On 11/02/14 18:11, David Sterba wrote:
On Mon, Feb 10, 2014 at 01:59:07PM +0000, Frank Kingswood wrote:
On 10/02/14 13:47, Hugo Mills wrote:
On Mon, Feb 10, 2014 at 01:28:38PM +0000, Frank Kingswood wrote:
I'm attempting to back up a btrfs subvolume
[...]
Doing so runs out of file descriptors on the sending machine (having
over 100k files open) and eventually runs out of memory and gets
killed by the OOM killer.
This sounds like a known bug, and I think it was fixed in 3.13.
What kernel version are you using?
This is on 3.12.5.
The fix went into 3.12.6 stable
Just missed getting the fix then.
I can build and install 3.13.2 and test it again.
And it's in 3.13.x as well.
I built and booted into 3.13.2 and the btrfs send seems to be working -
it's rate limited to 10MB/s and so far has managed to send about 40% of
the snapshot.
Memory and CPU usage are low on both the sending and receiving end.
Thanks for your help,
Frank
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