Drive problem? Motherboard problem?

[akulbe]

I’m seeing this in dmesg output…

[91507.844709] ata5.00: exception Emask 0x10 SAct 0x80 SErr 0x4c0000 action 0x6 frozen
[91507.844756] ata5.00: irq_stat 0x08000000, interface fatal error
[91507.844774] ata5: SError: { CommWake 10B8B Handshk }
[91507.844793] ata5.00: failed command: WRITE FPDMA QUEUED
[91507.844809] ata5.00: cmd 61/08:38:90:5e:58/00:00:0a:00:00/40 tag 7 ncq dma 4096 out
res 40/00:01:01:4f:c2/00:00:00:00:00/00 Emask 0x10 (ATA bus error)
[91507.844852] ata5.00: status: { DRDY }
[91507.844868] ata5: hard resetting link

but smartctl says nothing is reporting errors for any of the 5 drives in the system. I’m stumped,

 

[leesteken]

If a long self-test of the drive (smartctl -t long /dev/disk/by-id/... ) does not report errors once finished after some time, then maybe it's the cable or the controller (on either side). Try a different cable and a different SATA port and a different SATA controller to test.