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Thread: vgdisplay in SLES 10 SP4 goes into uninterruptable sleep

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  1. Exclamation vgdisplay in SLES 10 SP4 goes into uninterruptable sleep

    Hi,

    I am using a critical System z host which cannot be rebooted.
    But when I ran vgdisplay in SLES 10 SP4, it went into uninterruptable sleep.
    Now I couldnt kill the processes.

    Can someone give me suggestions how to kill these process and how to prevent them in future.
    I can not reboot the host.
    >top
    7457 root 17 0 2912 1588 1016 D 0.0 0.3 0:00.03 vgdisplay
    7812 root 18 0 2912 1588 1016 D 0.0 0.3 0:00.03 vgdisplay
    7815 root 20 0 2912 1588 1016 D 0.0 0.3 0:00.03 vgdisplay
    7816 root 18 0 3152 1684 1100 D 0.0 0.3 0:00.03 vgdisplay
    7888 root 18 0 3152 1680 1096 D 0.0 0.3 0:00.03 vgdisplay\

    seqe00132:~ # ps -ef | grep vgdis
    root 7457 1 0 Aug09 ? 00:00:00 vgdisplay -v nn
    root 7812 1 0 Aug09 ? 00:00:00 vgdisplay -v /dev/nn
    root 7815 1 0 Aug09 ? 00:00:00 vgdisplay -v /dev/nn
    root 7816 1 0 Aug09 ? 00:00:00 vgdisplay -v
    root 7888 1 0 Aug09 ? 00:00:00 vgdisplay
    root 7971 1 0 Aug09 ? 00:00:00 sh -c PATH=/etc:/sbin:/usr/sbin; export PATH; LC_ALL=C; export LC_ALL; vgdisplay 2>&1
    root 7972 7971 0 Aug09 ? 00:00:00 vgdisplay
    root 7978 1 0 Aug09 ? 00:00:00 sh -c PATH=/etc:/sbin:/usr/sbin; export PATH; LC_ALL=C; export LC_ALL; vgdisplay 2>&1
    root 7979 7978 0 Aug09 ? 00:00:00 vgdisplay

    -Sathish

  2. #2

    Re: vgdisplay in SLES 10 SP4 goes into uninterruptable sleep

    Quote Originally Posted by kksathish_7777 View Post
    Hi,

    I am using a critical System z host which cannot be rebooted.
    But when I ran vgdisplay in SLES 10 SP4, it went into uninterruptable sleep.
    Now I couldnt kill the processes.

    Can someone give me suggestions how to kill these process and how to prevent them in future.
    I can not reboot the host.
    >top
    7457 root 17 0 2912 1588 1016 D 0.0 0.3 0:00.03 vgdisplay
    7812 root 18 0 2912 1588 1016 D 0.0 0.3 0:00.03 vgdisplay
    7815 root 20 0 2912 1588 1016 D 0.0 0.3 0:00.03 vgdisplay
    7816 root 18 0 3152 1684 1100 D 0.0 0.3 0:00.03 vgdisplay
    7888 root 18 0 3152 1680 1096 D 0.0 0.3 0:00.03 vgdisplay\

    seqe00132:~ # ps -ef | grep vgdis
    root 7457 1 0 Aug09 ? 00:00:00 vgdisplay -v nn
    root 7812 1 0 Aug09 ? 00:00:00 vgdisplay -v /dev/nn
    root 7815 1 0 Aug09 ? 00:00:00 vgdisplay -v /dev/nn
    root 7816 1 0 Aug09 ? 00:00:00 vgdisplay -v
    root 7888 1 0 Aug09 ? 00:00:00 vgdisplay
    root 7971 1 0 Aug09 ? 00:00:00 sh -c PATH=/etc:/sbin:/usr/sbin; export PATH; LC_ALL=C; export LC_ALL; vgdisplay 2>&1
    root 7972 7971 0 Aug09 ? 00:00:00 vgdisplay
    root 7978 1 0 Aug09 ? 00:00:00 sh -c PATH=/etc:/sbin:/usr/sbin; export PATH; LC_ALL=C; export LC_ALL; vgdisplay 2>&1
    root 7979 7978 0 Aug09 ? 00:00:00 vgdisplay

    -Sathish
    Hi Sathish,

    Not sure & also don't use the real time version myself. I do have some questions:

    Have some devices that belonged to one or more volume groups been pulled or paths to it maybe lost? And is this part of a clustered system?

    How many VG's have you configured on this system? And does the lvdisplay command (run against the VG you are trying to list the details of) work normally?

    Also curious how you are trying to kill the vgdisplay processes, which commands exactly?

    -Willem
    Knowledge Partner (voluntary sysop)
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