linux-kernel - Re: Samsung SSD 1.92TB PM863 Enterprise 2.5" SATA3 errors withc stable 4.4.34

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Date:   Wed, 14 Dec 2016 13:22:01 +0100
From:   Johannes Thumshirn <jthumshirn@...e.de>
To:     Vasiliy Tolstov <v.tolstov@...fip.ru>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        stable@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: Samsung SSD 1.92TB PM863 Enterprise 2.5" SATA3 errors withc
 stable 4.4.34

On Wed, Dec 14, 2016 at 03:07:48PM +0300, Vasiliy Tolstov wrote:
> Hi! I have stable problems with all Samsung SSD drivers like PM863 and
> EVO 850 Pro.
> 
> Time after time scsi bus reset link with messages:
> [ 2477.973617] ata1: exception Emask 0x50 SAct 0x0 SErr 0x4090800
> action 0xe frozen
> [ 2477.975036] ata1: irq_stat 0x00400040, connection status changed
> [ 2477.976396] ata1: SError: { HostInt PHYRdyChg 10B8B DevExch }

Random shot in the dark, have you tried changing the cable?
HostInt: HBA Internal error
PHYRdyChg: PhyRdy signal changed state 
10B8B: 10b to 8b decoding error occurred
DevExch: Device presence has changed

This could indicate a problem with the cabling and/or connectors.

Byte,
	Johannes

-- 
Johannes Thumshirn                                          Storage
jthumshirn@...e.de                                +49 911 74053 689
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