* RE: Possible regression of LBA48 support for piix
[not found] ` <19241.63911.160765.909812@pilspetsen.it.uu.se>
@ 2009-12-17 10:04 ` Romain Kubany
2009-12-17 11:03 ` Jeff Garzik
0 siblings, 1 reply; 9+ messages in thread
From: Romain Kubany @ 2009-12-17 10:04 UTC (permalink / raw)
To: Mikael Pettersson; +Cc: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org
Ok, thanks for the prompt reply and the notice for the cc: :)
I'm using libata and ata_piix now.
My disk is seen as "sda" and a lshw is reporting the controler as using "ata_piix" :
# lshw -c STORAGE
*-ide
description: IDE interface
product: 82371AB/EB/MB PIIX4 IDE
vendor: Intel Corporation
physical id: 7.1
bus info: pci@0000:00:07.1
logical name: scsi0
logical name: scsi1
version: 01
width: 32 bits
clock: 33MHz
capabilities: ide bus_master emulated
configuration: driver=ata_piix latency=0
But fdisk always recognize the disk as 136.8Gb :
# fdisk -l
Disk /dev/sda: 136.8 GB, 136899993600 bytes
16 heads, 63 sectors/track, 265260 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Disk identifier: 0xd7267427
Device Boot Start End Blocks Id System
/dev/sda1 * 1 204 102815+ 83 Linux
/dev/sda2 205 2236 1024128 82 Linux swap / Solaris
/dev/sda3 2237 20805 9358776 83 Linux
Here is the new kernel config file : http://pastebin.com/f65fd472b
-----Message d'origine-----
De : linux-kernel-owner@vger.kernel.org [mailto:linux-kernel-owner@vger.kernel.org] De la part de Mikael Pettersson
Envoyé : jeudi 17 décembre 2009 10:28
À : Romain Kubany
Cc : linux-kernel@vger.kernel.org
Objet : Re: Possible regression of LBA48 support for piix
Romain Kubany writes:
> Hello,
>
> We are using Microsoft Hyper-V Virtualization technology for some of our GNU/Linux guests and we recently discovered
> that the emulated hardware does not seem to support LBA48 adressing on IDE controller.
>
> After some tests, here are the results on a VM with a 200GB virtual disk : disk is detected as 214748MB up to kernel 2.6.27.41 and as 136899MB in 2.6.28 and up.
>
> The two kernels (2.6.27.41 and 2.6.28) were compiled with approximatively the same parameters (just an oldconfig between them, I'll paste a line to their respective config at the end of the mail)
> except that many changes occured in IDE management between 2.6.27 and 2.6.28 series of the kernel so it is possible that the problem is coming from a misconfiguration on our side (in which case I'll present you my truthful apologies for making you waste your time).
>
> Here are some useful informations (I think) for start :
>
> [On the "working" kernel, 2.6.27.41 w/ 200GB recognized vdisk]
>
> # hdparm -I /dev/hda
Try using libata and ata_piix instead of the old IDE drivers, but
be aware that the disk will show up as /dev/sda not /dev/hda.
Also, IDE/ATA-related issues should be cc:d to linux-ide (see MAINTAINERS).
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: Possible regression of LBA48 support for piix
2009-12-17 10:04 ` Possible regression of LBA48 support for piix Romain Kubany
@ 2009-12-17 11:03 ` Jeff Garzik
2009-12-17 11:34 ` Romain Kubany
2009-12-17 12:05 ` Jeff Garzik
0 siblings, 2 replies; 9+ messages in thread
From: Jeff Garzik @ 2009-12-17 11:03 UTC (permalink / raw)
To: Romain Kubany
Cc: Mikael Pettersson, linux-kernel@vger.kernel.org,
linux-ide@vger.kernel.org
On 12/17/2009 05:04 AM, Romain Kubany wrote:
> Ok, thanks for the prompt reply and the notice for the cc: :)
> I'm using libata and ata_piix now.
