Re: System completely unresponsive after `btrfs balance start -dconvert=raid0 /` and `btrfs fi show /`

2015-10-15 Thread Duncan
Zygo Blaxell posted on Thu, 15 Oct 2015 00:39:27 -0400 as excerpted: > As others have pointed out, the raid0 allocator has a 2-disk-minimum > constraint, so any difference in size between the largest and > second-largest disk is unusable. In your case that's 73% of the raw > space. > > If the

Re: System completely unresponsive after `btrfs balance start -dconvert=raid0 /` and `btrfs fi show /`

2015-10-14 Thread Hugo Mills
On Wed, Oct 14, 2015 at 05:08:17AM +, Duncan wrote: > Carmine Paolino posted on Tue, 13 Oct 2015 23:21:49 +0200 as excerpted: > > > I have an home server with 3 hard drives that I added to the same btrfs > > filesystem. Several hours ago I run `btrfs balance start -dconvert=raid0 > > /` and

Re: System completely unresponsive after `btrfs balance start -dconvert=raid0 /` and `btrfs fi show /`

2015-10-14 Thread Duncan
Hugo Mills posted on Wed, 14 Oct 2015 09:13:25 + as excerpted: > On Wed, Oct 14, 2015 at 05:08:17AM +, Duncan wrote: >> Carmine Paolino posted on Tue, 13 Oct 2015 23:21:49 +0200 as excerpted: >> >> > I have an home server with 3 hard drives that I added to the same >> > btrfs filesystem.

Re: System completely unresponsive after `btrfs balance start -dconvert=raid0 /` and `btrfs fi show /`

2015-10-14 Thread Zygo Blaxell
On Tue, Oct 13, 2015 at 11:21:49PM +0200, Carmine Paolino wrote: > I have an home server with 3 hard drives that I added to the same btrfs > filesystem. Several hours ago I run `btrfs balance start -dconvert=raid0 > /` and as soon as I run `btrfs fi show /` I lost my ssh connection to > the

Re: System completely unresponsive after `btrfs balance start -dconvert=raid0 /` and `btrfs fi show /`

2015-10-14 Thread Austin S Hemmelgarn
On 2015-10-14 05:13, Hugo Mills wrote: On Wed, Oct 14, 2015 at 05:08:17AM +, Duncan wrote: Carmine Paolino posted on Tue, 13 Oct 2015 23:21:49 +0200 as excerpted: I have an home server with 3 hard drives that I added to the same btrfs filesystem. Several hours ago I run `btrfs balance

Re: System completely unresponsive after `btrfs balance start -dconvert=raid0 /` and `btrfs fi show /`

2015-10-13 Thread Duncan
Carmine Paolino posted on Tue, 13 Oct 2015 23:21:49 +0200 as excerpted: > I have an home server with 3 hard drives that I added to the same btrfs > filesystem. Several hours ago I run `btrfs balance start -dconvert=raid0 > /` and as soon as I run `btrfs fi show /` I lost my ssh connection to >

System completely unresponsive after `btrfs balance start -dconvert=raid0 /` and `btrfs fi show /`

2015-10-13 Thread Carmine Paolino
Hi all, I have an home server with 3 hard drives that I added to the same btrfs filesystem. Several hours ago I run `btrfs balance start -dconvert=raid0 /` and as soon as I run `btrfs fi show /` I lost my ssh connection to the machine. The machine is still on, but it doesn’t even respond to

Re: Upgrade to 3.14.0 messed up raid0 array (btrfs cleaner crashes in fs/btrfs/extent-tree.c:5748 and fs/btrfs/free-space-cache.c:1183 )

2014-04-09 Thread Marc MERLIN
On Tue, Apr 08, 2014 at 10:31:39PM -0700, Marc MERLIN wrote: On Tue, Apr 08, 2014 at 09:31:25PM -0700, Marc MERLIN wrote: On Tue, Apr 08, 2014 at 07:49:14PM -0400, Chris Mason wrote: On 04/08/2014 06:09 PM, Marc MERLIN wrote: I forgot to add that while I'm not sure if anyone ended

