similar to: Looking for a Mentor

Hi, Will btrfs/oracle mentor students for this year''s "Google Summer of Code 2011"? I would like to work on a Windows-IFS driver which uses coLinux as a "backend" - and therefor support all Filesystems the Linux kernel has drivers for. Although not as cool as a native btrfs driver for windows, in the long term this could be even more profitable for btrfs - without

Hi Thomas, >----Messaggio originale---- >Da: thomas@kupper.org >Data: 22/01/2010 10.48 >A: "Leszek Ciesielski"<skolima@gmail.com> >Cc: "linux-btrfs"<linux-btrfs@vger.kernel.org> >Ogg: Re: mount command not honoring rootflags passed > > >On 22 Jan 2010, at 10:40, Leszek Ciesielski wrote: > >> On Fri, Jan 22, 2010 at 10:30 AM,

HI all, >----Messaggio originale---- >Da: chris.mason@fusionio.com >Data: 20/06/2012 1.49 >A: "H. Peter Anvin"<hpa@zytor.com> >Cc: "linux-btrfs@vger.kernel.org"<linux-btrfs@vger.kernel.org> >Ogg: Re: Subvolumes and /proc/self/mountinfo > >> b. Are there better ways (walking the tree using BTRFS_IOC_TREE_SEARCH?) >> to accomplish

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.kernel.org before using adding device /dev/sdc id 2 ... adding device /dev/sdy id 24 fs

Hey guys, I was trying to build the btrfs modules from btrfs- unstable.git/master against the Ubuntu Karmic 2.6.31 kernel, and get some failures in ref-cache.c: /home/jdong/code/kernel/btrfs-0.17/ref-cache.h:62: error: dereferencing pointer to incomplete type /home/jdong/code/kernel/btrfs-0.17/ref-cache.c: In function ‘btrfs_remove_leaf_refs’:

I made a btrfs on five disks using RAID5 (-d raid5 for mount option). When a power failure occurs, I can not remount btrfs after my system reboots. Dmesg for remount is presented as following: [ 192.713953] bio: create slab <bio-1> at 1 [ 192.716230] Btrfs loaded [ 192.717177] device fsid a0dff7ea-9354-43fd-8516-0e17f370991d devid 1 transid 6 /dev/sdb [ 192.717712] btrfs: disk space

This fixes: btrfs-list.c: Dans la fonction «ino_resolve» : btrfs-list.c:511: attention : déclaration implicite de la fonction « «strndup» » btrfs-list.c:511: attention : incompatible implicit declaration of built-in function «strndup» make: *** [btrfs-list.o] Erreur 1 and: btrfs.c: Dans la fonction «split_command» : btrfs.c:168: attention : déclaration implicite de la fonction « «strndup» »

3.8.0+ #3 This happened after ''umount /btrfs'' was interrupted by ctl-C # mount | egrep btrfs /dev/mapper/mpathe on /btrfs type btrfs (rw,degraded) # cat /etc/mtab | egrep btrfs /dev/mapper/mpathe /btrfs btrfs rw,degraded 0 0 # cat /proc/mounts | egrep btrfs # umount /btrfs umount: /btrfs: not mounted # -Anand -- To unsubscribe from this list: send the line "unsubscribe

Since 2.6.29-rc1 contains btrfs I had to try it. However the loopback mount of my btrfs formatted file fails: user@host:~$ dd if=/dev/zero of=btrfs.img bs=1MB count=512 user@host:~$ mkfs.btrfs btrfs.img fs created label (null) on btrfs.img nodesize 4096 leafsize 4096 sectorsize 4096 size 488.28MB Btrfs v0.16+da35ab2b0b54 user@host:~$ sudo mount -t btrfs -o loop btrfs.img /mnt/btrfs mount:

It is well documented that btrfs data recovery (after silent corruption) is dependent on the use of btrfs''s own RAID1. However, I''m curious about whether any hardware RAID vendors are contemplating ways to integrate more closely with btrfs, for example, such that when btrfs detects a bad checksum, it would be able to ask the hardware RAID controller to return all alternate

