linux-ext4 - Re: delayed block allocation failed with error -28

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Message-ID: <alpine.LFD.2.00.1403101805500.8681@localhost.localdomain>
Date:	Mon, 10 Mar 2014 18:07:36 +0100 (CET)
From:	Lukáš Czerner <lczerner@...hat.com>
To:	Yan Rui <rui.yan@...il.com>
cc:	linux-ext4@...r.kernel.org
Subject: Re: delayed block allocation failed with error -28

On Tue, 11 Mar 2014, Yan Rui wrote:

> Date: Tue, 11 Mar 2014 00:09:47 +0800
> From: Yan Rui <rui.yan@...il.com>
> To: linux-ext4@...r.kernel.org
> Cc: Yan Rui <rui.yan@...il.com>
> Subject: delayed block allocation failed with error -28
> 
> Hi,
> 
> /var/log/message says below and no hardware related issues found.
> 
> Mar 10 16:20:56 d02 auditd[4056]: Audit daemon rotating log files
> Mar 10 16:25:13 d02 kernel: EXT4-fs (sda): delayed block allocation
> failed for inode 47579238 at logical offset 395 with max blocks 1654
> with error -28
> Mar 10 16:25:13 d02 kernel:
> Mar 10 16:25:13 d02 kernel: This should not happen!!  Data will be lost
> Mar 10 16:25:13 d02 kernel: Total free blocks count 0
> Mar 10 16:25:13 d02 kernel: Free/Dirty block details
> Mar 10 16:25:13 d02 kernel: free_blocks=0
> Mar 10 16:25:13 d02 kernel: dirty_blocks=-4294772779
> Mar 10 16:25:13 d02 kernel: Block reservation details
> Mar 10 16:25:13 d02 kernel: i_reserved_data_blocks=1654
> Mar 10 16:25:13 d02 kernel: i_reserved_meta_blocks=7
> Mar 10 16:25:13 d02 kernel: EXT4-fs (sda): delayed block allocation
> failed for inode 58851678 at logical offset 0 with max blocks 2048
> with error -28
> Mar 10 16:25:13 d02 kernel:
> Mar 10 16:25:13 d02 kernel: This should not happen!!  Data will be lost
> Mar 10 16:25:13 d02 kernel: Total free blocks count 0
> Mar 10 16:25:13 d02 kernel: Free/Dirty block details
> Mar 10 16:25:13 d02 kernel: free_blocks=0
> Mar 10 16:25:13 d02 kernel: dirty_blocks=-4294772779
> Mar 10 16:25:13 d02 kernel: Block reservation details
> Mar 10 16:25:13 d02 kernel: i_reserved_data_blocks=2049
> Mar 10 16:25:13 d02 kernel: i_reserved_meta_blocks=7
> 
> [root@d02 ~]# uname -a
> Linux d02 2.6.32-358.11.1.el6.x86_64 #1 SMP Wed Jun 12 03:34:52 UTC
> 2013 x86_64 x86_64 x86_64 GNU/Linux

Hi,

It seems that you're using RHEL6 kernel. I do not think that anyone
on this list will be able to help you with this kernel since it is
very much different from current upstream at this point.

Please contact you Red Hat support so we can deal with this issue.

Thanks!
-Lukas

> 
> [root@d02 ~]# tune2fs -l /dev/sda
> tune2fs 1.41.12 (17-May-2010)
> Filesystem volume name:   <none>
> Last mounted on:          /data/5aacbdff-697f-4b70-9b55-f912d41f57da
> Filesystem UUID:          5aacbdff-697f-4b70-9b55-f912d41f57da
> Filesystem magic number:  0xEF53
> Filesystem revision #:    1 (dynamic)
> Filesystem features:      has_journal ext_attr resize_inode dir_index
> filetype needs_recovery extent flex_bg sparse_super large_file
> huge_file uninit_bg dir_nlink extra_isize
> Filesystem flags:         signed_directory_hash
> Default mount options:    (none)
> Filesystem state:         clean
> Errors behavior:          Continue
> Filesystem OS type:       Linux
> Inode count:              183148544
> Block count:              732566646
> Reserved block count:     0
> Free blocks:              41810477
> Free inodes:              182809495
> First block:              0
> Block size:               4096
> Fragment size:            4096
> Reserved GDT blocks:      849
> Blocks per group:         32768
> Fragments per group:      32768
> Inodes per group:         8192
> Inode blocks per group:   512
> Flex block group size:    16
> Filesystem created:       Fri Jul  5 10:11:15 2013
> Last mount time:          Mon Jan 27 06:09:43 2014
> Last write time:          Mon Jan 27 06:09:43 2014
> Mount count:              18
> Maximum mount count:      20
> Last checked:             Fri Jul  5 10:11:15 2013
> Check interval:           15552000 (6 months)
> Next check after:         Wed Jan  1 10:11:15 2014
> Lifetime writes:          6275 GB
> Reserved blocks uid:      0 (user root)
> Reserved blocks gid:      0 (group root)
> First inode:              11
> Inode size:               256
> Required extra isize:     28
> Desired extra isize:      28
> Journal inode:            8
> Default directory hash:   half_md4
> Directory Hash Seed:      e0d65199-15d8-4c39-aeeb-1d6cf3c6aebf
> Journal backup:           inode blocks
> 
> The number of dirty_blocks looks weird,  is it a known bug?
> 
> Regards,
> Rui
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