From: Richard Weinberger <richard@nod.at>
To: Bhuvanchandra DV <bhuvanchandradv@gmail.com>
Cc: linux-mtd@lists.infradead.org
Subject: Re: UBIFS errors when file-system is full
Date: Sat, 1 Aug 2015 08:36:06 +0200 [thread overview]
Message-ID: <55BC68D6.2070008@nod.at> (raw)
In-Reply-To: <55BBA6A5.9020701@gmail.com>
Am 31.07.2015 um 18:47 schrieb Bhuvanchandra DV:
> On 07/24/2015 06:51 PM, Richard Weinberger wrote:
>
>> Hi!
>>
>> Am 24.07.2015 um 16:43 schrieb Bhuvanchandra DV:
>>> Disabled fastmap in U-Boot, still the corruption is persistent when using
>>> U-Boot to mount rootfs and load kernel.
>> Can you please describe your boot setup in detail?
>> Why does U-Boot _mount_ an UBIFS? Install the kernel on an UBI static volume.
>
> U-Boot mounts UBIFS for loading the kernel and device tree blobs availabel in rootfs.
> Since approximately around ~3-5 % of spare blocks are reserverd for wear leveling
> (according to the NAND manufacturer). Initially we had a separate UBI partition of 8MB
> for Kenrel, but after few times of re-writing the kernel to that volume kernel fails
> with no available free space. Due to that reason we made a single big ubi volume and
> moved the kernel and device tree blobs to rootfs.
UBI partition? You mean UBI volume?
Just install kernel, initrd and dtb on UBI static volumes.
If U-Boot has to mount UBIFS it has to do that in RW mode.
So, no fastmap for you.
> Seems the mtd-utils are not really cross-compile friendly, some how managed to build the ubi-tests
> tweeking the Makefiles.
Seeing forward to receive patches or at least a bug report.
> The tests ran on ubi partition after isolating it from U-Boot completly.
> Formatted the ubi partition and then boot with SD card (4.1.2 kernel fastmap enabled/disabled, fm_debug enabled).
> Please find the below log of ubi-tests:
>
> [io_paral] write_thread():222: written and read data are different
*blink*
Thanks,
//richard
next prev parent reply other threads:[~2015-08-01 6:36 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
[not found] ` <55A74812.2020906@gmail.com>
[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 [this message]
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
2015-07-16 7:35 ` Fwd: " Bhuvanchandra DV
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