On Fri, Jan 03, 2014 at 05:14:56PM -0700, Chris Murphy wrote:
On Jan 3, 2014, at 5:33 AM, Marc MERLIN m...@merlins.org wrote:
Would it be possible for whoever maintains btrfs-tools to change both
the man page and the help included in the tool to clearly state that
running the fsck tool
On Fri, Jan 03, 2014 at 09:34:10PM +, Duncan wrote:
Thank you for that tip, I had been unaware of it 'till now.
This will make my virtualbox image directory much happier :)
I think I said it, but it bears repeating. Once you set that attribute
on the dir, you may want to move the
On Sat, 4 Jan 2014 02:56:39 PM Chris Mason wrote:
Seconded +ADs-) We're really focused on nailing down these problems instead
of hiding behind the experimental flag. I know we won't be perfect
overnight, but it's time to focus on production workloads.
Perhaps an option here is to remove the
Jim Salter posted on Sat, 04 Jan 2014 16:22:53 -0500 as excerpted:
On 01/04/2014 01:10 AM, Duncan wrote:
The example given in the OP was of a 4-device raid10, already the
minimum number to work undegraded, with one device dropped out, to
below the minimum required number to mount undegraded,
Chris Samuel posted on Sun, 05 Jan 2014 20:20:26 +1100 as excerpted:
On Sat, 4 Jan 2014 02:56:39 PM Chris Mason wrote:
Seconded +ADs-) We're really focused on nailing down these problems
instead of hiding behind the experimental flag. I know we won't be
perfect overnight, but it's time to
Hello,
What messages in dmesg so you get when you use recovery?
I'll find out, tomorrow (I can't access the disk just now).
Here it is:
[90098.989872] btrfs: device fsid 989306aa-d291-4752-8477-0baf94f8c42f
devid 2 transid 162460 /dev/sdc1
That's all. The same in the syslog.
Do you
Fengguang,
Instead of rebooting, can you trigger a crash dump when this happens
and send us the backtrace (to start with)?
Kent,
Did you do any btrfs test with your changes?
Regards,
Muthu
On Sun, Jan 5, 2014 at 1:46 AM, Fengguang Wu fengguang...@intel.com wrote:
Hi Muthu,
On Fri, Jan 03,
On Jan 4, 2014, at 2:21 PM, Hendrik Friedel hend...@friedels.name wrote:
Hi Chris,
I ran btrfsck on my volume with the repair option. When I re-run it, I
get the same errors as before.
Did you try mounting with -o recovery first?
https://btrfs.wiki.kernel.org/index.php/Problem_FAQ
On Jan 4, 2014, at 11:39 PM, Marc MERLIN m...@merlins.org wrote:
Nope, I never posted anything until now. Hopefully you agree that it's
not ok for btrfs/kernel to just kill my system for over 2H until I power
it off before of defragging one file. I did hit a severe performance but
if it's
On 05.01.2014 18:43, Justus Seifert wrote:
On 05.01.2014 05:34, dhan.war wrote:
hi all
i am using up to date debian sid with xfce desktop environment. i am
using Linux 3.13-rc6-amd64 #1 SMP Debian 3.13~rc6-1~exp1 (2013-12-30)
x86_64 GNU/Linux from experimental.
i have installed usbmount to
On 05.01.2014 05:34, dhan.war wrote:
hi all
i am using up to date debian sid with xfce desktop environment. i am
using Linux 3.13-rc6-amd64 #1 SMP Debian 3.13~rc6-1~exp1 (2013-12-30)
x86_64 GNU/Linux from experimental.
i have installed usbmount to auto mount all the devices connected
On 01/05/2014 12:09 PM, Chris Murphy wrote:
I haven't read anything so far indicating defrag applies to the VM
container use case, rather nodatacow via xattr +C is the way to go. At
least for now.
Can you elaborate on the rationale behind database or VM binaries being
set nodatacow? I
On 01/05/2014 12:50 PM, Justus Seifert wrote:
oh i forgot: if you want to mount it without su privileges you have to
use:
/dev/sdc /path/to/your/favorite/mountpoint compress,noauto,users,user 0 0
If you want LZO compression, as you specified:
/dev/sdc /path/to/mountpoint
On 01/05/2014 01:02 PM, Jim Salter wrote:
If you want LZO compression, as you specified:
/dev/sdc /path/to/mountpoint compress=lzo,noauto,users,user 0 0
Better yet, if your btrfs is actually on /dev/sdc right now, let's get
that fstab entry mounting it by UUID instead.
The structure for BTRFS_SET_RECEIVED_IOCTL packs differently on 32-bit
and 64-bit systems. This means that it is impossible to use btrfs
receive on a system with a 64-bit kernel and 32-bit userspace, because
the structure size (and hence the ioctl number) is different.
This patch adds a
On Sun, Jan 05, 2014 at 05:55:27PM +, Hugo Mills wrote:
The structure for BTRFS_SET_RECEIVED_IOCTL packs differently on 32-bit
and 64-bit systems. This means that it is impossible to use btrfs
receive on a system with a 64-bit kernel and 32-bit userspace, because
the structure size (and
Hello,
distribution, used space on each device should be accordingly: 160,
216, and 405.
