On Friday 04 of May 2012 08:00:59 Arne Jansen wrote:
On 04.05.2012 05:19, Mark Murawski wrote:
I think I have some failing hard drives, they are disconnected for now.
stan {~} root# btrfs filesystem show
Label: none uuid: d71404d4-468e-47d5-8f06-3b65fa7776aa
Total devices 2
Looks like after btrfs read error corrected of chunk tree block while
reading the chunk tree in open_ctree(), we stay in atomic state (in
3.4-rc5).
The steps:
# mkfs.btrfs -d raid1 -m raid1 /dev/sdv /dev/sdw /dev/sdi
# mount /dev/sdv /mnt
fill /mnt to 25% full
# umount /mnt
disconnect /dev/sdw
#
On Fri, May 04, 2012 at 10:43:16AM +0700, Fajar A. Nugraha wrote:
Is btrfs-zero-log still relevant? I imagine losing several last
transactions is MUCH more convinient than having to recreate the
enitre fs (even if restore managed to salvage everything).
IMHO it is, a few days ago this helped
where do I submit the code when I'm done?
P.S. This is my first kernel project, so I'm going to need some direction.
wiki page 'Writing patch for btrfs' has this info
http://btrfs.ipv5.de/index.php?title=Writing_patch_for_btrfs
good luck.
-Anand
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On Fri, May 04, 2012 at 12:18:51PM +0200, Stefan Behrens wrote:
Looks like after btrfs read error corrected of chunk tree block while
reading the chunk tree in open_ctree(), we stay in atomic state (in
3.4-rc5).
I'm having a hard time reproducing this here. Do you have lockdep on?
It might
On Fri, May 04, 2012 at 09:25:36AM -0400, Chris Mason wrote:
I'm having a hard time reproducing this here. Do you have lockdep on?
It might tell us which lock we're leaving around.
He's using SLUB and it does not like waiting allocations when
CONFIG_SLUB_DEBUG is on:
445 #ifdef
On Fri, May 04, 2012 at 03:36:16PM +0200, David Sterba wrote:
On Fri, May 04, 2012 at 09:25:36AM -0400, Chris Mason wrote:
I'm having a hard time reproducing this here. Do you have lockdep on?
It might tell us which lock we're leaving around.
He's using SLUB and it does not like waiting
On 5/4/2012 3:25 PM, Chris Mason wrote:
On Fri, May 04, 2012 at 12:18:51PM +0200, Stefan Behrens wrote:
Looks like after btrfs read error corrected of chunk tree block while
reading the chunk tree in open_ctree(), we stay in atomic state (in
3.4-rc5).
I'm having a hard time reproducing this
On Fri, May 04, 2012 at 05:20:16PM +0200, Stefan Behrens wrote:
On 5/4/2012 3:25 PM, Chris Mason wrote:
On Fri, May 04, 2012 at 12:18:51PM +0200, Stefan Behrens wrote:
Looks like after btrfs read error corrected of chunk tree block while
reading the chunk tree in open_ctree(), we stay in
Greetings,
I have a few questions pertaining to BTRFS RAID. I know it's been rumored a
lot recently that kernel 3.4 will have RAID5/6 support, is this still the case.
Also, is it possible to change from a single drive system to a raid system or
even a multi drive system without raid to a
On Fri, May 04, 2012 at 05:20:16PM +0200, Stefan Behrens wrote:
On 5/4/2012 3:25 PM, Chris Mason wrote:
On Fri, May 04, 2012 at 12:18:51PM +0200, Stefan Behrens wrote:
Looks like after btrfs read error corrected of chunk tree block while
reading the chunk tree in open_ctree(), we stay in
hello everyone,
I made an overall benchmark of BTRFS against EXT4 and XFS. I'm quite
unhappy with BTRFS results, so maybe tuning was not perfect.
