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Re: Slow SATA write speeds with SMB

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From: Paul de Weerd <weerd@...>
To: Anathae Townsend <atownsend@...>
Cc: 'Kristian Rooke' <kristianr@...>, <misc@...>
Subject: Re: Slow SATA write speeds with SMB
Date: Monday, April 20, 2009 - 6:01 am

Just noticed this, thought I'd quickly give you the following tip :


On Mon, Apr 20, 2009 at 03:40:35AM -0600, Anathae Townsend wrote:

| [Quote]

| pciide1 at pci0 dev 14 function 0 "NVIDIA MCP73 AHCI" rev 0xa2: DMA

| (unsupported), channel 0 wired to native-PCI, channel 1 wired to native-PCI

| [end quote]


Try forcing the pciide driver to use DMA by setting flags to 0x0001.

See pciide(4) for details (and the caveats listed there). Procede with

care to avoid dataloss (make backups etc), but this has helped me a

couple of times already.


To set this, boot -c and in UKC use 'change pciide' to alter the flags

value (keep all other things as they are). If this works for your

machine, you can use config(8) from your booted machine to configure

this permanently (remember to re-do this step after each upgrade).


Paul 'WEiRD' de Weerd


--


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Messages in current thread:
Re: Slow SATA write speeds with SMB, Jonathan Gray, (Mon Apr 20, 2:51 am)
Re: Slow SATA write speeds with SMB, Syntic, (Mon Apr 20, 3:06 am)
Re: Slow SATA write speeds with SMB, Alexander Hall, (Mon Apr 20, 2:49 am)
Re: Slow SATA write speeds with SMB, Kristian Rooke, (Mon Apr 20, 2:58 am)
Re: Slow SATA write speeds with SMB, , (Tue Apr 21, 12:40 pm)
Re: Slow SATA write speeds with SMB, Anathae Townsend, (Mon Apr 20, 5:40 am)
Re: Slow SATA write speeds with SMB, Kristian Rooke, (Mon Apr 20, 6:08 am)
Re: Slow SATA write speeds with SMB, Anathae Townsend, (Mon Apr 20, 6:23 am)
Re: Slow SATA write speeds with SMB, Kristian Rooke, (Mon Apr 20, 7:30 am)
Re: Slow SATA write speeds with SMB, frantisek holop, (Mon Apr 20, 3:20 pm)
Re: Slow SATA write speeds with SMB, Marco Peereboom, (Mon Apr 20, 3:48 pm)
Re: Slow SATA write speeds with SMB, frantisek holop, (Mon Apr 20, 6:06 pm)
Re: Slow SATA write speeds with SMB, Tony Abernethy, (Mon Apr 20, 6:19 pm)
Re: Slow SATA write speeds with SMB, frantisek holop, (Mon Apr 20, 6:29 pm)
Re: Slow SATA write speeds with SMB, Nick Guenther, (Tue Apr 21, 6:22 am)
Re: Slow SATA write speeds with SMB, Marco Peereboom, (Mon Apr 20, 6:38 pm)
Re: Slow SATA write speeds with SMB, Tony Abernethy, (Mon Apr 20, 6:36 pm)
Re: Slow SATA write speeds with SMB, Marco Peereboom, (Mon Apr 20, 6:15 pm)
Re: Slow SATA write speeds with SMB, Syntic, (Mon Apr 20, 6:50 pm)
Re: Slow SATA write speeds with SMB, Tyler Mace, (Mon Apr 20, 6:55 pm)
Re: Slow SATA write speeds with SMB, Kristian Rooke, (Mon Apr 20, 9:42 pm)
Re: Slow SATA write speeds with SMB, Bob Beck, (Mon Apr 20, 3:33 pm)
Re: Slow SATA write speeds with SMB, frantisek holop, (Mon Apr 20, 5:43 pm)
Re: Slow SATA write speeds with SMB, Christopher Linn, (Mon Apr 20, 3:50 pm)
Re: Slow SATA write speeds with SMB, Paul de Weerd, (Mon Apr 20, 6:01 am)
Re: Slow SATA write speeds with SMB, Alexander Hall, (Mon Apr 20, 3:33 am)