This bug report was marked as Incomplete and has not had any updated
comments for quite some time. As a result this bug is being closed.
Please reopen if this is still an issue in the current Ubuntu release
http://www.ubuntu.com/getubuntu/download . Also, please be sure to
provide any requested in
Happens also for with Macbook2,1 and latest Karmic upgraded to 20091016
(2.6.31-14)
Computer is very very very slow when doing I/O (basically bloated even
when copying some files)
uname -a:
Linux x 2.6.31-14-generic #47-Ubuntu SMP Thu Oct 15 02:08:08 UTC 2009 i686
GNU/Linux
dmesg:
[0.8
I am having the same issue on my macbook. 9.04 beta is using the
ata_piix driver instead of the AHCI driver. As others mentioned earlier
in this thread, the problem seems to be that the Apple bios emulator
puts the controler into legacy mode (for which the ata_piix probably is
the correct driver).
I just had an opportunity to upgrade from 8.10 to 9.04 Beta on my Mac
Pro (actually did an installation to a new disk, not an upgrade), and
the kernel that came with it (2.6.28-11-generic) still has this problem:
piix is used instead of AHCI, and the drive is pretty slow.
--
ata_piix used instead
The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the
upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would
appreciate it if you could please test this newer 2.6.27 Ubuntu kernel.
There are one of two ways you should be able to test:
1) If you are comfortable
Christian Kellner wrote:
> There exists a work-around by patching grub stage1. Find the patch and
> the binary here: http://boeglin.org/blog/. I did it here and its working
> like a charm.
This is a neat hack. If I get a morning or afternoon clear (with a boot
disc handy), I might try it. I hack
There exists a work-around by patching grub stage1. Find the patch and
the binary here: http://boeglin.org/blog/. I did it here and its working
like a charm.
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ata_piix used instead of AHCI for Mac Pro
https://bugs.launchpad.net/bugs/96692
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I have a sata based dvdrom on the only available sata port and of course
it is one of the ports that don't work due to that bug, so my DVD drive
is not recognized due to that bug. /-:
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Matthew Garrett wrote:
> Just adding the ID to ahci.c would break a large number of other
> machines, so while easy it's not possible.
I spent a few hours one day trying to reprogram the controller using
setpci from initramfs and didn't have any luck. It appeared that once
the controller had its
Just adding the ID to ahci.c would break a large number of other
machines, so while easy it's not possible.
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Bugs, which is the bug contact for U
Matthew Garrett wrote:
> The firmware programs the sata controller into piix mode, not ahci mode.
> On this specific hardware, the ahci driver is able to reprogram it -
> however, that isn't guaranteed in general, and attempts to do so have
> led to unfortunate behaviour like missing CD drives. Rig
The firmware programs the sata controller into piix mode, not ahci mode.
On this specific hardware, the ahci driver is able to reprogram it -
however, that isn't guaranteed in general, and attempts to do so have
led to unfortunate behaviour like missing CD drives. Right now, the
easiest thing to do
Stephen Touset wrote:
> Has this been fixed?
>
> It was reported that there was a patch in testing, but I've seen no
> activity since. This seems to still be in Gutsy.
The bug is still present in Gutsy as of a previous beta (I'm about 2
months out-of-date). I can retest this week with the latest
Has this been fixed?
It was reported that there was a patch in testing, but I've seen no
activity since. This seems to still be in Gutsy.
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Bugs,
Same problem/bug/feature found on Supermicro's X7DBE+ motherboard: the Intel
ESB2 IDE+SATA controller gets the ata_piix driver instead of the ahci driver
under Fiesty (Ubuntu kernel 2.6.20-15-generic). On top of making the IDE
controller flaky, this removes 1/3 of the SATA controller: the ata_
Christian Kellner wrote:
> This is acutally a dup of bug 64433 I filed a while ago. I am pretty
> sure it was fixed at some point but is now back again. The slow disk
> speed is damn annoying.
I have only tracked Feisty for about two weeks, and my drives performed
great with Edgy and 2.6.17. Actu
Can you please post the "lspci -vvnn" from feisty so we can see what the
device is claiming to be?
Cheers,
Kyle
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Patch in testing to fix this issue.
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New Intel IDs aren't being added to ahci because ahci controllers have
their own PCI class ID (0x010601) which ahci can key off. Apple seem to
have declined to program yours as an ahci device - it's still claiming
to be an IDE device (0x0101), and so ata_piix is the correct driver to
be using.
Of
00:1f.1 IDE interface [0101]: Intel Corporation 631xESB/632xESB IDE Controller
[8086:269e] (rev 09) (prog-if 8f [Master SecP SecO PriP PriO])
Subsystem: Intel Corporation Unknown device [8086:7270]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping-
I'm not sure if the combined mode stuff even applies for the Mac Pro's
IDE controller. I read about the patch that added the ID to the AHCI
chipsets, but I didn't test it. Now that you've confirmed it works (or
worked), the best fix would be to add the ID to the Feisty kernel.
** Attachment add
Sure. Here you go!
** Attachment added: "lspci on a MacPro on feisty (2.6.20)"
http://librarian.launchpad.net/7036057/lspci.txt
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** Changed in: linux-source-2.6.20 (Ubuntu)
Assignee: (unassigned) => Kyle McMartin
Status: Unconfirmed => Needs Info
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You mentioned something about combined mode issue and that might be
fixed upstream? Do you have any details or pointers? The fix that I did
for 2.6.17 and that got committed (see bug 64433) was to add the ID to
the list of ahci chipsets. I looked and that id is still missing
upstream (2.6.21-rc4).
This is acutally a dup of bug 64433 I filed a while ago. I am pretty
sure it was fixed at some point but is now back again. The slow disk
speed is damn annoying.
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** Attachment added: "dmesg from edgy (using ahci)"
http://librarian.launchpad.net/6988631/edgy-ahci
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** Attachment added: "dmesg from feisty (using piix)"
http://librarian.launchpad.net/6988633/feisty-piix
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