Hello all
We are experimenting with btrfs and we've run into some problems.
We are running on two Sun Storage J4400 Arrays containing a total of
48 1 TB disks.
With 24 disks in the btrfs:
# mkfs.btrfs /dev/sd[b-y]
WARNING! - Btrfs Btrfs v0.19 IS EXPERIMENTAL
WARNING! - see http://btrfs.wiki.ke
Andi Drebes wrote:
Hi!
I recently tried to mount a filesystem in RAID1 mode using loopback devices. I
followed the instructions at [1]. Here's exactly what I've done:
$ dd if=/dev/zero of=raid1_0.img bs=1M count=500
$ dd if=/dev/zero of=raid1_1.img bs=1M count=500
$ mkfs.btrfs -m raid1 -d raid1
Managed to get some kernel logs this time. Some sort of deadlock?
Nov 19 18:16:54 hideout kernel: [ 721.780120] INFO: task python:2318 blocked
for more than 120 seconds.
Nov 19 18:16:54 hideout kernel: [ 721.780127] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
No
I forgot to mention, this is using Ubuntu Karmic's 2.6.31 kernel, with btrfs
modules built from the btrfs-unstable.git latest head.
On Nov 19, 2009, at 6:05 PM, John Dong wrote:
> While attempting to do a full filesystem defrag and checking output of df -h,
> I've been able to fairly consistentl
While attempting to do a full filesystem defrag and checking output of df -h,
I've been able to fairly consistently generate a hang:
i.e. find / -type f -print0 | xargs -0i btrfsctl -d '{}'
and in another terminal, did "watch df -h"
Before long, everything hangs, iowait is near 100%, and no IO
Hi!
I recently tried to mount a filesystem in RAID1 mode using loopback devices. I
followed the instructions at [1]. Here's exactly what I've done:
$ dd if=/dev/zero of=raid1_0.img bs=1M count=500
$ dd if=/dev/zero of=raid1_1.img bs=1M count=500
$ mkfs.btrfs -m raid1 -d raid1 raid1_0.img raid1_1.
On Wed, Nov 18, 2009 at 09:59:24AM -0800, Roland Dreier wrote:
>
> > > Yeah df is just a fun ball of wax in many respects. We don't take into
> account
> > > RAID and we don't subtrace space thats strictly for metadata, so there
> are
> > > several things that need to be fixed for df. Thank
I got following kernel oops when trying to compile kernel on btrfs
partation on my laptop.
-pragnesh
Nov 19 00:38:53 linux-xfxc kernel: [22504.896045] [ cut
here ]
Nov 19 00:38:53 linux-xfxc kernel: [22504.896052] kernel BUG at
/usr/src/packages/BUILD/kernel-desktop-2.6.31
