scrub to delete files

scrub to delete files

[Lubos Kolouch]

Hello,

I have a (rather historical btrfs) filesystem running here.
When I run scrub, I get a lot of messages like :
btrfs: checksum error at logical 2153033760768 on dev /dev/md2, sector 
492918400, root 5232, inode 3360637, offset 217088, length 4096, links 1 
(path: ....)

and

btrfs: unable to fixup (regular) error at logical 2154979917824

Is there a way how to have scrub delete the broken files?
What to do with the unable to fixup messages?

Thank you

Lubos

Re: scrub to delete files

[Martin Steigerwald]

Am Samstag, 24. M=C3=A4rz 2012 schrieb Lubos Kolouch:
> Hello,

Hi Lubos,

> I have a (rather historical btrfs) filesystem running here.
> When I run scrub, I get a lot of messages like :
> btrfs: checksum error at logical 2153033760768 on dev /dev/md2, secto=
r
> 492918400, root 5232, inode 3360637, offset 217088, length 4096, link=
s
> 1 (path: ....)
>=20
> and
>=20
> btrfs: unable to fixup (regular) error at logical 2154979917824
>=20
> Is there a way how to have scrub delete the broken files?
> What to do with the unable to fixup messages?

What kernel version are you using?

I thought that with newer kernel versions it would put the name of the =
file=20
which failed into kernel log as well. Then you could grep for those, aw=
k=20
them out of the log file and delete them then.

Since my filesystems all scrub well I have no example log message.

Thanks,
--=20
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7
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Re: scrub to delete files

[Lubos Kolouch]

Martin Steigerwald, Sat, 24 Mar 2012 14:10:42 +0100:

> Am Samstag, 24. M=C3=A4rz 2012 schrieb Lubos Kolouch:
>> Hello,
>=20
> Hi Lubos,
>=20
>> I have a (rather historical btrfs) filesystem running here.
>> When I run scrub, I get a lot of messages like :
>> btrfs: checksum error at logical 2153033760768 on dev /dev/md2, sect=
or
>> 492918400, root 5232, inode 3360637, offset 217088, length 4096, lin=
ks
>> 1 (path: ....)
>>=20
>> and
>>=20
>> btrfs: unable to fixup (regular) error at logical 2154979917824
>>=20
>> Is there a way how to have scrub delete the broken files?
>> What to do with the unable to fixup messages?
>=20
> What kernel version are you using?
>=20
> I thought that with newer kernel versions it would put the name of th=
e
> file which failed into kernel log as well. Then you could grep for
> those, awk them out of the log file and delete them then.
>=20
> Since my filesystems all scrub well I have no example log message.
>=20
> Thanks,
> --
> Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C
> 0040 0710 4AFA  B82F 991B EAAC A599 84C7

Hallo Martin,

Thank you for reply...

I'm using 3.3.0 - yes, it is in the log file so I will do that. Just=20
though if scrub does not have a (non-documented) option to do it.

Thanks

Lubos

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