Re: cannot remove files: "rm" gives "no space left on device", 3.2.0-24, ubuntu

[rupert THURNER <rupert.thurner@gmail.com>]

On Sun, Jun 17, 2012 at 7:19 AM, Andrei Popa <ierdnah@gmail.com> wrote:
> On Sun, 2012-06-17 at 06:14 +0200, rupert THURNER wrote:
>> >> Will result in anything reported in 'dmesg' output?
>> > [ 6431.514454] device label 388gb-data devid 1 transid 1086 /dev/sda6
>> > [ 6431.514969] btrfs: disabling disk space caching
>> > [ 6431.514977] btrfs: force clearing of disk cache
>> tried the same with kernel versions from
>> http://kernel.ubuntu.com/~kernel-ppa/mainline/:
>> * 3.2.20
>> * 3.4.0
>> with version 3.4.0, i could delete one tiny file, but only one. peter
>> mentioned before to run the rm as root. yes, i did that, with all
>> kernel versions, the error was the same all the time.
>
> Have you tried to delete the files with "echo > file" ? This will empty
> the file without requiring a new metadata allocation.

thanks for the hint! i did with the original kernel, but now i tried
it as root and with the 3.4.0 kernel as well. "no space left on
device". is there a  special kernel version or a special btrfs tool
which allows to remove a file without writing more data?

rupert.