From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751539AbcC3Jge (ORCPT ); Wed, 30 Mar 2016 05:36:34 -0400 Received: from mail-vk0-f66.google.com ([209.85.213.66]:33439 "EHLO mail-vk0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750746AbcC3Jgc (ORCPT ); Wed, 30 Mar 2016 05:36:32 -0400 MIME-Version: 1.0 Reply-To: sedat.dilek@gmail.com In-Reply-To: References:

<20160327204810.GW6356@twins.programming.kicks-ass.net> <20160329084701.GA9393@gmail.com> Date: Wed, 30 Mar 2016 11:36:31 +0200 Message-ID: Subject: Re: [Linux-v4.6-rc1] ext4: WARNING: CPU: 2 PID: 2692 at kernel/locking/lockdep.c:2017 __lock_acquire+0x180e/0x2260 From: Sedat Dilek To: Ingo Molnar Cc: Peter Zijlstra , Alfredo Alvarez Fernandez , Linus Torvalds , "Theodore Ts'o" , linux-fsdevel , LKML , Sasha Levin Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > [ 0.000000] ------------------------------------------------------- > [ 0.000000] Good, all 253 testcases passed! | > [ 0.000000] --------------------------------- > > And it's all good? > ( On shutdown I saw an(other) issue - will investigate, might not be related. ) > The initial reported issue is hard but reproducible. Mar 30 08:26:52 fambox kernel: [ 683.309212] ------------[ cut here ]------------ Mar 30 08:26:52 fambox kernel: [ 683.309221] WARNING: CPU: 3 PID: 10090 at kernel/locking/lockdep.c:2023 __lock_acquire+0x147a/0x2260 Mar 30 08:26:52 fambox kernel: [ 683.309223] DEBUG_LOCKS_WARN_ON(chain_hlocks[chain->base + j] != id) Mar 30 08:26:52 fambox kernel: [ 683.309225] Modules linked in: btrfs xor raid6_pq ntfs xfs libcrc32c ppp_deflate bsd_comp ppp_async crc_ccitt option usb_wwan cdc_ether usbserial usbnet arc4 iwldvm mac80211 bnep rfcomm i915 uvcvideo snd_hda_codec_hdmi snd_hda_codec_realtek videobuf2_vmalloc kvm_intel snd_hda_codec_generic videobuf2_memops videobuf2_v4l2 snd_hda_intel videobuf2_core kvm snd_hda_codec joydev videodev usb_storage parport_pc ppdev snd_hwdep btusb snd_hda_core btrtl i2c_algo_bit snd_pcm irqbypass btbcm iwlwifi drm_kms_helper psmouse btintel snd_seq_midi bluetooth syscopyarea snd_seq_midi_event sysfillrect snd_rawmidi serio_raw samsung_laptop sysimgblt snd_seq fb_sys_fops snd_timer cfg80211 drm snd_seq_device snd soundcore wmi mac_hid video intel_rst lpc_ich lp parport binfmt_misc hid_generic usbhid hid r8169 mii Mar 30 08:26:52 fambox kernel: [ 683.309283] CPU: 3 PID: 10090 Comm: mv Not tainted 4.6.0-rc1-4-iniza-small #1 Mar 30 08:26:52 fambox kernel: [ 683.309285] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 530U3BI/530U4BI/530U4BH/530U3BI/530U4BI/530U4BH, BIOS 13XK 03/28/2013 Mar 30 08:26:52 fambox kernel: [ 683.309287] 0000000000000000 ffff8800330af5d0 ffffffff81411c25 ffff8800330af620 Mar 30 08:26:52 fambox kernel: [ 683.309290] 0000000000000000 