> My disk is seen as "sda" and a lshw is reporting the controler as using "ata_piix" :
>
> # lshw -c STORAGE
> *-ide
> description: IDE interface
> product: 82371AB/EB/MB PIIX4 IDE
> vendor: Intel Corporation
> physical id: 7.1
> bus info: pci@0000:00:07.1
> logical name: scsi0
> logical name: scsi1
> version: 01
> width: 32 bits
> clock: 33MHz
> capabilities: ide bus_master emulated
> configuration: driver=ata_piix latency=0
>
> But fdisk always recognize the disk as 136.8Gb :
>
> # fdisk -l
>
> Disk /dev/sda: 136.8 GB, 136899993600 bytes
> 16 heads, 63 sectors/track, 265260 cylinders
> Units = cylinders of 1008 * 512 = 516096 bytes
> Disk identifier: 0xd7267427
>
> Device Boot Start End Blocks Id System
> /dev/sda1 * 1 204 102815+ 83 Linux
> /dev/sda2 205 2236 1024128 82 Linux swap / Solaris
> /dev/sda3 2237 20805 9358776 83 Linux
>
> Here is the new kernel config file : http://pastebin.com/f65fd472b
I would definitely be interested in seeing the 'dmesg' output for
libata, and results from a more recent kernel.
Jeff
^ permalink raw reply [flat|nested] 9+ messages in thread
* RE: Possible regression of LBA48 support for piix
2009-12-17 11:03 ` Jeff Garzik
@ 2009-12-17 11:34 ` Romain Kubany
2009-12-17 12:02 ` Jeff Garzik
2009-12-17 12:05 ` Jeff Garzik
1 sibling, 1 reply; 9+ messages in thread
From: Romain Kubany @ 2009-12-17 11:34 UTC (permalink / raw)
To: Jeff Garzik
Cc: Mikael Pettersson, linux-kernel@vger.kernel.org,
linux-ide@vger.kernel.org
Thanks for your concern. :)
Here is the full dmesg output : http://pastebin.com/f484004a5 (2.6.28 with same config as in my previous mail)
I'm going to test a 2.6.32.1 kernel and similar config
-----Message d'origine-----
De : linux-kernel-owner@vger.kernel.org [mailto:linux-kernel-owner@vger.kernel.org] De la part de Jeff Garzik
Envoyé : jeudi 17 décembre 2009 12:04
À : Romain Kubany
Cc : Mikael Pettersson; linux-kernel@vger.kernel.org; linux-ide@vger.kernel.org
Objet : Re: Possible regression of LBA48 support for piix
On 12/17/2009 05:04 AM, Romain Kubany wrote:
> Ok, thanks for the prompt reply and the notice for the cc: :)
> I'm using libata and ata_piix now.
> My disk is seen as "sda" and a lshw is reporting the controler as using "ata_piix" :
>
> # lshw -c STORAGE
> *-ide
> description: IDE interface
> product: 82371AB/EB/MB PIIX4 IDE
> vendor: Intel Corporation
> physical id: 7.1
> bus info: pci@0000:00:07.1
> logical name: scsi0
> logical name: scsi1
> version: 01
> width: 32 bits
> clock: 33MHz
> capabilities: ide bus_master emulated
> configuration: driver=ata_piix latency=0
>
> But fdisk always recognize the disk as 136.8Gb :
>
> # fdisk -l
>
> Disk /dev/sda: 136.8 GB, 136899993600 bytes
> 16 heads, 63 sectors/track, 265260 cylinders
> Units = cylinders of 1008 * 512 = 516096 bytes
> Disk identifier: 0xd7267427
>
> Device Boot Start End Blocks Id System
> /dev/sda1 * 1 204 102815+ 83 Linux
> /dev/sda2 205 2236 1024128 82 Linux swap / Solaris
> /dev/sda3 2237 20805 9358776 83 Linux
>
> Here is the new kernel config file : http://pastebin.com/f65fd472b
I would definitely be interested in seeing the 'dmesg' output for
libata, and results from a more recent kernel.
Jeff
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: Possible regression of LBA48 support for piix
2009-12-17 11:34 ` Romain Kubany
@ 2009-12-17 12:02 ` Jeff Garzik
0 siblings, 0 replies; 9+ messages in thread
From: Jeff Garzik @ 2009-12-17 12:02 UTC (permalink / raw)
To: Romain Kubany
Cc: Mikael Pettersson, linux-kernel@vger.kernel.org,
linux-ide@vger.kernel.org
On 12/17/2009 06:34 AM, Romain Kubany wrote:
> Thanks for your concern. :)
>
> Here is the full dmesg output : http://pastebin.com/f484004a5 (2.6.28 with same config as in my previous mail)
>
> I'm going to test a 2.6.32.1 kernel and similar config
[ 0.804002] ata1.00: ATA-0: Virtual HD, 1.1.0, max MWDMA2
[ 0.804002] ata1.00: 267382800 sectors, multi 128: LBA
For starters, the virtual disk is reporting ATA version 0. That means
the disk is telling us it does not support LBA48 or other advanced
features. libata (and probably IDE, too) happily obliges.
That sounds like either a broken emulation, or some information returned
from the virtual disk got zeroed somehow.
Jeff
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: Possible regression of LBA48 support for piix
2009-12-17 11:03 ` Jeff Garzik
2009-12-17 11:34 ` Romain Kubany
@ 2009-12-17 12:05 ` Jeff Garzik
2009-12-17 12:07 ` Romain Kubany
1 sibling, 1 reply; 9+ messages in thread
From: Jeff Garzik @ 2009-12-17 12:05 UTC (permalink / raw)
To: Romain Kubany
Cc: Mikael Pettersson, linux-kernel@vger.kernel.org,
linux-ide@vger.kernel.org
On 12/17/2009 06:03 AM, Jeff Garzik wrote:
> On 12/17/2009 05:04 AM, Romain Kubany wrote:
>> Here is the new kernel config file : http://pastebin.com/f65fd472b
>
> I would definitely be interested in seeing the 'dmesg' output for
> libata, and results from a more recent kernel.
Also, what does 'hdparm -I /dev/XXXX' output look like?
Jeff
^ permalink raw reply [flat|nested] 9+ messages in thread
* RE: Possible regression of LBA48 support for piix
2009-12-17 12:05 ` Jeff Garzik
@ 2009-12-17 12:07 ` Romain Kubany
2009-12-17 12:22 ` Jeff Garzik
0 siblings, 1 reply; 9+ messages in thread
From: Romain Kubany @ 2009-12-17 12:07 UTC (permalink / raw)
To: Jeff Garzik
Cc: Mikael Pettersson, linux-kernel@vger.kernel.org,
linux-ide@vger.kernel.org
Here it is under the 2.6.28 :
# hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: Virtual HD
Serial Number:
Firmware Revision: 1.1.0
Standards:
Likely used: 2
Configuration:
Logical max current
cylinders 16383 65535
heads 16 16
sectors/track 63 255
--
bytes/track: 65024 bytes/sector: 512
CHS current addressable sectors: 267382800
LBA user addressable sectors: 267382800
device size with M = 1024*1024: 130558 MBytes
device size with M = 1000*1000: 136899 MBytes (136 GB)
Capabilities:
LBA, IORDY(can be disabled)
Buffer size: 64.0kB
Standby timer values: spec'd by Vendor
R/W multiple sector transfer: Max = 128 Current = 128
DMA: sdma0 sdma1 sdma2 mdma0 mdma1 *mdma2
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=333ns IORDY flow control=120ns
-----Message d'origine-----
De : Jeff Garzik [mailto:jgpobox@gmail.com] De la part de Jeff Garzik
Envoyé : jeudi 17 décembre 2009 13:06
À : Romain Kubany
Cc : Mikael Pettersson; linux-kernel@vger.kernel.org; linux-ide@vger.kernel.org
Objet : Re: Possible regression of LBA48 support for piix
On 12/17/2009 06:03 AM, Jeff Garzik wrote:
> On 12/17/2009 05:04 AM, Romain Kubany wrote:
>> Here is the new kernel config file : http://pastebin.com/f65fd472b
>
> I would definitely be interested in seeing the 'dmesg' output for
> libata, and results from a more recent kernel.
Also, what does 'hdparm -I /dev/XXXX' output look like?
