Re: Bug in 'btrfs filesystem du' ?

[Andrei Borzenkov <arvidjaar@gmail.com>]

28.06.2016 19:55, Henk Slager пишет:
> On Tue, Jun 28, 2016 at 2:56 PM, M G Berberich <btrfs@oss.m-berberich.de> wrote:
>> Hello,
>>
>> Am Montag, den 27. Juni schrieb Henk Slager:
>>> On Mon, Jun 27, 2016 at 3:33 PM, M G Berberich <btrfs@oss.m-berberich.de> wrote:
>>>> Am Montag, den 27. Juni schrieb M G Berberich:
>>>>> after a balance ‘btrfs filesystem du’ probably shows false data about
>>>>> shared data.
>>>>
>>>> Oh, I forgot: I have btrfs-progs v4.5.2 and kernel 4.6.2.
>>>
>>> With  btrfs-progs v4.6.1 and kernel 4.7-rc5, the numbers are correct
>>> about shared data.
>>
>> I tested with kernels 4.6.3 and 4.7-rc5 and with btrfs-progs 4.5.2 and
>> 4.61.
> Also with kernel 4.6.2-1-default and btrfs-progs v4.5.3+20160516
> (current stock opensuse tumbleweed) I cannot reproduce the problem.
> 

I confirm the same behavior on openSUSE Tumbleweed with kernel 4.6.2-1.2
and btrfsprogs 4.5.3-1.2 using provided script.

>  The later kernel with two patches to make the kernel work:
>> https://lkml.org/lkml/2016/6/1/310 https://lkml.org/lkml/2016/6/1/311 .
> ... so these seem to cause the problem
> 
> 
>> You can see the script¹ I used (do-btrfs-du-test) and the logs at
>> http://m-berberich.de/btrfs/
>>
>> In all four cases, ‘btrfs fi du -s .’ reports
>>
>>      Total   Exclusive  Set shared  Filename
>>   59.38MiB       0.00B    29.69MiB  .
>>
>> befor balance and
>>
>>      Total   Exclusive  Set shared  Filename
>>   59.38MiB    59.38MiB       0.00B  .
>>
>> after balance.
>>
>> Disclaimer: The script works for me, no guaranty at all.
>>
>>         MfG
>>         bmg
>> __________
>> ¹ Disclaimer: The script works for me, no guaranty at all.
>> --
>> „Des is völlig wurscht, was heut beschlos- | M G Berberich
>>  sen wird: I bin sowieso dagegn!“          | mail@m-berberich.de
>> (SPD-Stadtrat Kurt Schindler; Regensburg)  |
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