6.1-RELEASE: WARNING - WRITE_DMA soft error

srwadleigh srw at udor.net
Sun Jun 11 07:35:25 UTC 2006


Doug White wrote:
> On Mon, 5 Jun 2006, srwadleigh wrote:
>
>> I have 6.1-RELEASE installed on a Supermicro SuperServer 6014P-TR
>> with Supermicro motherboard: Super X6DHP-TG 
>> http://supermicro.com/products/motherboard/Xeon800/E7520/X6DHP-TG.cfm
>>
>> I have four SATA drives attached to the internal backplane which uses
>> the following controller, I am Not using the onboard RAID features:
>>
>>    Marvell 88SX6081 4-port SATA Controller with 3rd-Party Adaptec
>>    AIC-8110(4x drive), RAID 0, 1, JBOD support
>>
>> The problem I am seeing occurs with the fourth drive, ad10, and appears
>> on all read/write operations:
>>
>> ad10: WARNING - WRITE_DMA48 soft error (ECC corrected) LBA=293046767
>> kernel:ad10: WARNING - WRITE_DMA soft error (ECC corrected) LBA=12393823
>> kernel:ad10: WARNING - READ_DMA soft error (ECC corrected) LBA=12480567
>>
>> This same warning message appears on 6.0-RELEASE and 6.1-STABLE
>
> I have problems with a similar chassis w/ SCSI and bay 3 throwing 
> spurious errors on a number of systems, so I think its just poor 
> backplane design on SuperMicro's part. Try getting them to replace 
> your backplane board.
>

I am going to RMA the backplane and its composite SATA cable. I'll see 
if that makes a difference. Obviously not ideal, but how serious do you 
think these ECC warnings are, data lose, system stability?

Thanks


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