Re: ext4: initial error at 1288471943: ext4_mb_generate_buddy:718

[Mathias BurÃn]

On 13 December 2010 23:13, Mathias BurÃn <mathias.buren@xxxxxxxxx> wrote:
> On 13 December 2010 23:13, Mathias BurÃn <mathias.buren@xxxxxxxxx> wrote:
>> Hi, I'm running 2.6.36 and I'm seeing this about once per day in dmesg:
>>
>> EXT4-fs (dm-0): error count: 1
>> EXT4-fs (dm-0): initial error at 1288471943: ext4_mb_generate_buddy:718
>> EXT4-fs (dm-0): last error at 1288471943: ext4_mb_generate_buddy:718
>>
>> uptime && dmesg | grep ' last error at 1288471943' | wc -l
>> Â23:08:29 up 20 days, Â5:46, Â1 user, Âload average: 0.69, 0.85, 0.83
>>
>> e2fsprogs 1.41.12-1
>> lvm2 2.02.78-1
>>
>> As you can see it's always the exact same message. I've run fsck on
>> the system and no errors were found. dm-0 is the root filesystem, it
>> all looks like this:
>>
>>
>> lrwxrwxrwx 1 root root 7 Nov 23 17:22 /dev/mapper/lvmssd-root -> ../dm-0
>>
>> Â--- Volume group ---
>> ÂVG Name        lvmssd
>> ÂSystem ID
>> ÂFormat        Âlvm2
>> ÂMetadata Areas    Â1
>> ÂMetadata Sequence No Â27
>> ÂVG Access       read/write
>> ÂVG Status       resizable
>> ÂMAX LV Â Â Â Â Â Â Â Â0
>> ÂCur LV Â Â Â Â Â Â Â Â1
>> ÂOpen LV Â Â Â Â Â Â Â 1
>> ÂMax PV Â Â Â Â Â Â Â Â0
>> ÂCur PV Â Â Â Â Â Â Â Â1
>> ÂAct PV Â Â Â Â Â Â Â Â1
>> ÂVG Size        53.80 GiB
>> ÂPE Size        4.00 MiB
>> ÂTotal PE Â Â Â Â Â Â Â13772
>> ÂAlloc PE / Size    13772 / 53.80 GiB
>> ÂFree ÂPE / Size    0 / 0
>> ÂVG UUID Â Â Â Â Â Â Â 4jqUcB-jEzl-pKT1-mcPU-soCV-2YXT-cuTk9v
>>
>> ...
>>
>> Âhdparm -i /dev/sda
>>
>> /dev/sda:
>>
>> ÂModel=Corsair CSSD-F60GB2, FwRev=1.1, SerialNo=10326505580009990027
>> ÂConfig={ Fixed }
>> ÂRawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
>> ÂBuffType=unknown, BuffSize=unknown, MaxMultSect=16, MultSect=1
>> ÂCurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=117231408
>> ÂIORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
>> ÂPIO modes: Âpio0 pio1 pio2 pio3 pio4
>> ÂDMA modes: Âmdma0 mdma1 mdma2
>> ÂUDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
>> ÂAdvancedPM=no WriteCache=enabled
>> ÂDrive conforms to: unknown: ÂATA/ATAPI-2,3,4,5,6,7
>>
>> Â* signifies the current active mode
>>
>> Is this message dangerous? Can I disable it somehow? Why is it showing up? Etc.
>>
>>
>> Thanks,
>> // Mathias
>>
>
> Oh, and can you please cc me as I'm not subscribed!
>
> // Mathias
>

.. and ext4 mount options are:

/dev/disk/by-label/ssd_root on / type ext4 (rw,noatime,barrier=0,data=writeback)

I think that is all.

// Mathias
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