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Bug 208049
Summary: | DMA -- Probe BIOS or other area to determine which mode to use? (ICH, AHCI, ...) | ||||||||
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Product: | [Fedora] Fedora | Reporter: | Steve <steve.t.armstrong> | ||||||
Component: | kernel | Assignee: | Jeff Garzik <jgarzik> | ||||||
Status: | CLOSED WONTFIX | QA Contact: | Brian Brock <bbrock> | ||||||
Severity: | low | Docs Contact: | |||||||
Priority: | medium | ||||||||
Version: | 6 | CC: | astrand, daly, davej, peterm, triage, wtogami | ||||||
Target Milestone: | --- | ||||||||
Target Release: | --- | ||||||||
Hardware: | All | ||||||||
OS: | Linux | ||||||||
Whiteboard: | bzcl34nup | ||||||||
Fixed In Version: | Doc Type: | Bug Fix | |||||||
Doc Text: | Story Points: | --- | |||||||
Clone Of: | Environment: | ||||||||
Last Closed: | 2008-05-06 16:24:41 UTC | Type: | --- | ||||||
Regression: | --- | Mount Type: | --- | ||||||
Documentation: | --- | CRM: | |||||||
Verified Versions: | Category: | --- | |||||||
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
Cloudforms Team: | --- | Target Upstream Version: | |||||||
Embargoed: | |||||||||
Bug Depends On: | |||||||||
Bug Blocks: | 172490 | ||||||||
Attachments: |
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Description
Steve
2006-09-26 03:16:34 UTC
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 on. We appreciate the time you took to report this issue and want to make sure no important bugs slip through the cracks. If you're currently running a version of Fedora Core between 1 and 6, please note that Fedora no longer maintains these releases. We strongly encourage you to upgrade to a current Fedora release. In order to refocus our efforts as a project we are flagging all of the open bugs for releases which are no longer maintained and closing them. http://fedoraproject.org/wiki/LifeCycle/EOL If this bug is still open against Fedora Core 1 through 6, thirty days from now, it will be closed 'WONTFIX'. If you can reporduce this bug in the latest Fedora version, please change to the respective version. If you are unable to do this, please add a comment to this bug requesting the change. Thanks for your help, and we apologize again that we haven't handled these issues to this point. The process we are following is outlined here: http://fedoraproject.org/wiki/BugZappers/F9CleanUp We will be following the process here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping to ensure this doesn't happen again. And if you'd like to join the bug triage team to help make things better, check out http://fedoraproject.org/wiki/BugZappers This bug is open for a Fedora version that is no longer maintained and will not be fixed by Fedora. Therefore we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen thus bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed. |