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Re: [dm-devel] scsi errors



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



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