No space left, although 16G are there

No space left, although 16G are there

[Ahmed Kamal]

Hi folks,
I am running a Fedora-12 system (2.6.31.5-127.fc12.x86_64) with a
btrfs root fs. While running a "yum upgrade" with around 200MB of
updates, the system became significantly slow (3 seconds for Chrome to
scroll down after hitting space bar!) and I noticed in
/var/log/messages

Nov 26 22:12:08 localhost kernel: no space left, need 61440, 18579456
delalloc bytes, 10387451904 bytes_used, 0 bytes_reserved, 0
bytes_pinned, 0 bytes_read only, 0 may use 10406068224 total

Although "df -h" shows 16G of free space for the root fs. I thought
I'd report this. Let me know if you want more diagnostics.

Regards

Re: No space left, although 16G are there

[Ahmed Kamal]

The system is insisting I am out of disk space!

[root@matrix tmp]# df -h /
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vgkimo-lvF12
                       26G   10G   16G  39% /

[root@matrix tmp]# dd if=/dev/zero of=bigfile bs=1M count=500
dd: writing `bigfile': No space left on device
61+0 records in
60+0 records out
62914560 bytes (63 MB) copied, 0.40297 s, 156 MB/s
You have mail in /var/spool/mail/root




On Thu, Nov 26, 2009 at 11:41 PM, Ahmed Kamal
<email.ahmedkamal@googlemail.com> wrote:
> Hi folks,
> I am running a Fedora-12 system (2.6.31.5-127.fc12.x86_64) with a
> btrfs root fs. While running a "yum upgrade" with around 200MB of
> updates, the system became significantly slow (3 seconds for Chrome to
> scroll down after hitting space bar!) and I noticed in
> /var/log/messages
>
> Nov 26 22:12:08 localhost kernel: no space left, need 61440, 18579456
> delalloc bytes, 10387451904 bytes_used, 0 bytes_reserved, 0
> bytes_pinned, 0 bytes_read only, 0 may use 10406068224 total
>
> Although "df -h" shows 16G of free space for the root fs. I thought
> I'd report this. Let me know if you want more diagnostics.
>
> Regards
>

Re: No space left, although 16G are there

[Ahmed Kamal]

More info

[root@matrix ~]# btrfs-show
failed to read /dev/sr0
Label: none  uuid: 06b0d069-b1cb-48c4-b26f-c5088a2360d2
        Total devices 1 FS bytes used 9.99GB
        devid    1 size 25.72GB used 25.72GB path /dev/dm-1

Btrfs Btrfs v0.19


On Thu, Nov 26, 2009 at 11:47 PM, Ahmed Kamal
<email.ahmedkamal@googlemail.com> wrote:
> The system is insisting I am out of disk space!
>
> [root@matrix tmp]# df -h /
> Filesystem =A0 =A0 =A0 =A0 =A0 =A0Size =A0Used Avail Use% Mounted on
> /dev/mapper/vgkimo-lvF12
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 26G =A0 10G =A0 16G =A039=
% /
>
> [root@matrix tmp]# dd if=3D/dev/zero of=3Dbigfile bs=3D1M count=3D500
> dd: writing `bigfile': No space left on device
> 61+0 records in
> 60+0 records out
> 62914560 bytes (63 MB) copied, 0.40297 s, 156 MB/s
> You have mail in /var/spool/mail/root
>
>
>
>
> On Thu, Nov 26, 2009 at 11:41 PM, Ahmed Kamal
> <email.ahmedkamal@googlemail.com> wrote:
>> Hi folks,
>> I am running a Fedora-12 system (2.6.31.5-127.fc12.x86_64) with a
>> btrfs root fs. While running a "yum upgrade" with around 200MB of
>> updates, the system became significantly slow (3 seconds for Chrome =
to
>> scroll down after hitting space bar!) and I noticed in
>> /var/log/messages
>>
>> Nov 26 22:12:08 localhost kernel: no space left, need 61440, 1857945=
6
>> delalloc bytes, 10387451904 bytes_used, 0 bytes_reserved, 0
>> bytes_pinned, 0 bytes_read only, 0 may use 10406068224 total
>>
>> Although "df -h" shows 16G of free space for the root fs. I thought
>> I'd report this. Let me know if you want more diagnostics.
>>
>> Regards
>>
>
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Re: No space left, although 16G are there

[Moesasji]

It seems the same issue as I ran into some time ago. Check the following thread 
on why it happens and how to get out of it. 

http://thread.gmane.org/gmane.comp.file-systems.btrfs/3996/focus=4003