Re: Apparent metadata corruption (file that simultaneously does/does not exist) on kernel 3.17.3

[Qu Wenruo <quwenruo@cn.fujitsu.com>]

Hi,

What's the btrfsck output? Without --repair option.

Also, if it is OK for you, would you please dump the btrfs with 
'btrfs-image' command?
'-c 9' option is highly recommended considering the size of it.
This will helps a lot for developers to test the btrfsck repair function.

Thanks,
Qu

-------- Original Message --------
Subject: Apparent metadata corruption (file that simultaneously 
does/does not exist) on kernel 3.17.3
From: Daniel Miranda <danielkza2@gmail.com>
To: <linux-btrfs@vger.kernel.org>
Date: 2014年11月25日 13:04
> Hello,
>
> After I had some brief stability issues with my computer, it seems
> some form of metadata corruption took place in my BTRFS filesystem,
> and now a particular file seems to exist, but I cannot access any
> details on it or delete it.
>
> If I try to `ls` in the directory it is in, that's what I get:
>
> ls: cannot access string.h: No such file or directory
> total 0
> drwxr-xr-x. 1 danielkza mock 16 Nov 21 14:18 ./
> drwxr-xr-x. 1 danielkza mock  6 Nov 21 14:18 ../
> -?????????? ? ?         ?     ?            ? string.h
>
> If I try to delete it I get:
>
> rm: cannot remove ‘string.h’: No such file or directory
>
> I'm using kernel 3.17.3 from Fedora 21. I got no messages on dmesg or
> anything of the sort. I know the btrfs fsck situation is complicated,
> but is there any utility I should use to try and repair this? Losing
> this file is not a problem, it's just one header from the kernel I was
> building.
>
> Regards,
> Daniel Miranda
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