btrfs plans for 15.10/16.04?

Bryan Quigley bryan.quigley at
Wed Apr 22 15:10:04 UTC 2015

I haven't investigated more than reading Chris Mason's post in the thread:

"On our end, many of these Btrfs warts are getting solved.  The 3.19
merge window fixes some very hard to find corruption problems that
we've been chasing down, and Josef Bacik has developed a slick
power-fail testing target that makes it much easier to prevent similar
bugs in the future.  3.19 will also fix rare corruptions with block
group removal, making both balance and the new auto-blockgroup cleanup
feature much more reliable.

We've hit a few performance problems deploying Btrfs here at Facebook,
and fixes for these are making it into upstream kernels.  We've also
now caught two storage cards returning either stale or corrupt data,
and the Btrfs crcs saved us from replicating the bad copies out across
the cluster."

On Wed, Apr 22, 2015 at 10:54 AM, Robie Basak <robie.basak at> wrote:
> On Wed, Apr 22, 2015 at 10:47:32AM -0400, Bryan Quigley wrote:
>> >Is it really ready yet? For example, CoreOS reported having issues and
>> >switched away in December/January:
>> >!topic/coreos-dev/NDEOXchAbuU
>> That's what the previous UDS sessions discussed.  AFAICT from that
>> list the btrfs devs have fixed the issues identified.
> The discussion dates from December 2014, which is after our most recent
> UDS. It seems to suggest the issues still existed at the time. Are you
> saying that the issues are fixed and they hadn't noticed or didn't
> consider this relevant to their discussion, or that the issues have been
> fixed upstream this year?
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