UBI/UBIFS: md5sum of files go bad while running (no powercut)

[Richard Weinberger]

On Thu, Dec 17, 2015 at 2:16 PM, Richard Weinberger
<richard.weinberger at gmail.com> wrote:
> On Thu, Dec 17, 2015 at 12:07 PM, Michal Suchanek <hramrach at gmail.com> wrote:
>> Hello,
>>
>> On 17 December 2015 at 11:03, Ralph Erdmann <rerdmann at bittailors.com> wrote:
>>> Dear all,
>>> we encounter the following problem on some of our embedded boards in the field:
>>> Some files "go bad" during runtime, which causes our application to crash.
>>> A reboot "heals" this error.
>>
>> Is it possible that these libraries being used all the time by the
>> application get cached in memory, get never evicted, and only the
>> cached in-memory copy is bitrotten?
>
> I'd also go in that direction.
> Maybe something is corrupting your memory.
> Does writing 2 to vm.drop_caches help?

Can you also compare good bad states?
Maybe the corruption pattern can give you hint what happened.

-- 
Thanks,
//richard