* v0.19-35-g1b444cd btrfsck says snapshots have errors
@ 2011-01-20 22:52 Ian! D. Allen
2011-01-21 1:15 ` Yan, Zheng
0 siblings, 1 reply; 4+ messages in thread
From: Ian! D. Allen @ 2011-01-20 22:52 UTC (permalink / raw)
To: linux-btrfs
Still getting btrfsck errors with this:
git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs-unstable.git
# ./btrfstest.sh
Using /mnt/sdb1 /dev/sdb1 on /dev/sdb
+ mkfs.btrfs -L BTRFStest /dev/sdb1
WARNING! - Btrfs v0.19-35-g1b444cd IS EXPERIMENTAL
WARNING! - see http://btrfs.wiki.kernel.org before using
fs created label BTRFStest on /dev/sdb1
nodesize 4096 leafsize 4096 sectorsize 4096 size 2.00GB
Btrfs v0.19-35-g1b444cd
+ mount -o noatime /dev/sdb1 /mnt/sdb1
+ btrfs subvolume snapshot /mnt/sdb1 /mnt/sdb1/snap1
Create a snapshot of '/mnt/sdb1' in '/mnt/sdb1/snap1'
+ btrfs subvolume snapshot /mnt/sdb1/snap1 /mnt/sdb1/snap2
Create a snapshot of '/mnt/sdb1/snap1' in '/mnt/sdb1/snap2'
+ btrfs subvolume snapshot /mnt/sdb1/snap2 /mnt/sdb1/snap3
Create a snapshot of '/mnt/sdb1/snap2' in '/mnt/sdb1/snap3'
+ btrfs subvolume snapshot /mnt/sdb1/snap3 /mnt/sdb1/snap4
Create a snapshot of '/mnt/sdb1/snap3' in '/mnt/sdb1/snap4'
+ btrfs subvolume snapshot /mnt/sdb1/snap4 /mnt/sdb1/snap5
Create a snapshot of '/mnt/sdb1/snap4' in '/mnt/sdb1/snap5'
+ umount /dev/sdb1
+ btrfsck /dev/sdb1
fs tree 256 refs 6
unresolved ref root 256 dir 256 index 2 namelen 5 name snap1 error 600
unresolved ref root 257 dir 256 index 2 namelen 5 name snap1 error 600
unresolved ref root 258 dir 256 index 2 namelen 5 name snap1 error 600
unresolved ref root 259 dir 256 index 2 namelen 5 name snap1 error 600
unresolved ref root 260 dir 256 index 2 namelen 5 name snap1 error 600
found 49152 bytes used err is 1
total csum bytes: 0
total tree bytes: 49152
total fs tree bytes: 28672
btree space waste bytes: 39360
file data blocks allocated: 0
referenced 0
Btrfs v0.19-35-g1b444cd
--
| Ian! D. Allen - idallen@idallen.ca - Ottawa, Ontario, Canada
| Home Page: http://idallen.com/ Contact Improv: http://contactimprov.ca/
| College professor (Free/Libre GNU+Linux) at: http://teaching.idallen.com/
| Defend digital freedom: http://eff.org/ and have fun: http://fools.ca/
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: v0.19-35-g1b444cd btrfsck says snapshots have errors
2011-01-20 22:52 v0.19-35-g1b444cd btrfsck says snapshots have errors Ian! D. Allen
@ 2011-01-21 1:15 ` Yan, Zheng
2011-01-23 10:44 ` Ian! D. Allen
0 siblings, 1 reply; 4+ messages in thread
From: Yan, Zheng @ 2011-01-21 1:15 UTC (permalink / raw)
To: Ian! D. Allen; +Cc: linux-btrfs
On Fri, Jan 21, 2011 at 6:52 AM, Ian! D. Allen <idallen@idallen.ca> wro=
te:
> Still getting btrfsck errors with this:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs-unsta=
ble.git
>
> # ./btrfstest.sh
> Using /mnt/sdb1 /dev/sdb1 on /dev/sdb
> + mkfs.btrfs -L BTRFStest /dev/sdb1
>
> WARNING! - Btrfs v0.19-35-g1b444cd IS EXPERIMENTAL
> WARNING! - see http://btrfs.wiki.kernel.org before using
>
> fs created label BTRFStest on /dev/sdb1
> =A0 =A0 =A0 =A0nodesize 4096 leafsize 4096 sectorsize 4096 size 2.00G=
B
> Btrfs v0.19-35-g1b444cd
> + mount -o noatime /dev/sdb1 /mnt/sdb1
> + btrfs subvolume snapshot /mnt/sdb1 /mnt/sdb1/snap1
> Create a snapshot of '/mnt/sdb1' in '/mnt/sdb1/snap1'
> + btrfs subvolume snapshot /mnt/sdb1/snap1 /mnt/sdb1/snap2
> Create a snapshot of '/mnt/sdb1/snap1' in '/mnt/sdb1/snap2'
> + btrfs subvolume snapshot /mnt/sdb1/snap2 /mnt/sdb1/snap3
> Create a snapshot of '/mnt/sdb1/snap2' in '/mnt/sdb1/snap3'
> + btrfs subvolume snapshot /mnt/sdb1/snap3 /mnt/sdb1/snap4
> Create a snapshot of '/mnt/sdb1/snap3' in '/mnt/sdb1/snap4'
