From: Jeff Garzik <jgarzik@pobox.com>
To: Ryan Mack <lists@mackman.net>
Cc: Markus Plail <linux-kernel@gitteundmarkus.de>,
linux-kernel@vger.kernel.org
Subject: Re: 2.4.21 ServerWorks DMA Bugs
Date: Sat, 05 Jul 2003 13:07:45 -0400 [thread overview]
Message-ID: <3F0705E1.2090200@pobox.com> (raw)
In-Reply-To: <Pine.LNX.4.53.0307050956060.2029@mackman.net>
Ryan Mack wrote:
> That at least explains the lack of DMA, but why does non-DMA IO result in
> such significant clock skew?
Sounds like the kernel is disabling interrupts for a long time, when
doing PIO data transfer (non-DMA IO).
Jeff
next prev parent reply other threads:[~2003-07-05 16:53 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-05 6:45 2.4.21 ServerWorks DMA Bugs Ryan Mack
2003-07-05 6:49 ` Andre Hedrick
2003-07-05 7:21 ` Markus Plail
2003-07-05 16:58 ` Ryan Mack
2003-07-05 17:07 ` Jeff Garzik [this message]
2003-07-06 7:40 ` Alan Cox
2003-07-06 9:06 ` Tomas Szepe
2003-07-06 9:10 ` Alan Cox
2003-07-06 11:10 ` Tomas Szepe
2003-07-06 11:38 ` Alan Cox
2003-07-06 16:42 ` Vojtech Pavlik
2003-07-06 17:49 ` Alan Cox
2003-07-07 0:42 ` Andre Hedrick
2003-07-07 3:42 ` Tomas Szepe
2003-07-07 6:42 ` Alan Cox
2003-07-07 8:49 ` Tomas Szepe
2003-07-07 8:13 ` Andre Hedrick
2003-07-07 8:17 ` Andre Hedrick
2003-07-07 8:45 ` Tomas Szepe
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