On Sun, Sep 11, 2016 at 02:39:14PM +0200, Waxhead wrote:
> That is exactly the same reason I don't edit the wiki myself. I could of
> course get it started and hopefully someone will correct what I write, but I
> feel that if I start this off I don't have deep enough knowledge to do a
> proper star
On Wed, Mar 09, 2016 at 02:21:26PM -0700, Chris Murphy wrote:
> > I have a very stripped down docker image that actually mounts portion of
> > of my root filesystem read only.
> > While it's running out of a btrfs filesystem, you can't run btrfs
> > commands against it:
> > 05233e5c91f0:/# btrfs fi
On Mon, Mar 07, 2016 at 11:55:47PM +0100, Tobias Hunger wrote:
> Hi,
>
> I have been running systemd-nspawn containers on top of a btrfs
> filesystem for a while now.
>
> This works great: Snapshots are a huge help to manage containers!
>
> But today I ran btrfs subvol list . *inside* a containe
On Tue, Feb 23, 2016 at 01:59:11PM -0800, Marc MERLIN wrote:
> I have a freshly created md5 array, with drives that I specifically
> scanned one by one block by block, and for good measure, I also scanned
> the entire software raid with a check command which took 3 days to run.
>
On Sun, Feb 28, 2016 at 06:49:21AM +, Duncan wrote:
> The "defaults" mount option in fstab is just that, the defaults, and
> doesn't really apply as an option because they /are/ the defaults. The
Yeah, been having this for some 20 years, cut and paste, and I should get
used to just removing i
On Sun, Feb 28, 2016 at 09:44:36AM +0800, Anand Jain wrote:
> If you have a choice pls add, 'btrfs fi show -d' as well for the outputs
> to be taken at the time of boot just before system's 'btrfs dev scan',
Ok, I had to reboot anyway, so here's the state when it's bad:
gargamel:~# btrfs fi show
On Sun, Feb 28, 2016 at 09:44:36AM +0800, Anand Jain wrote:
>
> Marc,
>
> > Err, I'm very perplexed now. I already have a scan in my boot process
> > after device decrypts.
> > Somehow it saw one of my 2 devices, but not the other one?
>
> If blkid shows both the devices and if you are running '
On Sat, Feb 27, 2016 at 10:06:06AM -0800, Liu Bo wrote:
> Can you grep this message since btrfs dev scan has a "printf("Scanning for
> Btrfs filesystems\n");"?
> And if a scan failed somehow, it may print an error after this message
> and we then know what was happening..
I'm not seeing anything
On Sun, Feb 28, 2016 at 06:58:00AM +0800, Anand Jain wrote:
> Can you log the output of blkid here. If blkid output does
> not report all the btrfs devs correctly the kernel won't know
> as well.
Sure. The relevant entries are at the bottom (last 3 lines).
It looks good now of course, but I
On Fri, Feb 26, 2016 at 06:45:34PM -0800, Liu Bo wrote:
> On Fri, Feb 26, 2016 at 06:39:38PM -0800, Marc MERLIN wrote:
> > btrfs-tools 4.4-1
> > gargamel:~# uname -r
> > 4.4.2-amd64-i915-volpreempt-20160214bc2
> >
> > 2 drive array stopped working after a c
btrfs-tools 4.4-1
gargamel:~# uname -r
4.4.2-amd64-i915-volpreempt-20160214bc2
2 drive array stopped working after a crash/reboot. Check --repair finds
nothing wrong with it:
gargamel:~# btrfs check --repair /dev/mapper/raid0d1
enabling repair mode
Checking filesystem on /dev/mapper/raid0d1
UUID
Which kind of RAM am I missing? :)
Thanks,
Marc
[46320.200703] btrfs: page allocation failure: order:1, mode:0x2204020
[46320.221174] CPU: 7 PID: 12576 Comm: btrfs Not tainted
4.4.2-amd64-i915-volpreempt-20160213bc1 #3
[46320.249161] Hardware name: System manufacturer System Product Name/P8H67-M
On Tue, Feb 23, 2016 at 08:40:46PM -0400, Kenny MacDermid wrote:
> I'm running btrfs on DM-Crypt Luks running on LVM.
>
> Occasionally I get files that are unreadable for some period of time.
