Re: btrfs kernel oops on mount

[moparisthebest <admin@moparisthebest.com>]

On 09/09/2016 03:28 PM, Chris Murphy wrote:
> Sounds like with enospc devs want to see a couple things beyond what I
> asked for:
> 
> enospc_debug
> grep -IR . /sys/fs/btrfs/UUID/allocation/
> 
> That's kinda hard to do right now if it's not mounting though...

I managed to get more output from arch/4.7.2 using netconsole, I did end
up with duplicate lines somehow though which uniq fixed, but some of the
crash is mixed together on the same line, I didn't mess with that for
fear of taking out something important:

https://www.moparisthebest.com/btrfs/archnetconsole.txt

I was also able to mount it ro so I ran the grep you asked for:

https://www.moparisthebest.com/btrfs/enospcdebug.txt

I tried mounting with mount -o rw,skip_balance and it still locked up,
so for now it's read-only...

Let me know what else I can provide or try.  I haven't been able to boot
with a 4.7 kernel on my ubuntu install so I figure 4.8 will be the same,
I guess I'll need to permanently install something like arch to a flash
drive and try 4.8 from there.

Thanks!