[PVE-User] pve-kernel-4.13.13-5-pve hang with high IO

[Eneko Lacunza]

Hi all,

First of all, thanks to all who replied the original message.

This machine has been working without issues since the hang last 
tuesday, without us knowingly changing anything, so we're archiving this 
as an UFO sighting unless it happens again.

Thanks a lot
Eneko

El 24/01/18 a las 09:35, Eneko Lacunza escribió:
> Hi all,
>
> We just installed Proxmox 5.1 on a i7-3770 CPU @ 3.40GHz machine with 
> 32GB of RAM two days ago. It has 4 disks with mdraid6.
>
> It has been working very well for two days; more than 1TB of VM disk 
> have been transferred to that Proxmox, and they have been moved from a 
> Directory based storage to a LVM-thin storage successfully.
>
> Last night at 23:32 it hanged, and we had to hard-reboot it this 
> morning. On that moment it was receiving  about 100MB/s of network 
> traffic to a VM backed on LVM-thin disk, and writing the data to disk 
> (several rsync transfers). Don't know if that activity is related to 
> the hang really, syslog just shows about 20 lines of garbage.
>
> Anyone has seen something like this lately? I first thought about 
> Meltdown/Spectre patches and reboot issues, but don't know what's the 
> state in current Proxmox kernels.
>
> I can see the following in kernel boot log, doesn't seem it is loading 
> a very recent microcode:
> Jan 24 09:18:30 orion kernel: [    0.000000] microcode: microcode 
> updated early to revision 0x1c, date = 2015-02-26
>
> Also BIOS seems old, shouldn't be patched:
> Jan 24 09:18:30 orion kernel: [    0.000000] DMI: System manufacturer 
> System Product Name/P8H77-M PRO, BIOS 9002 05/30/2014
>
> # pveversion -v
> proxmox-ve: 5.1-36 (running kernel: 4.13.13-5-pve)
> pve-manager: 5.1-43 (running version: 5.1-43/bdb08029)
> pve-kernel-4.13.13-5-pve: 4.13.13-36
> libpve-http-server-perl: 2.0-8
> lvm2: 2.02.168-pve6
> corosync: 2.4.2-pve3
> libqb0: 1.0.1-1
> pve-cluster: 5.0-19
> qemu-server: 5.0-20
> pve-firmware: 2.0-3
> libpve-common-perl: 5.0-25
> libpve-guest-common-perl: 2.0-14
> libpve-access-control: 5.0-7
> libpve-storage-perl: 5.0-17
> pve-libspice-server1: 0.12.8-3
> vncterm: 1.5-3
> pve-docs: 5.1-16
> pve-qemu-kvm: 2.9.1-6
> pve-container: 2.0-18
> pve-firewall: 3.0-5
> pve-ha-manager: 2.0-4
> ksm-control-daemon: 1.2-2
> glusterfs-client: 3.8.8-1
> lxc-pve: 2.1.1-2
> lxcfs: 2.0.8-1
> criu: 2.11.1-1~bpo90
> novnc-pve: 0.6-4
> smartmontools: 6.5+svn4324-1
>
>
> Thanks a lot
> Eneko
>

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