> Attempting to read from them results in an
>
> Input/output error
>
> Sometimes they'll come back on
On Tue, Feb 23, 2016 at 11:22:47PM +, Duncan wrote:
> Forgot to mention, tho you're probably already considering it, if this is
> the same raid5-backed btrfs you were complaining about being slow in the
> other thread,
No, that's another one :)
This one was remade from scratch after the fil
I have a freshly created md5 array, with drives that I specifically
scanned one by one block by block, and for good measure, I also scanned
the entire software raid with a check command which took 3 days to run.
Everything passed.
Then, I made a bcache of that device, an ssd that seems to work fi
On Tue, Feb 23, 2016 at 07:01:52PM +0100, Lionel Bouton wrote:
> Why don't you use autodefrag ? If you have writable snapshots and do
> write to them heavily it would not be a good idea (depending on how
> BTRFS handles this in most cases you would probably either break the
> reflinks or fragment a
On Tue, Feb 23, 2016 at 09:26:35AM -0800, Marc MERLIN wrote:
> Label: 'dshelf2' uuid: d4a51178-c1e6-4219-95ab-5c5864695bfd
> Total devices 1 FS bytes used 4.25TiB
> devid1 size 7.28TiB used 4.44TiB path /dev/mapper/dshelf2
>
> btrfs fi df /mnt/bt
Well, since we're on the topic, my backup server btrfs FS has become so
slow that it hangs my system a few seconds here and there and causes
some of my cron jobs to fail.
I'm going to re-create it for a 3 time (in 3 years), adding bcache this
time, but clearly there is a good chance that this file
On Mon, Feb 22, 2016 at 02:45:49PM -0600, Terrance Harris wrote:
> Hello,
>
> I'm a btrfs novice, but i've been using it for a few years now on
> openSUSE Tumblweed.
Howdy.
First, please use the linux-btrfs@vger.kernel.org mailing list
> Is there a way to convert snaBpshots into mountable file
On Mon, Feb 15, 2016 at 08:17:32AM +0800, Qu Wenruo wrote:
> Sorry for the late reply.
>
> According to the output of your btrfsck --repair output, things just get
> worse.
>
> So at this point, it's harder to locate the original problem. (Csum
> missing with bad file extents)
>
> IMHO you can
On Sun, Feb 14, 2016 at 01:43:05PM -0700, Chris Murphy wrote:
> Use all defaults for everything. Anything new by show should do the
> right thing including 4096 byte alignment.
>
> gargamel:~# cryptsetup luksDump /dev/md8
> [snip]
> Payload offset: 3072
>
> This is a bit weird because the default
On Sat, Feb 13, 2016 at 12:28:13PM +, Duncan wrote:
> Marc MERLIN posted on Fri, 12 Feb 2016 19:28:46 -0800 as excerpted:
>
> > btrfs send lets you keep COW blocks within a subvolume.
> > But if I have lots of backups where subvolumes have shared data, and I
> > need
On Fri, Feb 12, 2016 at 09:26:28AM -0800, Marc MERLIN wrote:
> On Fri, Feb 12, 2016 at 08:33:11AM +0800, Qu Wenruo wrote:
> > There is still a last chance.
> >
> > If btrfsck still report original error about "bad file extent" in root:
> > 45851/45852/...
&g
btrfs send lets you keep COW blocks within a subvolume.
But if I have lots of backups where subvolumes have shared data, and I need
to migrate this to a new filesystem, is there a decent way?
I know I can btrfs device add new drive as raid1, but I'm trying to migrate
off an old filesystem that lik
On Fri, Feb 12, 2016 at 08:33:11AM +0800, Qu Wenruo wrote:
> There is still a last chance.
>
> If btrfsck still report original error about "bad file extent" in root:
> 45851/45852/...
> Btrfs-debug-tree may provide useful info by dumping only that root.
>
> # btrfs-debug-tree -t 45851
>
> But
I have a 5 drive md array with dmcrypt on top, and btrfs on top of that.
Kernel: 4.4 but the filesystem was created 2 years ago with an older version
of btrfs.
