[dm-crypt] dm-crypt on SSD gives regular file corruption and segfaults

Jeff Cook jeff at deserettechnology.com
Mon Dec 26 22:03:02 CET 2011


On 12/25/2011 10:32 PM, epvdm at limpoc.com wrote:
> On Sun, Dec 25, 2011 at 09:56:38PM -0700, Jeff Cook wrote:
>> Hello.
>>
>> I'm not sure if the cause of this is the SSD or dm-crypt or what, but I
>> thought I would ask here if anyone had similar problems. My SSD with
>> ext4 and dm-crypt experiences significant corruptions and frequent,
>> seemingly-random segfaults. Data transferred to my disk will offer
>> different md5sums and sometimes large things consider themselves
>> corrupted. Has anyone experience things on dm-crypt or SSD? I am just
>> curious if this should be attributed to the dm-crypt software layer or
>> if I need to start looking more into the hardware.
>>
>> From
>> Jeff
> 
> Well, I am a little concerned because this is precisely my setup, 
> however I have never had any problems. 
> I have used it in two configurations: 
> 
> ext4 on top of dm-crypt (LUKS) on SSD
> 
> ext4 inside lvm on top of dm-crypt (LUKS) on SSD
> 
> Both have always worked perfectly for me, over a number of months at least.
> I frequently manipulate large files such as ISO images, and often use rsync
> to backup the whole filesystem, without trouble. 

I appreciate your data point, thank you. I believe I am just going to
have to accept that this is hardware, even though I was hoping it was
software related since that's easier to handle.

Thanks again.

> 
> eric


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