Jeff
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: Possible regression of LBA48 support for piix
2009-12-17 12:07 ` Romain Kubany
@ 2009-12-17 12:22 ` Jeff Garzik
2009-12-17 13:33 ` Bartlomiej Zolnierkiewicz
0 siblings, 1 reply; 9+ messages in thread
From: Jeff Garzik @ 2009-12-17 12:22 UTC (permalink / raw)
To: Romain Kubany
Cc: Mikael Pettersson, linux-kernel@vger.kernel.org,
linux-ide@vger.kernel.org
On 12/17/2009 07:07 AM, Romain Kubany wrote:
> Here it is under the 2.6.28 :
>
> # hdparm -I /dev/sda
>
> /dev/sda:
>
> ATA device, with non-removable media
> Model Number: Virtual HD
> Serial Number:
> Firmware Revision: 1.1.0
> Standards:
> Likely used: 2
> Configuration:
> Logical max current
> cylinders 16383 65535
> heads 16 16
> sectors/track 63 255
> --
> bytes/track: 65024 bytes/sector: 512
> CHS current addressable sectors: 267382800
> LBA user addressable sectors: 267382800
> device size with M = 1024*1024: 130558 MBytes
> device size with M = 1000*1000: 136899 MBytes (136 GB)
Yeah, that info is straight from the virtual disk, without any sort of
massaging. The disk is reporting 136GB max, so I would poke around
Windows to see if a setting changed somewhere... maybe there is an "old
IDE compatible" setting that got turned on, for the virtual hd?
Jeff
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: Possible regression of LBA48 support for piix
2009-12-17 12:22 ` Jeff Garzik
@ 2009-12-17 13:33 ` Bartlomiej Zolnierkiewicz
2009-12-18 13:36 ` Romain Kubany
0 siblings, 1 reply; 9+ messages in thread
From: Bartlomiej Zolnierkiewicz @ 2009-12-17 13:33 UTC (permalink / raw)
To: Jeff Garzik
Cc: Romain Kubany, Mikael Pettersson, linux-kernel@vger.kernel.org,
linux-ide@vger.kernel.org
On Thursday 17 December 2009 01:22:22 pm Jeff Garzik wrote:
> On 12/17/2009 07:07 AM, Romain Kubany wrote:
> > Here it is under the 2.6.28 :
> >
> > # hdparm -I /dev/sda
> >
> > /dev/sda:
> >
> > ATA device, with non-removable media
> > Model Number: Virtual HD
> > Serial Number:
> > Firmware Revision: 1.1.0
> > Standards:
> > Likely used: 2
> > Configuration:
> > Logical max current
> > cylinders 16383 65535
> > heads 16 16
> > sectors/track 63 255
> > --
> > bytes/track: 65024 bytes/sector: 512
> > CHS current addressable sectors: 267382800
> > LBA user addressable sectors: 267382800
> > device size with M = 1024*1024: 130558 MBytes
> > device size with M = 1000*1000: 136899 MBytes (136 GB)
>
> Yeah, that info is straight from the virtual disk, without any sort of
> massaging. The disk is reporting 136GB max, so I would poke around
> Windows to see if a setting changed somewhere... maybe there is an "old
> IDE compatible" setting that got turned on, for the virtual hd?
It is also possible that this virtual disk has never worked with ata_piix
driver and worked with piix driver in the older kernels because of pure luck.
In 2.6.28 I've fixed LBA48 checks in IDE to match libata (see commit 942dcd8
for details) so it would be worth to try:
- simulating the older buggy IDE behavior with 2.6.32 kernel
or
- staring long enough at 'hdparm --Istdout /dev/sda' output
first.
--
Bartlomiej Zolnierkiewicz
^ permalink raw reply [flat|nested] 9+ messages in thread
* RE: Possible regression of LBA48 support for piix
2009-12-17 13:33 ` Bartlomiej Zolnierkiewicz
@ 2009-12-18 13:36 ` Romain Kubany
0 siblings, 0 replies; 9+ messages in thread
From: Romain Kubany @ 2009-12-18 13:36 UTC (permalink / raw)
To: Bartlomiej Zolnierkiewicz, Jeff Garzik
Cc: Mikael Pettersson, linux-kernel@vger.kernel.org,
linux-ide@vger.kernel.org
Hello
Sorry, some kind of emergency occured and I didn't had the time to answer your mails
Jeff : No change were made to the VM configuration between the two kernel (2.6.27.41 & 2.6.28) so it is unlikely the disk himself or the VM configuration which are provoking this behavior.