Re: Upgrade to 3.14.0 messed up raid0 array (btrfs cleaner crashes in fs/btrfs/extent-tree.c:5748 and fs/btrfs/free-space-cache.c:1183 )

2014-04-09 Thread Chris Mason
On 04/09/2014 11:42 AM, Marc MERLIN wrote: On Tue, Apr 08, 2014 at 10:31:39PM -0700, Marc MERLIN wrote: On Tue, Apr 08, 2014 at 09:31:25PM -0700, Marc MERLIN wrote: On Tue, Apr 08, 2014 at 07:49:14PM -0400, Chris Mason wrote: On 04/08/2014 06:09 PM, Marc MERLIN wrote: I forgot to add

Re: Upgrade to 3.14.0 messed up raid0 array (btrfs cleaner crashes in fs/btrfs/extent-tree.c:5748 and fs/btrfs/free-space-cache.c:1183 )

2014-04-09 Thread Marc MERLIN
On Wed, Apr 09, 2014 at 11:46:13AM -0400, Chris Mason wrote: Downloading the image now. I'd just run a readonly btrfsck /dev/xxx http://marc.merlins.org/tmp/btrfs-raid0-image-fsck.txt (6MB) I admit to not knowing how to read that output, I've only ever seen thousands of lines of output from

Re: Upgrade to 3.14.0 messed up raid0 array (btrfs cleaner crashes in fs/btrfs/extent-tree.c:5748 and fs/btrfs/free-space-cache.c:1183 )

2014-04-09 Thread Chris Mason
On 04/09/2014 12:51 PM, Marc MERLIN wrote: On Wed, Apr 09, 2014 at 11:46:13AM -0400, Chris Mason wrote: Downloading the image now. I'd just run a readonly btrfsck /dev/xxx https://urldefense.proofpoint.com/v1/url?u=http://marc.merlins.org/tmp/btrfs-raid0-image-fsck.txtk

Re: Upgrade to 3.14.0 messed up raid0 array (btrfs cleaner crashes in fs/btrfs/extent-tree.c:5748 and fs/btrfs/free-space-cache.c:1183 )

2014-04-09 Thread Duncan
Marc MERLIN posted on Wed, 09 Apr 2014 09:51:34 -0700 as excerpted: But since we're talking about this, is btrfsck ever supposed to return clean on a clean filesystem? FWIW, it seems to return clean here, on everything I've tried it on. But I run relatively small partitions (the biggest is I

Upgrade to 3.14.0 messed up raid0 array (btrfs cleaner crashes in fs/btrfs/extent-tree.c:5748 and fs/btrfs/free-space-cache.c:1183 )

2014-04-08 Thread Marc MERLIN
Soon after upgrading my server from 3.14rc5 to 3.14.0, my server went into a crash loop. Unfortunately because I used btrfs on my root filesystem, the problem didn't get logged because btrfs failing on a separate array prevented another thread to use btrfs to write on a healthy /var filesystem.

Re: Upgrade to 3.14.0 messed up raid0 array (btrfs cleaner crashes in fs/btrfs/extent-tree.c:5748 and fs/btrfs/free-space-cache.c:1183 )

2014-04-08 Thread Marc MERLIN
I forgot to add that while I'm not sure if anyone ended up looking at the last image I made regarding https://bugzilla.kernel.org/show_bug.cgi?id=72801 I can generate a an image of that filesystem if that helps, or try other commands which hopefully won't crash my running server :) (filesystem is

Re: Upgrade to 3.14.0 messed up raid0 array (btrfs cleaner crashes in fs/btrfs/extent-tree.c:5748 and fs/btrfs/free-space-cache.c:1183 )

2014-04-08 Thread Chris Mason
On 04/08/2014 06:09 PM, Marc MERLIN wrote: I forgot to add that while I'm not sure if anyone ended up looking at the last image I made regarding https://bugzilla.kernel.org/show_bug.cgi?id=72801 I can generate a an image of that filesystem if that helps, or try other commands which hopefully

