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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 747BFC433EF for ; Thu, 4 Nov 2021 17:16:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 54C62604DA for ; Thu, 4 Nov 2021 17:16:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233808AbhKDRTK (ORCPT ); Thu, 4 Nov 2021 13:19:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54078 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233809AbhKDRTH (ORCPT ); Thu, 4 Nov 2021 13:19:07 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B945FC061714; Thu, 4 Nov 2021 10:16:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=ltenyXnrsDdntMO+B9vjFdERdO2QMdRjBCFjFF1YnzM=; b=s1zqU90WpXefrE9/qFNAhs06pj PNIRGvj9Mo14MJwqJ2YvpwjEmCdCt7LspW4QsKgGD1laP1jOSckBmVZSTp6r2ds88QER8mzA787QJ NBYJ2SxLq732Xen5/Ct/GCwMFrQcd6k0OSXwOzfsBonUWTwjoiwTC1ycb9OjWXTbNUehGGvEysWIx yqOfBqztiPIAdXY5XsB9tw6wppnhlUKhrdqUK6gsgwrIT4aSfbN8f3C3TuP1fmlnVxeFS0i8slsmU 4f9MGKQwAc0LVY54eZ/6ogbuspBewtHOid/fEM7hUJsoeLtoGrC6UAFlvAS0g8O+i6H2ULnvlFJu7 f6a7rA/w==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=worktop.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1migHi-0060wt-Q1; Thu, 04 Nov 2021 17:12:46 +0000 Received: by worktop.programming.kicks-ass.net (Postfix, from userid 1000) id 545E19869DF; Thu, 4 Nov 2021 18:12:18 +0100 (CET) Date: Thu, 4 Nov 2021 18:12:18 +0100 From: Peter Zijlstra To: Thomas Gleixner Cc: Josef Johansson , boris.ostrovsky@oracle.com, helgaas@kernel.org, jgross@suse.com, linux-pci@vger.kernel.org, maz@kernel.org, xen-devel@lists.xenproject.org, Jason Andryuk , David Woodhouse , Peter Jones , linux-fbdev@vger.kernel.org, LKML , x86@kernel.org, Vincent Guittot Subject: Re: [PATCH] PCI/MSI: Move non-mask check back into low level accessors Message-ID: <20211104171218.GD174703@worktop.programming.kicks-ass.net> References: <90277228-cf14-0cfa-c95e-d42e7d533353@oderland.se> <20211025012503.33172-1-jandryuk@gmail.com> <87fssmg8k4.ffs@tglx> <87cznqg5k8.ffs@tglx> <89d6c2f4-4d00-972f-e434-cb1839e78598@oderland.se> <5b3d4653-0cdf-e098-0a4a-3c5c3ae3977b@oderland.se> <87ee7w6bxi.ffs@tglx> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87ee7w6bxi.ffs@tglx> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Nov 04, 2021 at 12:45:29AM +0100, Thomas Gleixner wrote: > On Wed, Oct 27 2021 at 17:29, Josef Johansson wrote: > > ------------[ cut here ]------------ > > cfs_rq->avg.load_avg || cfs_rq->avg.util_avg || cfs_rq->avg.runnable_avg > > installing Xen timer for CPU 4 > > WARNING: CPU: 3 PID: 455 at kernel/sched/fair.c:3339 __update_blocked_fair+0x49b/0x4b0 > > /* > * _avg must be null when _sum are null because _avg = _sum / divider > * Make sure that rounding and/or propagation of PELT values never > * break this. > */ > SCHED_WARN_ON(cfs_rq->avg.load_avg || > cfs_rq->avg.util_avg || > cfs_rq->avg.runnable_avg); > > PeterZ, does that ring any bell? Hurrr.. I thought we fixed all those. Vincent? > > Modules linked in: snd_seq_dummy snd_hrtimer snd_seq snd_seq_device snd_timer nf_tables nfnetlink vfat fat intel_rapl_msr think_lmi firmware_attributes_class wmi_bmof intel_rapl_common pcspkr uvcvideo videobuf2_vmalloc videobuf2_memops joydev videobuf2_v4l2 sp5100_tco k10temp videobuf2_common i2c_piix4 iwlwifi videodev mc cfg80211 thinkpad_acpi ipmi_devintf ucsi_acpi platform_profile typec_ucsi ledtrig_audio ipmi_msghandler r8169 rfkill typec snd wmi soundcore video i2c_scmi fuse xenfs ip_tables dm_thin_pool dm_persistent_data dm_bio_prison dm_crypt trusted asn1_encoder hid_multitouch amdgpu crct10dif_pclmul crc32_pclmul crc32c_intel gpu_sched i2c_algo_bit drm_ttm_helper ghash_clmulni_intel ttm serio_raw drm_kms_helper cec sdhci_pci cqhci sdhci xhci_pci drm xhci_pci_renesas nvme xhci_hcd ehci_pci mmc_core ehci_hcd nvme_core xen_acpi_processor xen_privcmd xen_pciback xen_blkback xen_gntalloc xen_gntdev xen_evtchn uinput > > CPU: 3 PID: 455 Comm: kworker/3:2 Tainted: G W --------- --- 5.15.0-0.rc7.0.fc32.qubes.x86_64 #1 > > Hardware name: LENOVO 20Y1S02400/20Y1S02400, BIOS R1BET65W(1.34 ) 06/17/2021 > > Workqueue: 0x0 (events) > > RIP: e030:__update_blocked_fair+0x49b/0x4b0 > > Code: 6b fd ff ff 49 8b 96 48 01 00 00 48 89 90 50 09 00 00 e9 ff fc ff ff 48 c7 c7 10 7a 5e 82 c6 05 f3 35 9e 01 01 e8 1f f3 b2 00 <0f> 0b 41 8b 86 38 01 00 00 e9 c6 fc ff ff 0f 1f 80 00 00 00 00 0f > > RSP: e02b:ffffc900410d7ce0 EFLAGS: 00010082 > > RAX: 0000000000000000 RBX: 0000000000000018 RCX: ffff8881406d8a08 > > RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff8881406d8a00 > > RBP: ffff8881406e9800 R08: 0000000000000048 R09: ffffc900410d7c78 > > R10: 0000000000000049 R11: 000000002d2d2d2d R12: ffff8881406e9f80 > > R13: ffff8881406e9e40 R14: ffff8881406e96c0 R15: 0000000000000000 > > FS: 0000000000000000(0000) GS:ffff8881406c0000(0000) knlGS:0000000000000000 > > CS: 10000e030 DS: 0000 ES: 0000 CR0: 0000000080050033 > > CR2: 0000782e51820000 CR3: 0000000002810000 CR4: 0000000000050660 > > Call Trace: > > update_blocked_averages+0xa8/0x180 > > newidle_balance+0x175/0x380 > > pick_next_task_fair+0x39/0x3e0 > > pick_next_task+0x4c/0xbd0 > > ? dequeue_task_fair+0xba/0x390 > > __schedule+0x13a/0x570 > > schedule+0x44/0xa0 > > worker_thread+0xc0/0x320 > > ? process_one_work+0x390/0x390 > > kthread+0x10f/0x130 > > ? set_kthread_struct+0x40/0x40 > > ret_from_fork+0x22/0x30