Fwd: Bug#715019: linux-image-3.10-rc7-amd64: Bcache (with cache on LVM?) stops system from shutting down

Fwd: Bug#715019: linux-image-3.10-rc7-amd64: Bcache (with cache on LVM?) stops system from shutting down

[Josep Lladonosa]

---------- Forwarded message ----------
From: Josep Lladonosa <jlladono-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date: 14 July 2013 13:23
Subject: Re: Bug#715019: linux-image-3.10-rc7-amd64: Bcache (with cache on
LVM?) stops system from shutting down
To: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org


Hello,

I have added new info to this bug. Forward it to this list:

To: 715019-61a8vm9lEZVf4u+23C9RwQ@public.gmane.org
Subject: Bug#715019: linux-image-3.10-rc7-amd64: Bcache (with cache on LVM?)
stops system from shutting down
From: Josep Lladonosa <jlladono-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date: Sun, 14 Jul 2013 00:55:00 +0200
Message-id:
<CAPBO7TbcPWAq2rePLsxLapb8y75gNWmUe-RB6ONcR9cNd=cEag-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
Reply-to: Josep Lladonosa <jlladono-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, 715019-61a8vm9lEZVf4u+23C9RwQ@public.gmane.org

________________________________
Hello,

I would like to comment that the same behaviour is happening to my system.


Root filesystem is ext3 on /dev/bcache0, which works with /dev/sda3 as the
backing partition and /dev/sdb as the cache disk (it is an msata version).
(System was on LVM before, but changed it to ext3 to keep it easier for the
bcache).

bcache is not shutting down well, and the system cannot shutdown,reboot,
suspend, hibernate.
When shutting down, messages are like:

...
mei_me 000:00:16:0:stop
exception Emask 0x0 SACT 0x3 SErr 0x0 action 0x6 frozen
failed command: WRITE FPDMA QUEUED
ata3.00: cmd 61/08:00:60:6d:0e/00:00:00:00:00/40 tag 0 ncq 4096 out
res 40:00:f4:00:00:00/00:00:00:00:00/40 Emask 0x4 (timeout)
ata 3.00: status: {DRDY}
ata3: COMRESET failed (errno=-16)
end_request: I/O error, dev sdb, sector xxxxxx
bcache: bch_count_io_error() sdb:
IO error on writing btree, recovering
I/O error, dev sdb, sector xxxxxx
...

And keeps pausing and showing messages...

I wish that this info helps to find a solution...

--
--
Salutacions...Josep
--

(by the way, kernel now is 3.10.1 and the behaviour is the same).



--
--
Salutacions...Josep
--

Re: Fwd: Bug#715019: linux-image-3.10-rc7-amd64: Bcache (with cache on LVM?) stops system from shutting down

[Kent Overstreet]

On Sun, Jul 14, 2013 at 01:24:24PM +0200, Josep Lladonosa wrote:
> ---------- Forwarded message ----------
> From: Josep Lladonosa <jlladono-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Date: 14 July 2013 13:23
> Subject: Re: Bug#715019: linux-image-3.10-rc7-amd64: Bcache (with cache on
> LVM?) stops system from shutting down
> To: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> 
> 
> Hello,
> 
> I have added new info to this bug. Forward it to this list:
> 
> To: 715019-61a8vm9lEZVf4u+23C9RwQ@public.gmane.org
> Subject: Bug#715019: linux-image-3.10-rc7-amd64: Bcache (with cache on LVM?)
> stops system from shutting down
> From: Josep Lladonosa <jlladono-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Date: Sun, 14 Jul 2013 00:55:00 +0200
> Message-id:
> <CAPBO7TbcPWAq2rePLsxLapb8y75gNWmUe-RB6ONcR9cNd=cEag-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
> Reply-to: Josep Lladonosa <jlladono-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, 715019-61a8vm9lEZVf4u+23C9RwQ@public.gmane.org
> 
> ________________________________
> Hello,
> 
> I would like to comment that the same behaviour is happening to my system.
> 
> 
> Root filesystem is ext3 on /dev/bcache0, which works with /dev/sda3 as the
> backing partition and /dev/sdb as the cache disk (it is an msata version).
> (System was on LVM before, but changed it to ext3 to keep it easier for the
> bcache).
> 
> bcache is not shutting down well, and the system cannot shutdown,reboot,
> suspend, hibernate.
> When shutting down, messages are like:
> 
> ...
> mei_me 000:00:16:0:stop
> exception Emask 0x0 SACT 0x3 SErr 0x0 action 0x6 frozen
> failed command: WRITE FPDMA QUEUED
> ata3.00: cmd 61/08:00:60:6d:0e/00:00:00:00:00/40 tag 0 ncq 4096 out
> res 40:00:f4:00:00:00/00:00:00:00:00/40 Emask 0x4 (timeout)
> ata 3.00: status: {DRDY}
> ata3: COMRESET failed (errno=-16)
> end_request: I/O error, dev sdb, sector xxxxxx
> bcache: bch_count_io_error() sdb:
> IO error on writing btree, recovering
> I/O error, dev sdb, sector xxxxxx
> ...
> 
> And keeps pausing and showing messages...
> 
> I wish that this info helps to find a solution...

