Seems to have enough memory on both doms, right?
dom0: MemTotal: 37070980 kB
MemFree: 7246200 kB
dom1: MemTotal: 24190044 kB
MemFree: 23587668 kB
Thanks,
--Larry
On 09/04/2013 05:56 PM, Skidmore, Donald C wrote:
> Hey Larry,
>
> It almost sounds like you are running out of memory, although I have never
> seen that libvirt error myself. Could you verify your VM's has enough memory?
>
> Thanks,
> -Don Skidmore <[email protected]>
>
>
>> -----Original Message-----
>> From: laurence.schuler [mailto:[email protected]]
>> Sent: Wednesday, September 04, 2013 10:22 AM
>> To: Tantilov, Emil S
>> Cc: [email protected]
>> Subject: Re: [E1000-devel] Fwd: libvirt-qemu/kvm passthru w/Intel 82598EB
>>
>> Hi Emil,
>>
>> We are only using the 82598 with the dom1 hosts. They are running Centos
>> 2.6.18-348.12.1 kernel with an updated ixgbe driver v3.17.3 downloaded from
>> the Intel site.
>>
>> We have ixgbe blacklisted on dom0 which is running Centos6 2.6.32-358.18.1
>>
>> I do see a lot of the messages like this in the libvirtd.log:
>> 23210: error : virNetlinkEventCallback:339 : nl_recv returned with
>> error: No buffer space available
>> but I could not find any info on what that might mean, or how to correct.
>>
>> We are seeing the error count increase on the interface (ifconfig eth1 &
>> ethtool -S) as the ping progresses, but no messages anywhere
>>
>> Thanks!
>> --Larry
>>
>> On 09/03/2013 06:14 PM, Tantilov, Emil S wrote:
>>>> -----Original Message-----
>>>> From: laurence.schuler [mailto:[email protected]]
>>>> Sent: Tuesday, September 03, 2013 1:36 PM
>>>> To: [email protected]
>>>> Subject: [E1000-devel] Fwd: libvirt-qemu/kvm passthru w/Intel 82598EB
>>>>
>>>> Hello,
>>>>
>>>> I am trying to configure two identical systems with the following
>>>> setup.
>>>>
>>>> dom0: Centos 6 OS on Apple Xserve i7 server with PCI cards for 4GB FC
>>>> (LSI FC949ES) and 10GB Ethernet (Intel 82598EB)
>>>>
>>>> dom1: Centos 5 OS with passthru mode of PCI 4GB FC and 10GB Ethernet
>>>> (ixgbe and mptfc blacklisted in dom0)
>>>>
>>>> Everything starts ok, but networking in dom1 using the 10GB interface
>>>> has extremely high rtt w/ping tests (20-30ms avg).
>>> From the description above it seems you are using 82598 interfaces in both
>> dom0 and dom1, but you only see the issue on dom1? If that is the case, are
>> you only seeing the issue when dom1 runs Centos 5? What if you run dom1
>> with Centos 6?
>>> I am not aware of any known issues with respect to passthru mode with
>> qemu. The driver should see and use the network adapter as usual and there
>> should be no special adjustments needed. We can try to reproduce this
>> locally if you could provide some additional information such as the distros
>> and kernel version of the host OS and the kernel versions in the VMs.
>>> Another thing to look at are any errors or warnings in dmesg when you
>> bring the VMs up. Also for the failing interface it is worth taking a look
>> at the
>> stats while passing traffic via ethtool -S as this may give us an idea about
>> what
>> is causing the performance drop.
>>> Thanks,
>>> Emil
>>>
>>
>> --
>> Laurence Schuler (Larry) [email protected]
>> Systems Support ADNET Systems, Inc
>> Scientific Visualization Studio http://svs.gsfc.nasa.gov
>> NASA/Goddard Space Flight Center, Code 606.4 phone: 1-301-286-1799
>> Greenbelt, MD 20771 fax: 1-301-286-1634
>> Note: I am not a government employee and have no authority to obligate
>> any federal, state or local government to perform any action or payment.
>>
>>
>> ------------------------------------------------------------------------------
>> Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more!
>> Discover the easy way to master current and previous Microsoft technologies
>> and advance your career. Get an incredible 1,500+ hours of step-by-step
>> tutorial videos with LearnDevNow. Subscribe today and save!
>> http://pubads.g.doubleclick.net/gampad/clk?id=58040911&iu=/4140/ostg.clk
>> trk
>> _______________________________________________
>> E1000-devel mailing list
>> [email protected]
>> https://lists.sourceforge.net/lists/listinfo/e1000-devel
>> To learn more about Intel® Ethernet, visit
>> http://communities.intel.com/community/wired
------------------------------------------------------------------------------
Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more!
Discover the easy way to master current and previous Microsoft technologies
and advance your career. Get an incredible 1,500+ hours of step-by-step
tutorial videos with LearnDevNow. Subscribe today and save!
http://pubads.g.doubleclick.net/gampad/clk?id=58041391&iu=/4140/ostg.clktrk
_______________________________________________
E1000-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/e1000-devel
To learn more about Intel® Ethernet, visit
http://communities.intel.com/community/wired
