Re: Kill an uninteruptable process

From: Alexey Fadyushin (fab_at_s-tunnel.com)
Date: 01/30/05

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    Date: Sun, 30 Jan 2005 22:16:03 +0300
To: General Red Hat Linux discussion list <redhat-list@redhat.com>

    'D' state of the process is the "Uninterruptible sleep" state. This
    usually mean that the process has requested some operation which should
    be done by the kernel (for example I/O operation) and that operation was
    suspended in the kernel for some reason. Usually the operation is
    suspended until some external event, for example, the interrupt from the
    harddrive when the read/write operation completed. If the process is in
    the 'D' state for the long time (e.g. minutes) this means that something
    wrong happened with the hardware or the kernel data structures
    (sometimes this is due to some bug in the kernel).
    There is no way to kill process stuck in the kernel ('D') state. You
    should either reboot or just forget about that process and allow it to
    be in the 'D' state indefinitely.

    Alexey B. Fadyushin
    Brainbench MVP for Linux.
    http://www.brainbench.com

    Hugo Dominguez wrote:
    > Hi All,
    >
    > How in the name of sweet Jesus do I kill a process in "D" state.
    > I have tried the death penalty, kill -9, but it is still listed in ps -aux.
    > I was installing rpm packages over NFS. I lost NFS during the
    > installation. I remounted the pertinent NFS directory, no change.
    >
    > -Hugo
    >
    > 

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