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Date: Wed, 24 Oct 2012 16:52:40 +0800
From: hejianet <hejianet@linux.vnet.ibm.com>
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To: linux-mtd@lists.infradead.org, Thomas.Betker@rohde-schwarz.com
Subject: Re: [question]MTD:unstable bit issues?
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Hi Thomas
Yes, we use jffs2.
How did u solve your bug? :)
On 2012-10-24 16:13, Thomas.Betker@rohde-schwarz.com wrote:
> Hello Jia:
>
>> ----------------------------------------------------- 
>> 2)a 4k bytes hole with all 0 in the flash file.
>> -----------------------------------------------------
>> -original-file DD AF C8 EE 57 EB 84 CE A1 7F B1 38 E7 22 51 2F
>> -    94 AE 77 5B 48 EA 61 8C 09 BB C5 74 6E B1 87 D2 
>> -    A9 32 8D 2A E7 7F D2 C3 DB 1A 92 E7 66 7C B8 4E 
>> ......
>>
>> +file-in-flash 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>> +    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
>> +    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
>> ......
>> -----------------------------------------------------
> We have also seen this "4k zeros" issue for some time. I never found out 
> was was happening because the issue was suddenly no longer reproducible. 
> :-(
>
> In our case, though, we didn't have NAND flash, but JFFF2 with serial NOR 
> flash. So I would guess that this is not a NAND problem.
>
> Which file system do you run? Is it JFFS2?
>
> Best regards,
> Thomas
>
>
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