Thread (17 messages) 17 messages, 5 authors, 2011-01-29

Re: Kernel error during btrfs balance

From: Erik Logtenberg <hidden>
Date: 2011-01-17 14:37:51

Hi,

Additionally, I cannot mount the filesystem anymore. mount gives no
error messages but hangs in state D.
dmesg shows:
[  422.323116] btrfs: use compression
Which is a good thing, but it doesn't do anything otherwise.

Thanks,

Erik.


On 01/17/2011 03:31 PM, Erik Logtenberg wrote:
Hi,

Please find attached the error log, for future reference.

Forgot to mention:
I could still use the system after this error, so it was not a complete
fatal error in that regard. All active processes (mostly rsync) were
hanging in state D though, so I couldn't kill them anymore. Also the FS
was not umountable. So I still had to reboot.

Thanks,

Erik.


On 01/17/2011 03:14 PM, Erik Logtenberg wrote:
quoted
Hi,

btrfs balance results in:

http://pastebin.com/v5j0809M

My system: fully up-to-date Fedora 14 with rawhide kernel to make btrfs
balance do useful stuff to my free space:

kernel-2.6.37-2.fc15.x86_64
btrfs-progs-0.19-12.fc14.x86_64

Filesystem had 0 bytes free, should be 45G, so on darklings advice I ran
btrfs balance on the fs, while doing heavy I/O (re-running 5 backup jobs
that had failed due to ENOSP).
Up until the crash, btrfs balance did retrieve a couple of Gigs free
space though, so that part of the plan worked just fine.

Thanks,

Erik.
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