What is HSM violation? Causing ata1.00 hard resetting link

[Jeff Chua]

Hi,

I just got an external e-SATA hard disk, and I'm testing for backup.

When I tried to "tar" 90GB to it, it caused a HSM violation, and since 
this
is the root file system, system is brain-dead. "Bus error" for every 
command
issued!


Error is (typed as was captured in the screen) ...

ata1.00: exception Emask 0x2 SAct 0x7 SErr 0x3000400 action 0x6
ata1.00: irq_stat 0x44000008
ata1.00: cmd 60/30:00:37:b0:84/00:00:17:00:00/40 tag 0 ncq 24576 in
       res 40/00:08:6f:b0:84/00:00:17:00:00/40 Emask 0x2 (HSM violation)
ata1.00: cmd 60/50:08:6f:b0:84/00:00:17:00:00/40 tag 1 ncq 40960 in
       res 51/04:00:6f:b0:84/00:00:17:00:00/40 Emask 0x403 (HSM violation)
ata1.00: cmd 60/00:10:bf:b0:84/01:00:17:00:00/40 tag 2 ncq 131072 in
       res 40/00:08:6f:b0:84/00:00:17:00:00/40 Emask 0x2 (HSM violation)
ata1: hard resetting link
ata1: softreset failed (device not ready)
ata1: hard resetting link
ata1: softreset failed (device not ready)
ata1: hard resetting link
ata1: link is slow to respond, please be patient (ready=0)


Running on SSD on Linux 2.6.35-rc3.

This does not happen all the time, but I've seen this if it's copying
intensively.

Thanks,
Jeff.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/