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 4C615C433EF for ; Mon, 27 Dec 2021 14:30:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237160AbhL0OaT (ORCPT ); Mon, 27 Dec 2021 09:30:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49840 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234125AbhL0OaT (ORCPT ); Mon, 27 Dec 2021 09:30:19 -0500 Received: from mail.sf-mail.de (mail.sf-mail.de [IPv6:2a01:4f8:1c17:6fae:616d:6c69:616d:6c69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5B45DC06173E for ; Mon, 27 Dec 2021 06:30:18 -0800 (PST) Received: (qmail 26397 invoked from network); 27 Dec 2021 14:30:42 -0000 Received: from p200300cf071195002d44b0807b269561.dip0.t-ipconnect.de ([2003:cf:711:9500:2d44:b080:7b26:9561]:47254 HELO daneel.sf-tec.de) (auth=eike@sf-mail.de) by mail.sf-mail.de (Qsmtpd 0.38dev) with (TLS_AES_256_GCM_SHA384 encrypted) ESMTPSA for ; Mon, 27 Dec 2021 15:30:42 +0100 From: Rolf Eike Beer To: linux-parisc@vger.kernel.org Subject: Re: pagefaults and hang with 5.15.11 Date: Mon, 27 Dec 2021 15:30:10 +0100 Message-ID: <12921974.uLZWGnKmhe@daneel.sf-tec.de> In-Reply-To: References: <11891682.O9o76ZdvQC@daneel.sf-tec.de> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2808213.e9J7NaK4W3"; micalg="pgp-sha1"; protocol="application/pgp-signature" Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org --nextPart2808213.e9J7NaK4W3 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Am Sonntag, 26. Dezember 2021, 18:22:12 CET schrieb John David Anglin: > On 2021-12-26 11:21 a.m., Rolf Eike Beer wrote: > > [139181.966881] WARNING: CPU: 1 PID: 0 at kernel/rcu/tree.c:613 > > rcu_eqs_enter.constprop.0+0x8c/0x98 > This is probably not reproducible. You might try this change from Sven At least this time the git testsuite has finished, but with some errors as usual. > diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c > index cf92ece20b75..0cd97fa004c5 100644 > --- a/arch/parisc/kernel/smp.c > +++ b/arch/parisc/kernel/smp.c > @@ -228,11 +228,13 @@ static inline void > send_IPI_allbutself(enum ipi_message_type op) > { > int i; > - > + > + preempt_disable(); > for_each_online_cpu(i) { > if (i != smp_processor_id()) > send_IPI_single(i, op); > } > + preempt_enable(); > } > > #ifdef CONFIG_KGDB I'll add this and see what happens. > and my "[PATCH v3] parisc: Rewrite light-weight syscall and futex code" > change. Page faults in the LWS code can mess up scheduling. But that would be nothing new. At least the machine has been quite stable in the last time. > I haven't found 5.15.11 to be stable. Ok, so I'll keep this in the queue for hppa and try again later. Eike --nextPart2808213.e9J7NaK4W3 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQSaYVDeqwKa3fTXNeNcpIk+abn8TgUCYcnN8gAKCRBcpIk+abn8 Tn9tAJ0ZSbi3ROGJj1mTOgw6q1JqaXqZlgCgnbPlhATiRCu5p+h+Jx8tfPU2eR8= =+ql1 -----END PGP SIGNATURE----- --nextPart2808213.e9J7NaK4W3--