Bug 208049

Created attachment 137242 [details]
well .. dmesg for Fedora 5 kernel 2.6.17-1.2187_FC5

Just showing that the IDE driver is loaded for my DVD writer instead of the
SATA driver.

And since I don't have an option for combined mode or legacy in my bios ...
err just wondering if say maybe the mode can be detected by the kernel ..

or maybe something as simple as delay loading the ide driver until after the
SCSI/SATA drivers are loaded.

That way if SCSI / SATA drivers can't pick a device and its truly IDE .. when
the IDE driver starts, it will then load the device.

A new kernel update has been released (Version: 2.6.18-1.2200.fc5)
based upon a new upstream kernel release.

Please retest against this new kernel, as a large number of patches
go into each upstream release, possibly including changes that
may address this problem.

This bug has been placed in NEEDINFO state.
Due to the large volume of inactive bugs in bugzilla, if this bug is
still in this state in two weeks time, it will be closed.

Should this bug still be relevant after this period, the reporter
can reopen the bug at any time. Any other users on the Cc: list
of this bug can request that the bug be reopened by adding a
comment to the bug.

In the last few updates, some users upgrading from FC4->FC5
have reported that installing a kernel update has left their
systems unbootable. If you have been affected by this problem
please check you only have one version of device-mapper & lvm2
installed.  See bug 207474 for further details.

If this bug is a problem preventing you from installing the
release this version is filed against, please see bug 169613.

If this bug has been fixed, but you are now experiencing a different
problem, please file a separate bug for the new problem.

Thank you.

Created attachment 138635 [details]
dmesg for new kernel

DMA doesnt load in new kernel either (WITH OUT KERNEL ARGUEMTNS)

I've had a few thouhts about this... Probing the bios to determine mode and may
not even help depending on the computer. A segestion I said before was to delay
IDE driver or something so SCSI / SATA drivers load first.

However, I also thought of something else. Throw in a check: IF the IDE driver
fails to enable DMA for the device, release the device so then it may get
loaded by SCSI / SATA driver. But I don't know the exetent of what's involded
with this .. but just some ideas as it would be nice for people to have to not
worry about adding kernel arguements or custom config to get DMA on their
drive.

Oh to be a step ahead same happens in FC6 - just did a fresh install today

This was a problem for me as well. Before doing the modifications suggested by
http://www.fedoraforum.org/forum/showthread.php?t=114586, my DVD read speed was
1.5 MB/s. After the modifications, the speed went up to 5.6 MB/s, and the
machine is much more responsive. 

Btw, the upgrade from FC5 to FC6 on this machine took 16 hours! Probably due to
this bug. My machine is a Dell D610. 

according to
http://fedoraproject.org/wiki/Releases/FeatureLibataForPata?highlight=%28CategoryFedora7Features%29
the Fedora 7 wiki intended release fixes include making the necessary changes to
Kernel source and configuration and whatnot
but if done correctly it will most likely fix the problem

If I remember to I'll try out Fedora 7 Test 3 when it comes out and if its broke
there hopefully when i report it, there will still be about 2 months to general
release (due to test 4) to make sure its in there

but no hurries ... great job kernel devs, the workaround to enable dma is simple
enough

I'm running RHEL 5.1 on a Dell Latitude D820.  I'm still experiencing this issue.

: localhost 17#; hdparm -d1 /dev/hdc

/dev/hdc:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Operation not permitted
 using_dma    =  0 (off)

I'm running the latest kernel available for RHEL 5.1:

: localhost 18#; uname -r
2.6.18-53.1.13.el5

Should I still need to pass options to my boot line?

Fedora apologizes that these issues have not been resolved yet. We're
sorry it's taken so long for your bug to be properly triaged and acted
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If you're currently running a version of Fedora Core between 1 and 6,
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If this bug is still open against Fedora Core 1 through 6, thirty days
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Thanks for your help, and we apologize again that we haven't handled
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This bug is open for a Fedora version that is no longer maintained and
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