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Date: Wed, 04 May 2011 11:48:25 +0200
From: jdossantos@...s.homelinux.org
To: Hank Janssen <hjanssen@...rosoft.com>
Cc: KY Srinivasan <kys@...rosoft.com>, <linux-kernel@...r.kernel.org>
Subject: Re: Error in Hyper-V modules hv_vmbus
>>
>> > > -----Original Message-----
>> > > From: root@...s.homelinux.org [mailto:root@...s.homelinux.org]
>> > > Sent: Tuesday, May 03, 2011 10:52 AM
>> > > To: KY Srinivasan
>> > > Cc: linux-kernel@...r.kernel.org
>> > > Subject: RE: Error in Hyper-V modules hv_vmbus
>> > >
>> > > On Tue, 3 May 2011 13:42:43 +0000, KY Srinivasan wrote:
>> > > >> -----Original Message-----
>> > > >> From: root [mailto:root@...s.homelinux.org]
>> > > >> Sent: Sunday, May 01, 2011 8:37 AM
>> > > >> To: KY Srinivasan
>> > > >> Cc: linux-kernel@...r.kernel.org
>> > > >> Subject: Re: Error in Hyper-V modules hv_vmbus
>> > > >>
>> > > >> Windows Server Core 2008 R2 with SP2
>> > > >
>> > > > This is a known problem and a fix has been submitted - the
>> patch
>> > > > is yet to be applied though. Once the hv patches that are in
>> the
>> > > > queue are applied, this problem will be fixed. In the interim,
>> if
>> > > > you want an immediate fix, I could send you the patch that
>> will
>> > > > apply against the tree you have.
>> > > >
>> > > > Regards,
>> > > >
>> > > > K. Y
>> > > >>
>> > > >> Regards
>> > > >> Juan Dos Santos
>> > >
>> > > Could You send me the patch? So I can test it, I am using the
>> > > kernel source from
>> > >
>> http://www.kernel.org/pub/linux/kernel/v2.6/testing/linux-2.6.39-rc5
>> > > .t ar.bz2, is the patch compatible with this kernel source?
>> >
>> > This is a very old version of the hyper-V driver code compared to
>> what
>> > is in Greg's tree and looking at the code It does not look like
>> the
>> > problem you are seeing is the problem my patch fixes. We will do
>> some
>> > additional testing and get back to you. It would be very useful if
>> you
>> > can post the dmesg or stack trace that can shed additional light
>> on the
>> problem.
>
> Juan,
>
> I just fixed a few issues in Ubuntu 10.10 that might be similar.
>
> I will spin up a debian system and see if I can reproduce the problem
> and
> submit a patch To fix it.
>
> Hank.
Here is my step by step protocol:
VM configuration:
Host: Windows Server 2008 Core R2 with SP1
Networkcard: Old emulated card
Integratedservices: Shutdown, Timesync, Heartbeat
CPU: 4
Memory: 512 MB
Harddisk: IDE 10 GB
OS Installation:
Debian Squeeze 6.0.1a (2.6.32-5-amd64)
Standard installation without any installation packages
Kernel installation:
aptitude install kernel-package libncurses-dev
cd /usr/src
wget
http://www.kernel.org/pub/linux/kernel/v2.6/testing/linux-2.6.39-rc6.tar.bz2
tar xfvj linux-2.6.39-rc6.tar.bz2
cd linux-2.6.39-rc6/
make clean
make mrproper
cp /boot/config-2.6.32-5-amd64 .config
make menuconfig
{Divice Drivers -> Stagin Drivers -> <M> Microsoft Hyper-V client
drivers}
Here You can find the .config file http://docs.homelinux.org/hv/.config
export CUNCURRENCY_LEVEL=4
make-kpkg --append-to-version "-hyperv" --revision "1" --us --uc
--initrd kernel_image kernel_headers
cd ..