Also, not this virtual machine in particular but others (with the same hardware configuration) are running Windows 2003/2008 without that limitation to 136Gb.
Bartlomiej : Ok, here is the dmesg of a 2.6.32.1 (http://pastebin.com/f3645803b ) and here is the output of a 'hdparm --Istdout /dev/sda' (under 2.6.32) as you suggested :
# hdparm --Istdout /dev/sda
/dev/sda:
045a 3fff 0000 0010 fe00 0200 003f abcd
dcba 0123 2020 2020 2020 2020 2020 2020
2020 2020 2020 2020 0003 0080 0000 312e
312e 3020 2020 5669 7274 7561 6c20 4844
2020 2020 2020 2020 2020 2020 2020 2020
2020 2020 2020 2020 2020 2020 2020 8080
0000 0f00 0000 0200 0200 0003 ffff 0010
00ff f010 0fef 0180 f010 0fef 0007 0407
0003 0078 0078 014d 0078 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0400 0000 0000 0400 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 1900 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
-----Message d'origine-----
De : linux-kernel-owner@vger.kernel.org [mailto:linux-kernel-owner@vger.kernel.org] De la part de Bartlomiej Zolnierkiewicz
Envoyé : jeudi 17 décembre 2009 14:34
À : Jeff Garzik
Cc : Romain Kubany; Mikael Pettersson; linux-kernel@vger.kernel.org; linux-ide@vger.kernel.org
Objet : Re: Possible regression of LBA48 support for piix
On Thursday 17 December 2009 01:22:22 pm Jeff Garzik wrote:
> On 12/17/2009 07:07 AM, Romain Kubany wrote:
> > Here it is under the 2.6.28 :
> >
> > # hdparm -I /dev/sda
> >
> > /dev/sda:
> >
> > ATA device, with non-removable media
> > Model Number: Virtual HD
> > Serial Number:
> > Firmware Revision: 1.1.0
> > Standards:
> > Likely used: 2
> > Configuration:
> > Logical max current
> > cylinders 16383 65535
> > heads 16 16
> > sectors/track 63 255
> > --
> > bytes/track: 65024 bytes/sector: 512
> > CHS current addressable sectors: 267382800
> > LBA user addressable sectors: 267382800
> > device size with M = 1024*1024: 130558 MBytes
> > device size with M = 1000*1000: 136899 MBytes (136 GB)
>
> Yeah, that info is straight from the virtual disk, without any sort of
> massaging. The disk is reporting 136GB max, so I would poke around
> Windows to see if a setting changed somewhere... maybe there is an "old
> IDE compatible" setting that got turned on, for the virtual hd?
It is also possible that this virtual disk has never worked with ata_piix
driver and worked with piix driver in the older kernels because of pure luck.
In 2.6.28 I've fixed LBA48 checks in IDE to match libata (see commit 942dcd8
for details) so it would be worth to try:
- simulating the older buggy IDE behavior with 2.6.32 kernel
or
- staring long enough at 'hdparm --Istdout /dev/sda' output
first.
--
Bartlomiej Zolnierkiewicz
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2009-12-18 13:36 UTC | newest]
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[not found] ` <19241.63911.160765.909812@pilspetsen.it.uu.se>
2009-12-17 10:04 ` Possible regression of LBA48 support for piix Romain Kubany
2009-12-17 11:03 ` Jeff Garzik
2009-12-17 11:34 ` Romain Kubany
2009-12-17 12:02 ` Jeff Garzik
2009-12-17 12:05 ` Jeff Garzik
2009-12-17 12:07 ` Romain Kubany
2009-12-17 12:22 ` Jeff Garzik
2009-12-17 13:33 ` Bartlomiej Zolnierkiewicz
2009-12-18 13:36 ` Romain Kubany
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