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Message-ID: <20150521032448.GA14632@x>
Date: Wed, 20 May 2015 20:24:48 -0700
From: Josh Triplett <josh@...htriplett.org>
To: Henrique de Moraes Holschuh <hmh@....eng.br>
Cc: Theodore Ts'o <tytso@....edu>, Lukas Czerner <lczerner@...hat.com>,
linux-kernel@...r.kernel.org
Subject: Re: Nature of ext4 corruption fixed by recent patch?
On Wed, May 20, 2015 at 10:23:22PM -0300, Henrique de Moraes Holschuh wrote:
> On Wed, 20 May 2015, josh@...htriplett.org wrote:
> > md-based RAID0, on top of a pair of SSDs.
>
> Might this be it? It was mentioned in another, more recent thread about
> data loss involving md-raid0 and ssds...
>
> https://bugzilla.kernel.org/show_bug.cgi?id=98501
That looks extremely likely, particularly since I do have the "discard"
option enabled. And discarding the wrong blocks seems entirely
consistent with the symptoms I've observed.
Thanks! I'll disable discard as a short-term workaround until that
change goes into the Debian kernel.
- Josh Triplett
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