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Bug 81833 - CMD6xx ide-cd dma hang
Summary: CMD6xx ide-cd dma hang
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: kernel
Version: 8.0
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Arjan van de Ven
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2003-01-14 15:27 UTC by Péter, Soós
Modified: 2007-04-18 16:49 UTC (History)
0 users

Fixed In Version: 9
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2003-05-05 11:13:25 UTC

Attachments (Terms of Use)

Description Péter, Soós 2003-01-14 15:27:39 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; hu-HU; rv:1.2) Gecko/20021206

Description of problem:
HP OmniBook 500 have a docking bay with optional CD or DVD device. Ide dma mode
do not work on these drives. If you enable dma mode the laptop hangs. There is a
patch for it at URL

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Boot with RedHat kernel
2. Enable DMA mode for CD-ROM

Actual Results:  System hang.

Expected Results:  DMA mode works well

Additional info:

Comment 1 Péter, Soós 2003-02-10 16:04:45 UTC
This bug also appeared in the latest errata kernels for both RedHat Linux 7.x
and 8.0.

Comment 2 Péter, Soós 2003-04-09 15:39:42 UTC
It seems all CMD6xx chipset based machin affected by this bug.

Comment 3 Péter, Soós 2003-05-05 11:13:25 UTC
It seems to work in RedHat Linux 9 with latest errata kernel (2.4.20-9)

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