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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4AB98CCA47F for ; Tue, 19 Jul 2022 14:12:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238983AbiGSOMw (ORCPT ); Tue, 19 Jul 2022 10:12:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53464 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238388AbiGSOMd (ORCPT ); Tue, 19 Jul 2022 10:12:33 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 236F1CE3C; Tue, 19 Jul 2022 06:35:14 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 94DEA347EB; Tue, 19 Jul 2022 13:35:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1658237713; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=dQkGZ2bUCaXoPh/D/Jj4IPkCDd93zpdb0jFOJ4x+L1k=; b=RXpYSGlmRcef3l7YiwRFdAApPwXNCGsn0BDGq8RMYOlXFurF0+ck6ho6rGcVbsWtc/fUP6 De4sOP94LDSs7rGW7/DXiKXGZ3iMCVaCS8xrKMTqCvGXTFpvP8npNoI8fDTvetmmD0jubo mc2b6WY+Bg2Qby9yeLCG9cnhEe+PPKo= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 5975513A72; Tue, 19 Jul 2022 13:35:13 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id I8ALFRGz1mLrXQAAMHmgww (envelope-from ); Tue, 19 Jul 2022 13:35:13 +0000 Date: Tue, 19 Jul 2022 15:35:12 +0200 From: Michal =?iso-8859-1?Q?Koutn=FD?= To: Jing-Ting Wu Cc: Tejun Heo , Johannes Weiner , Zefan Li , Matthias Brugger , cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Shakeel Butt , wsd_upstream@mediatek.com, lixiong.liu@mediatek.com, wenju.xu@mediatek.com, jonathan.jmchen@mediatek.com Subject: Re: [Bug] race condition at rebind_subsystems() Message-ID: <20220719133512.GD897@blackbody.suse.cz> References: <1978e209e71905d89651e61abd07285912d412a1.camel@mediatek.com> <20220715115938.GA8646@blackbody.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 18, 2022 at 03:44:21PM +0800, Jing-Ting Wu wrote: > Accroding your description, is the following patch corrent? Yes, this is what I meant (i.e. grace period before invalidating the removed rstat_css_node). > If the patch is correct, we will add this patch to our stability test. > And we will continue to observe whether the problem is solved. It'd be great to have such confirmation. Thanks, Michal