2.6.39-rc1: kernel BUG at fs/btrfs/extent-tree.c:5479!

2011-04-02 Thread Sergei Trofimovich
The partition is a physical ~5GB --mixed lzo compressed partition. The kernel 2.6.39-rc1 + reverted commit c59021f846881a957ac5afe456d0f59d6a517b61. (see http://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg09083.html) This time I've really filled whole partition and kernel OOpsed. Note,

Re: 2.6.39-rc1: kernel BUG at fs/btrfs/extent-tree.c:5479!

2011-04-02 Thread Sergei Trofimovich
On Sat, 02 Apr 2011 17:37:58 +0800 liubo liubo2...@cn.fujitsu.com wrote: On 04/02/2011 05:19 PM, Sergei Trofimovich wrote: The partition is a physical ~5GB --mixed lzo compressed partition. The kernel 2.6.39-rc1 + reverted commit c59021f846881a957ac5afe456d0f59d6a517b61. (see

Re: 2.6.39-rc1: kernel BUG at fs/btrfs/extent-tree.c:5479!

2011-04-02 Thread liubo
On 04/02/2011 06:41 PM, Sergei Trofimovich wrote: On Sat, 02 Apr 2011 17:37:58 +0800 liubo liubo2...@cn.fujitsu.com wrote: On 04/02/2011 05:19 PM, Sergei Trofimovich wrote: The partition is a physical ~5GB --mixed lzo compressed partition. The kernel 2.6.39-rc1 + reverted commit

Re: [PATCH 0/2] btrfs: allow cross-subvolume BTRFS_IOC_CLONE

2011-04-02 Thread Ken Drummond
On Fri, 2011-04-01 at 09:34 -0400, Christoph Hellwig wrote: On Thu, Mar 31, 2011 at 08:02:22AM -0400, Chris Mason wrote: Excerpts from Christoph Hellwig's message of 2011-03-31 02:36:36 -0400: On Thu, Mar 31, 2011 at 12:00:11AM -0400, Larry D'Anna wrote: This is a simple patch to allow

minor ID for btrfs-control

2011-04-02 Thread Helmut Hullen
Hallo, if I've understood some mails in this list correct, then btrfs needs a character device btrfs-control with the ID 10:55 When I look for this device in /sys/class/misc/btrfs-control/dev I see 10:234 And when I run the command mkfs.btrfs -d raid0 -m raid1 /dev/sda1

Re: [PATCH 0/2] btrfs: allow cross-subvolume BTRFS_IOC_CLONE

2011-04-02 Thread Larry D'Anna
* Ken Drummond (bt...@kendrummond.com) [110402 11:51]: I don't really understand the details here, but doesn't the creation of a snapshot already lead to data extents being shared between sub-volumes? From a simple user perspective this sounds like a very useful capability. I was surprised

Re: minor ID for btrfs-control

2011-04-02 Thread Tomasz Torcz
On Sat, Apr 02, 2011 at 06:45:00PM +0200, Helmut Hullen wrote: if I've understood some mails in this list correct, then btrfs needs a character device btrfs-control with the ID 10:55 When I look for this device in /sys/class/misc/btrfs-control/dev I see 10:234 Kernel

Re: minor ID for btrfs-control

2011-04-02 Thread Helmut Hullen
Hallo, Tomasz, Du meintest am 02.04.11: No udev is wrong. Sorry - no. On the machines I use I don't need udev (they are a kind of server, not end user workstations with often changing hardware). And I could abstain (? - please excuse my gerlish) from btrfs, but not from fixed device

Re: [PATCH 0/2] btrfs: allow cross-subvolume BTRFS_IOC_CLONE

2011-04-02 Thread Jérôme Poulin
I am very happy to see this patch. It was one of the first thing I tried after making a subvolume, cp --reflink, and it failed. I'll have to try this out. Jérôme Poulin On 2011-04-02, at 12:56, Larry D'Anna la...@elder-gods.org wrote: * Ken Drummond (bt...@kendrummond.com) [110402 11:51]: I

Re: v2.6.38-6555-ga44f99c: null pointer dereference on -ENOSPC

2011-04-02 Thread Sergei Trofimovich
On Tue, 29 Mar 2011 10:32:24 +0300 Sergei Trofimovich sly...@gmail.com wrote: The partition is a physical ~5GB --mixed lzo compressed partition. I run large compiles there. During one of those kernel OOpsed (It seems to be reproducible). At the time of OOps and after reboot 'du -hs' reports

Re: minor ID for btrfs-control

2011-04-02 Thread Peter Stuge
Goffredo Baroncelli wrote: If you don't want to use udev you have two choices: - use devtmpfs - create manually a device. But nobody guarantee that the minor/major will not change. - use a udev replacement intended for embedded systems, such as mdev //Peter -- To unsubscribe from this

Re: minor ID for btrfs-control

2011-04-02 Thread Helmut Hullen
Hallo, Goffredo, Du meintest am 03.04.11: if I've understood some mails in this list correct, then btrfs needs a character device btrfs-control with the ID 10:55 When I look for this device in /sys/class/misc/btrfs-control/dev I see 10:234 As wrote by Tomasz the minor number

Re: minor ID for btrfs-control

2011-04-02 Thread Helmut Hullen
Hallo, Peter, Du meintest am 03.04.11: If you don't want to use udev you have two choices: - use devtmpfs - create manually a device. But nobody guarantee that the minor/major will not change. - use a udev replacement intended for embedded systems, such as mdev