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...ay, had almost no VMs running on it since boot, I booted a single windows test VM which BSOD'ed and then this happened. This is on xen 4.6.6-4.el6 with 4.9.58-29.el6.x86_64. I see these issues across a wide number of systems with from both Dell and Supermicro, although we run the same Intel x540 10gb nic's in each system with the same netapp nfs backend storage. Cheers, Nathan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos-virt/attachments/20171107/97d2bd1a/attachment.html>

...9] e1000e: enp0s25 NIC Link is Down > then the NIC lost its link and bond is just protecting you as you > probably didn't have any downtime due to that. IOW bonding is not the > issue. > > Which NIC do you have on those servers? The mainbord is a supermicro X10DRI-T with Intel X540 Dual port 10GBase-T. regards . G?tz

I have an Intel X540 SR-IOV NIC in a box with ACS support running RHEL6.4. Hi Hongming, I'm hoping you can please help with two issues: 1. The pool works, but I transparent VLAN with the pool does not. I have to manually run "ip" afterwards to get it to work. # virsh net-dumpxml em2net <network con...

...st its link and bond is just protecting you as you >>> probably didn't have any downtime due to that. IOW bonding is not the >>> issue. >>> >>> Which NIC do you have on those servers? >> >> >> The mainbord is a supermicro X10DRI-T with Intel X540 Dual port >> 10GBase-T. > > Okay, it's probably using ixgbe driver then. > You may consider testing a newer kernel and see how that goes out, > before doing too much debugging. > You can install v4.5 using one of ELrepo's kernels at > http://elrepo.org/linux/kernel/...

...t; > [89920.839074] BUG: unable to handle kernel paging request at > ffff88020ee9a000 > <snip> > This is on xen 4.6.6-4.el6 with 4.9.58-29.el6.x86_64. I see these issues > across a wide number of systems with from both Dell and Supermicro, although > we run the same Intel x540 10gb nic's in each system with the same netapp > nfs backend storage. We don't use NFS and have not seen the exact same issue. --Sarah

...mild_club@yahoo.com> To: "Christian Barth" <barth@cck.uni-kl.de> Subject: Re: [Samba] Need help for samba share and unix group Date sent: Wed, 20 Feb 2002 23:47:36 +0700 this is my group configuration /etc/group accounting:x:539:amir administration:x:x540:aminah directors:x:541:jalu,manis,upay hrd:x:542:mariska ----- Original Message ----- From: "Christian Barth" <barth@cck.uni-kl.de> To: <samba@lists.samba.org>; "Sigit" <mild_club@yahoo.com> Sent: Wednesday, February 20, 2002 3:09 PM Subject: Re: [Samba] Nee...

Dear support, I need to export gluster volume with LIO for a virtualization system. In this moment I have a very basic test configuration: 2x HP 380 G7(2 * Intel X5670 (Six core @ 2,93GHz), 72GB ram, hd RAID10 6xsas 10krpm, lan Intel X540 T2 10GB) directly interconnected. Gluster configuration is replica 2. OS is Fedora 27 For my tests I used dd and I found strange results. Apparently the volume mounted locally and exported with LIO is more faster than the same volume exported directly with LIO. For my tests I exported the volu...

...ns. > > Performance data > ================ > > Test environment: > > CPU: Intel (R) Xeon(R) CPU ES-2699 v3 @ 2.30GHz > Host RAM: 64GB > Host Linux Kernel: 4.2.0 Host OS: CentOS 7.1 > Guest Linux Kernel: 4.5.rc6 Guest OS: CentOS 6.6 > Network: X540-AT2 with 10 Gigabit connection > Guest RAM: 8GB > > Case 1: Idle guest just boots: > ============================================ > | original | pv > ------------------------------------------- > total time(ms) | 1894 | 421 > --------...

...own >> then the NIC lost its link and bond is just protecting you as you >> probably didn't have any downtime due to that. IOW bonding is not the >> issue. >> >> Which NIC do you have on those servers? > > > The mainbord is a supermicro X10DRI-T with Intel X540 Dual port 10GBase-T. Okay, it's probably using ixgbe driver then. You may consider testing a newer kernel and see how that goes out, before doing too much debugging. You can install v4.5 using one of ELrepo's kernels at http://elrepo.org/linux/kernel/el7/x86_64/RPMS/ http://elrepo.org/tik...

...ve > > Performance data > ================ > > Test environment: > > CPU: Intel (R) Xeon(R) CPU ES-2699 v3 @ 2.30GHz > Host RAM: 64GB > Host Linux Kernel: 4.2.0 Host OS: CentOS 7.1 > Guest Linux Kernel: 4.5.rc6 Guest OS: CentOS 6.6 > Network: X540-AT2 with 10 Gigabit connection > Guest RAM: 8GB > > Case 1: Idle guest just boots: > ============================================ > | original | pv > ------------------------------------------- > total time(ms) | 1894 | 421 > --------...

...it from this PV solution by with some extra modifications. Performance data ================ Test environment: CPU: Intel (R) Xeon(R) CPU ES-2699 v3 @ 2.30GHz Host RAM: 64GB Host Linux Kernel: 4.2.0 Host OS: CentOS 7.1 Guest Linux Kernel: 4.5.rc6 Guest OS: CentOS 6.6 Network: X540-AT2 with 10 Gigabit connection Guest RAM: 8GB Case 1: Idle guest just boots: ============================================ | original | pv ------------------------------------------- total time(ms) | 1894 | 421 -------------------------------------------- tra...

...it from this PV solution by with some extra modifications. Performance data ================ Test environment: CPU: Intel (R) Xeon(R) CPU ES-2699 v3 @ 2.30GHz Host RAM: 64GB Host Linux Kernel: 4.2.0 Host OS: CentOS 7.1 Guest Linux Kernel: 4.5.rc6 Guest OS: CentOS 6.6 Network: X540-AT2 with 10 Gigabit connection Guest RAM: 8GB Case 1: Idle guest just boots: ============================================ | original | pv ------------------------------------------- total time(ms) | 1894 | 421 -------------------------------------------- tra...

On 03/27/2017 04:03 PM, Kevin Stange wrote: > On 03/25/2017 02:35 PM, Sarah Newman wrote: >> On 03/16/2017 04:22 PM, Kevin Stange wrote: >> >>>> I still can't rest assured the NIC issue is fixed, but no 4.4 or 4.9 >>>> server has yet had a NIC issue, with some being up almost a full month. >>>> It looks promising! (I'm knocking on all the

...gt; > ================ > > > > Test environment: > > > > CPU: Intel (R) Xeon(R) CPU ES-2699 v3 @ 2.30GHz Host RAM: 64GB > > Host Linux Kernel: 4.2.0 Host OS: CentOS 7.1 > > Guest Linux Kernel: 4.5.rc6 Guest OS: CentOS 6.6 > > Network: X540-AT2 with 10 Gigabit connection Guest RAM: 8GB > > > > Case 1: Idle guest just boots: > > ============================================ > > | original | pv > > ------------------------------------------- > > total time(ms) | 1894 |...

...gt; > ================ > > > > Test environment: > > > > CPU: Intel (R) Xeon(R) CPU ES-2699 v3 @ 2.30GHz Host RAM: 64GB > > Host Linux Kernel: 4.2.0 Host OS: CentOS 7.1 > > Guest Linux Kernel: 4.5.rc6 Guest OS: CentOS 6.6 > > Network: X540-AT2 with 10 Gigabit connection Guest RAM: 8GB > > > > Case 1: Idle guest just boots: > > ============================================ > > | original | pv > > ------------------------------------------- > > total time(ms) | 1894 |...

If I'm using the SR-IOV Pool assignment method (from http://wiki.libvirt.org/page/Networking#Assignment_from_a_pool_of_SRIOV_VFs_in_a_libvirt_.3Cnetwork.3E_definition ), how would I check how many virtual functions are already in use? Is there a method other then looping through all the active guests and determining if they're using the SR-IOV interface?

...t worked several times but not always was to migrate / shutdown the domUs, deactivate the volume groups, log out of all the iSCSI targets, "ifdown bond1" and "modprobe -r ixgbe" followed by "ifup bond1". The set up is: - Intel Dual 10Gb Ethernet - either X520-T2 or X540-T2 - Tried Xen kernels from both xen.crc.id.au and CentoS 6 Xen repos - LACP bonding to connect to the NFS & iSCSI storage using Brocade VDX6740T fabric. MTU=9000 >> There has to be something common. > > The NICs having issues are running a native VLAN, a tagged VLAN, iSCSI >...

...> > > > Test environment: > > > > > > CPU: Intel (R) Xeon(R) CPU ES-2699 v3 @ 2.30GHz Host RAM: 64GB > > > Host Linux Kernel: 4.2.0 Host OS: CentOS 7.1 > > > Guest Linux Kernel: 4.5.rc6 Guest OS: CentOS 6.6 > > > Network: X540-AT2 with 10 Gigabit connection Guest RAM: 8GB > > > > > > Case 1: Idle guest just boots: > > > ============================================ > > > | original | pv > > > ------------------------------------------- > > > tot...

...> > > > Test environment: > > > > > > CPU: Intel (R) Xeon(R) CPU ES-2699 v3 @ 2.30GHz Host RAM: 64GB > > > Host Linux Kernel: 4.2.0 Host OS: CentOS 7.1 > > > Guest Linux Kernel: 4.5.rc6 Guest OS: CentOS 6.6 > > > Network: X540-AT2 with 10 Gigabit connection Guest RAM: 8GB > > > > > > Case 1: Idle guest just boots: > > > ============================================ > > > | original | pv > > > ------------------------------------------- > > > tot...

On 01/27/2017 06:08 AM, Karel Hendrych wrote: > Have you tried to eliminate all power management features all over? I've been trying to find and disable all power management features but having relatively little luck with that solving the problems. Stabbing the the dark I've tried different ACPI settings, including completely disabling it, disabling CPU frequency scaling, and setting