http://www.slideshare.net/ezameku/btrfs-benchmark
All data is vectorial, so download the PDF and you can zoom ;)
If you have any feedback on how to
On Fri, May 04, 2012 at 06:03:50PM +0200, Olivier Doucet wrote:
hello everyone,
I made an overall benchmark of BTRFS against EXT4 and XFS. I'm quite
unhappy with BTRFS results, so maybe tuning was not perfect.
http://www.slideshare.net/ezameku/btrfs-benchmark
All data is vectorial, so
On Fri, May 04, 2012 at 09:46:15AM -0500, Michael Bailey wrote:
Greetings,
I have a few questions pertaining to BTRFS RAID. I know it's been rumored a
lot recently that kernel 3.4 will have RAID5/6 support, is this still the
case.
It seem to be wrong. Chris Mason hinted that RAID5/6
Hi!
merkaba:~ btrfs balance start -m /
ERROR: error during balancing '/' - No space left on device
There may be more info in syslog - try dmesg | tail
merkaba:~#19 dmesg | tail -22
[ 62.918734] CPU0: Package power limit normal
[ 525.229976] btrfs: relocating block group 20422066176 flags 1
[
__merge_refs was deleting unresolved prelim refs resulting in missed
backrefs in the backref walking code. Thanks to Arne and Jan for finding
this.
Signed-off-by: Alexander Block abloc...@googlemail.com
---
fs/btrfs/backref.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff
1. in btrfs_find_all_roots
This method uses a ulist to solve the recursion. The local variable
node is used in combination with ulist_next to iterate through the
list. Calls to find_parent_nodes fill up this list. The problem is,
adding new nodes to the ulist may cause the ulist-nodes
The comment above ulist_next stated that it's allowed to call ulist_add
while enumerating. This is actually not allowed as an add may realocate
the nodes buffer und thus make the prev pointer invalid.
Signed-off-by: Alexander Block abloc...@googlemail.com
---
fs/btrfs/ulist.c |4 ++--
1
On 05/04/12 20:54, Alexander Block wrote:
The comment above ulist_next stated that it's allowed to call ulist_add
while enumerating. This is actually not allowed as an add may realocate
the nodes buffer und thus make the prev pointer invalid.
Signed-off-by: Alexander
2012/5/3 Josef Bacik jo...@redhat.com:
On Thu, May 03, 2012 at 09:38:27AM -0700, Josh Durgin wrote:
On Thu, 3 May 2012 11:20:53 -0400, Josef Bacik jo...@redhat.com
wrote:
On Thu, May 03, 2012 at 08:17:43AM -0700, Josh Durgin wrote:
Yeah all that was in the right place, I rebooted and I
On Fri, May 4, 2012 at 10:07 AM, Josef Bacik jo...@redhat.com wrote:
On Fri, May 04, 2012 at 06:03:50PM +0200, Olivier Doucet wrote:
hello everyone,
I made an overall benchmark of BTRFS against EXT4 and XFS. I'm quite
unhappy with BTRFS results, so maybe tuning was not perfect.
On Fri, May 04, 2012 at 06:03:50PM +0200, Olivier Doucet wrote:
hello everyone,
I made an overall benchmark of BTRFS against EXT4 and XFS. I'm quite
unhappy with BTRFS results, so maybe tuning was not perfect.
http://www.slideshare.net/ezameku/btrfs-benchmark
All data is vectorial, so
Hi,
I uploaded the PDF on Dropbox that does not require login
https://www.dropbox.com/s/5i8l0kmdutxj6pb/sysbench-sas3t-btrfs1.pdf
Can you tell us what the unit of the Y-axis is? Is it MB/s or IOPs
or time for a fixed amount data or... ?
Unit is MB/s ;
For each test, I gather speed every
Using the latest mason git (and kernel 3.3.4)
stan {~} root# btrfs filesystem show
Label: none uuid: d71404d4-468e-47d5-8f06-3b65fa7776aa
Total devices 2 FS bytes used 7.09GB
devid2 size 9.31GB used 9.09GB path /dev/sdd6
devid1 size 9.31GB used 9.09GB path
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