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 X-Spam-Level: X-Spam-Status: No, score=-4.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B8C0EC07E96 for ; Thu, 15 Jul 2021 11:06:13 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8CD1E613BA for ; Thu, 15 Jul 2021 11:06:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8CD1E613BA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=OT4ruxsM/ZET5nilRx1MCLzmUBJu5F3sp0WLvCxFOGM=; b=XtbfNNR5MMslT3 WuqzETSwmNPHVhJFjRpGyVpYL9Vh1fLqYOczalz2bEVjf6L71VxxwuyZusrdhVcLbEnX6ai3Qv64B ccnH/fgZO49jqN0EC0oSol078lgt6Y5FnROkvI1H3PuRQuoiZ52SjrlGdu1iCOSHPyxbcGFgZP7uh bo/qcgRxYt66RelbvTy4ZLAcmgK5ahB34xCFPvD9UMjrujdkudCbA/mGBEYTZAulJ/gEAmi5R+RKr uNSK8y0WtfWfo+dhmjmqy3tbbDz/k9YWhvbqUjzUKwx6ICAQUUI30gpdUmi5LmLWiieYVEVVGbBXY UBa6KOJZxkelm1psLvOA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1m3zA1-000Wnr-Vy; Thu, 15 Jul 2021 11:04:10 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1m3z9y-000WnF-Mq; Thu, 15 Jul 2021 11:04:08 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id A6BC7613BA; Thu, 15 Jul 2021 11:04:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626347046; bh=CtZTxWBhgkfpj48NrkT/qW6992ERI7R/jVxq3j9XRC4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=OW+Uut5UyBiCKe8zReiC47xuKdCP+DvO6Mld2qsVHrNf088APKcqWk0MjCxkXh9L4 j4oj5ntEqj5tptncGvhQ08bEgcJEpK5Ryyj9W4OwvnTDKUMggAgFlihbGmzgqLTKY1 VpW14IBcipVmZ2r3xFi5GbHjPzcsmlhaHIcbks6U= Date: Thu, 15 Jul 2021 13:03:58 +0200 From: Greg Kroah-Hartman To: Macpaul Lin Cc: linux-stable , Mika Westerberg , Ainge Hsu , Eddie Hung , Miles Chen , Kuohong Wang , linux-mediatek , Macpaul Lin , linux-arm-kernel , linux-usb , AceLan Kao , "Rafael J. Wysocki" , Jens Axboe , Mediatek WSD Upstream Subject: Re: Fix: Please help to cherry-pick patch "bdi: Do not use freezable workqueue" to stable tree Message-ID: References: <1626323319.18118.17.camel@mtkswgap22> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1626323319.18118.17.camel@mtkswgap22> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210715_040406_803926_34F0F645 X-CRM114-Status: GOOD ( 11.64 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Jul 15, 2021 at 12:28:39PM +0800, Macpaul Lin wrote: > Dear Greg, > > Our customers have feedback some similar issues as below link on Android > kernel-4.14 and kernel-4.19. > Link: https://marc.info/?l=linux-kernel&m=138695698516487 > > They've reported system become abnormal when OTG U-disk has been plugged > out after the system has been suspended. > After debugging, we've found the root cause is the same of the issue > (link) has been reported. We've also tested the patch "bdi: Do not use > freezable workqueue" is worked. > Link: https://lkml.org/lkml/2019/10/4/176 > commit id in Linus tree: a2b90f11217790ec0964ba9c93a4abb369758c26 > > However, we've checked that patch seems hasn't been applied to stable > tree (We've checked 4.14 and 4.19). Would you please help to cherry-pick > this patch to stable trees (and to Android trees)? Now queued up to the stable kernel trees. If you need something in Android kernel trees, please contact google or submit a patch to AOSP for the needed branches. thanks, greg k-h _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel