From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bartlomiej Zolnierkiewicz Subject: Re: [PATCH 00/12 v5] Multiqueue for MMC/SD Date: Tue, 14 Nov 2017 14:30:49 +0100 Message-ID: <3035686.4xzDXYcRrr@amdc3058> References: <20171110100143.12256-1-linus.walleij@linaro.org> <44451616.XazKDfAUO2@amdc3058> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-reply-to: <44451616.XazKDfAUO2@amdc3058> Sender: linux-block-owner@vger.kernel.org To: Linus Walleij Cc: linux-mmc@vger.kernel.org, Ulf Hansson , linux-block@vger.kernel.org, Jens Axboe , Christoph Hellwig , Arnd Bergmann , Paolo Valente , Avri Altman , Adrian Hunter List-Id: linux-mmc@vger.kernel.org On Tuesday, November 14, 2017 01:17:34 PM Bartlomiej Zolnierkiewicz wrote: > This works much better than initial version and a simple dd read > test shows more consistent results than with vanilla kernel. > > However there are still some issues: > > 1. 30 seconds delay on "Waiting for /dev to be fully populated..." > during boot > > 2. reboot command no longer works (there is a livelock after > "The system is going down for reboot NOW!" message) > > Full log (together with SysRq-l & SysRq-t outputs) attached. BTW: these problems are not present in Adrian's V13 patchset (with mmc-mq enabled by default). Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics