Ext4 + barriers=1 + ssd + power loss while commiting to a git repo = broken repo?

[Bryn M. Reeves]

On 04/14/2011 04:38 PM, Michał Piotrowski wrote:
> 2011/4/14 Jason D. Clinton <me at jasonclinton.com>:
>> 2011/4/14 Bruno Wolff III <bruno at wolff.to>
>>>
>>> On Thu, Apr 14, 2011 at 16:53:00 +0200,
>>>  Michał Piotrowski <mkkp4x4 at gmail.com> wrote:
>>>> "Fixed a rare condition that could cause the drive to reset and clear
>>>> the data"
>>>>
>>>> I begin to wonder if it was the right decision to change main drive to
>>>> SSD :)
>>>>
>>>> Maybe it's time to start using data=journal
>>>
>>> If you want to read some scary stuff some SSDs do take a look at the
>>> following
>>> comment from LWN: http://lwn.net/Articles/437467/
>>
>> All the "compacting" firmwares on all SSD's do this.
>>
>>
> 
> I hope that it works this way only on NTFS and do not attempt to free
> unused Ext4 space :)
> 

Dan Berrangé and I were just wondering how it "knows" it's NTFS; what happens
for e.g. if you put an image of an NTFS volume inside an ext4 volume on one of
these things?

Kinda brings back memories of reiserfsck fun.

Regards,
Bryn.