From: Marc MERLIN <marc@merlins.org>
To: Eric Wheeler <bcache@lists.ewheeler.net>
Cc: Zhu Yanhai <zhu.yanhai@gmail.com>,
Kent Overstreet <kent.overstreet@gmail.com>,
Christoph Nelles <evilazrael@evilazrael.de>,
linux-bcache@vger.kernel.org
Subject: Re: BUG: drivers/md/bcache/writeback.c:237
Date: Thu, 25 Feb 2016 19:19:21 -0800 [thread overview]
Message-ID: <20160226031921.GG29543@merlins.org> (raw)
In-Reply-To: <20160226024633.GF29543@merlins.org>
On Thu, Feb 25, 2016 at 06:46:33PM -0800, Marc MERLIN wrote:
> Given that, I'm happy to run code that spits out diagostics, but probably
> not something that will attempt to write an outdated cache on a filesytem
> that's already ahead.
> Or does bcache understand that the backing device is ahead already and the
> cache should just be discarded?
Yeah, sorry, I did forget to mention that I did a force run on the backing
device so that I could get to its data.
In doing so, I probably invalidated options to try and reply the cache to
see if things would crash, or not, sorry about that.
Now, if I try to make the cache available again, will the code be smart and
not try to reapply a stale cache (never mind that it's probably corrupted in
addition to being old?)
Thanks,
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/
next prev parent reply other threads:[~2016-02-26 3:19 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-15 6:04 echo dev > /sys/fs/bcache/register gives page allocation failure: order:4, mode:0x2040d0 Marc MERLIN
2016-02-15 12:02 ` Johannes Thumshirn
2016-02-15 15:32 ` Marc MERLIN
2016-02-15 15:45 ` Christoph Nelles
2016-02-23 16:32 ` Marc MERLIN
2016-02-23 20:57 ` Marc MERLIN
2016-02-24 20:45 ` BUG: drivers/md/bcache/writeback.c:237 Marc MERLIN
2016-02-25 0:58 ` Eric Wheeler
2016-02-25 6:41 ` Eric Wheeler
2016-02-25 7:36 ` Eric Wheeler
2016-02-25 10:08 ` Zhu Yanhai
2016-02-26 2:38 ` Eric Wheeler
2016-02-26 2:46 ` Marc MERLIN
2016-02-26 3:19 ` Marc MERLIN [this message]
2016-02-26 4:55 ` Eric Wheeler
2016-02-26 16:27 ` Marc MERLIN
2016-02-26 21:17 ` Eric Wheeler
2016-03-03 4:17 ` Eric Wheeler
2016-03-03 4:25 ` Marc MERLIN
2016-02-25 10:18 ` Zhu Yanhai
2016-02-25 15:20 ` Marc MERLIN
2016-02-25 23:44 ` Eric Wheeler
2016-02-26 0:17 ` Marc MERLIN
2016-02-15 12:11 ` echo dev > /sys/fs/bcache/register gives page allocation failure: order:4, mode:0x2040d0 Kent Overstreet
2016-02-24 6:53 ` Eric Wheeler
2016-02-24 16:37 ` Disabling bcache from boot when it crashes? Marc MERLIN
2016-02-24 19:10 ` Eric Wheeler
2016-02-25 5:48 ` Marc MERLIN
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