The last number should be 376, I copied the wrong one. Anyway, I deleted
as much data as possible, which probably won't help in the end, but at
the moment it's still going. Meanwhile, I made a script to
Jim Salter posted on Sun, 05 Jan 2014 12:54:44 -0500 as excerpted:
On 01/05/2014 12:09 PM, Chris Murphy wrote:
I haven't read anything so far indicating defrag applies to the VM
container use case, rather nodatacow via xattr +C is the way to go. At
least for now.
Well, NOCOW from the get-go
On Jan 4, 2014, at 2:16 PM, Jim Salter j...@jrs-s.net wrote:
On 01/04/2014 02:18 PM, Chris Murphy wrote:
I'm not sure what else you're referring to?(working on boot environment of
btrfs)
Just the string of caveats regarding mounting at boot time - needing to
monkeypatch 00_header to
On Dec 31, 2013, at 4:46 AM, Sulla su...@gmx.at wrote:
Dear all!
On my Ubuntu Server 13.10 I use a RAID5 blockdevice consisting of 3 WD20EARS
Sulla is this md raid5? If so can you report the result from mdadm -D
mddevice, I'm curious what the chunk size is. Thanks.
Chris Murphy--
To
On Jan 5, 2014, at 12:57 PM, Duncan 1i5t5.dun...@cox.net wrote:
But I do very little snapshotting here, and as a result hadn't considered
the knockon effect of 100K-plus extents in perhaps 1000 snapshots.
I wonder if this is an issue with snapshot aware defrag? Some problems were
fixed
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Dear Chris!
Certainly: I have 3 HDDs, all of which WD20EARS. Originally I wanted to
let btrfs handle all 3 devices directly without making partitions, but
this was impossible, as at least /boot needed to be ext4, at least back
then when I set up the
On Sun, 05 Jan 2014 08:42:46 -0500
Jim Salter j...@jrs-s.net wrote:
On Jan 5, 2014 1:39 AM, Marc MERLIN m...@merlins.org wrote:
On Fri, Jan 03, 2014 at 09:34:10PM +, Duncan wrote:
Yes, I got that. That why I ran btrfs defrag on the files after that
Why are you trying to defrag an
On 2014/01/05 11:17 PM, Sulla wrote:
Certainly: I have 3 HDDs, all of which WD20EARS.
Maybe/maybe-not off-topic:
Poor hardware performance, though not necessarily the root cause, can be
a major factor with these errors.
WD Greens (Reds too, for that matter) have poor non-sequential
Hello,
I am currently playing with snapshots and manual deduplication of
files. During these tests I noticed the change of ctime and mtime in
the snapshot after the deduplication with FILE_EXTENT_SAME. Does this
happens on purpose? Otherwise I would like to have ctime and mtime
left unmodified,
On Mon, 06 Jan 2014 00:36:22 +0200
Brendan Hide bren...@swiftspirit.co.za wrote:
I had 8x 1.5TB WD1500EARS drives in an mdRAID5 array. With it I had a
single 250GB IDE disk for the OS. When the very old IDE disk inevitably
died, I decided to use a spare 1.5TB drive for the OS. Performance
On Jan 5, 2014, at 2:17 PM, Sulla su...@gmx.at wrote:
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Dear Chris!
Certainly: I have 3 HDDs, all of which WD20EARS.
These drives don't have a configurable SCT ERC, so you need to modify the SCSI
block layer timeout:
echo 120
On Jan 5, 2014, at 4:48 PM, Chris Murphy li...@colorremedies.com wrote:
On Jan 5, 2014, at 2:17 PM, Sulla su...@gmx.at wrote:
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Dear Chris!
Certainly: I have 3 HDDs, all of which WD20EARS.
These drives don't have a configurable SCT ERC,
On Jan 5, 2014, at 3:36 PM, Brendan Hide bren...@swiftspirit.co.za wrote:
WD Greens (Reds too, for that matter) have poor non-sequential performance.
An educated guess I'd say there's a 15% chance this is a major factor to the
problem and, perhaps, a 60% chance it is merely a small
On Jan 5, 2014, at 5:15 PM, Chris Murphy li...@colorremedies.com wrote:
On Jan 5, 2014, at 3:36 PM, Brendan Hide bren...@swiftspirit.co.za wrote:
WD Greens (Reds too, for that matter) have poor non-sequential performance.
An educated guess I'd say there's a 15% chance this is a major
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Thanks Chris!
Thanks for your support.
echo 120 /sys/block/sdX/device/timeout
timeout is 30 for my HDDs. I'm well aware that the WD green HDDs are not
the perfect ones for servers, but they were cheaper - and quieter - than
the black ones for
On Jan 5, 2014, at 5:25 PM, Sulla su...@gmx.at wrote:
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Thanks Chris!
Thanks for your support.
echo 120 /sys/block/sdX/device/timeout
timeout is 30 for my HDDs.
I don't think those drives support a configurable time out; the Green hasn't
On fri, 3 Jan 2014 18:52:44 +0100, David Sterba wrote:
On Fri, Jan 03, 2014 at 02:10:30PM +0800, Qu Wenruo wrote:
Add noinode_cache mount option to disable inode map cache with
remount option.
This looks almost safe, there's a sync_filesystem called before the
filesystem's remount handler, the
On fri, 03 Jan 2014 11:52:07 -0600, Eric Sandeen wrote:
On 1/3/14, 12:10 AM, Qu Wenruo wrote:
Some options should be paired to support triggering different functions
when remounting.
This patchset add these missing pairing mount options.
I think this really would benefit from a regression
On fri, 3 Jan 2014 18:58:28 +0100, David Sterba wrote:
On Fri, Jan 03, 2014 at 02:10:23PM +0800, Qu Wenruo wrote:
Some options should be paired to support triggering different functions
when remounting.
This patchset add these missing pairing mount options.
Thanks!
btrfs: Add nocheck_int
On Fri, 3 Jan 2014 18:13:08 +0100, David Sterba wrote:
On Fri, Jan 03, 2014 at 02:10:26PM +0800, Qu Wenruo wrote:
Add nocheck_int mount option to disable integrity check with
remount option.
+ nocheck_int disables all the debug options above.
I think this option is not needed, the
On Jan 5, 2014, at 6:29 PM, Sulla su...@gmx.at wrote:
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Hi Chris!
# sudo smartctl -l scterc /dev/sda
tells me
SCT Error Recovery Control command not supported
you're right. the /sys/block/sdX/device/timeout file probably is useless then.
Some options should be paired to support triggering different functions
when remounting.
This patchset add these missing pairing mount options except noinode_cache,
which may need more investigation to ensure the safety and will be sent as
independent patch.
Qu Wenruo (9):
btrfs: Add barrier
Btrfs can be remounted without barrier, but there is no barrier option
so nobody can remount btrfs back with barrier on. Only umount and
mount again can re-enable barrier.(Quite awkward)
Also the mount options in the document is also changed slightly for the
further pairing options changes.
Add noflushoncommit mount option to disable flush on commit with
remount option.
Signed-off-by: Qu Wenruo quwen...@cn.fujitsu.com
Reviewed-by: David Sterba dste...@suse.cz
---
Changelog:
v2: Add noflushoncommit option
v3: None
---
Documentation/filesystems/btrfs.txt | 1 +
fs/btrfs/super.c
Add noenospc_debug mount option to disable ENOSPC debug with
remount option.
Signed-off-by: Qu Wenruo quwen...@cn.fujitsu.com
Reviewed-by: David Sterba dste...@suse.cz
---
Changelog:
v2: Add noenospc_debug option
v3: None
---
Documentation/filesystems/btrfs.txt | 3 ++-
fs/btrfs/super.c
Btrfs has autodefrag mount option but no pairing noautodefrag option,
which makes it impossible to disable autodefrag without umount.
Signed-off-by: Qu Wenruo quwen...@cn.fujitsu.com
Reviewed-by: David Sterba dste...@suse.cz
---
Changelog:
v2: Add noautodefrag option
v3: None
---
Add nodiscard mount option to disable discard with remount option.
Signed-off-by: Qu Wenruo quwen...@cn.fujitsu.com
Reviewed-by: David Sterba dste...@suse.cz
---
Changelog:
v2: Add nodiscard option
v3: None
---
Documentation/filesystems/btrfs.txt | 7 +--
fs/btrfs/super.c
Add datacow mount option to enable copy-on-write with
remount option.
Signed-off-by: Qu Wenruo quwen...@cn.fujitsu.com
Reviewed-by: David Sterba dste...@suse.cz
---
Changelog:
v2: add datacow mount option
v3: None
---
Documentation/filesystems/btrfs.txt | 5 +++--
fs/btrfs/super.c
Add datasum mount option to enable checksum with
remount option.
Signed-off-by: Qu Wenruo quwen...@cn.fujitsu.com
Reviewed-by: David Sterba dste...@suse.cz
---
Changelog:
v2: Add datasum option
v3: None
---
Documentation/filesystems/btrfs.txt | 4 +++-
fs/btrfs/super.c| 10
Add treelog mount option to enable tree log with
remount option.
Signed-off-by: Qu Wenruo quwen...@cn.fujitsu.com
Reviewed-by: David Sterba dste...@suse.cz
---
Changelog:
v2: Add treelog option
v3: None
---
Documentation/filesystems/btrfs.txt | 3 ++-
fs/btrfs/super.c| 8
Add acl mount option to enable acl with remount option.
Signed-off-by: Qu Wenruo quwen...@cn.fujitsu.com
Reviewed-by: David Sterba dste...@suse.cz
---
Changelog:
v2: add acl option
v3: None
---
Documentation/filesystems/btrfs.txt | 3 ++-
fs/btrfs/super.c| 6 +-
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