Re: Reproducible corruption issue in stable, with possible patch unmerged?

[Chris Mason <clm@fb.com>]

On Sat, Nov 07, 2015 at 04:36:56PM +0100, Diego Call. wrote:
> [repost, since the previous mail was rejected by vger.kernel.org]
> 
> I got these messages in my dmesg:
> 
> [ 2587.841376] BTRFS error (device sdc1): partial page write in btrfs
> with offset 0 and length 8392704
> [ 2588.814182] BTRFS critical (device sdc1): bad ordered accounting
> left 0 size 4096
> 
> With no other errors before. After rebooting I got btrfs
> errors and widespreading filesystem corruption (pool
> of three disks created with -d raid0 and -m raid1)
> 
> I reinstalled the system (current arch linux installer, which
> runs 4.2) and started to restore the backup. Surprisingly,
> I got exactly the same errors again. I reinstalled again,
> and after rebooting to the new system, running 4.2.5,
> I tried to restore the backup and got the same messages
> and corruption again. Then I tried reinstalling with
> the 4.1.12 LTS version, and it all worked fine.
> 
> Now, the interesting thing is that, after googling this error, I didn't
> found any interesting references except a patch sent to this
> mailing list which seems to fix a problem that causes the same
> error output. The patch doesn't seem to have been merged:
> 

Good catch.  Can you describe your configuration?

-chris