Facing serious problems after hardware upgrade with FreeBSD 10.3

[Steven Hartland]

TBH sounds like you may have some bad / incompatible hardware.

For the ata errors first thing I'd do is check cabling.

Is the disk fine if you remove the scanner from the equation (disconnect 
it)?

On 22/10/2016 19:08, Manish Jain wrote:
> Hi,
>
> I am running FreeBSD 10.3 amd64.
>
> Over the last couple of months, I have made a major upgrade of my
> computer - an upgrade which has knocked out virtually everything except
> the CPU (AMD Athlon X2 270).
>
> In phase 1 (about 2 months ago), I moved the motherboard to a new
> Gigabyte SB970 based board (paired with the the old Athlon CPU) and the
> hard disk to a Samsung EVO 850 SSD
>
> In phase 2 (yesterday), I upgraded other components (new components
> listed) : PSU (Corsair RM650x), RAM (Kingston HyperX, 8 GB, single
> piece), DVD drive (Asus DRW-24D5MT), cabinet (Circle 821).
>
> The USB peripherals remain the same ; mouse, keyboard, printer, scanner.
>
> The USB scanner (Canon MG 2470 Pixma; multi-function device serving
> purely as scanner) is the one that is of most interest.
>
> After phase 2 of the upgrade was over, I have been facing this situation
> (since yesterday) :
>
> If I run 'scanimage -L' as root on the console at ttyv4 (no X), most of
> the times it returns with a listing of the Canon scanner. At the same
> time, on ttyv0, I also get the following diagnostics :
>
> ata0: FAILURE - odd-sized DMA transfer attempt 5 % 2
> ata0: setting up DMA failed
>
> Once in about 2-3 tries, the command actually gets totally stuck. Not
> even Control-C wakes it up. In such cases, the system usually has to be
> rebooted - sometimes forcibly by hard-pressing the switch on the cabinet.
>
> Further, at the time I boot, I sometimes also see the following
> diagnostics on ttyv0 :
>
> (ada0:ata0:0:1:0): READ_DMA48. ACB: 25 00 df ea ff 40 33 00 00 00 01 00
> (ada0:ata0:0:1:0): CAM status: Command timeout
> (ada0:ata0:0:1:0): Retrying command
>
> The last time I spotted the above error ("CAM status: Command timeout")
> was in a single user shell running fsck after an unclean shutdown. No
> other command except fsck and reboot was given to the system during that
> session.
>
> I am trying to determine whether the errors I am facing are a problem
> with the hardware; with the kernel; or with the USB code. The only other
> thing notable I can add is the USB scanner works seamlessly under
> Windows XP (which serves as my second OS on my dual-boot machine).
>
> If anybody can help me determine what is wrong with the system, I shall
> be highly grateful - I feel practically paralysed after investing so
> much time, money and energy upgrading the hardware, only to be feeling
> as if now I am stuck in no man's land.
>
>
> Thanks
> Manish Jain
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