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seen Oct 14 '13 at 9:11

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Jan
31
comment Can't kill a sleeping process
It just seems to contradict everything I've read about interruptible sleeps, and I'm a little sceptical that I've stumbled upon some undocumented behaviour. e.g. Check the following 2 links. Am I misunderstanding something? (1) "In an interruptible sleep, the process could be woken up for processing of signals." (2) "If a signal is generated for a process in this state, then the operation is interrupted and the process is woken up by the delivery of a signal."
Jan
31
comment Can't kill a sleeping process
No, this process doesn't have any child processes.
Jan
31
comment Can't kill a sleeping process
This is on a production machine, and unfortunately these two tools have dependencies which I cannot install. I did try /etc/init.d/networking restart and it didn't do anything. Actually, I am now more interested in understanding why this can happen (since I didn't think interruptible sleeping processes were able to ignore SIGKILL) rather than how I can fix this problem.
Jan
29
awarded  Commentator
Jan
29
comment Can't kill a sleeping process
@slm - Please see my updated question.
Jan
29
revised Can't kill a sleeping process
provide output of lsof
Jan
29
comment Can't kill a sleeping process
Interesting. Do you have any references for this? Everything I can find with Google seems to say that interruptible processes should not be able to ignore SIGKILL.
Jan
28
comment Can't kill a sleeping process
@slm - lsof shows TCP sockets to riksun.riken.go.jp:80 (ESTABLISHED) and freedom.itsc.cuhk.edu.hk:80 (CLOSE_WAIT). I guess that could be it?
Jan
25
comment Can't kill a sleeping process
Removing the lock file had no effect.
Jan
25
comment Can't kill a sleeping process
I thought only uninterruptible sleep processes were able to block SIGKILL. Are interruptible sleep processes able to as well? If so, what is the difference between them?
Jan
25
awarded  Editor
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25
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Jan
25
revised Can't kill a sleeping process
added 100 characters in body
Jan
24
comment Can't kill a sleeping process
Re your revised answer, strace attaches to the process but does not output anything.
Jan
24
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