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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham 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 92968C43381 for ; Fri, 22 Mar 2019 04:17:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 637E521900 for ; Fri, 22 Mar 2019 04:17:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726165AbfCVERe (ORCPT ); Fri, 22 Mar 2019 00:17:34 -0400 Received: from james.kirk.hungrycats.org ([174.142.39.145]:38364 "EHLO james.kirk.hungrycats.org" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725781AbfCVERd (ORCPT ); Fri, 22 Mar 2019 00:17:33 -0400 Received: by james.kirk.hungrycats.org (Postfix, from userid 1002) id 149F4273342; Fri, 22 Mar 2019 00:17:32 -0400 (EDT) Date: Fri, 22 Mar 2019 00:17:32 -0400 From: Zygo Blaxell To: linux-btrfs@vger.kernel.org Subject: Kernels 4.15..5.0.3: "WARNING: CPU: 2 PID: 4150 at fs/fs-writeback.c:2363 __writeback_inodes_sb_nr+0xa9/0xc0" Message-ID: <20190322041731.GF16651@hungrycats.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="QNDPHrPUIc00TOLW" Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org --QNDPHrPUIc00TOLW Content-Type: text/plain; charset=us-ascii Content-Disposition: inline When filesystems are mounted flushoncommit, I get this warning roughly every 30 seconds: [ 4575.142805] WARNING: CPU: 3 PID: 4150 at fs/fs-writeback.c:2363 __writeback_inodes_sb_nr+0xa9/0xc0 [ 4575.145567] Modules linked in: crct10dif_pclmul crc32_pclmul dm_cache_smq crc32c_intel dm_cache snd_pcm ghash_clmulni_intel aesni_intel sr_mod dm_persistent_data ppdev joydev dm_bio_prison aes_x86_64 crypto_simd snd_timer dm_bufio cryptd cdrom snd glue_helper dm_mod parport_pc soundcore sg floppy parport pcspkr psmouse bochs_drm rtc_cmos ide_pci_generic piix input_leds i2c_piix4 ide_core serio_raw evbug qemu_fw_cfg evdev ip_tables x_tables ipv6 crc_ccitt autofs4 [ 4575.160021] CPU: 3 PID: 4150 Comm: btrfs-transacti Tainted: G W 5.0.3-zb64+ #1 [ 4575.162484] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 4575.164505] RIP: 0010:__writeback_inodes_sb_nr+0xa9/0xc0 [ 4575.165809] Code: 0f b6 d2 e8 b9 f8 ff ff 48 89 ee 48 89 df e8 0e f8 ff ff 48 8b 44 24 48 65 48 33 04 25 28 00 00 00 75 0b 48 83 c4 50 5b 5d c3 <0f> 0b eb cb e8 4e e9 d6 ff 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 [ 4575.171927] RSP: 0018:ffffa9cac0eabde8 EFLAGS: 00010246 [ 4575.173045] RAX: 0000000000000000 RBX: ffff9353e23af000 RCX: 0000000000000000 [ 4575.175639] RDX: 0000000000000002 RSI: 0000000000030c67 RDI: ffffa9cac0eabe30 [ 4575.177619] RBP: ffffa9cac0eabdec R08: ffffa9cac0eabdf0 R09: ffff9353f12da000 [ 4575.179736] R10: 0000000000000000 R11: 0000000000000001 R12: ffff9353e1980000 [ 4575.181661] R13: ffff9353e1981430 R14: ffff9353f27e4260 R15: ffff9353e1981518 [ 4575.183871] FS: 0000000000000000(0000) GS:ffff9353f6800000(0000) knlGS:0000000000000000 [ 4575.185940] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4575.188072] CR2: 00007fb81841fa20 CR3: 00000002218c0006 CR4: 00000000001606e0 [ 4575.190094] Call Trace: [ 4575.190828] btrfs_commit_transaction+0x7a6/0x9e0 [ 4575.192115] ? start_transaction+0x91/0x4d0 [ 4575.193197] transaction_kthread+0x146/0x180 [ 4575.194415] kthread+0x106/0x140 [ 4575.195403] ? btrfs_cleanup_transaction+0x620/0x620 [ 4575.196903] ? kthread_park+0x90/0x90 [ 4575.198412] ret_from_fork+0x3a/0x50 [ 4575.199374] irq event stamp: 54922780 [ 4575.200218] hardirqs last enabled at (54922779): [] _raw_spin_unlock_irqrestore+0x32/0x60 [ 4575.202753] hardirqs last disabled at (54922780): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 4575.205921] softirqs last enabled at (54922378): [] __do_softirq+0x3a4/0x45f [ 4575.208350] softirqs last disabled at (54922361): [] irq_exit+0xe4/0xf0 [ 4575.210616] ---[ end trace 5309dcf3a1920eca ]--- For my own kernel builds I just comment out the line in fs-writeback.c, but that's not a real solution. --QNDPHrPUIc00TOLW Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQSnOVjcfGcC/+em7H2B+YsaVrMbnAUCXJRh1wAKCRCB+YsaVrMb nKEjAKDbCfjr+ksZ29H5ItkCi5x5x8ITxgCfcEAHvUcuzKvgCusHTrr0LzxvGaU= =wyQh -----END PGP SIGNATURE----- --QNDPHrPUIc00TOLW--