Re: Upgrade to 3.14.0 messed up raid0 array (btrfs cleaner crashes in fs/btrfs/extent-tree.c:5748 and fs/btrfs/free-space-cache.c:1183 )

2014-04-08 Thread Marc MERLIN
On Tue, Apr 08, 2014 at 07:49:14PM -0400, Chris Mason wrote: On 04/08/2014 06:09 PM, Marc MERLIN wrote: I forgot to add that while I'm not sure if anyone ended up looking at the last image I made regarding https://bugzilla.kernel.org/show_bug.cgi?id=72801 I can generate a an image of

Re: Upgrade to 3.14.0 messed up raid0 array (btrfs cleaner crashes in fs/btrfs/extent-tree.c:5748 and fs/btrfs/free-space-cache.c:1183 )

2014-04-08 Thread Marc MERLIN
mount, but even after that, I still got the crash, so let me take an image first Then, what fsck options do you recommend? Here is the image (1.5GB): http://marc.merlins.org/tmp/btrfs-raid0-image Please let me know when I can remove it. It was taken right after I tried a mount again

Re: Raid0 with btrfs

2010-08-07 Thread Leonidas Spyropoulos
, Hubert Kario h...@qbs.com.pl wrote: On Thursday 05 August 2010 16:15:22 Leonidas Spyropoulos wrote: Hi all, I want to make a btrfs raid0 on 2 partitions of my pc. Until now I am using the mdadm tools to make a software raid of the 2 partitions /dev/sde2, /dev/sdd2 and then mkfs.etx4 the newly

Re: Raid0 with btrfs

2010-08-07 Thread Leonidas Spyropoulos
by my cpu speed? AMD Opteron 165 @ 2700 Mhz On Thu, Aug 5, 2010 at 3:40 PM, Hubert Kario h...@qbs.com.pl wrote: On Thursday 05 August 2010 16:15:22 Leonidas Spyropoulos wrote: Hi all, I want to make a btrfs raid0 on 2 partitions of my pc. Until now I am using the mdadm tools to make

Re: Raid0 with btrfs

2010-08-06 Thread Sebastian 'gonX' Jensen
all, I want to make a btrfs raid0 on 2 partitions of my pc. Until now I am using the mdadm tools to make a software raid of the 2 partitions /dev/sde2, /dev/sdd2 and then mkfs.etx4 the newly created /dev/md0 device. From performance point of view is it better to keep the configuration

Re: Raid0 with btrfs

2010-08-06 Thread Hubert Kario
, Hubert Kario h...@qbs.com.pl wrote: On Thursday 05 August 2010 16:15:22 Leonidas Spyropoulos wrote: Hi all, I want to make a btrfs raid0 on 2 partitions of my pc. Until now I am using the mdadm tools to make a software raid of the 2 partitions /dev/sde2, /dev/sdd2 and then mkfs.etx4

Re: Raid0 with btrfs

2010-08-06 Thread Sebastian 'gonX' Jensen
Spyropoulos wrote: Hi all, I want to make a btrfs raid0 on 2 partitions of my pc. Until now I am using the mdadm tools to make a software raid of the 2 partitions /dev/sde2, /dev/sdd2 and then mkfs.etx4 the newly created /dev/md0 device. From performance point of view is it better to keep

Raid0 with btrfs

2010-08-05 Thread Leonidas Spyropoulos
Hi all, I want to make a btrfs raid0 on 2 partitions of my pc. Until now I am using the mdadm tools to make a software raid of the 2 partitions /dev/sde2, /dev/sdd2 and then mkfs.etx4 the newly created /dev/md0 device. From performance point of view is it better to keep the configuration of mdadm

Re: Raid0 with btrfs

2010-08-05 Thread Hubert Kario
On Thursday 05 August 2010 16:15:22 Leonidas Spyropoulos wrote: Hi all, I want to make a btrfs raid0 on 2 partitions of my pc. Until now I am using the mdadm tools to make a software raid of the 2 partitions /dev/sde2, /dev/sdd2 and then mkfs.etx4 the newly created /dev/md0 device. From