-28 means ENOSPC. It gets printed when the requested space is larger
than the available space. So 25% full makes no difference. All it
takes is to request 1 byte more than the available space. I am more
puzzled by the fact that the error is not showing up in userspace
(via the app).
Having said that, we should not be printing -28 errors at all. It
needs to be handled by the userspace. We recently pushed a patch to
the mainline for the same.
If you are very curious and want to get to the bottom of this, do:
# debugfs.ocfs2 -l INODE allow
... do activity that throws the error...
# debugfs.ocfs2 -l INODE off
Scan the messages file for the -28 error. Above that you should
see a message saying "clusters_to_add = ...". That will tell us
how much the user wanted to extend the file. The number in paren
is the pid. Use ps to lookup the process.
Caution: This method will work best if you know the exact steps to
generate the -28 error. If not, then you may fill up the messages
file even more.
BTW, 2.6.19 is very old. Upgrade to 2.6.21 atleast.
Luke Schierer wrote:
On Wed, Nov 28, 2007 at 02:13:39PM -0800, Sunil Mushran wrote:
Is the only issue here that the error is being printed, or are you also
experiencing "out of space" errors?
these are the only errors I am seeing. As best I can tell, the system
is working just fine, and I'm certainly able to create files on it.
What's the kernel/ocfs2 version. That should tell us more.
This is a debian lenny system with a 2.6.19.2 kernel, with ocfs2-tools
1.2.4-1.
thanks,
luke
Luke Schierer wrote:
In my logs, I am seeing lines such as
Nov 28 15:17:53 mail kernel: (3793,0):ocfs2_extend_file:754 ERROR:
status = -28
happening periodically, the number varies from hour to hour. They
happen only one one of 4 hosts (thre of which, including this one are
xen guests) mounting the volume.
Googling on the error seems to indicate that this error happens when
the partition is full, but in this case the partition is only about
25% full.
Any help figuring out what is going on here and how I can fix it would
be greatly appreciated.
thanks!
luke
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