Re: filesystem corrupt - error -117

[Qu Wenruo <quwenruo.btrfs@gmx.com>]

On 2021/10/25 19:14, Qu Wenruo wrote:
>
>
> On 2021/10/25 19:13, Mia wrote:
>> Hi Qu,
>>
>> thanks for your response.
>> Here the output of btrfs check:
>> https://gist.github.com/lynara/1c613f7ec9448600f643a59d22c1efb2
>
> Unfortunately it's not full, and it's using an old btrfs-progs which can
> cause false alert.

My bad, gist is folding the output.

It shows no corruption for the extent tree, thus I guess the transaction
abort has prevented COW from being broken.

>
> Please use latest btrfs-progs v5.14.2 to re-check.

In that case, a newer btrfs-progs is only going to remove the false alerts.

Any clue on the workload causing the abort?

For now, I can only recommend to use newer kernel (v5.10+ I guess?) to
see if you can reproduce the problem.

Thanks,
Qu

>
> Thanks,
> Qu
>>
>> Thanks,
>> Mia
>>
>> ------ Originalnachricht ------
>> Von: "Qu Wenruo" <quwenruo.btrfs@gmx.com>
>> An: "Mia" <9speysdx24@kr33.de>; linux-btrfs@vger.kernel.org
>> Gesendet: 25.10.2021 12:55:46
>> Betreff: Re: filesystem corrupt - error -117
>>
>>>
>>>
>>> On 2021/10/25 18:53, Qu Wenruo wrote:
>>>>
>>>>
>>>> On 2021/10/25 16:46, Mia wrote:
>>>>> Hello,
>>>>> I need support since my root filesystem just went readonly :(
>>>>>
>>>>> [641955.981560] BTRFS error (device sda3): tree block 342685007872
>>>>> owner
>>>>> 7 already locked by pid=8099, extent tree corruption detected
>>>>
>>>> This line explains itself.
>>>>
>>>> Your extent tree is no corrupted, thus it allocated a new tree block
>>>
>>> I missed the "w" for the word "now"...
>>>
>>>> which is in fact already hold by other tree.
>>>>
>>>> This means your metadata is no longer protected properly by COW.
>>>>
>>>> "btrfs check" is highly recommended to expose the root cause.
>>>>
>>>>>
>>>>> root@rx1 ~ # btrfs fi show
>>>>> Label: none  uuid: 21306973-6bf3-4877-9543-633d472dcb46
>>>>>      Total devices 1 FS bytes used 189.12GiB
>>>>>      devid    1 size 319.00GiB used 199.08GiB path /dev/sda3
>>>>>
>>>>> root@rx1 ~ # btrfs fi df /
>>>>> Data, single: total=194.89GiB, used=187.46GiB
>>>>> System, single: total=32.00MiB, used=48.00KiB
>>>>> Metadata, single: total=4.16GiB, used=1.65GiB
>>>>> GlobalReserve, single: total=380.45MiB, used=0.00B
>>>>>
>>>>> root@rx1 ~ # btrfs --version
>>>>>                                                 :(
>>>>> btrfs-progs v4.20.1
>>>>>
>>>>>
>>>>> root@rx1 ~ # uname -a
>>>>> Linux rx1 4.19.0-17-amd64 #1 SMP Debian 4.19.194-3 (2021-07-18) x86_64
>>>>> GNU/Linux
>>>>
>>>> This is a little old for btrfs, but I don't think that's the cause.
>>>>
>>>> Thanks,
>>>> Qu
>>>>
>>>>>
>>>>> Hope someone can help.
>>>>> Regrads
>>>>> Mia
>>>>>
>>
>