Re: btrfs csum failed, scrub ok

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Jan Schmidt <list.btrfs@xxxxxxxxxxxxx> writes:
> On 27.03.2012 18:24, cwillu wrote:
>> On Tue, Mar 27, 2012 at 4:57 AM, Christoph Groth <cwg@xxxxxxxx> wrote:
>>> A scrub done the morning after the incident also didn't find any
>>> problems:
>>>
>>> root@mim:/home/cwg# btrfs scrub status /
>>> scrub status for 2da00153-f9ea-4d6c-a6cc-10c913d22686
>>>        scrub started at Tue Mar 27 10:37:49 2012 and finished after 3921 seconds
>>>        total bytes scrubbed: 550.20GB with 0 errors
>> 
>> If btrfs is able to find a good copy, it will fix the bad copy automatically.
>
> It does mention this in your logs, though. Grep for "repair", if it
> doesn't occur, btrfs didn't repair any failures.

"repair" doesn't occur in the logs.  Actually, there are no other
entries from btrfs.

So why didn't btrfs try to repair a block it believed to be bad?

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