> + btrfs subvolume snapshot /mnt/sdb1/snap4 /mnt/sdb1/snap5
> Create a snapshot of '/mnt/sdb1/snap4' in '/mnt/sdb1/snap5'
> + umount /dev/sdb1
> + btrfsck /dev/sdb1
> fs tree 256 refs 6
> =A0 =A0 =A0 =A0unresolved ref root 256 dir 256 index 2 namelen 5 name=
snap1 error 600
> =A0 =A0 =A0 =A0unresolved ref root 257 dir 256 index 2 namelen 5 name=
snap1 error 600
> =A0 =A0 =A0 =A0unresolved ref root 258 dir 256 index 2 namelen 5 name=
snap1 error 600
> =A0 =A0 =A0 =A0unresolved ref root 259 dir 256 index 2 namelen 5 name=
snap1 error 600
> =A0 =A0 =A0 =A0unresolved ref root 260 dir 256 index 2 namelen 5 name=
snap1 error 600
> found 49152 bytes used err is 1
> total csum bytes: 0
> total tree bytes: 49152
> total fs tree bytes: 28672
> btree space waste bytes: 39360
> file data blocks allocated: 0
> =A0referenced 0
> Btrfs v0.19-35-g1b444cd
>
>
These is caused by a design flaw, you can safely ignore them.
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: v0.19-35-g1b444cd btrfsck says snapshots have errors
2011-01-21 1:15 ` Yan, Zheng
@ 2011-01-23 10:44 ` Ian! D. Allen
2011-01-23 14:28 ` Hugo Mills
0 siblings, 1 reply; 4+ messages in thread
From: Ian! D. Allen @ 2011-01-23 10:44 UTC (permalink / raw)
To: linux-btrfs
On Fri, Jan 21, 2011 at 09:15:49AM +0800, Yan, Zheng wrote:
> On Fri, Jan 21, 2011 at 6:52 AM, Ian! D. Allen <idallen@idallen.ca> wrote:
> > Still getting btrfsck errors with this:
> > git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs-unstable.git
> > unresolved ref root 256 dir 256 index 2 namelen 5 name snap1 error 600
> > found 49152 bytes used err is 1
> These is caused by a design flaw, you can safely ignore them.
If it isn't an error, shouldn't btrfsck be ignoring it, not me?
At minimum it could say "warning" and not "err is 1".
--
| Ian! D. Allen - idallen@idallen.ca - Ottawa, Ontario, Canada
| Home Page: http://idallen.com/ Contact Improv: http://contactimprov.ca/
| College professor (Free/Libre GNU+Linux) at: http://teaching.idallen.com/
| Defend digital freedom: http://eff.org/ and have fun: http://fools.ca/
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: v0.19-35-g1b444cd btrfsck says snapshots have errors
2011-01-23 10:44 ` Ian! D. Allen
@ 2011-01-23 14:28 ` Hugo Mills
0 siblings, 0 replies; 4+ messages in thread
From: Hugo Mills @ 2011-01-23 14:28 UTC (permalink / raw)
To: Ian! D. Allen; +Cc: linux-btrfs
[-- Attachment #1: Type: text/plain, Size: 1108 bytes --]
On Sun, Jan 23, 2011 at 05:44:34AM -0500, Ian! D. Allen wrote:
> On Fri, Jan 21, 2011 at 09:15:49AM +0800, Yan, Zheng wrote:
> > On Fri, Jan 21, 2011 at 6:52 AM, Ian! D. Allen <idallen@idallen.ca> wrote:
> > > Still getting btrfsck errors with this:
> > > git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs-unstable.git
> > > unresolved ref root 256 dir 256 index 2 namelen 5 name snap1 error 600
> > > found 49152 bytes used err is 1
> > These is caused by a design flaw, you can safely ignore them.
>
> If it isn't an error, shouldn't btrfsck be ignoring it, not me?
> At minimum it could say "warning" and not "err is 1".
Yes, it probably should, but there's not a great deal of point in
fixing this particular issue, because Chris is working on the all-new
(offline) repairing fsck, which should replace the current
checking-only fsck very soon now.
Hugo.
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PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
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2011-01-20 22:52 v0.19-35-g1b444cd btrfsck says snapshots have errors Ian! D. Allen
2011-01-21 1:15 ` Yan, Zheng
2011-01-23 10:44 ` Ian! D. Allen
2011-01-23 14:28 ` Hugo Mills
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