Will do.
Thank you.


On Wed, Feb 17, 2016 at 3:01 PM, Filipe Manana [off-list ref] wrote:

On Wed, Feb 17, 2016 at 1:02 PM, Pavol Cupka [off-list ref] wrote:

quoted

Hi all,

when trying to btrfs send a snaphost I get this in dmesg:
[8614395.539466] BTRFS error (device sda1): did not find backref in
send_root. inode=673755, offset=131072, disk_byte=25730310144 found
extent=25730310144

scrub reveals no errors
scrub status for bb8094e8-a7b1-4c2d-854e-77a9921e6f7e
        scrub started at Wed Feb 17 08:14:32 2016 and finished after 00:15:58
        total bytes scrubbed: 67.49GiB with 0 errors

Is there something else that I might try to get this work?

Just upgrade to a 4.3 or 4.4 kernel, or build a kernel with the patch below.
The fix for this landed in 4.3:

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d6589101b67a55107652050dfbf414403a93e351

quoted

uname -a
Linux 4.1.7-hardened-r1 #4 SMP Mon Nov 9 20:02:04 CET 2015 x86_64
Intel(R) Atom(TM) CPU N2800 @ 1.86GHz GenuineIntel GNU/Linux

btrfs --version
btrfs-progs v4.3.1

Thanks Pavol
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--
Filipe David Manana,

"Reasonable men adapt themselves to the world.
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 That's why all progress depends on unreasonable men."