ffff8800330af610 ffffffff81083db1 000007e7330af610 Mar 30 08:26:52 fambox kernel: [ 683.309293] ffff880109059300 0000000000000000 0000000000000004 31419e23b49ae8f8 Mar 30 08:26:52 fambox kernel: [ 683.309296] Call Trace: Mar 30 08:26:52 fambox kernel: [ 683.309301] [] dump_stack+0x85/0xc0 Mar 30 08:26:52 fambox kernel: [ 683.309304] [] __warn+0xd1/0xf0 Mar 30 08:26:52 fambox kernel: [ 683.309307] [] warn_slowpath_fmt+0x4f/0x60 Mar 30 08:26:52 fambox kernel: [ 683.309309] [] __lock_acquire+0x147a/0x2260 Mar 30 08:26:52 fambox kernel: [ 683.309312] [] lock_acquire+0x119/0x220 Mar 30 08:26:52 fambox kernel: [ 683.309316] [] ? do_get_write_access+0x3a5/0x5d0 Mar 30 08:26:52 fambox kernel: [ 683.309319] [] _raw_spin_lock+0x38/0x50 Mar 30 08:26:52 fambox kernel: [ 683.309322] [] ? do_get_write_access+0x3a5/0x5d0 Mar 30 08:26:52 fambox kernel: [ 683.309324] [] do_get_write_access+0x3a5/0x5d0 Mar 30 08:26:52 fambox kernel: [ 683.309327] [] jbd2_journal_get_write_access+0x33/0x60 Mar 30 08:26:52 fambox kernel: [ 683.309331] [] __ext4_journal_get_write_access+0x4e/0x90 Mar 30 08:26:52 fambox kernel: [ 683.309334] [] ext4_mb_mark_diskspace_used+0x6d/0x470 Mar 30 08:26:52 fambox kernel: [ 683.309336] [] ext4_mb_new_blocks+0x3e8/0x840 Mar 30 08:26:52 fambox kernel: [ 683.309338] [] ? ext4_find_extent+0x1b7/0x320 Mar 30 08:26:52 fambox kernel: [ 683.309340] [] ? __lock_is_held+0x49/0x70 Mar 30 08:26:52 fambox kernel: [ 683.309343] [] ext4_ext_map_blocks+0xab5/0x2100 Mar 30 08:26:52 fambox kernel: [ 683.309348] [] ext4_map_blocks+0x10c/0x510 Mar 30 08:26:52 fambox kernel: [ 683.309350] [] ? __lock_is_held+0x49/0x70 Mar 30 08:26:52 fambox kernel: [ 683.309353] [] ext4_writepages+0x723/0x1010 Mar 30 08:26:52 fambox kernel: [ 683.309356] [] ? _raw_spin_unlock+0x27/0x40 Mar 30 08:26:52 fambox kernel: [ 683.309359] [] do_writepages+0x21/0x30 Mar 30 08:26:52 fambox kernel: [ 683.309362] [] __filemap_fdatawrite_range+0xaa/0xf0 Mar 30 08:26:52 fambox kernel: [ 683.309365] [] filemap_flush+0x1c/0x20 Mar 30 08:26:52 fambox kernel: [ 683.309368] [] ext4_alloc_da_blocks+0x43/0x130 Mar 30 08:26:52 fambox kernel: [ 683.309370] [] ext4_rename+0x6a1/0x8f0 Mar 30 08:26:52 fambox kernel: [ 683.309372] [] ? mark_held_locks+0x6d/0x90 Mar 30 08:26:52 fambox kernel: [ 683.309374] [] ? mutex_lock_nested+0x25f/0x3d0 Mar 30 08:26:52 fambox kernel: [ 683.309377] [] ext4_rename2+0x1d/0x30 Mar 30 08:26:52 fambox kernel: [ 683.309379] [] vfs_rename+0x601/0x900 Mar 30 08:26:52 fambox kernel: [ 683.309383] [] ? security_path_rename+0x70/0xd0 Mar 30 08:26:52 fambox kernel: [ 683.309386] [] SyS_rename+0x398/0x3b0 Mar 30 08:26:52 fambox kernel: [ 683.309389] [] entry_SYSCALL_64_fastpath+0x23/0xc1 Mar 30 08:26:52 fambox kernel: [ 683.309391] ---[ end trace 7dacba969839f82f ]--- - Sedat -