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=-8.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL 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 143FAC31E40 for ; Fri, 9 Aug 2019 21:21:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CC9E820B7C for ; Fri, 9 Aug 2019 21:21:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="g9oyDjYv" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726652AbfHIVVe (ORCPT ); Fri, 9 Aug 2019 17:21:34 -0400 Received: from mail-pf1-f170.google.com ([209.85.210.170]:42690 "EHLO mail-pf1-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726137AbfHIVVe (ORCPT ); Fri, 9 Aug 2019 17:21:34 -0400 Received: by mail-pf1-f170.google.com with SMTP id q10so46665047pff.9 for ; Fri, 09 Aug 2019 14:21:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=kldKeb8kARboS/NIYVE9yvFOhNZdEhTtxG/Vo2Vmbl8=; b=g9oyDjYvsMhBIyZNkKmSJp4gQHDDhQkUEKM0LUlWQU6hE45Vr+P3bgE0/1Tk9KOk4J 9oiBKGvsba9GddMf6YyRZZlx8XuI7WlZn1Z/2Xye1FO1aL162Cw+oCCatnujgHxKQFpW TpV/G2InRmaV64g+OOO7gqq/cByGlw2sMTleki6FR2qO4ZKxhG1eQonyii222wEhev6R MA1JEuo5A/R2pLJBEvd6CRGLO9xtqlOawvHWFRgjQiqetqiPq3bQWohN8GEm54Qh4hMR /VpKJaetP/73N7igFKOGDUQM7ZrY0o0K3wUCmvn9mKcV4c0yQ6diFbOShZ/afDgLH4QC Cjgg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=kldKeb8kARboS/NIYVE9yvFOhNZdEhTtxG/Vo2Vmbl8=; b=qNVW2pGmS9ZBi+wnVty/Fghfm0FOktUoMWzc+bNqnOBmG/V2lUjLU74ECYbsh3XVze gzdzL3dCPv77177wvMvVcfYC9OQG/KaPW19+XdTycQGEQaiUWR1AZeEJqEQxdp+CgCN7 ZSzMIDzNtTADC8LTBt2r+AaNjqqzyig1afL5F8DCrlPiZnlW8FiWe8QdfWLl4ucF40H7 lY0tujOnEn881ZvvbxWt83sWh7QZHREHT3CWAkcsoX09OGZ2D+s+1vBUwW5mp9HpHbGz Bwjt//iY3m/Y7/owItc62dSov3F5Tk+qiCR9feWHqriGbNU2PhkbdEHPe6am9C0lxLKq bOTg== X-Gm-Message-State: APjAAAVd1XpYUs7ctgSlw9x9kHmndXXhnztvtQiPCbE8VkJAzxAX4cif aGKeYz8nbSIIroAUWg1wBlABeSUzW42M33vjDhoTGDft0ea5UQ== X-Google-Smtp-Source: APXvYqysh83VEw86KqGY7z5DCl8WYiAJEAtBjn0lJ46du2dPLIq28noHmq3z6EFQxY9EuTUqip1O7jlbmb6kIP+k//c= X-Received: by 2002:aa7:8085:: with SMTP id v5mr6379374pff.165.1565385692192; Fri, 09 Aug 2019 14:21:32 -0700 (PDT) MIME-Version: 1.0 References: <5d4d7164795c7_43f9afa8b58b0242711@29afa0b1-fa00-407e-a40e-a8edb471126a.mail> In-Reply-To: <5d4d7164795c7_43f9afa8b58b0242711@29afa0b1-fa00-407e-a40e-a8edb471126a.mail> From: Nick Desaulniers Date: Fri, 9 Aug 2019 14:21:21 -0700 Message-ID: Subject: Fwd: [CRON] Broken: ClangBuiltLinux/continuous-integration#895 (master - 2a3984b) To: linux-next@vger.kernel.org, Stephen Rothwell , Will Deacon , Catalin Marinas , pauld@redhat.com Cc: Linux ARM , Mark Brown , Mark Rutland , Arnd Bergmann , Peter Zijlstra Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Sender: linux-next-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org Did anyone report any issue with last night's -next for arm64? Some kind of deadlock in online_fair_sched_group. [ 15.256790] =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D [ 15.257025] WARNING: inconsistent lock state [ 15.257243] 5.3.0-rc3-next-20190809 #1 Not tainted [ 15.257393] -------------------------------- [ 15.257526] inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage. [ 15.258096] init/1 [HC0[0]:SC0[0]:HE1:SE1] takes: [ 15.258522] (____ptrval____) (&rq->lock){?.