From: Richard Weinberger <richard@nod.at>
To: Bhuvanchandra DV <bhuvanchandradv@gmail.com>
Cc: "linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>
Subject: Re: UBIFS errors when file-system is full
Date: Tue, 14 Jul 2015 13:06:47 +0200 [thread overview]
Message-ID: <55A4ED47.4060802@nod.at> (raw)
In-Reply-To: <55A4DF83.5080505@gmail.com>
Am 14.07.2015 um 12:08 schrieb Bhuvanchandra DV:
> On 07/14/2015 02:12 PM, Richard Weinberger wrote:
>
>> 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?
>
> The only thing observed so far during this tests is when the journactl log starts filling up the flash
> memory and at some point of time fails to mount the ubifs.
You mean filling up the filesystem? How and when does the power cut happen?
> Flashed an Image which occupies less flash ~40-50%. Run the same tests for around 1200 power cycles
> no issues observed during mounting but still there are few error messages:
> ..
> [ 6.879643] ubi0 error: __wl_get_peb: no free eraseblocks
This message cannot come from a recent kernel.
> So came to an assumption that filling the flash to max lead to this issue.
>
> Could there be any other possibility for this issue apart from filling up the flash ?
>
>> If you set the UBI module parameter "fm_debug", does the EBA selfcheck trigger?
>
> Yes, EBA selfcheck got triggered. Atleast i could see the debug printks added
> in 'self_check_eba' method after setting the fm_debug parameter.
>
>>
>>> 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?
>
> kernel, device tree blobs are available in rootfs /boot. U-Boot mounts the ubi partition
> and loads the kernel and device tree blob.
>
> Also U-Boot is involved during flashing the UBI image to flash.
In you last mail you wrote
"During some point U-Boot cannot mount the ubifs partition and fails with"..
So, please reproduce from scratch(!) with a recent kernel (4.1 or newer) and provide all needed infos.
Otherwise I see no way howto help you.
Thanks,
//richard
next prev parent reply other threads:[~2015-07-14 11:07 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-13 13:55 UBIFS errors when file-system is full Bhuvanchandra DV
2015-07-13 14:09 ` Richard Weinberger
2015-07-14 4:23 ` Bhuvanchandra DV
2015-07-14 6:13 ` Richard Weinberger
2015-07-14 6:30 ` Bhuvanchandra DV
2015-07-14 6:32 ` Richard Weinberger
2015-07-14 8:29 ` Bhuvanchandra DV
2015-07-14 8:42 ` Richard Weinberger
2015-07-14 10:08 ` Bhuvanchandra DV
2015-07-14 11:06 ` Richard Weinberger [this message]
[not found] ` <55A74812.2020906@gmail.com>
2015-07-16 7:35 ` Fwd: " Bhuvanchandra DV
[not found] ` <55A74AA1.2000000@nod.at>
[not found] ` <55A7540C.3050900@nod.at>
[not found] ` <55A7592D.6010906@gmail.com>
[not found] ` <55A75A05.7040603@nod.at>
2015-07-16 7:33 ` Bhuvanchandra DV
2015-07-21 6:04 ` Bhuvanchandra DV
2015-07-21 6:14 ` Richard Weinberger
2015-07-22 7:10 ` Bhuvanchandra DV
2015-07-22 7:20 ` Richard Weinberger
2015-07-24 14:43 ` Bhuvanchandra DV
2015-07-24 16:51 ` Richard Weinberger
2015-07-31 16:47 ` Bhuvanchandra DV
2015-08-01 6:36 ` Richard Weinberger
2015-08-06 10:31 ` Bhuvanchandra DV
2015-08-07 12:37 ` Richard Weinberger
2015-08-12 7:01 ` Stefan Agner
2015-08-12 7:27 ` Richard Weinberger
2015-09-01 0:45 ` Stefan Agner
2015-09-01 1:43 ` Brian Norris
2015-09-01 2:20 ` Stefan Agner
2015-09-02 19:58 ` Stefan Agner
2015-09-02 20:13 ` Brian Norris
2015-09-02 20:41 ` Stefan Agner
2015-09-07 13:47 ` Bhuvanchandra
2015-09-11 4:03 ` Bhuvanchandra
2015-09-12 9:39 ` Richard Weinberger
2015-09-13 4:45 ` Bhuvanchandra
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