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[35.200.101.178]) by smtp.gmail.com with ESMTPSA id nn6sm15509433pjb.57.2021.06.08.21.13.10 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 08 Jun 2021 21:13:11 -0700 (PDT) Received: from martinet by pc-0115 with local (Exim 4.94.2) (envelope-from ) id 1lqpaX-009K8i-MQ; Wed, 09 Jun 2021 13:13:09 +0900 Date: Wed, 9 Jun 2021 13:12:59 +0900 From: Dominique MARTINET To: Guenter Roeck Cc: Laurent Pinchart , Mauro Carvalho Chehab , Sakari Ailus , linux-uvc-devel@lists.sourceforge.net, linux-usb@vger.kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH RESEND v3 0/5] media: uvcvideo: Fix race conditions Message-ID: References: <20200917022547.198090-1-linux@roeck-us.net> <20200917124714.GD3969@pendragon.ideasonboard.com> <990652f1-b6e4-211c-7a96-8c3fc3ea6efd@roeck-us.net> <74c0c32a-ebb5-34e0-d3a2-6b417ce328a1@roeck-us.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <74c0c32a-ebb5-34e0-d3a2-6b417ce328a1@roeck-us.net> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Guenter Roeck wrote on Fri, Mar 12, 2021 at 06:54:52AM -0800: > On 3/11/21 11:36 PM, Dominique MARTINET wrote: > > Guenter Roeck wrote on Thu, Sep 17, 2020 at 07:16:17PM -0700: > >> On 9/17/20 5:47 AM, Laurent Pinchart wrote: > >>> I haven't checked the mailing list, but I've found it in my inbox :-) > >>> I'm not forgetting about you, just been fairly busy recently. I still > >>> plan to try and provide an alternative implementation in the V4L2 core > >>> (in a form that I think should even be moved to the cdev core) that > >>> would fix this for all drivers. > >>> > >> Thanks for letting me know. As it turns out, this problem is responsible > >> for about 2% of all Chromebook crashes, so I'll probably not wait for > >> the series to be accepted upstream but apply it as-is to the various > >> ChromeOS kernel branches. > > > > We have a customer who reported the same issue recently, has there been > > any development? > > > > Not that I know of. We applied the series to all Chrome OS kernel branches, > and it reliably fixes the problem for us. We'd like to have the problem > fixed upstream; until that happens we'll have to carry the series forward. Thanks for confirming. Laurent, would it make sense to take the patches as they are until a better fix is ready? -- Dominique