Re: [Xen-users] asus P5B Delux not booting xen (ACPI problem?)

["Peter Braun" <xenware@xxxxxxxxx>]

I got working Xen 3.1 @ Debian Etch following the howtoforge tutorial
on P5B Deluxe and was not facing such problem. Latest Bios - 6GB RAM -
memory remaping enabled.

Do you use 32bit or 64bit?

In 32bit PAE w/o any problem - running both PV and FV guests.
Everything works fine.
In 64bit am still facing some slowdown - this problem is heavy
discussed on internet. Looks like its problem by design of the i965.
This slowdown only occures when more than 2GB is installed and trying
to run under 64bit.

XenExpress is running w/o problem - easy install and HVM W2k3 server
guests are blazing fast because of PV drivers included.

According to the info of Steve Brueckner:

I have to disagree with you statement about Xen and i965 based motherboards.

Am running rock stable Gentoo 32bit Xen 3.04 with 2.6.16 server based
on Intel 965 motherboard. No stability nor speed isuess. Custom made
dom0 kernel. SW raid, LVM, SATA is running in AHCI. Only problem was
installation when I had to use CD-ROM connected via USB - minor
problem for me. From the install there is no need for CD-ROM

I am planning next with Xen 3.1 and question is which chipset. Intel
965 is facing problems with 4GB and more RAM under 64bit OS in booth
Linux and Windows. I dont have tested i3000 based server motherboard
yet and in question comes also brand new P35 chipset. Does anybody
have some experience with them?


Peter



2007/6/21, Steve Brueckner <steve@xxxxxxxxxxxxxx>:
> It's a common problem with Xen that it doesn't support new hardware (e.g.,
> 965 boards) very well.  This is because Xen is based on older vanilla kernel
> versions and 965 support requires a >2.6.19 vanilla kernel or else
> distro-specific drivers.  Furthermore, there is no easy way to upgrade the
> Xen kernels.  I had the same problem as you, although I use Fedora instead
> of Debian.  It's great that you're able to solve your problem using an older
> version of Xen incorporated in Debian's packages.
>
> I'm just commenting in this thread to make some noise about the problem.
> I'm hoping Xen will release a 3.1 version with a newer kernel, or else make
> it easier for users to upgrade their own kernels.
>
> Steve Brueckner, ATC-NY
>
> -----Original Message-----
> From: Chris Fanning [mailto:christopher.fanning@xxxxxxxxx]
> Sent: Thursday, June 21, 2007 6:24 AM
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] asus P5B Delux not booting xen (ACPI problem?)
>
> Hi,
>
> I'm going crazy trying to get Xen running on an ASUS P5B Delux (latest BIOS
> installed).
>
> I've tried xen-3.0.4 and xen-3.1.0 (both compiled from source)
>
> The boot process stalls with
> ACP: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (low level) -> IRQ 18
> ahci: 0000:00:1f.2: AHCI 0001.0100 32 slots 6 ports ? Gbps 0x3f impl SATA
> mode
> ahci: 0000:00:1f.2: flags: 64bit ilck stag led pmp pio
> ata1: SATA max UDMA/133 cmd 0xE102E900 ctl 0x0 bmdma 0x0 irq 18
> ata2: SATA max UDMA/133 cmd 0xE102E980 ctl 0x0 bmdma 0x0 irq 18
> ata1: port is slow to resond, please be patient
> ata1: failes to respond (30 secs)
> scsi0 :ahci
> ata2: port is slow to resond, please be patient
> ata2: failes to respond (30 secs)
>
> booting xen-3.1.0 adds some more info to the failure:
> ata1: SATA link up 3,0 Gpb (SStatus 123 Scontrol 200)
> ata1: qc timeout (cmd 0xec)
> ata1: failed to identify (I/0 error, err_mask = 0x0104)
> ata1: port is slow to resond, please be patient
> ata1: failes to respond (30 secs)
> ata1: COMRESET failed, device not ready
> ata1: hardreset failded
>
> But this doesn't always happen. 50% of the time, the process stalls for
> about 6 secs on
> ACP: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (low level) -> IRQ 18 And then
> continues correctly.
>
> I've tried passing acpi=off to the kernel but this results in ExtINT not
> setpup in hardware but reported by MP table.
>
> When I boot this machine with vanilla debian etch, there are no problems.
>
> Any ideas?
> Thanks.
> Chris.
>
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