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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 00C04C43334 for ; Thu, 23 Jun 2022 13:31:20 +0000 (UTC) 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=7U+zvYCB2zrJO/xke1/8TKIgb6zxXzM+76Kpch+qogU=; b=CvwrJCDLaNi/rm ZChoWbBGlOsho22w0p3YJy2hm+JxlLvhZx9T80EVls6M6g6y8s6UiSPGAwtqLLDZ3fEq6XizVC8mu ILyfhwubnR6/LH3FRu5bM6deePK9qaSyzt72erm2t9XHD37zIp+hr+C77+/+mWNcfcJfEtJWpd//Y xyjESIO3oRW85Gf59g+4K/RRWOn6/mkWfPVgnv2CffVDG7OCXwNAw/Fd2cuKdfEH6Ovegawi5VnmB dxneTdV5RjqaVpEepSSFxtKmAmA3N5fB5hq59KOUbzD9FyABVV8cEmqduGPOFFfdP85rL2ULYjOa2 m3e0qWLQaM5VYFtuzJQA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o4MuV-00FN4j-2E; Thu, 23 Jun 2022 13:30:15 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:32c8:5054:ff:fe00:142]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o4MuQ-00FMcO-FZ for linux-arm-kernel@lists.infradead.org; Thu, 23 Jun 2022 13:30:12 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=0skEhYLIpLBdw55oP29AteVaz7v4fkIM7KMilNiiK58=; b=H3B1hruRPKz5CvaUsRL7JUUHrM /MTCPSumhHLR77Az9zS64mLyFoOuz7gdqU4aDOYEqqN7yj9anxn7fqOXvKtt5/opwSTTATVGLt1b5 1Ctd4Jt0rW4Jx/8wKxZolvneM4oGBDSHeui4lZnoji6d2JFAmV2rFeJV7Sbt1YmO0dZ/1ZYLoTkZU sYoH+LoXETQjp9d86RPnaD3bzJ95fITui876GHqK2nvMr1NmLmykTvHpTGswm+gCUWNyWWrhHi4pg fy+2mtDGsI7k5nZYBdFj+ovm6I2LjWsEuBDVC47cReagxOMM9KZW0NywYWkwLc1kddAlaeXS+L6wH bby4hbvQ==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:33002) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1o4MsI-0004tm-4M; Thu, 23 Jun 2022 14:27:58 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1o4MsH-0008SE-Br; Thu, 23 Jun 2022 14:27:57 +0100 Date: Thu, 23 Jun 2022 14:27:57 +0100 From: "Russell King (Oracle)" To: Andreas Schwab Cc: linux-arm-kernel@lists.infradead.org Subject: Re: BUG: scheduling while atomic: swapper/1/0/0xffff0000 Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220623_063010_554620_501EF889 X-CRM114-Status: UNSURE ( 9.73 ) X-CRM114-Notice: Please train this message. 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, Jun 23, 2022 at 02:55:08PM +0200, Andreas Schwab wrote: > I'm getting a lot of these messages on a panda board: > > [ 572.187805] BUG: scheduling while atomic: swapper/1/0/0xffff0000 This looks like a preempt count underflow of hard interrupts, which means the backtrace won't be useful in tracking it down, sadly. If it's a regression, bisecting might be the easiest way to find the offending commit. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last! _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel