From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cn.fujitsu.com ([222.73.24.84]:34870 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751344AbaAMHHM (ORCPT ); Mon, 13 Jan 2014 02:07:12 -0500 Message-ID: <52D3905E.9090606@cn.fujitsu.com> Date: Mon, 13 Jan 2014 15:06:06 +0800 From: Wang Shilong MIME-Version: 1.0 To: Tomasz Chmielewski CC: "linux-btrfs@vger.kernel.org" Subject: Re: kernel BUG at fs/btrfs/inode.c:1593! with 3.13.0-rc7 References: <20140112234702.63f4750a@virtall.com> In-Reply-To: <20140112234702.63f4750a@virtall.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 01/13/2014 06:47 AM, Tomasz Chmielewski wrote: Hello Tomasz, Chris recently sent a patch that addressed a race condition with loading inode, i think it might be related to your first dmesg warning. Chris' patch url can be seen: https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg30332.html Thanks, Wang > Just had this on a btrfs filesystem running 3.13-rc7. > > The filesystem was working fine till now and was passing balance and > scrub properly without any issues a couple of days ago: > > [273059.042280] ------------[ cut here ]------------ > [273059.042369] WARNING: CPU: 6 PID: 20754 at fs/btrfs/inode.c:4721 inode_tree_add+0xc2/0x13f [btrfs]() > [273059.042484] Modules linked in: ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables cpufreq_ondemand cpufreq_conservative cpufreq_powersave cpufreq_stats bridge stp llc ipv6 btrfs xor raid6_pq zlib_deflate loop lpc_ich mfd_core i2c_i801 i2c_core pcspkr button video ehci_pci ehci_hcd acpi_cpufreq ext4 crc16 jbd2 mbcache raid1 sg sd_mod ahci libahci libata scsi_mod r8169 mii > [273059.042901] CPU: 6 PID: 20754 Comm: btrfs-endio-wri Tainted: G W 3.13.0-rc7 #1 > [273059.043014] Hardware name: System manufacturer System Product Name/P8H77-M PRO, BIOS 1101 02/04/2013 > [273059.043129] 0000000000000009 ffff8807a7959b18 ffffffff81389887 0000000000000006 > [273059.043245] 0000000000000000 ffff8807a7959b58 ffffffff810370a9 ffff8801b0d21040 > [273059.043360] ffffffffa027d623 ffff880637209968 ffff88020a8bde88 ffff880667c1b800 > [273059.043476] Call Trace: > [273059.043536] [] dump_stack+0x46/0x58 > [273059.043599] [] warn_slowpath_common+0x77/0x91 > [273059.043674] [] ? inode_tree_add+0xc2/0x13f [btrfs] > [273059.043738] [] warn_slowpath_null+0x15/0x17 > [273059.043810] [] inode_tree_add+0xc2/0x13f [btrfs] > [273059.043885] [] btrfs_iget+0x46c/0x4b6 [btrfs] > [273059.043958] [] relink_extent_backref+0x105/0x6cf [btrfs] > [273059.044032] [] btrfs_finish_ordered_io+0x7bd/0x877 [btrfs] > [273059.044155] [] finish_ordered_fn+0x10/0x12 [btrfs] > [273059.044232] [] worker_loop+0x15e/0x495 [btrfs] > [273059.044307] [] ? btrfs_queue_worker+0x269/0x269 [btrfs] > [273059.044372] [] kthread+0xcd/0xd5 > [273059.044434] [] ? kthread_freezable_should_stop+0x43/0x43 > [273059.044498] [] ret_from_fork+0x7c/0xb0 > [273059.044560] [] ? kthread_freezable_should_stop+0x43/0x43 > [273059.044624] ---[ end trace 714ee71af93c5bba ]--- > [366782.707007] ------------[ cut here ]------------ >