From: Kent Overstreet <kmo-PEzghdH756F8UrSeD/g0lQ@public.gmane.org>
To: Juha Aatrokoski <jha-6fQLAAUwtFMxHbG02/KK1g@public.gmane.org>
Cc: Heiko Wundram <modelnine-EqIAFqbRPK3NLxjTenLetw@public.gmane.org>,
linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: bcache hangs on writes, recovers after disabling discard on cache device
Date: Tue, 16 Jul 2013 14:05:28 -0700 [thread overview]
Message-ID: <20130716210527.GC27000@kmo-pixel> (raw)
In-Reply-To: <alpine.DEB.2.02.1307162111590.3617-pfGh9vBu50j/PtFMR13I2A@public.gmane.org>
On Tue, Jul 16, 2013 at 09:14:09PM +0300, Juha Aatrokoski wrote:
> On Fri, 12 Jul 2013, Juha Aatrokoski wrote:
> >>Can you give this patch a try? It's on top of the current
> >>bcache-for-3.11 branch
> >
> >OK, now running the same kernel with this patch applied and
> >discard enabled. However, it has previously taken my system 2-4
> >days to trigger this bug, so I'd say at least two weeks before I
> >can say the patch (may have) fixed the issue.
>
> No such luck, hit the bug after four days of uptime. Disabling
> discard fixed the problem so at least it's not any worse than
> before.
Argh, damn peculiar bug... and the fact that it takes so long to trigger
is frustrating. I'm honestly at a loss at this point as to what that IO
actually is.
I should've thought of this sooner, but if there's any way you could
capture some blktrace output while it's doing its spinning thing that
could be very helpful.
I'll think about it some more...
next prev parent reply other threads:[~2013-07-16 21:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-24 18:36 bcache hangs on writes, recovers after disabling discard on cache device Heiko Wundram
[not found] ` <51C891C9.4060809-EqIAFqbRPK3NLxjTenLetw@public.gmane.org>
2013-07-11 14:58 ` Juha Aatrokoski
[not found] ` <alpine.DEB.2.02.1307111748130.26927-pfGh9vBu50j/PtFMR13I2A@public.gmane.org>
2013-07-12 1:15 ` Kent Overstreet
2013-07-12 16:13 ` Juha Aatrokoski
[not found] ` <alpine.DEB.2.02.1307121902540.10602-pfGh9vBu50j/PtFMR13I2A@public.gmane.org>
2013-07-16 18:14 ` Juha Aatrokoski
[not found] ` <alpine.DEB.2.02.1307162111590.3617-pfGh9vBu50j/PtFMR13I2A@public.gmane.org>
2013-07-16 21:05 ` Kent Overstreet [this message]
2013-07-18 12:05 ` Juha Aatrokoski
[not found] ` <alpine.DEB.2.02.1307181458180.18577-pfGh9vBu50j/PtFMR13I2A@public.gmane.org>
2013-07-18 17:53 ` Kent Overstreet
2013-07-18 21:02 ` Juha Aatrokoski
2013-07-26 18:44 ` Juha Aatrokoski
[not found] ` <alpine.DEB.2.02.1307262143200.22718-pfGh9vBu50j/PtFMR13I2A@public.gmane.org>
2013-07-26 20:13 ` Kent Overstreet
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