It's littered with files and hardlinks (it's a backup server). Mostly it
gets btrfs receive data, and rsyncs of filesystem trees that are
o
On Thu, Feb 11, 2016 at 07:09:47AM -0800, Marc MERLIN wrote:
> On Thu, Feb 11, 2016 at 03:16:47PM +0800, Qu Wenruo wrote:
> > >I started making a dump, image was growing past 3GB, and then it failed
> > >and the image got deleted:
> > >
> > >gargamel:~# btr
On Thu, Feb 11, 2016 at 03:16:47PM +0800, Qu Wenruo wrote:
> >I started making a dump, image was growing past 3GB, and then it failed
> >and the image got deleted:
> >
> >gargamel:~# btrfs-image -s -c 9 /dev/mapper/dshelf1old
> >/mnt/dshelf1/ds1old.dump
> >Error adding space cache blocks -5
>
> I
On Tue, Jan 26, 2016 at 09:03:07AM +0800, Qu Wenruo wrote:
> If the fs is small enough, would you please do a btrfs-image dump?
> That would help a lot to locate the direct cause.
I started making a dump, image was growing past 3GB, and then it failed
and the image got deleted:
gargamel:~# btrfs
On Tue, Feb 09, 2016 at 02:48:14PM +0100, Christian Rohmann wrote:
>
>
> On 02/01/2016 09:52 PM, Chris Murphy wrote:
> >> Would some sort of stracing or profiling of the process help to narrow
> >> > down where the time is currently spent and why the balancing is only
> >> > running single-thread
On Sun, Dec 13, 2015 at 11:35:08PM +0100, Martin Steigerwald wrote:
> Hi!
>
> For me it is still not production ready. Again I ran into:
>
> btrfs kworker thread uses up 100% of a Sandybridge core for minutes on random
> write into big file
> https://bugzilla.kernel.org/show_bug.cgi?id=90401
S
On Tue, Dec 08, 2015 at 05:24:16PM +0100, Holger Hoffstätte wrote:
> On 12/08/15 17:06, Marc MERLIN wrote:
> > Label: 'btrfs_pool1' uuid: 5ee24229-2431-448a-868e-2c325d10bfa7
> > Total devices 1 FS bytes used 524.26GiB
> > devid1 size 615.01GiB used 6
On Tue, Dec 08, 2015 at 04:46:32PM +0100, Lionel Bouton wrote:
> Le 08/12/2015 16:37, Holger Hoffstätte a écrit :
> > On 12/08/15 16:06, Marc MERLIN wrote:
> >> Howdy,
> >>
> >> Why would scrub need space and why would it cancel if there isn't enough of
Howdy,
Why would scrub need space and why would it cancel if there isn't enough of
it?
(kernel 4.3)
/etc/cron.daily/btrfs-scrub:
btrfs scrub start -Bd /dev/mapper/cryptroot
scrub device /dev/mapper/cryptroot (id 1) done
scrub started at Mon Dec 7 01:35:08 2015 and finished after 258 seco
On Sat, Nov 14, 2015 at 10:35:39PM -0800, Liu Bo wrote:
> Since you said you have some snapshots in between...I can think of one
> case to prove where the space goes,
>
> Say, you have a file with size=10M on a freshly created partition(the total
> used data space is 10M), and you have a snapshot
On Fri, Nov 13, 2015 at 07:45:21PM +, Duncan wrote:
> Marc MERLIN posted on Fri, 13 Nov 2015 09:41:01 -0800 as excerpted:
>
> > Any ideas?
>
> Without addressing the main question, a couple targets of opportunity:
>
> 1) A quick balance with -mprofiles=single should
root@polgara:/mnt/btrfs_root# du -sh *
28G @
28G @_hourly.20151113_08:04:01
4.0K@_last
4.0K@_last_rw
28G @_rw.20151113_00:02:01
root@polgara:/mnt/btrfs_root# df -h .
Filesystem Size Used Avail Use% Mounted on
/dev/sdb556G 40G 5.4G 89% /mnt/btrfs_root
root@polg
On Mon, Oct 05, 2015 at 10:40:34PM -0700, Marc MERLIN wrote:
> I started doing multiple mencoder/ffmpeg commands, and as I ran one
> more, the system froze up (as in everything froze, even running ssh
> sessions not doing any IO)
>
> sysrq-W output:
> http://marc.merlins.org/t
I started doing multiple mencoder/ffmpeg commands, and as I ran one
more, the system froze up (as in everything froze, even running ssh
sessions not doing any IO)
sysrq-W output:
http://marc.merlins.org/tmp/sysrq_4.1.3.txt
I'm assuming btrfs is to blame, but I'm not certain.
Hopefully someone kno
On Mon, Sep 21, 2015 at 02:30:21PM +, Incorporeal Waffle wrote:
> I tried converting my root partition (originally ext4) to btrfs.
>
> When I booted, I discovered that my root partition is getting
> remounted as read only.
I'm afraid, last I heard, the ext4 convertion stuff was broken, and ha
On Tue, Aug 25, 2015 at 01:44:12PM +, Miguel Negrão wrote:
> Hi list,
>
> This weekend had my first btrfs horror story.
>
> system: 3.13.0-49-lowlatency, btrfs-progs v4.1.2
Sorry to say, but that's a very old kernels with many btrfs bugs, some
did lead to corruption.
> A disclaimer: I kno
On Tue, Aug 25, 2015 at 02:00:32PM +0800, Qu Wenruo wrote:
> Thanks for all your work and patient Marc,
Haha, no problem, you're doing a lot more work than I am :)
> Good to know there is backup.
> But as there is no higher generation one, so I'd assume that's not a
> normal transaction id failu
On Tue, Aug 25, 2015 at 10:51:00AM +0800, Qu Wenruo wrote:
> Patches sent and CCed to you.
>
> Please try the two patches and see what's new.
> This time, I think the output will be much larger.
Indeed.
However the bad news is that gen 39538 is the highest.
Should I force btrfsck to work with an
On Mon, Aug 24, 2015 at 01:11:26PM +0800, Qu Wenruo wrote:
> So, my last bet will be, using "btrfs-find-root -a" to find the root
> with highest generation, and use the new root to exec "btrfsck -b
> ".
> The latest btrfs-find-root would output possible tree root by
> descending order of its gene
On Mon, Aug 24, 2015 at 09:10:30AM +0800, Qu Wenruo wrote:
> Would you please take the following output?
>
> 1) btrfs check output
> With error message if it happens.
myth:~# btrfs check /dev/mapper/crypt_sdd1
Checking filesystem on /dev/mapper/crypt_sdd1
UUID: 024ba4d0-dacb-438d-9f1b-eeb34083fe
On Mon, Aug 17, 2015 at 07:49:04AM -0700, Marc MERLIN wrote:
> On Mon, Aug 17, 2015 at 10:01:16AM +0800, Qu Wenruo wrote:
> > Hi Marc,
>
> Hi Qu, thanks for your answer and looking at this.
>
> > Did btrfs-debug-tree also has the crash?
> >
> > If not, woul
]
btrfs-debug-tree(main+0x8b5)[0x804dfb7]
/lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0xb757c4d3]
btrfs-debug-tree[0x804e221]
Do you want the actual output?
(it's 1.1GB uncompressed)
Marc
> Thanks,
> Qu
>
> Marc MERLIN wrote on 2015/08/12 10:19 -0700:
> >On Wed,
On Wed, Aug 12, 2015 at 12:18:45PM -0400, Josef Bacik wrote:
> Going to need more info to figure this one out
Thanks for the patch, here's the output:
enabling repair mode
Checking filesystem on /dev/mapper/crypt_sdd1
UUID: 024ba4d0-dacb-438d-9f1b-eeb34083fe49
checking extents
wtf, parent 5757084
On Wed, Aug 12, 2015 at 11:15:39AM -0400, Josef Bacik wrote:
> On 08/12/2015 10:47 AM, Marc MERLIN wrote:
> >On Tue, Aug 11, 2015 at 11:40:45AM -0400, Josef Bacik wrote:
> >> From a48cf7a9ae44a17d927df5542c8b0be287aee9ed Mon Sep 17 00:00:00 2001
> >>From: Josef Bacik
&g
On Tue, Aug 11, 2015 at 11:40:45AM -0400, Josef Bacik wrote:
> From a48cf7a9ae44a17d927df5542c8b0be287aee9ed Mon Sep 17 00:00:00 2001
> From: Josef Bacik
> Date: Tue, 11 Aug 2015 11:39:37 -0400
> Subject: [PATCH] Btrfs: kill BUG_ON() in btrfs_lookup_extent_info()
>
> Replace it with an ASSERT(0)
On Sun, Aug 02, 2015 at 08:51:30PM -0700, Marc MERLIN wrote:
> On Fri, Jul 24, 2015 at 09:24:46AM -0700, Marc MERLIN wrote:
> > > > > Screenshot: http://marc.merlins.org/tmp/btrfs_crash.jpg
> > >
> > > So it's 32bit system, 3.19.8, crashing during snapsho
On Sat, Aug 01, 2015 at 02:48:41PM -0600, Chris Murphy wrote:
> On Sat, Aug 1, 2015 at 2:42 PM, Hugo Mills wrote:
> > On Sat, Aug 01, 2015 at 11:29:40AM -0600, Chris Murphy wrote:
> >> Does someone with wiki edit capability want to put up a warning about
> >> btrfs-convert problems? I don't think
On Fri, Jul 24, 2015 at 09:24:46AM -0700, Marc MERLIN wrote:
> > > > Screenshot: http://marc.merlins.org/tmp/btrfs_crash.jpg
> >
> > So it's 32bit system, 3.19.8, crashing during snapshot deletion and
> > backref walking. EIP is in do_walk_down+0x142. I've
On Thu, Jul 23, 2015 at 01:55:59PM +0200, David Sterba wrote:
> On Sat, Jul 11, 2015 at 06:02:29PM -0700, Marc MERLIN wrote:
> > Are you interested in crash reports for fsck?
> >
> > If so, see my recent message:
> >
> > On Mon, Jul 06, 2015 at 02
On Wed, Jul 15, 2015 at 01:02:29PM -0500, Donald Pearson wrote:
> BTW, is anybody else experiencing btrfs-cleaner consuming heavy
> resources for a very long time when snapshots are removed?
Yes, that's normal. It spends a long time to reclaim blocks and free
them, especially if they are on a har
On Wed, Jul 15, 2015 at 09:42:28AM -0500, Donald Pearson wrote:
> Implementation question about your scripts Marc..
make sure you Cc me then, I could have missed that Email :)
> I've set up some routines for different backup and retention intervals
> and periods in cron but quickly ran in to step
On Wed, Jul 15, 2015 at 10:03:16AM +1000, Paul Harvey wrote:
> The way it works in snazzer (and btrbk and I think also btrfs-sxbackup
> as well), local snapshots continue to happen as normal (Eg. daily or
> hourly) and so when your backup media or backup server is finally
> available again, the siz
On Sat, Jul 11, 2015 at 08:55:23PM -0700, Marc MERLIN wrote:
> On Fri, Jul 10, 2015 at 12:46:24PM +0200, Axel Burri wrote:
> > On 2015-07-09 14:26, Martin Steigerwald wrote:
> >
> > > Well I may try it for one of my BTRFS volumes in addition to the rsync
> > >
On Fri, Jul 10, 2015 at 12:46:24PM +0200, Axel Burri wrote:
> On 2015-07-09 14:26, Martin Steigerwald wrote:
>
> > Well I may try it for one of my BTRFS volumes in addition to the rsync
> > backup for now. I would like to give all options on command line, but well,
> > maybe it can completely re
- fix wrong nbytes
Are you interested in crash reports for fsck?
If so, see my recent message:
On Mon, Jul 06, 2015 at 02:21:56PM -0700, Marc MERLIN wrote:
>
> myth:~# btrfs check --repair /dev/mapper/crypt_sdd1
> enabling repair mode
> Checking filesystem on /dev/mapper/crypt_sdd1
>
On Thu, Jul 09, 2015 at 02:26:55PM +0200, Martin Steigerwald wrote:
> Hi!
>
> I see Alex, the developer of btrbk posted here once about btrfs send and
> receive, but well any other users of btrbk¹? What are your experiences?
>
> I consider switching to it from my home grown rsync based backup sc
myth:~# btrfs check --repair /dev/mapper/crypt_sdd1
enabling repair mode
Checking filesystem on /dev/mapper/crypt_sdd1
UUID: 024ba4d0-dacb-438d-9f1b-eeb34083fe49
checking extents
cmds-check.c:4486: add_data_backref: Assertion `back->bytes != max_size` failed.
btrfs[0x8066a73]
btrfs[0x8066aa4]
btr
On Thu, Jun 25, 2015 at 08:17:12PM +, Ruslanas Gžibovskis wrote:
> nope. started from scratch! never upgrade from old running fs. Better to
> move 1 file and extend , move another files, extend and so on then just
> convert... It's like moving from windows and only boot partition to have on
> e
On Thu, Jun 18, 2015 at 02:05:04PM +0300, Robert Munteanu wrote:
> On Wed, Jun 17, 2015 at 8:46 PM, Marc MERLIN wrote:
> > On Fri, Jun 12, 2015 at 03:19:06PM +0300, Robert Munteanu wrote:
> >> Hi,
> >
> > Note to others: kernel 4.0.4
> >
> > Reply to you:
On Wed, Jun 24, 2015 at 06:38:42PM -0700, Marc MERLIN wrote:
> Known already fixed problem, or not?
>
> [680279.909435] kernel BUG at fs/btrfs/extent_io.c:4548!
> [680279.926208] invalid opcode: [#1] SMP
After reboot, I'm now seeing this if that helps:
[ 272.826942] BTRFS
Known already fixed problem, or not?
[680279.909435] kernel BUG at fs/btrfs/extent_io.c:4548!
[680279.926208] invalid opcode: [#1] SMP
[680279.940494] Modules linked in: udp_diag tcp_diag inet_diag loop veth
ip6table_filter ip6_tables ebtable_nat ebtables ppdev lp xt_addrtype bridge stp
llc
On Wed, Jun 24, 2015 at 11:40:21AM +0800, Cao jin wrote:
> Hi Marc,
> I can`t access /perso/btrfs/2014-03.html on that server. But I
> guess it has similar content as
> https://btrfs.wiki.kernel.org/index.php/Incremental_Backup ?
> If so, I am afraid incremental backup not suitable for a AP
On Tue, Jun 23, 2015 at 03:15:23PM +0800, Cao jin wrote:
> Hi all,
> I am considering implement the btrfs send/receive command in
> libguestfs(http://libguestfs.org/), and found that incremental send
> seems pretty complicated. So my questions is:
> 1. What is the most usually usage of btrfs
from 104K.
Are others seeing similar things?
Marc
On Thu, Jun 04, 2015 at 05:42:45PM +0900, Marc MERLIN wrote:
> Hi Chris,
>
> After our quick chat, I gave it a shot on 3.19.6, and things are better
> than last time I tried.
>
> legolas:/var/local/nobck/Virt
On Thu, Jun 18, 2015 at 09:56:09AM +0900, crocket wrote:
> I think that's not going to report only errors.
Outside of saying how long the scrub took, that's all it does.
If you're not quite happy with the output, grep -v is your friend :)
Marc
--
"A mouse is a device used to point at the xterm
On Wed, Jun 17, 2015 at 10:58:05AM -0700, Marc MERLIN wrote:
> You requested strace -T in the past. I'm showing an exerpt of system calls
> that take
> more than 1 second.
>
> When I see this, I get worried:
> truncate("/mnt/btrfs_pool2/backup/debian64/legolas/varcha
On Wed, May 13, 2015 at 12:35:20PM +0100, Filipe David Manana wrote:
> > It's a broad question, but how can I diagnose btrfs send being so slow
> > without taking the risk of killing my connection?
> > (if there is no good answer on this one, I can try another sync later
> > with -vvv and strace if
On Sat, Jun 13, 2015 at 10:48:35PM +0900, crocket wrote:
> I can check the result of 'btrfs scrub' later, but I don't want to
> take time to actually check it.
> Does anyone know how to make 'btrfs scrub' report errors via email?
> It seems google doesn't know.
See the bottom of:
http://marc.merli
On Fri, Jun 12, 2015 at 03:19:06PM +0300, Robert Munteanu wrote:
> Hi,
Note to others: kernel 4.0.4
Reply to you:
I tried ext4 to btrfs once a year ago and it severely mangled my
filesystem.
I looked at it as a cool feature/hack that may have worked some time ago, but
that no one really uses any
On Wed, Jun 17, 2015 at 01:51:26PM +, Duncan wrote:
> > Also, if my actual data got corrupted, am I correct that btrfs will
> > detect the checksum failure and give me a different error message of a
> > read error that cannot be corrected?
> >
> > I'll do a scrub later, for now I have to wait
I had a few power offs due to a faulty power supply, and my mdadm raid5
got into fail mode after 2 drives got kicked out since their sequence
numbers didn't match due to the abrupt power offs.
I brought the swraid5 back up by force assembling it with 4 drives (one
was really only a few sequence nu
Hi Chris,
After our quick chat, I gave it a shot on 3.19.6, and things are better
than last time I tried.
legolas:/var/local/nobck/VirtualBox VMs# lsattr Win7/
---C Win7/Logs
---C Win7/Snapshots
---C Win7/Win7.vdi
---C Win7/Win7.png
---C
kernel: 3.19.6
btrfs-tools 4.0 git
Cosmetic but just in case anyone would like to know:
440 out of about 411 chunks balanced (596 considered), -7% left
442 out of about 411 chunks balanced (598 considered), -8% left
444 out of about 411 chunks balanced (600 considered), -8% left
450 out of abou
On Sat, May 02, 2015 at 09:30:10AM -0700, Marc MERLIN wrote:
> btrfs-debug-tree -t 2 /dev/mapper/cryptroot 2>&1 | tee /tmp/debug_2.txt
>
> leaf 372551614464 items 125 free space 7363 generation 1911640 owner 2
> fs uuid 79a9a6c7-0955-4820-b81e-0c0681a657c1
> chunk uuid a
On Sat, May 02, 2015 at 12:50:14PM -0400, Christian Dysthe wrote:
> Mine is still doing it. This is from today's log:
>
> /etc/cron.daily/btrfs-scrub:
> WARNING: device 0 not present
> scrub device /dev/sda3 (id 1) done
> scrub started at Sat May 2 08:03:46 2015 and finished after 241 secon
I'm getting this from my send/receive job.
I'm just going to delete that one file since I don't need it anyway, but
is this a known problem or something that would need more info from me?
ERROR: failed to clone extents to
merlin/.config/google-chrome-beta-42/Default/Application Cache/Cache/data
On Sun, Apr 26, 2015 at 03:32:26PM +, Hugo Mills wrote:
>The usual reason for this is that btrfs dev scan isn't being run
> properly. It's usually handled by udev -- most distributions will put
> the appropriate hooks in their udev configuration if you have the
> distribution's btrfs-progs
This is the weirdest thing:
gargamel:/var/log# mount /dev/mapper/raid0d2 /mnt/btrfs_space
mount: wrong fs type, bad option, bad superblock on /dev/mapper/raid0d2,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail
On Thu, Apr 23, 2015 at 03:43:35AM +, Duncan wrote:
> Thomas Koch posted on Wed, 22 Apr 2015 18:08:30 +0200 as excerpted:
>
> > for incremental backups it would be useful to know the files that
> > changed between two snapshots. I found a paper about such a tool[1] that
> > adds the "btrfs sub
On Mon, Apr 20, 2015 at 10:27:05AM +, Hugo Mills wrote:
>See the first issue here: https://btrfs.wiki.kernel.org/index.php/Gotchas
Hi Hugo, looking at the page again, I see
"bcache + btrfs does not seem to be stable yet"
linking to a thread more than 2 years old and btrfs kernels that
wou
On Thu, Apr 16, 2015 at 06:48:43PM +, Miguel Negrão wrote:
> Hello,
>
> I'm running a laptop, macbook pro 8,2, with ubuntu, on kernel
> 3.13.0-49-lowlatency. I have a USB enclosure containing two harddrives
Btrfs send/receive is not known to work well enough until 3.14.x, and
several corrupti
On Mon, Apr 13, 2015 at 08:37:01PM +0800, Anand Jain wrote:
> my troubleshooting experience says have unique error string per module.
+1 to that, thank you.
Marc
> In the below eg, its one additional step to know error line,
>
> cat -n cmds-device.c | egrep "error removing the device"
>185
Thank you for trying btrfs, it's great for snapshots in docker, but
outside of the 2 helpful comments you already got, do yourself a favour
and use a newer kernel.
Btrfs moves fast, and 3.13 is way too old. The number of bugs (including
corruption bugs) that has been fixed since then is too long t
On Wed, Jan 14, 2015 at 05:09:28PM -0700, Chris Murphy wrote:
> Following the trail backward leads to this one
> http://wiki.drewhess.com/wiki/Creating_an_encrypted_filesystem_on_a_partition
>
> Which has a subheading "md RAID array" that starts out:
>
> "If the device to be encrypted is an md RA
On Sat, Mar 21, 2015 at 07:26:41PM +0100, Petr Bena wrote:
> There is a dozen of cases where you want to just compress some folders
> in your system, but you don't want to compress whole device, would you
> create a subvolume for each of them?
Actually with the previous reply you got, I'm not sur
On Mon, Jan 12, 2015 at 05:02:00PM +0100, Patrik Lundquist wrote:
> Hi,
>
> I've been looking at recommended cryptsetup options for Btrfs and I
> have one question:
>
> Marc uses "cryptsetup luksFormat --align-payload=1024" directly on a
> disk partition and not on e.g. a striped mdraid. Is there
On Sun, Jan 04, 2015 at 01:45:41AM -0700, Chris Murphy wrote:
> On Sat, Jan 3, 2015 at 10:40 PM, Dyweni - BTRFS
> wrote:
> > Hi All,
> >
> > Can BTRFS ignore bad blocks as they are discovered?
> >
> > I want to try BTRFS on some older drives, but they all have a few bad
> > blocks.
>
> Not curre
Chris, you rule, I applied this to 3.16.7 and my problem went away.
Tested-By: Marc MERLIN
Happy new year! :)
Marc
On Wed, Dec 31, 2014 at 01:30:13PM -0500, Chris Mason wrote:
> Commit 1d52c78afbb (Btrfs: try not to ENOSPC on log replay) added a
> check to skip delayed inode updates
On Mon, Dec 29, 2014 at 10:17:00AM -0500, Chris Mason wrote:
> I've hit this recently on my laptop, and haven't yet been able to
> recreate it on a machine where I can debug things. The messages are
> an error in the log tree replay code, and I don't think they are
> actually related to any corrup
On Mon, Dec 29, 2014 at 01:00:47AM +0500, Roman Mamedov wrote:
> > Will btrfs scrub, even if it takes about 24H to run for me, tell me
> > which FS is affected and if so do I run btrfs repair?
>
> I had this: http://www.spinics.net/lists/linux-btrfs/msg40586.html
>
> 1) I determined which btrfs o
Not sure if it's useful to anyone, but there you go. This happened after a
forced
power cycle:
BTRFS info (device dm-1): disk space caching is enabled
[ cut here ]
WARNING: CPU: 2 PID: 778 at fs/btrfs/delayed-inode.c:1410
btrfs_assert_delayed_root_empty+0x32/0x34()
Module
On Sun, Nov 23, 2014 at 07:52:29AM +, Duncan wrote:
> > Right. So, why would you rebalance empty chunks or near empty chunks?
> > Don't you want to rebalance almost full chunks first, and work you way
> > to less and less full as needed?
>
> No, the closer to empty a chunk is, the more effect
On Fri, Dec 05, 2014 at 12:28:57PM -0500, moparisthebest wrote:
> Hello all,
>
> I had a 6-device array I added a 4tb device to last night and ran the
> command to remove a previous 4tb device that still worked fine
> overnight. Unfortunately, one of the OTHER devices completely failed
> while th
On Tue, Dec 02, 2014 at 06:33:38AM +0100, MegaBrutal wrote:
> 2014-12-01 17:39 GMT+01:00 Shriramana Sharma :
> >
> > When btrfs has so many features (esp snapshots) to prevent user
> > accidentally deleting data (I liked especially
> > http://www.youtube.com/v/9H7e6BcI5Fo?start=209) I think there h
On Sun, Nov 30, 2014 at 03:57:06PM +0530, Shriramana Sharma wrote:
> On Sun, Nov 30, 2014 at 9:51 AM, Marc MERLIN wrote:
> >
> >> So the Ubuntu Wiki BtrFS entry advises against using subvol
> >> set-default because it boots its kernel using root=subvol=@ and home
>
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