On 25/mar/08, at 09:44, Jeremy Chadwick wrote:
I re-read your mail -- sorry. You're using SATA.
I'll update my Wiki page to state that the loader.conf DMA disable
trick
only works for PATA.
In the interim, I recommend you contact Scott Long, especially if your
problem is easily repeatable. He's offered to help track this down.
Thanks I'll try contacting Scott.
In the meantime I think I have narrowed down the problem in my case to
the on-board Promise SATA controller.
My motherboard has 2 SATA controllers, one Promise and one Via and I
have 2 sets of disks with gmirror RAID 1 - 2xSeagate Barracuda +
2xWD5000YS.
atapci0: <Promise PDC20378 SATA150 controller>
atapci1: <VIA 6420 SATA150 controller>
The Western Digital disks were connected to the Promise controller and
giving the READ_DMA TIMEOUT errors, I've now swapped the disks around
so the Seagate ones are attached to the Promise controller and now
these are reporting the errors.
So it seems I can definitely exclude disk hardware problems.
-Gianni
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