[Devil-linux-develop] [ devil-linux-Feature Requests-456500 ] Disabling UDMA at boot time

[<no...@so...>]

Feature Requests item #456500, was opened at 2001-08-29 06:01
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Category: Base System
Group: None
>Status: Closed
Priority: 9
Submitted By: Heiko Zuerker (smiley73)
Assigned to: Heiko Zuerker (smiley73)
Summary: Disabling UDMA at boot time

Initial Comment:
Add hdparm utility to base system.
Write script, which is disabling UDMA (when requested, 
but should be default) in Initrd after reading the 
config disc.

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Comment By: Heiko Zuerker (smiley73)
Date: 2001-11-06 13:58

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yes there are problems
some users reported read problems and this was because of 
the enabled udma mode.
since we changed this setting, no more problems occured.
it is still possible to enable udma in a script with the 
hdparm utility.
but i think it is not that big performance decrease without 
udma in the case of devil-linux

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Comment By: Gunther Stammwitz (gstammw)
Date: 2001-11-05 15:44

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udma is faster that normal dma access.
are there any prolems when using udam ?


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Comment By: Heiko Zuerker (smiley73)
Date: 2001-09-02 11:06

Message:
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hdparm added to initrd and base system

problems under vmware, cannot set drive parameters
test with "real" computer required

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You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=410646&aid=456500&group_id=34096