Ubuntu

SCARY! Raid0 data corruption trim

Asked by SergeiS

There's a scary issue with fstrim on raid0 and raid10 mdadm devices. It's fixed upstream (see below). What's the status of this on Ubuntu, specifically Trusty and after?

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SergeiS (sergei-redleafsoft) said : 		#1

Here's the links:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=793326
http://www.spinics.net/lists/raid/msg49440.html

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SergeiS (sergei-redleafsoft) said : 		#2

Did my amateur analysis by extracting sources for current trusty kernel 3.13.0-65-generic and current trusty-lts-utopic 3.16.0-50-generic and looking at files referenced in patches from the Martin K. Petersen's email, and it appears that 3.16 already has this fix included, and 3.13 is a completely different code base, so could be not affected.

Could someone knowledgeable chime in on this. I've disabled fstrim in cron until I understand the situation better.

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actionparsnip (andrew-woodhead666) said : 		#3

I suggest you report a bug and cite the links you added.

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