Hrm, wonder what's causing the IO errors...

I did fix the reboot notifier the other day, can you try either my
bcache-for-3.10 or bcache-for-3.11 branches? That should fix shutdown
and reboot.

Suspend and hibernate should be fixed in the for-3.11 branch, but I
think I'll need to backport a freezer fix for it to work in 3.10...

Re: Fwd: Bug#715019: linux-image-3.10-rc7-amd64: Bcache (with cache on LVM?) stops system from shutting down

[Campbell Steven]

>>
>> Hello,
>>
>> I have added new info to this bug. Forward it to this list:
>>
>> To: 715019-61a8vm9lEZVf4u+23C9RwQ@public.gmane.org
>> Subject: Bug#715019: linux-image-3.10-rc7-amd64: Bcache (with cache on LVM?)
>> stops system from shutting down
>> From: Josep Lladonosa <jlladono-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>> Date: Sun, 14 Jul 2013 00:55:00 +0200
>> Message-id:
>> <CAPBO7TbcPWAq2rePLsxLapb8y75gNWmUe-RB6ONcR9cNd=cEag-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
>> Reply-to: Josep Lladonosa <jlladono-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, 715019-61a8vm9lEZVf4u+23C9RwQ@public.gmane.org
>>
>> ________________________________
>> Hello,
>>
>> I would like to comment that the same behaviour is happening to my system.
>>
>>
>> Root filesystem is ext3 on /dev/bcache0, which works with /dev/sda3 as the
>> backing partition and /dev/sdb as the cache disk (it is an msata version).
>> (System was on LVM before, but changed it to ext3 to keep it easier for the
>> bcache).
>>
>> bcache is not shutting down well, and the system cannot shutdown,reboot,
>> suspend, hibernate.
>> When shutting down, messages are like:
>>
>> ...
>> mei_me 000:00:16:0:stop
>> exception Emask 0x0 SACT 0x3 SErr 0x0 action 0x6 frozen
>> failed command: WRITE FPDMA QUEUED
>> ata3.00: cmd 61/08:00:60:6d:0e/00:00:00:00:00/40 tag 0 ncq 4096 out
>> res 40:00:f4:00:00:00/00:00:00:00:00/40 Emask 0x4 (timeout)
>> ata 3.00: status: {DRDY}
>> ata3: COMRESET failed (errno=-16)
>> end_request: I/O error, dev sdb, sector xxxxxx
>> bcache: bch_count_io_error() sdb:
>> IO error on writing btree, recovering
>> I/O error, dev sdb, sector xxxxxx
>> ...
>>
>> And keeps pausing and showing messages...
>>
>> I wish that this info helps to find a solution...
>
> Hrm, wonder what's causing the IO errors...
>
> I did fix the reboot notifier the other day, can you try either my
> bcache-for-3.10 or bcache-for-3.11 branches? That should fix shutdown
> and reboot.
>
> Suspend and hibernate should be fixed in the for-3.11 branch, but I
> think I'll need to backport a freezer fix for it to work in 3.10...
> --

I've been following this and testing all changes related to it and
still see the same as I reported earlier (and same errors). The
screenshots off the console show the same errors on the latest from
the bcache-for-3.11 branch when shutting down.

https://www.btg.co.nz/Public/2.jpg
https://www.btg.co.nz/Public/3.jpg
https://www.btg.co.nz/Public/4.jpg
https://www.btg.co.nz/Public/6.jpg

http://thread.gmane.org/gmane.linux.kernel.bcache.devel/1715

Kent, contact me off list if it is of any help for me to give you
access to a box where this is an issue. Or if there is anything else I
should try configuration wise.

Thanks

Campbell