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Date:   Fri, 01 Mar 2019 07:56:37 -0800
From:   James Bottomley <>
To:     Erwan Velu <>,
        Erwan Velu <>,
        "" <>
Cc:     Don Brace <>,
        "Martin K. Petersen" <>,
        "open list:MICROSEMI SMART ARRAY SMARTPQI DRIVER (smartpqi)" 
        "open list:MICROSEMI SMART ARRAY SMARTPQI DRIVER (smartpqi)" 
        open list <>
Subject: Re: [PATCH v2] scsi: smartpqi_init: Reporting 'logical unit failure'

On Fri, 2019-03-01 at 15:43 +0000, Erwan Velu wrote:
> Le 01/03/2019 à 16:26, James Bottomley a écrit :
> > [...]
> > Shouldn't this be a variant of sdev/scmd_printk?  Otherwise it
> > tells
> > you what disk in the array terms is the problem but not what device
> > in
> > your actual system is affected.
> Hey James,
> My initial take on that was that pqi_take_device_offline(), which is 
> called just after, will print the "re-scanning " message with the
> same 
> format.
> As they will be both printed in the same error context and one after
> the 
> other, I though that would make sense to represent the same
> information 
> to ease the reading like cause -> consequence.
> As the message is about the LUN itself, which is reported faulty, I 
> though it would worth reporting the info that way.
> Shall I consider printing also the disk name in addition ?

I was thinking just

if (printk_ratelimit())
	scmd_printk(KERN_ERR, scmd, "received 'logical unit failure' from controller for scsi %d:%d:%d:%d\n", ...

That will give all the necessary information


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