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From: Akshay Bhat <abhat@lutron.com>
To: Richard Weinberger <richard@nod.at>
Cc: linux-mtd <linux-mtd@lists.infradead.org>,
	hujianyang <hujianyang@huawei.com>
Subject: Re: UBIFS Panic
Date: Thu, 10 Jul 2014 17:38:44 -0400	[thread overview]
Message-ID: <53BF07E4.4010302@lutron.com> (raw)
In-Reply-To: <53B2CC06.3000205@nod.at>



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
>

  reply	other threads:[~2014-07-10 21:40 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-26 20:28 UBIFS Panic Akshay Bhat
2014-06-27  2:36 ` hujianyang
2014-06-30 13:01   ` Akshay Bhat
2014-06-30 14:48     ` Richard Weinberger
2014-06-30 17:23       ` Akshay Bhat
2014-06-30 17:34         ` Richard Weinberger
2014-07-01  1:09         ` hujianyang
2014-07-01  7:48           ` Richard Weinberger
2014-07-01 14:18             ` Akshay Bhat
2014-07-01 14:32               ` Richard Weinberger
2014-07-01 14:46                 ` Akshay Bhat
2014-07-01 14:56                   ` Richard Weinberger
2014-07-10 21:38                     ` Akshay Bhat [this message]
2014-07-10 21:42                       ` Richard Weinberger
2014-07-11 20:45                       ` Richard Weinberger
2014-07-16 17:31                         ` Akshay Bhat
2014-07-16 21:00                           ` Richard Weinberger
2014-07-22 18:39                             ` Akshay Bhat
2014-07-01  0:58     ` hujianyang

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