UBIFS Panic

[Richard Weinberger]

Am 10.07.2014 23:38, schrieb 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.

Can you please rerun with the attached patch applied?
Maybe it can give use a hint. :)

Thanks,
//richard
-------------- next part --------------
A non-text attachment was scrubbed...
Name: debug.diff
Type: text/x-patch
Size: 1637 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-mtd/attachments/20140711/74209fa2/attachment.bin>