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@xxxxxxxxxxxxxxx/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] [<ffffffff81389887>] dump_stack+0x46/0x58 [273059.043599] [<ffffffff810370a9>] warn_slowpath_common+0x77/0x91 [273059.043674] [<ffffffffa027d623>] ? inode_tree_add+0xc2/0x13f [btrfs] [273059.043738] [<ffffffff810370d8>] warn_slowpath_null+0x15/0x17 [273059.043810] [<ffffffffa027d623>] inode_tree_add+0xc2/0x13f [btrfs] [273059.043885] [<ffffffffa02840cb>] btrfs_iget+0x46c/0x4b6 [btrfs] [273059.043958] [<ffffffffa028421a>] relink_extent_backref+0x105/0x6cf [btrfs] [273059.044032] [<ffffffffa0284fa1>] btrfs_finish_ordered_io+0x7bd/0x877 [btrfs] [273059.044155] [<ffffffffa028506b>] finish_ordered_fn+0x10/0x12 [btrfs] [273059.044232] [<ffffffffa02a00d1>] worker_loop+0x15e/0x495 [btrfs] [273059.044307] [<ffffffffa029ff73>] ? btrfs_queue_worker+0x269/0x269 [btrfs] [273059.044372] [<ffffffff8104ee9a>] kthread+0xcd/0xd5 [273059.044434] [<ffffffff8104edcd>] ? kthread_freezable_should_stop+0x43/0x43 [273059.044498] [<ffffffff8138e6bc>] ret_from_fork+0x7c/0xb0 [273059.044560] [<ffffffff8104edcd>] ? kthread_freezable_should_stop+0x43/0x43 [273059.044624] ---[ end trace 714ee71af93c5bba ]--- [366782.707007] ------------[ cut here ]------------
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