# [OmniOS-discuss] OmniOS random freezes

Niels Goossens ngoossens at gmail.com
Mon Jan 6 22:50:18 UTC 2014

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    All,

    Short introduction: I'm a non-professional user running a home lab
    (actually in a Sun 900 rack, but that's a different story). One of my
    machines is a Supermicro X9SCL-F motherboard with a Xeon 1230v2 running the
    latest OmniOS release, r151008 - 6de5e81.

    The reason I chose OmniOS is because it allows me to have one machine act
    as FC target and KVM host simultaneously. In my home lab, where the
    electricity bill is always an issue, this is a good thing.

    I'm running Cloudstack in my home lab divided over three machines: two
    Supermicro X9SCL-F boards with Xeon 1230v2 act as compute hosts (running a
    basic Ubuntu 13.10 with KVM because Cloudstack needs libvirt for
    controlling the hosts), and one machine acts as Cloudstack controller. This
    is the OmniOS machine and it runs a few VMs (mysql, bind,
    Cloudstack-management, alfresco, plex).

    The machine itself has 32gb ram, 5x1tb drives on the motherboard sata
    controller (in raidz1). Boot drive is a dedicated 320gb sata drive on the
    same onboard sata controller. Two PCIe cards are connected: one QLogic 2460
    FC card, and one IBM branded Intel PRO/1000 PT dual port.

    My OmniOS host experiences random freezes. These appear out of nowhere. I
    will list the steps I've taken to isolate the issue so far.

    1. Is the system under load when the freeze occurs?
    A. No. I've let the machine run idle the past few days, and it will freeze
    anyway.

    2. Is there anything in /var/adm/messages?
    A. Not anymore. There used to be though: I've seen the following:

    Jan  4 20:40:16 controller mac: [ID 469746 kern.info] NOTICE: e1000g2
    registered
    Jan  4 20:40:19 controller mac: [ID 435574 kern.info] NOTICE: e1000g2 link
    up, 1000 Mbps, full duplex
    Jan  4 20:49:30 controller mac: [ID 486395 kern.info] NOTICE: e1000g2 link
    down
    Jan  4 20:49:30 controller in.routed[1382]: [ID 238047 daemon.warning]
    interface e1000g2 to 10.10.3.8 turned off

    I've disabled e1000g2 (simply ifconfig e1000g2 down and the warnings have
    disappeared - this leads me to suspect the Intel NIC though)

    I've also seen lots of these entries in /var/adm/messages:

    Jan  5 11:08:21 controller ahci: [ID 117845 kern.warning] WARNING: satapkt
    0xffffff0935ec3900: cmd_reg = 0xb0 features_reg = 0x0 sec_count_msb = 0x0
    lba_low_msb = 0x4f lba_mid_msb = 0x4f lba_high_msb = 0x0 sec_count_lsb =
    0x0 lba_low_lsb = 0x0 lba_mid_lsb = 0x4f lba_high_lsb = 0xc2 device_reg =
    0x0 addr_type = 0x4 cmd_flags = 0x12

    There was an additional PCIe sata card in this machine, which I have
    removed. The warnings went away.

    3. Is the pool healthy?
    A. The drives are consumer grade sata drives and about 3 years old. They
    are not really used that much - they used to be in my Opensolaris based NAS
    before I upgraded that to something bigger. Smartctl tells me SMART status
    of all drives is OK. There are no other log entries that lead me to believe
    a drive is bad. Zpool status is OK.

    4. Is there anything in Supermicro IPMI?
    A. The following, which has occurred only twice now:

    2013/11/23 19:53:28 Correctable Memory ECC @ DIMM2A(CPU1) - Asserted
    2013/11/23 19:53:29 Uncorrectable Memory ECC @ DIMM2A(CPU1) - Asserted
    2013/11/23 22:28:56 Correctable Memory ECC @ DIMM2A(CPU1) - Asserted
    2013/11/23 22:28:57 Uncorrectable Memory ECC @ DIMM2A(CPU1) - Asserted

    Even though I'd rather not see this error, I'm not alarmed considering it
    has not occurred since.
    5. Are core dump or crash files available?
    A. I've setup dumpadm and coreadm only today. There are no core files in /,
    or crash files in /var/crash. There are no log entries in /var/log. There
    is nothing in /var/adm/messages, the last entry there is hours before the
    machine freezes.

    Now I am not a full blown sysadmin but I do have some experience with
    Solaris, so I know my way around a little bit. I start to feel stuck
    however, I need help in further isolating this issue. Therefore any help is
    seriously appreciated!

    Thanks for any advice and kind regards,

    Niels Goossens
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