From: war <war@starband.net>
To: linux-kernel@vger.kernel.org
Subject: ATA/100 Promise Board
Date: Wed, 10 Oct 2001 13:57:34 -0400 [thread overview]
Message-ID: <3BC48C0E.760488AA@starband.net> (raw)
Any idea why DMA is sometimes on and sometimes not for a few cdrom
drives I have hooked up to my promise controller?
Whether it is on or off, whenever I copy a CD from a (dma) cdrom whether
it dma is on or off it slows my system down big time. Move the cursor
around in X, and it lags, watch X-Chat, the characters you type in
slowly appear 3-5 seconds after.
Hook the same drives up to the motherboard ide interfaces and there is
no lag at all.
This has always been the case with my cdroms.
When I had my HD on the Promise, it did DMA etc just fine.
Is there a problem with the driver if a HD is not on there it doesn't do
DMA correctly or something?
next reply other threads:[~2001-10-10 18:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-10 17:57 war [this message]
2001-10-10 18:28 ` ATA/100 Promise Board Josh McKinney
2001-10-10 19:08 ` Wilson
2001-10-10 19:20 ` Joel Jaeggli
2001-10-10 19:31 ` Wilson
2001-10-10 19:49 ` Joel Jaeggli
2001-10-10 20:24 ` Wilson
-- strict thread matches above, loose matches on Subject: below --
2001-10-10 19:41 Torrey Hoffman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3BC48C0E.760488AA@starband.net \
--to=war@starband.net \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.