UBI/UBIFS corruptions during random power-cuts

[Richard Weinberger]

Bhuvan,

Am 13.02.2017 um 04:34 schrieb Bhuvanchandra DV:
> On 02/10/2017 06:31 PM, Richard Weinberger wrote:
> 
>> Bhuvan,
>>
>> Am 09.02.2017 um 05:59 schrieb Bhuvanchandra DV:
>>>> Just in case, you can trigger this also with a fresh filesystem?
>>>> Or did you always keep the same one?
>>> Yes, I triggered it with fresh filesystem.
>> Okay. Not good.
>>
>> How do you trigger this? What workload is running while the power-cut
>> happens?
> 
> The issue is triggered when doing a continous external power-cut for every
> 25sec since power ON. After a week or two observed this issue. There is no
> additional work load on CPU during the test, it just boots to a lxde desktop.

So, the power-cut happens while the system is idle? Hmm.

>> Did you try also kernel 4.9?
> 
> I did ran similar testes on our downstream kernel 4.4 and 4.9 kernel few weeks
> back, observed similar issues.

Okay, so I didn't break it lately. Puh... ;)

>> Does it also only happen then xattrs are used?
> 
> Didn't check that. How exactly to check whether xattr is used ?

i.e. is a LSM such das SELinux being used?

Thanks,
//richard