* 2 errors on scrub
@ 2013-01-10 0:38 Russell Coker
2013-01-10 8:55 ` Hugo Mills
2013-01-10 12:04 ` David Sterba
0 siblings, 2 replies; 5+ messages in thread
From: Russell Coker @ 2013-01-10 0:38 UTC (permalink / raw)
To: linux-btrfs@vger.kernel.org list
The below is from a system running the Debian kernel 3.2.0-4-amd64 on a 120G
Intel SSD. What would these 2 errors be?
scrub device /dev/disk/by-uuid/7939c405-c656-4e85-a6a0-29f17be09585 (id 1)
done
scrub started at Thu Jan 10 06:00:02 2013 and finished after 295
seconds
total bytes scrubbed: 25.42GB with 2 errors
error details: super=2
corrected errors: 0, uncorrectable errors: 0, unverified errors: 0
I know you all recommend later kernels, I'm upgrading things as fast as I can.
--
My Main Blog http://etbe.coker.com.au/
My Documents Blog http://doc.coker.com.au/
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: 2 errors on scrub
2013-01-10 0:38 2 errors on scrub Russell Coker
@ 2013-01-10 8:55 ` Hugo Mills
2013-01-10 11:01 ` Russell Coker
2013-01-10 12:04 ` David Sterba
1 sibling, 1 reply; 5+ messages in thread
From: Hugo Mills @ 2013-01-10 8:55 UTC (permalink / raw)
To: Russell Coker; +Cc: linux-btrfs@vger.kernel.org list
[-- Attachment #1: Type: text/plain, Size: 975 bytes --]
On Thu, Jan 10, 2013 at 11:38:45AM +1100, Russell Coker wrote:
> The below is from a system running the Debian kernel 3.2.0-4-amd64 on a 120G
> Intel SSD. What would these 2 errors be?
>
> scrub device /dev/disk/by-uuid/7939c405-c656-4e85-a6a0-29f17be09585 (id 1)
> done
> scrub started at Thu Jan 10 06:00:02 2013 and finished after 295
> seconds
> total bytes scrubbed: 25.42GB with 2 errors
> error details: super=2
> corrected errors: 0, uncorrectable errors: 0, unverified errors: 0
Looks like broken superblocks, from that message. There's probably
more information in your kernel logs.
> I know you all recommend later kernels, I'm upgrading things as fast as I can.
Glad to hear it. :)
Hugo.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: 2 errors on scrub
2013-01-10 8:55 ` Hugo Mills
@ 2013-01-10 11:01 ` Russell Coker
0 siblings, 0 replies; 5+ messages in thread
From: Russell Coker @ 2013-01-10 11:01 UTC (permalink / raw)
To: Hugo Mills; +Cc: linux-btrfs@vger.kernel.org list
On Thu, 10 Jan 2013, Hugo Mills <hugo@carfax.org.uk> wrote:
> Looks like broken superblocks, from that message. There's probably
> more information in your kernel logs.
The only BTRFS message I see in the kernel log is "btrfs: unlinked 3 orphans"
which happens every time a cron job makes a snapshot of /home. Why does it do
that?
--
My Main Blog http://etbe.coker.com.au/
My Documents Blog http://doc.coker.com.au/
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: 2 errors on scrub
2013-01-10 0:38 2 errors on scrub Russell Coker
2013-01-10 8:55 ` Hugo Mills
@ 2013-01-10 12:04 ` David Sterba
2013-01-12 1:56 ` Russell Coker
1 sibling, 1 reply; 5+ messages in thread
From: David Sterba @ 2013-01-10 12:04 UTC (permalink / raw)
To: Russell Coker; +Cc: linux-btrfs@vger.kernel.org list
On Thu, Jan 10, 2013 at 11:38:45AM +1100, Russell Coker wrote:
> The below is from a system running the Debian kernel 3.2.0-4-amd64 on a 120G
> Intel SSD. What would these 2 errors be?
>
> scrub device /dev/disk/by-uuid/7939c405-c656-4e85-a6a0-29f17be09585 (id 1)
> done
> scrub started at Thu Jan 10 06:00:02 2013 and finished after 295
> seconds
> total bytes scrubbed: 25.42GB with 2 errors
> error details: super=2
The superblock errors are detected but not corrected right away, because
next transaction commit will overvrite it.
Does scub report the errors repeatedly?
There are no other scrub errors reported, I guess there are also no
relevant messages in syslog. During transaction commit scrub is paused,
so it's not possible to verify a half-made superblock.
> corrected errors: 0, uncorrectable errors: 0, unverified errors: 0
david
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: 2 errors on scrub
2013-01-10 12:04 ` David Sterba
@ 2013-01-12 1:56 ` Russell Coker
0 siblings, 0 replies; 5+ messages in thread
From: Russell Coker @ 2013-01-12 1:56 UTC (permalink / raw)
To: dsterba; +Cc: linux-btrfs@vger.kernel.org list
On Thu, 10 Jan 2013, David Sterba <dsterba@suse.cz> wrote:
> > total bytes scrubbed: 25.42GB with 2 errors
> > error details: super=2
>
> The superblock errors are detected but not corrected right away, because
> next transaction commit will overvrite it.
>
> Does scub report the errors repeatedly?
Scrub reported the errors repeatedly, but now the errors have gone away (I
have just done a few scrubs with no errors reported). So it seems that
something that happened in the mean time fixed it.
Thanks for your reply.
--
My Main Blog http://etbe.coker.com.au/
My Documents Blog http://doc.coker.com.au/
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2013-01-12 1:56 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
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2013-01-10 0:38 2 errors on scrub Russell Coker
2013-01-10 8:55 ` Hugo Mills
2013-01-10 11:01 ` Russell Coker
2013-01-10 12:04 ` David Sterba
2013-01-12 1:56 ` Russell Coker
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