From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ahmed Kamal <email.ahmedkamal@googlemail.com>
Subject: No space left, although 16G are there
Date: Thu, 26 Nov 2009 23:41:09 +0200
Message-ID: <3da3b5b40911261341x67c8b696v36f7ed2f4caefe63@mail.gmail.com>
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To: linux-btrfs <linux-btrfs@vger.kernel.org>
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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