similar to: Btrfs v0.4 available (warning: disk format change)

When trying to move my root to a btrfs filesystem, I found a missing feature (or a bug). It's not possible to create device files. To reproduce, run this on a btrfs filesystem: mknod test c 1 1 result: mknod: `test': Operation not permitted Frank

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:

btree_releasepage is a callback and can be passed unknown gfp flags and then they may end up in kmem_cache_alloc called from alloc_extent_state, slab allocator will BUG_ON when there is HIGHMEM or DMA32 flag set. This may happen when btrfs is mounted from a loop device, which masks out __GFP_IO flag. The check in try_release_extent_state 3399 if ((mask & GFP_NOFS) ==

Hello everybody, I've my Gentoo's /usr/portage on a loopback btrfs. Just wanted to sync and got an oops. I've a rsync and a ls process in status D now. The system has been in suspend (tuxonice 3.0-rc3) with mounted btrfs, perhaps that is related? Dec 7 19:18:38 revo BUG: unable to handle kernel NULL pointer dereference at virtual address 0000000c Dec 7 19:18:38 revo printing

Hi, Check it out-- another update in the space of a week: http://home.pcisys.net/~melanson/codecs/vp3-format.txt v0.4: March 2, 2004 - renamed and expanded section "Initializing The Quantization Matrices" - outlined section "Reconstructing The Frame" - moved Theora Differences Appendix to its own section entitled "Theora Specification" - added Appendix:

Greeting all, I have a bit of a complicated question. I have two ethernet devices, eth1 and eth2. eth1 is where my internet comes from. It is in the form of 202.172.122.208/29. It has another IP range, 202.172.122.72/29. What I want to be able to do is route 202.172.122.72/29 to eth2, so that other machines can use those IPs, any ideas on how to do this, I cannot work out how to do this.

Hello, I''m hiring a XEN virtual machine running Ubuntu at a hosting company. My XEN virtual machine is hosted on a server which has some other VM''s running on it. They all use ubuntu or debian. After a crash sometime last week, the systemclock of my VM is off by an hour (it says 19:49, although it''s 18:49 here now). The other VM''s don''t have

Hello, I''d like to know if there has been any discussion about adding a new feature to write (add) data at an offset, but without overwriting existing data, or re-writing the existing data. Essentially, in-place addition/removal of data to a file at a place other than the end of the file. Some possible use-cases of such a feature would be: (a) Databases (currently hack around this by

Hi, Since commit eecac8a148137ec5c519fc536effce8d6be89ec8 ( HEAD is now at eecac8a... Btrfs: drop remaining LINUX_KERNEL_VERSION checks and compat code ) btrfs kernel module failed to compile on 2.6.27. Older kernel versions not supported anymore? Thanks, -- Gabor MICSKO - http://hup.hu -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a

Hi All, the following patches implement the recursively snapshotting and deleting of a subvolume. To snapshot recursively you must pass the -R switch: # btrfs subvolume create sub1 Create subvolume ''./sub1'' # btrfs subvolume create sub1/sub2 Create subvolume ''sub1/sub2'' # btrfs subvolume snapshot -R sub1 sub1-snap Create a snapshot of

Chris Mason on 10 Feb 13:17: > Excerpts from Ben Gamari''s message of 2011-02-09 21:52:20 -0500: > > Over the last several months there have been many claims regarding > > the release of the rewritten btrfsck. Unfortunately, despite > > numerous claims that it will be released Real Soon Now(c), I have > > yet to see even a repository with preliminary code. Did I

I need everybody to go over this with a fine toothed comb since it is a pretty big change. I think it is right and it seems to come out right, but if it''s not it will mean we screw up O_DIRECT on snapshotted files with preallocated extents, so please, make sure it is correct :). --- Subject: [PATCH] Btrfs: rework can_nocow_odirect We are always doing the file extent lookup in here

Hi list! I recently butchered my filesystem, and I was wondering if anyone knows how to help. Problem: My filesystem is screwed up, and I can''t mount it at all right now. In the logs, the problem begins around 45s. Background: I''m running a 6x4TB RAID5 array using md. I have a few virtual machines using said array, and one of them is a btrfs storage server. I ran into some

Hi. While testing subvolumes in btrfs on 2.6.32.9, I hit a kernel BUG: [ 492.164012] kernel BUG at fs/btrfs/inode.c:4365! The commands to reproduce this bug are as follows: # mount -t btrfs /dev/sda5 /scratch # btrfsctl -S subvol /scratch # date > /scratch/date # ln /scratch/date /scratch/subvol/ ln segfaults, and the bug above is found in dmesg. Subsequent accesses to the subvolume

sorry forgot to follow the protocol, now included RFC in the subject. Hi, Appears that no one is working on the auto-snapshot feature for btrfs, so here I am implementing the same. Below is a draft on the feature list. Any comments / questions / suggestions are welcome, please do let me know. btrfs auto snapshot feature will include: Initially: - configurable timely

If understand the setup correctly based on previous emails, it looks like this: [Internet] <-> [202.172.122.211 (eth1) {Gateway Machine} 202.172.122.74 (eth2)] <-> [202.172.122.75 (eth1) {Other Machine}] So, according to your emails, your external (eth1) interface on the Gateway machine ** needs to be .209 not .211 or .210 ** (as this is where the ISP''s

Currently compression and I assume if encryption is implemented it is turned on or off during mount. There are however many times when a user may want to select which files/directories they want to compress or encrypt. This will also be helpful when implementing btrfs support in grub for example. We can say the disk can be compressed/encrypted except for /boot so compression/encryption

Hello Josef, FYI build failure occured in fs/btrfs/ctree.h. CC fs/btrfs/super.o In file included from fs/btrfs/delayed-inode.h:30:0, from fs/btrfs/super.c:45: fs/btrfs/ctree.h:3235:1: error: expected identifier or ‘(’ before ‘<<’ token make[3]: *** [fs/btrfs/super.o] Error 1 make[2]: *** [fs/btrfs] Error 2 make[1]: *** [fs] Error 2 make[1]: Leaving directory ` make:

Chen Hanxiao (2): New API: btrfs_filesystem_show New API: btrfs_filesystem_show_all daemon/btrfs.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ generator/actions.ml | 21 +++++++++++++++++++++ src/MAX_PROC_NR | 2 +- 3 files changed, 73 insertions(+), 1 deletion(-) -- 2.1.0

I''ve enabled "extended inode refs" and "skinny metadata extent refs" with btrfstune. Then, I''ve tried running "btrfs filesystem balance" - unfortunately it segfaulted. (not sure if I should run balance operation after using btrfstune with -r and -x)? This is with 3.10 kernel with "Btrfs: make backref walking code handle skinny metadata"