linux-kernel - Re: Filesystem corruption MD (imsm) Raid0 via 2 SSD's + discard

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Message-ID: <20150521013213.536deed0@natsu>
Date:	Thu, 21 May 2015 01:32:13 +0500
From:	Roman Mamedov <rm@...anrm.net>
To:	Holger Kiehl <Holger.Kiehl@....de>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-raid <linux-raid@...r.kernel.org>
Subject: Re: Filesystem corruption MD (imsm) Raid0 via 2 SSD's + discard

On Wed, 20 May 2015 20:12:31 +0000 (UTC)
Holger Kiehl <Holger.Kiehl@....de> wrote:

> The kernel I was running when I discovered the
> problem was 4.0.2 from kernel.org. However, after reinstalling from DVD
> I updated to Fedora's lattest kernel, which was 3.19.? (I do not remember
> the last numbers). So that kernel seems also effected, but I assume it
> contains many 'fixes' from 4.0.x. As filesystem I use ext4, distribution
> is Fedora 21 and hardware is: Xeon E3-1275, 16GB ECC Ram.
> 
> My system seems to be now running stable for some days with kernel.org
> kernel 4.0.3 and with discard DISABLED. But I am still unsure what could
> be the real cause.

It is a bug in the 4.0.2 kernel, fixed in 4.0.3.

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=785672
https://bbs.archlinux.org/viewtopic.php?id=197400
https://kernel.googlesource.com/pub/scm/linux/kernel/git/stable/linux-stable/+/d2dc317d564a46dfc683978a2e5a4f91434e9711


-- 
With respect,
Roman

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