UBIFS errors when file-system is full

[Richard Weinberger]

Am 14.07.2015 um 10:29 schrieb Bhuvanchandra DV:
> On 07/14/2015 12:02 PM, Richard Weinberger wrote:
> 
>> Am 14.07.2015 um 08:30 schrieb Bhuvanchandra DV:
>>> Reproduced the issue with a clean UBI image.
>> On 4.1?
>> How can you reproduce?
> 
> Flashed a clean UBI image with 4.1.
> I can reproduce it by amost filling up the flash and doing a power resets for around ~200 cycles.

And it really happens only if you're filling up the UBIFS?
If you set the UBI module parameter "fm_debug", does the EBA selfcheck trigger?

> During some point U-Boot cannot mount the ubifs partition and fails with:
> "Error reading superblock on volume 'ubi0:rootfs' errno=-22!"

How exactly is U-Boot involved? Does U-Boot touch UBI in any way?

Thanks,
//richard