The condition can be relaxed to accept also 0 which will delete unoccupied chunks and does not need space for the actual data relocation. Until there is an automatic empty chunk reclaim, we can use this as a last resort option under enospc. CC: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: David Sterba <dsterba@suse.cz> --- Also needs progs update, but is not required for the

Josef has implemented mixed data/metadata chunks, we must add those chunks'' space just like data chunks. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> --- fs/btrfs/super.c | 7 +++---- 1 files changed, 3 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 61bd79a..1d21208 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -768,11 +768,10

Hi, I scrubbed a BTRFS volume (mounted as a VFS root) and got several errors. However I am not able to make btrfs print the path of the corrupted files... E.g. kernel log gives : [51078.682876] btrfs: unable to fixup (regular) error at logical 51241746432 on dev /dev/root [51078.683013] btrfs: checksum error at logical 51242385408 on dev /dev/root, sector 102196320, root 684, inode 60676040,

From: Sergei Trofimovich <slyfox@gentoo.org> $ LDFLAGS=-static make gcc -lpthread -g -O0 -o btrfs btrfs.o btrfs_cmds.o scrub.o \ ctree.o disk-io.o radix-tree.o extent-tree.o print-tree.o root-tree.o dir-item.o file-item.o inode-item.o inode-map.o crc32c.o rbtree.o extent-cache.o extent_io.o volumes.o utils.o btrfs-list.o btrfslabel.o -static -luuid scrub.o: In function

When using "-U" option with btrfs-corrupt-block, it will cause a segfault due to a missing break in getopt switch. Reported-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> --- btrfs-corrupt-block.c | 1 + 1 file changed, 1 insertion(+) diff --git a/btrfs-corrupt-block.c b/btrfs-corrupt-block.c index f0c14a9..a2828d4 100644

Hi! The problem is that the BTRFS raid10 filesystem without any understandable cause refuses to mount. Here is dmesg output: [77847.845540] device label linux-btrfs-raid10 devid 3 transid 45639 /dev/sdc1 [77848.633912] btrfs: allowing degraded mounts [77848.633917] btrfs: enabling auto defrag [77848.633919] btrfs: use lzo compression [77848.633922] btrfs: turning on flush-on-commit [77848.658879]

Hello, trying out btrfs on my linux installation. I am running Funtoo with Linux 3.0 kernel. After a reboot kernel panicked (no access to error log since it is my root volume that failed). I get this using a rescue cd (2.6.38, btrfs v 0.19) and then trying to mount : [  752.129118] btrfs bad tree block start 0 131072 [  752.129152] btrfs: failed to read chunk root on sda5 [  752.132190] btrfs:

Hi, I am using btrfs for remote backups (via rsync), with daily and weekly snapshots. I see these messages in kern.log: Jul 18 07:09:43 backup1 kernel: [3437126.458374] btrfs: unlinked 9 orphans Jul 18 12:01:01 backup1 kernel: [3454604.905856] btrfs: unlinked 1 orphans Jul 18 13:01:51 backup1 kernel: [3458254.990199] btrfs: unlinked 1 orphans Jul 19 04:01:41 backup1 kernel: [3512244.236347]

Hello, btrfs is failing to mount if I use the mount option acl. I am running debian testing with a debian experimental version of kernel 3.7.3: uname -a Linux nimby 3.7-trunk-486 #1 Debian 3.7.3-1~experimental.1 i686 GNU/Linux from fstab LABEL=btrfs-exthd /mnt/exthd btrfs defaults,noatime,compress=zlib,acl 0 2 from dmesg [ 14.785716] device label btrfs-exthd devid 1 transid

To reproduce the bug: # mount -o nodatacow /dev/sda7 /mnt/ # dd if=/dev/zero of=/mnt/tmp bs=4K count=1 1+0 records in 1+0 records out 4096 bytes (4.1 kB) copied, 0.000136115 s, 30.1 MB/s # dd if=/dev/zero of=/mnt/tmp bs=4K count=1 conv=notrunc oflag=direct dd: writing `/mnt/tmp'': Input/output error 1+0 records in 0+0 records out btrfs_ordered_update_i_size() may return