it looks to me like nobody is going to address this (quite old) regression (that afaic only very few people will hit), despite the rough patch to fix it that was already posted and tested in this thread. Well, guess that's how it is sometimes. Marking it as "on back burner" in regzbot to reduce the noise there: #regzbot backburner: Tested patch available, but things nevertheless got stuck Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) P.S.: As the Linux kernel's regression tracker I'm getting a lot of reports on my table. I can only look briefly into most of them and lack knowledge about most of the areas they concern. I thus unfortunately will sometimes get things wrong or miss something important. I hope that's not the case here; if you think it is, don't hesitate to tell me in a public reply, it's in everyone's interest to set the public record straight. #regzbot poke On 20.01.22 13:54, Thorsten Leemhuis wrote: > Hi, this is your Linux kernel regression tracker speaking. > > On 04.12.21 01:40, Leo Li wrote: >>> -----Original Message----- >>> From: Joakim Tjernlund >>> Sent: Thursday, December 2, 2021 4:45 PM >>> To: regressions@leemhuis.info; Leo Li ; >>> Eugene_Bordenkircher@selinc.com; linux-usb@vger.kernel.org; linuxppc- >>> dev@lists.ozlabs.org >>> Cc: gregkh@linuxfoundation.org; balbi@kernel.org >>> Subject: Re: bug: usb: gadget: FSL_UDC_CORE Corrupted request list leads to >>> unrecoverable loop. >>> >>> On Thu, 2021-12-02 at 20:35 +0000, Leo Li wrote: >>>> >>>>> -----Original Message----- >>>>> From: Joakim Tjernlund >>>>> Sent: Wednesday, December 1, 2021 8:19 AM >>>>> To: regressions@leemhuis.info; Leo Li ; >>>>> Eugene_Bordenkircher@selinc.com; linux-usb@vger.kernel.org; >>>>> linuxppc- dev@lists.ozlabs.org >>>>> Cc: gregkh@linuxfoundation.org; balbi@kernel.org >>>>> Subject: Re: bug: usb: gadget: FSL_UDC_CORE Corrupted request list >>>>> leads to unrecoverable loop. >>>>> >>>>> On Tue, 2021-11-30 at 12:56 +0100, Joakim Tjernlund wrote: >>>>>> On Mon, 2021-11-29 at 23:48 +0000, Eugene Bordenkircher wrote: >>>>>>> Agreed, >>>>>>> >>>>>>> We are happy pick up the torch on this, but I'd like to try and >>>>>>> hear from >>>>> Joakim first before we do. The patch set is his, so I'd like to >>>>> give him the opportunity. I think he's the only one that can add a >>>>> truly proper description as well because he mentioned that this >>>>> includes a "few more fixes" than just the one we ran into. I'd >>>>> rather hear from him than try to reverse engineer what was being >>> addressed. >>>>>>> >>>>>>> Joakim, if you are still watching the thread, would you like to >>>>>>> take a stab >>>>> at it? If I don't hear from you in a couple days, we'll pick up the >>>>> torch and do what we can. > > Did anything happen? Sure, it's a old regression from the v3.4-rc4 days, > but there iirc was already a tested proto-patch in that thread that > fixes the issue. Or was progress made and I just missed it? > > Ciao, Thorsten > > P.S.: As a Linux kernel regression tracker I'm getting a lot of reports > on my table. I can only look briefly into most of them. Unfortunately > therefore I sometimes will get things wrong or miss something important. > I hope that's not the case here; if you think it is, don't hesitate to > tell me about it in a public reply, that's in everyone's interest. > > BTW, I have no personal interest in this issue, which is tracked using > regzbot, my Linux kernel regression tracking bot > (https://linux-regtracking.leemhuis.info/regzbot/). I'm only posting > this mail to get things rolling again and hence don't need to be CC on > all further activities wrt to this regression. > > #regzbot ignore-activity > >>>>>> I am far away from this now and still on 4.19. I don't mind if you >>>>>> tweak >>>>> tweak the patches for better "upstreamability" >>>>> >>>>> Even better would be to migrate to the chipidea driver, I am told >>>>> just a few tweaks are needed but this is probably something NXP >>>>> should do as they have access to other SOC's using chipidea. >>>> >>>> I agree with this direction but the problem was with bandwidth. As this >>> controller was only used on legacy platforms, it is harder to justify new effort >>> on it now. >>> >>> Legacy? All PPC is legacy and not supported now? >> >> I'm not saying that they are not supported, but they are in maintenance only mode.