dpkg -i linux-image-2.6.39-rc6-hyperv_1_amd64.deb
linux-headers-2.6.39-rc6-hyperv_1_amd64.deb
ls -l /boot/
total 27640
-rw-r--r-- 1 root root 106088 Mar 8 01:18 config-2.6.32-5-amd64
-rw-r--r-- 1 root root 125214 May 4 11:31 config-2.6.39-rc6-hyperv
drwxr-xr-x 3 root root 4096 May 4 12:56 grub
-rw-r--r-- 1 root root 9095609 May 4 09:10 initrd.img-2.6.32-5-amd64
-rw-r--r-- 1 root root 10388314 May 4 12:56
initrd.img-2.6.39-rc6-hyperv
-rw-r--r-- 1 root root 1662514 Mar 8 01:18 System.map-2.6.32-5-amd64
-rw-r--r-- 1 root root 1839410 May 4 12:52
System.map-2.6.39-rc6-hyperv
-rw-r--r-- 1 root root 2418720 Mar 8 01:12 vmlinuz-2.6.32-5-amd64
-rw-r--r-- 1 root root 2590800 May 4 12:52 vmlinuz-2.6.39-rc6-hyperv
reboot
After the reboot I get the "INFO: task modprobe:307 blocked for more
than 120 seconds." message
and boot is haning for 170 seconds, here are the logs:
http://docs.homelinux.org/hv/syslog
http://docs.homelinux.org/hv/messages
http://docs.homelinux.org/hv/dmesg
lsmod | grep hv_
hv_timesource 1055 0 [permanent]
hv_vmbus 48554 1
In the logs and with lsmod i see the timesource module running, but the
time is not in sync with the windows host.
Shutdown function also dosn't work, seems that nothing of the
integrated components are working..hv_netvsc,hv_blkvsc,hv_storvsc are
not
loaded?! But modinfo provides information:
modinfo hv_vmbus
filename:
/lib/modules/2.6.39-rc6-hyperv/kernel/drivers/staging/hv/hv_vmbus.ko
version: 3.1
license: GPL
srcversion: 334F59AED9605F8C3B7696F
alias: pci:v00001414d00005353sv*sd*bc*sc*i*
alias:
dmi*:svn*MicrosoftCorporation*:pn*VirtualMachine*:rn*VirtualMachine*:
depends:
staging: Y
vermagic: 2.6.39-rc6-hyperv SMP mod_unload modversions
parm: vmbus_irq:int
parm: vmbus_loglevel:int
modinfo hv_timesource
filename:
/lib/modules/2.6.39-rc6-hyperv/kernel/drivers/staging/hv/hv_timesource.ko
license: GPL
author: K. Y. Srinivasan <ksrinivasan@...ell.com>
description: HyperV based clocksource
alias: pci:v00001414d00005353sv*sd*bc*sc*i*
alias:
dmi*:svn*MicrosoftCorporation*:pn*VirtualMachine*:rn*VirtualMachine*:
depends:
staging: Y
vermagic: 2.6.39-rc6-hyperv SMP mod_unload modversions
modinfo hv_netvsc
filename:
/lib/modules/2.6.39-rc6-hyperv/kernel/drivers/staging/hv/hv_netvsc.ko
description: Microsoft Hyper-V network driver
version: 3.1
license: GPL
srcversion: EA7C82EAB799B90B4F6BFA6
alias: pci:v00001414d00005353sv*sd*bc*sc*i*
alias:
dmi*:svn*MicrosoftCorporation*:pn*VirtualMachine*:rn*VirtualMachine*:
depends: hv_vmbus
staging: Y
vermagic: 2.6.39-rc6-hyperv SMP mod_unload modversions
parm: ring_size:Ring buffer size (# of pages) (int)
modinfo hv_storvsc
filename:
/lib/modules/2.6.39-rc6-hyperv/kernel/drivers/staging/hv/hv_storvsc.ko
description: Microsoft Hyper-V virtual storage driver
version: 3.1
license: GPL
srcversion: 23688D30D5A66982D2BB67F
depends: scsi_mod,hv_vmbus
staging: Y
vermagic: 2.6.39-rc6-hyperv SMP mod_unload modversions
parm: storvsc_ringbuffer_size:Ring buffer size (bytes) (int)
modinfo hv_blkvsc
filename:
/lib/modules/2.6.39-rc6-hyperv/kernel/drivers/staging/hv/hv_blkvsc.ko
description: Microsoft Hyper-V virtual block driver
version: 3.1
license: GPL
srcversion: 5B375CF1D6F5581A05B1026
depends: scsi_mod,hv_vmbus
staging: Y
vermagic: 2.6.39-rc6-hyperv SMP mod_unload modversions
parm: blkvsc_ringbuffer_size:int
parm: ring_size:Ring buffer size (in bytes)
After that I enabled the synthetic network card, but also here..it
doesn't work and I don't see any hv_netvsc
module loaded, so I tried to load it "by hand" with modprobe
hv_netvsc..but I get a modprobe timeout and nothing happens..
Can someone repruduce it? Is there a patch for kernel linux-2.6.39-rc6?
Regards
Juan Dos Santos
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