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Editorial Team
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Asked: 2026-05-14T07:40:09+00:00

In the following link http://www.faqs.org/docs/Linux-HOWTO/NFS-HOWTO.html It said a process is not killable except by

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In the following link

http://www.faqs.org/docs/Linux-HOWTO/NFS-HOWTO.html

It said a process is not killable except by a “sure kill”, but what’s sure kill?

hard (NFS client mount option)

The program accessing a file on a NFS
mounted file system will hang when the
server crashes. The process cannot be
interrupted or killed (except by a
“sure kill”) unless you also
specify intr. When the NFS server is
back online the program will continue
undisturbed from where it was. We
recommend using hard,intr on all NFS
mounted file systems.

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1 Answer

  1. Editorial Team

    I think it means kill -9, though please note that you are reading a quite old howto (as most other TLDP howtos, I think) from 2002 year, and regarding NFS mount options hard,intr are already default and

    The intr / nointr mount option is
    deprecated after kernel 2.6.25. Only
    SIGKILL can interrupt a pending NFS
    operation on these kernels, and if
    specified, this mount option is
    ignored to provide backwards
    compatibility with older kernels.

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