[dm-devel] scsi errors

[Arthur Bergman]

I doubt On 10 Jan 2005, at 10:15, Yann.Dupont wrote:

> Arthur Bergman wrote:
>
>> Ok,
>>
>> Recompiled the kernel module and rebooted.
>>
>> First thing that happened is this.
>>
>>
>> This is the 8.00.00b21-k" driver that came with 2.6.10-rc1
>>
>> Do I need to worry?
>
>
> I don't think so, I have this at every boot.
> (using debug enabled qla drivers)
>
> This summer, I had lots of underrun & scsi errors, like you see.
> It was rather variable (after 1 day ou 1 week), often when a bust of 
> transfer was happening.
> After 1 month of debug with andrew vasquez (qlogic engineer),
> and after having suspected raid firmware, qlogic driver, and even dm 
> code,
>
> it turns to be a card wich had problems with his laser AND an sfp wich 
> had problems
> on 1 of my raid channel.
>
> So beware of the physical part. Those opticals parts seems rather 
> sensitive.
>
> This was with multipath off.
>
> Maybe you have problem on 1 of yours paths ??
>

I think it is on all paths as it is detected on all scsi devices. Also 
we don't see the problem with the IBM approved drivers.

Cheers
Arthur



-----
CTO @ Fotango Ltd
+447834716919
http://www.fotango.com/


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