Re: [bcachefs] problem with `bcache fsck`

[Marcin <marcin@mejor.pl>]

W dniu 2017-03-17 00:57, Kent Overstreet napisał(a):
> On Thu, Mar 16, 2017 at 11:07:20PM +0100, Marcin wrote:
>> If I add bcachefs to fstab openrc expects userland fsck to works this 
>> is why
>> I tried it to use.
> 
> Fsck should be fixed now
> 
>> There is no new commit, I'm at
>> commit 7274700edcf99ab67d4f72eca4f07d0220b9abae
>> Author: Kent Overstreet <kent.overstreet@gmail.com>
>> Date:   Tue Mar 14 21:07:39 2017 -0800
>> 
>>     bcache: fix device hot add
> 
> Ok, you're good then (at least re: the buffered reads bug)
> 
>> I suspect that problem is due to using  --metadata_replicas=2. If you 
>> have a
>> some spare time please try fileystsem formated with this parameters:
>> # bcache format --compression_type=gzip --metadata_replicas=2
>> --data_checksum_type=crc64 --metadata_checksum_type=crc64 --tier=2 
>> /dev/sde1
>> --tier=3 /dev/sdd1
> 
> Alright, will do

I configured logging using netconsole, I formated fs using favorite 
killer-combo[1], when I copied ~480000 rather small files the host 
rebooted. I only cought this:

Mar 17 23:17:00 [ 1247.409119] kernel BUG at 
drivers/md/bcache/buckets.c:505!
Mar 17 23:17:00 [ 1247.409149] invalid opcode: 0000 [#1] SMP
Mar 17 23:17:00 [ 1247.409176] Modules linked in:
Mar 17 23:17:00 netconsole
Mar 17 23:17:00 tun
[snip list of modules]

Marcin

[1] bcache format --compression_type=gzip --metadata_replicas=2 
--data_checksum_type=crc64 --metadata_checksum_type=crc64 --tier=2 
/dev/sde1 --tier=3 /dev/sdd1