Re: domU guest for xcp 0.1.1

[Ritu kaur <ritu.kaur.us@gmail.com>]

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Our technical guru/consultant suggested to check if backporting
fixes(changes for shared interrupts) into 2.6.27 XCP source is feasible? i.e


XCP 2.6.27 source + fix(es) for shared interrupts = pci-passthrough work
seamlessly

If it is possible do let me know and pointer to the changes would be helpful
as well.

Thanks

On Tue, Apr 6, 2010 at 6:31 AM, Ritu kaur <ritu.kaur.us@gmail.com> wrote:

> Thanks Pasi. When will new xcp with 2.6.32 kernel be released?
>
> Replies inline...
>
> On Mon, Apr 5, 2010 at 11:03 PM, Pasi Kärkkäinen <pasik@iki.fi> wrote:
>
>> On Mon, Apr 05, 2010 at 09:00:59PM -0700, Ritu kaur wrote:
>> >    Thanks Konrad.
>> >
>> >    I downloaded new code and still doesn't work(albeit different
>> problem). I
>> >    will enumerate them below
>> >
>> >    (Please note 1, 2 and 3 are seen with old xen/next as well). What
>> seemed
>> >    simple testing of pci passthrough via config changes doesn't seem to
>> be
>> >    the case.
>> >
>> >    1. mkinitrd doesn't work in xcp ddk. I get below errors
>> >
>> >    mkinitrd -f ./initrd-2.6.32.ing 2.6.32
>> >    modinfo: could not find module ide-disk
>> >    No module ide-disk found for kernel 2.6.32, aborting.
>> >
>>
>> Did you install the modules after you compiled the kernel?
>> Did you run "depmod -a <kernelversion>" ?
>>
>>
> yes I have done it and still the same problem.
>
>
>>  >    I copied ide-disk.ko from
>> >
>>  /lib/modules/2.6.27.42-0.1.1.xs0.1.1.737.1065xen/kernel/drivers/ide/ide-disk.ko(just
>> >    to check what other errors arise from mkinitrd in xcp ddk), I get
>> >
>>
>> You can't modules from a different kernel version!!!
>>
>>
> I understand that. Just want to check what additional problems arise.
>
>
>>  >    mkinitrd -f ./initrd-2.6.32.ing 2.6.32
>> >    modinfo: could not find module ide-disk
>> >    modinfo: could not find module dm-mem-cache
>> >    modinfo: could not find module dm-message
>> >    modinfo: could not find module dm-raid45
>> >
>>
>> Looks like you didn't install the modules from the new kernel.
>>
>
> I have installed modules via "make modules_install" and depmod as well.
>
>
>>
>> >    2. Looked into .config I have(generated via make menuconfig) and
>> there
>> >    isn't anything on IDEDISK. I cross checked config file that comes
>> with xcp
>> >    source code it has
>> >    ...
>> >    CONFIG_BLK_DEV_IDEDISK=m
>> >    CONFIG_IDEDISK_MULTI_MODE=y
>> >    ...
>> >
>>
>> XCP default kernel is 2.6.27. You're trying to use 2.6.32.
>> There might have been changes between the kernel versions.
>>
>> >    I copied above configs into my .config and when I run make(it asks
>> some
>> >    IDE config related questions ) and these configs are deleted after
>> that. I
>> >    have tried all options "y/n/m" to the questions and same result.
>> >
>> >    3. I downloaded .config file from
>> >    [1]
>> http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.32.10-pvops-dom0-xen-stable-x86_32
>> >
>> >    there isn't IDEDISK config in it either and in addition "make
>> tar-pkg"
>> >    doesn't work with this .config file. I get following errors
>> >
>>
>> If ide-disk module is not used/required anymore in 2.6.32, then you should
>> remove it from /etc/modprobe.conf so that mkinitrd doesn't try to include
>> it!
>>
>> (replace it with the proper new module name).
>>
>> >    DEPMOD  2.6.32
>> >
>> >    /bin/sh: line 1:  3341 Killed                  /sbin/depmod -ae -F
>> >    System.map -b /root/kernel/linux-2.6.32/tar-install 2.6.32
>> >    make[3]: *** [_modinst_post] Error 137
>> >    make[2]: *** [sub-make] Error 2
>> >    make[1]: *** [tar-pkg] Error 2
>> >    make: *** [tar-pkg] Error 2
>> >
>> >    4. I tried with the vmlinuz and initrd image built from "2" above(I
>> know
>> >    initrd image is not correct, I just wanted to try) and I get
>> >
>> >    [0.000000] ERROR: Unable to locate IOAPIC for GSI 2
>> >    [0.000000] ERROR: Unable to locate IOAPIC for GSI 9
>> >    [0.000000] ERROR: Unable to locate IOAPIC for GSI 2
>> >    [0.000000] ERROR: Unable to locate IOAPIC for GSI 9
>> >    [0.493572] registering netback
>> >    Red Hat nash version 5.1.19.6 starting
>> >    einsmod: error inserting 'lib/ide-disk.ko': -1 Invalid module format
>> >
>>
>> "Invalid module format" means it's from a different kernel and cannot be
>> used with this kernel.
>>
>> >    indmos: error inserting '/lib/dm-region-hash.ko': -1 File Exists
>> >    mount: could not fine filesystem '/dev/root'
>> >    setuproot: moving /dev failed: No such file or directory
>> >    setuproot: error mounting /proc: No such file or directory
>> >    setuproot: error mounting /sys: No such file or directory
>> >    switchroot: mount failed: No such file or directory
>> >    [0.905987] Kernel panic - not syncing: Attempted to kill init!
>> >
>> >    Let me know how to proceed on this.
>> >
>>
>> Install for example Fedora 12, or any other distro that has 2.6.32 kernel
>> as a default, and check which modules are used for your hardware,
>> then replace "ide-disk" in modprobe.conf with the actual module.
>>
>
> Will look into it.
>
> Thanks
>
>>
>> -- Pasi
>>
>>
>> >    Thanks
>> >
>> >    On Mon, Apr 5, 2010 at 10:00 AM, Konrad Rzeszutek Wilk
>> >    <[2]konrad.wilk@oracle.com> wrote:
>> >
>> >      On Mon, Apr 05, 2010 at 07:10:22AM -0700, Ritu kaur wrote:
>> >      > Hello,
>> >      >
>> >      > Any inputs folks on xen debugs provided? dom0 crashes when
>>  xen/next
>> >      kernel
>> >
>> >      What you are hitting should have been fixed a week ago. Are you up
>> to
>> >      the latest in xen/next? Did you do 'git pull' ? Do you see this as
>> the
>> >      latest when you do 'git log | head':
>> >
>> >       git log | head -5
>> >      commit 900f6d725874ca97c21cdc5a2c4e05bd62db4e86
>> >      Merge: f2530fa 89689b1
>> >      Author: Jeremy Fitzhardinge <[3]jeremy.fitzhardinge@citrix.com>
>> >      Date:   Thu Apr 1 14:24:30 2010 -0700
>> >
>> > References
>> >
>> >    Visible links
>> >    1.
>> http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.32.10-pvops-dom0-xen-stable-x86_32
>> >    2. mailto:konrad.wilk@oracle.com
>> >    3. mailto:jeremy.fitzhardinge@citrix.com
>>
>> > _______________________________________________
>> > Xen-devel mailing list
>> > Xen-devel@lists.xensource.com
>> > http://lists.xensource.com/xen-devel
>>
>>
>

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