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Re: kern/45034: Satalink driver downgrades from DMA to PIO 4 from soft errors (sandpoint/PowerPc)
The following reply was made to PR kern/45034; it has been noted by GNATS.
From: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
Cc: kern-bug-people%NetBSD.org@localhost, gnats-admin%NetBSD.org@localhost,
Subject: Re: kern/45034: Satalink driver downgrades from DMA to PIO 4 from
soft errors (sandpoint/PowerPc)
Date: Tue, 14 Jun 2011 18:22:23 +0200
On Thu, Jun 09, 2011 at 03:00:01PM +0000, oscarmolin%gmail.com@localhost wrote:
> When performing large file transfers (tested over NFS) onto harddrives
> attached to silicon image 3512 controller, soft errors occur and causes the
> satalink driver to downgrade from DMA to PIO 4 mode, causing big performance
> This has been tested with all for available SATA channels (my system has
> 2x2-port controllers) and with different harddrives and SATA cables.
> After rebooting, the harddrives function at full speed again but when large
> transfers are started, soft errors occur after a short while.
please give more details about the error (the kernel messages for
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
NetBSD: 26 ans d'experience feront toujours la difference
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