UBIFS Panic

[Akshay Bhat]

On Tue 01 Jul 2014 10:56:06 AM EDT, Richard Weinberger wrote:
> Am 01.07.2014 16:46, schrieb Akshay Bhat:
>>
>>
>> On Tue 01 Jul 2014 10:32:34 AM EDT, Richard Weinberger wrote:
>>> Am 01.07.2014 16:18, schrieb Akshay Bhat:
>>>>
>>>>
>>>> On Tue 01 Jul 2014 03:48:54 AM EDT, Richard Weinberger wrote:
>>>>> Am 01.07.2014 03:09, schrieb hujianyang:
>>>>>>>
>>>>>>> Is enabling UBI_FASTMAP the cause for the panic? If so I can disabled the
>>>>>>> feature and re-test. Do you see any compatibility issue going from:
>>>>>>> Current config -> New config -> Failsafe config
>>>>>>>
>>>>>>
>>>>>> I don't know. But I found func ubi_wl_get_peb() in drivers/mtd/ubi/wl.c
>>>>>> will return an error ENOSPC without any error messages. And this func
>>>>>> seems related with fastmap feature.
>>>>>
>>>>> I have sort of an idea what could going on.
>>>>> Akshay, can you please confirm that you face the issue only with UBI_FASTMAP=y?
>>>>
>>>> I have not been able to recreate the issue with UBI_FASTMAP=n
>>>
>>> Okay, you test case basically fills the filesystem over and over?
>>> And after some time you face the said issue.
>>> Is this correct?
>>
>> Yes. From testing, the "some time" is typically after crossing the WL threshold.
>
> Good. I'll dig into that by the end of the week.

Hi Richard, wanted to check if you got a chance to dig into this? 
Thanks.

> Thanks,
> //richard
>