Re: kill: cannot kill some processes
William T Wilson <fluffy@snurgle.org> wrote:
>On Thu, 22 Feb 2001, brian moore wrote:
>
>> > does the process list "Z" under STAT ? if it is the process has gone
>> > zombied and i don't think there is much you can do. sometimes zombie'd
>> > processes die on their own eventually many times they will not die until
>> > you reboot ..
>>
>> Not quite true... zombies don't ever die: they're already dead.
>
>While the description of zombie processes is accurate, I think another
>likely situation is that the process is in "uninterruptible sleep," i.e.
>the 'D' state. This happens when a process is blocked in a system call -
>it will be 'D' until the kernel function returns. Kernel bugs, hardware
>problems, and dead NFS mounts can cause these kernel functions to take
>a long time or forever.
A hint for NFS: mount your NFS filesystems with the '-o intr' mount
option. That way you'll be able to interrupt system calls related to
them.
--
Colin Watson [cjw44@flatline.org.uk]
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