-.}, at: online_fair_sched_group+0x78/0xe4 [ 15.259170] {IN-HARDIRQ-W} state was registered at: [ 15.259658] lock_acquire+0x1dc/0x228 [ 15.259940] _raw_spin_lock+0x40/0x54 [ 15.260251] scheduler_tick+0x50/0xfc [ 15.260491] update_process_times+0x80/0x98 [ 15.260677] tick_periodic+0xd8/0xf0 [ 15.260910] tick_handle_periodic+0x30/0x94 [ 15.261126] arch_timer_handler_virt+0x34/0x40 [ 15.261332] handle_percpu_devid_irq+0x1a8/0x3c4 [ 15.261495] __handle_domain_irq+0x7c/0xbc [ 15.261689] gic_handle_irq+0x48/0xac [ 15.261881] el1_irq+0xbc/0x180 [ 15.262024] _raw_spin_unlock_irqrestore+0x4c/0x80 [ 15.262263] tty_register_ldisc+0x58/0x6c [ 15.262430] n_tty_init+0x18/0x20 [ 15.262615] console_init+0x20/0x3e4 [ 15.262820] start_kernel+0x248/0x3c4 [ 15.263079] irq event stamp: 220201 [ 15.263362] hardirqs last enabled at (220201): [] _raw_spin_unlock_irqrestore+0x48/0x80 [ 15.263731] hardirqs last disabled at (220200): [] _raw_spin_lock_irqsave+0x30/0x7c [ 15.264046] softirqs last enabled at (220196): [] irq_exit+0x114/0x134 [ 15.264419] softirqs last disabled at (220185): [] irq_exit+0x114/0x134 [ 15.264751] [ 15.264751] other info that might help us debug this: [ 15.265044] Possible unsafe locking scenario: [ 15.265044] [ 15.265256] CPU0 [ 15.265458] ---- [ 15.265615] lock(&rq->lock); [ 15.265898] [ 15.266087] lock(&rq->lock); [ 15.266353] [ 15.266353] *** DEADLOCK *** [ 15.266353] [ 15.266574] no locks held by init/1. [ 15.266784] [ 15.266784] stack backtrace: [ 15.267120] CPU: 0 PID: 1 Comm: init Not tainted 5.3.0-rc3-next-20190809= #1 [ 15.267341] Hardware name: linux,dummy-virt (DT) [ 15.267756] Call trace: [ 15.267928] dump_backtrace+0x0/0x140 [ 15.268159] show_stack+0x14/0x1c [ 15.268341] dump_stack+0xa8/0x104 [ 15.268482] mark_lock+0xda0/0xda8 [ 15.268728] __lock_acquire+0x300/0x858 [ 15.268869] lock_acquire+0x1dc/0x228 [ 15.269057] _raw_spin_lock+0x40/0x54 [ 15.269201] online_fair_sched_group+0x78/0xe4 [ 15.269392] sched_online_group+0x88/0xac [ 15.269591] sched_autogroup_create_attach+0xcc/0x12c [ 15.269765] ksys_setsid+0xe8/0xec [ 15.269990] __arm64_sys_setsid+0xc/0x18 [ 15.270178] el0_svc_common+0x9c/0x15c [ 15.270317] el0_svc_handler+0x5c/0x64 [ 15.270493] el0_svc+0x8/0xc https://travis-ci.com/ClangBuiltLinux/continuous-integration/jobs/223856448 Guessing related to commit 6b8fd01b21f5 ("sched/fair: Use rq_lock/unlock in online_fair_sched_group") ---------- Forwarded message --------- From: Travis CI Date: Fri, Aug 9, 2019 at 6:13 AM Subject: [CRON] Broken: ClangBuiltLinux/continuous-integration#895 (master - 2a3984b) To: , ClangBuiltLinux / continuous-integration master Build #895 was broken 3 hrs, 29 mins, and 39 secs Nathan Chancellor 2a3984b CHANGESET =E2=86=92 Merge pull request #196 from nathanchance/ppc64 PPC64 big endian --=20 Thanks, ~Nick Desaulniers