linux-kernel - Re: [PATCH v3 0/1] aacraid: Host adapter Adaptec 6405 constantly resets under high io load

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Message-ID: <ZyJKTug2AtqWs3BQ@mactool-usb>
Date: Wed, 30 Oct 2024 16:01:34 +0100
From: Dirk Tilger <dirk@...temication.com>
To: Sagar.Biradar@...rochip.com
Cc: james.hilliard1@...il.com, martin.petersen@...cle.com,
	khorenko@...tuozzo.com, christian@...ssegger.com,
	aacraid@...rosemi.com, Don.Brace@...rochip.com,
	Tom.White@...rochip.com, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org, Gilbert.Wu@...rochip.com
Subject: Re: [PATCH v3 0/1] aacraid: Host adapter Adaptec 6405 constantly
 resets under high io load

On Fri, Dec 16, 2022 at 08:44:22PM +0000, Sagar.Biradar@...rochip.com wrote:
> Konstantin,
> Is it possible for you or someone you know to test on your original test bed with the "msi" set to "1", and post the results?

Hello,

I had lately some exchange with Konstantin about the issue and he
suggested to document my findings on LKML for the benefit of the wider
community. 

I was encountering the same issue with an Adaptec 6405E with 4 connected
disks configured on the controller as "Simple_volume" and further
utilised in a Linux software RAID (mdraid) configuration. My CPU is a
i7-3930K.

I had set "msi" to "2" and the problem persisted. I have not tested
msi=1 but as far as I understand it should have the same effect with
regards to the system hangs.

I have applied Konstantins [PATCH v2 1/2] to a v6.6 line kernel and the
system hangs disappeared. My system has been running for 12 days without
any syslog message indicating a controller problem despite occasional
heavy I/O load.

Please let me know if you require any additional information.

Kind regards,
Dirk.