From: Kent Overstreet <kmo-PEzghdH756F8UrSeD/g0lQ@public.gmane.org>
To: Nick Payne <nick.payne-CkBdp7X+a1oIQCUVoCVjmQ@public.gmane.org>
Cc: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: Bcache volume no longer mounts
Date: Mon, 26 Aug 2013 14:55:10 -0700 [thread overview]
Message-ID: <20130826215510.GE2798@kmo-pixel> (raw)
In-Reply-To: <5216ACAB.7090603-CkBdp7X+a1oIQCUVoCVjmQ@public.gmane.org>
On Fri, Aug 23, 2013 at 10:28:27AM +1000, Nick Payne wrote:
> I have /home on a bcache partition - cache device is a 120GB Intel
> 330 SSD on /dev/sdb, backing store device a WD Green 2TB on
> /dev/sdd. Kernel is 3.10.9 installed from the Ubuntu mainline PPA.
> Was working fine up to shutdown last night. On bootup this morning,
> /home would not mount. Running fdisk shows sdb and sdd are
> recognised. Extracts from syslog this morning below. Any suggestions
> on how to recover the partition?
Apologies for the late response (I have been looking at the bug report
and trying to figure out just what's going on, though)
For a more immediate solution: you can force run a backing device when
the cache set isn't available. If you were using it in writeback mode
and there was dirty data in the cache there's going to be data
corruption, but IME ext4 fsck can do wonders so it shouldn't be a total
loss:
echo 1 > /sys/block/sda/sda3/bcache/run (for e.g. sda3)
prev parent reply other threads:[~2013-08-26 21:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-23 0:28 Bcache volume no longer mounts Nick Payne
[not found] ` <5216ACAB.7090603-CkBdp7X+a1oIQCUVoCVjmQ@public.gmane.org>
2013-08-23 5:15 ` Josep Lladonosa
[not found] ` <CAPBO7TZ0+eK3a0-tEXn1iDbk716AzZg3+8K=LmUj8+wDbnOCFg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-08-23 5:30 ` Nick Payne
[not found] ` <5216F37C.5020003-CkBdp7X+a1oIQCUVoCVjmQ@public.gmane.org>
2013-08-24 13:55 ` Josep Lladonosa
2013-08-26 21:55 ` Kent Overstreet [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20130826215510.GE2798@kmo-pixel \
--to=kmo-pezghdh756f8ursed/g0lq@public.gmane.org \
--cc=linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=nick.payne-CkBdp7X+a1oIQCUVoCVjmQ@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox