[arch-general] RAID-0 kernel bug

[David C. Rankin]

On 05/23/2015 02:55 AM, Florian Pritz wrote:
> On 23.05.2015 03:12, Francis Gerund wrote:
>> Am I correct to assume that this would ONLY affect systems that include a
>> RAID-0 filesystem, and that it would not affect other ext4 systems using
>> SSDs with "discard" in /etc/fstab?
>
> It affects all file systems when used with discard on a raid0 device. It
> is not a bug specific to ext4[1]. If you do not use raid0 with discard
> you are fine.
>
> [1] https://bugzilla.kernel.org/show_bug.cgi?id=98501#c14
>

UUgh, dumb question, but... I have not used/configured this "discard", but I do 
have 6 Raid0 arrays spinning on my Arch server. Does this corruption potentially 
apply to me? Is this "discard" something that would be enabled by default? I 
have never heard of it, so that is the only thing to that concerns me. From the 
kernel thread, the fix is out on 5/22. What do I do to test whether I suffered 
corruption?

-- 
David C. Rankin, J.D.,P.E.