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 3BECAC77B6E for ; Fri, 14 Apr 2023 13:56:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229954AbjDNN4N (ORCPT ); Fri, 14 Apr 2023 09:56:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45520 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229547AbjDNN4L (ORCPT ); Fri, 14 Apr 2023 09:56:11 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 79F18DF; Fri, 14 Apr 2023 06:56:10 -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 1E1F0219D6; Fri, 14 Apr 2023 13:56:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1681480569; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=gGAv0INF7x/Cz+gDaxHsL2GJAEP0XFePnk5ZG5kCoXs=; b=XEQ/mJKe8hfBsWRxwQmt/g2vUyg6NE7VHp6xZ9hlmIdk0wbYl8O0g1tCjXkR945kXLRP71 QJt6O1VwE7eqvwCxl2aC8ehAA5zdHT/qmQhz3xYVCc6uu9iXCjcwGxIBgjYtxbS/RM24e9 g5/p9TUgsJV27L3q/PHsFVgMR9mamTs= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1681480569; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=gGAv0INF7x/Cz+gDaxHsL2GJAEP0XFePnk5ZG5kCoXs=; b=6x2fEKafeMW7bHZthyy8Nex5gamsJD66os/6JcK0NS6tusCh5oNb/2kISBqquF3K4O8yhD d8PMi1fNxgCQmXAA== 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 F0C5413498; Fri, 14 Apr 2023 13:56:08 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id f9buOXhbOWTEFgAAMHmgww (envelope-from ); Fri, 14 Apr 2023 13:56:08 +0000 Message-ID: <73b5657a-4c47-980a-e709-cd6a880c067c@suse.cz> Date: Fri, 14 Apr 2023 15:56:08 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.0 Subject: Re: [ANNOUNCE] v6.3-rc2-rt3 To: John Ogness , Pierre Gondois , Sebastian Andrzej Siewior Cc: LKML , linux-rt-users@vger.kernel.org, Steven Rostedt , Thomas Gleixner References: <20230314170502.OHw1_FK3@linutronix.de> <20230314171231.jwtham4a@linutronix.de> <9ee941ae-ae22-f14b-4e69-f81b29bbba4b@arm.com> <87ttxiefpd.fsf@jogness.linutronix.de> Content-Language: en-US From: Vlastimil Babka In-Reply-To: <87ttxiefpd.fsf@jogness.linutronix.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/14/23 15:49, John Ogness wrote: > Hi Pierre, > > On 2023-04-14, Pierre Gondois wrote: >> ============================= >> [ BUG: Invalid wait context ] >> 6.3.0-rc5-rt8-gacb52bd349a2 #417 Not tainted >> ----------------------------- >> swapper/0/1 is trying to lock: >> ffff00097eea1180 (cpu){....}-{3:3}, at: __printk_safe_enter (kernel/printk/printk_safe.c:28 (discriminator 3)) >> other info that might help us debug this: >> context-{5:5} >> 1 lock held by swapper/0/1: >> #0: ffff80000ba77028 (rcu_tasks_rude.cbs_gbl_lock){....}-{2:2}, at: cblist_init_generic (kernel/rcu/tasks.h:233) > > This is actually a mainline issue relating to legacy consoles. In > mainline you see it as a warning when CONFIG_PROVE_RAW_LOCK_NESTING is > enabled. > > If you enable CONFIG_PREEMPT_RT you will not have the problem. > > I will look at how the issue can be gracefully ignored in > !CONFIG_PREEMPT_RT. Is it perhaps a similar situation to this thread? https://lore.kernel.org/all/20230412124735.GE628377@hirez.programming.kicks-ass.net/ > Thanks for reporting. > > John Ogness