On Wed, 7 Sep 2005, Tejun Heo wrote:
Tejun Heo wrote:
Jeff Garzik wrote:
Tejun Heo wrote:
In the following mail, I've attached a patch which might alleviate
errors during writes (as Alexander was reporting CRC errors with write
commands), but it won't do any good if you're getting errors during
reading.
http://marc.theaimsgroup.com/?l=linux-ide&m=112602112819183&w=2
Note that I would put BIG CAPITAL LETTER WARNINGS on that patch, since it
messes with the voltage.
Alexander & Jeremy.
It's as Jeff said.
TRY THE PATCH AT YOUR OWN RISK. IT MIGHT FRY PHY OF YOUR DRIVE. (enough
capitals?)
Even if you're brave enough to try, DO NOT GO OVER 600mV. 600mV is at
least inside specified limits. Also, it won't change anything regarding
read errors. All it does is increasing voltage swing while transmitting
data (writes).
Oh.. it might affect writes if errors are occurring due to CRC errors during
command trasmit. If you're getting ABRT errors instead of ICRC's, it might
indicate that commands are being mistransferred (again, I'm not sure at all).
--
tejun
Did you mean reads here? Because I think it's happening on reads as
well--it happens on an "e2fsck -b -n" on the drive when I'm booted off a
CDROM. I'm willing to try it out if it could help, but if it's unlikely
too...
I don't have any idea how these drivers work, but the ASUS K8N-DL also has
the nvidia SATA controller in it--which doesn't appear to work at all, so
I started by hooking up the drivers to the SI controller. Can the mere
presence of this additional controller make a difference?
For what it's worth, I don't _think_ I was seeing similar lockups until I
updated the firmware on this board to the latest version (1004 from 1003),
but that could be a red herring because I also wasn't paying attention to
syslog.
I've tried changes to cabling...both drives experience the exact same
symptoms for me; it certainly could be hardware related, but it would be
on the board, for which I don't have a spare.
Is there any additional information I can provide?
Jer
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