Re: Gutsy 7.10 - A mind of it's own.
- From: Rashkae <ubuntu@xxxxxxxxxxxxxxx>
- Date: Sun, 21 Dec 2008 12:31:56 -0500
Ted Hilts wrote:
Rashkae wrote:
Ted Hilts - Thunderbird Acct. wrote:Okay, I appreciate your warning about "kill -9 ..." but what should I
For several days now my Resource Usage Monitor has been busy even whenFor future reference, never use -9 signal unless as a last resort.
there is supposed to be nothing running. So I did a "ps -A" and looked
for a process that might be the cause. It turns out that my Gutsy
7.10 was doing some kind of unattended upgrade -- the first time I have
ever seen this happen. I checked the man files as well as the Ubuntu
Community Documentation and found "sudo apt-get update && sudo apt-get
install ubuntustudio-desktop ubuntustudio-audio
ubuntustudio-audio-plugins ubuntustudio-graphics ubuntustudio-video
linux-rt" but nothing about what set this process into motion in the
first place. In the effort of finding this situation I did "sudo kill -9
process-number" (where process-number represents the actual process
number). The process took a while to wind down which I thought was
strange. By this time I was beginning to worry about the state in which
I had left the system. For example, what happened after the kill
command? Can I resume the process? What was upgrade actually doing;
apps. or apps plus kernel, just somethings or everything? If the process
was repeated either from where it left off or from the beginning what
happens to my system which pretty well runs 7-24 until it crashes or
goes weird. Does it alert me in some way or what?
Thanks for any help or suggestions.
Thanks -- Ted
Although I can't say what state killing an apt install process will
leave your system, it's certain that whatever safety net the process
might include to handle a Term signal will not take place if you force
the issue with -9
have done to stop the "apt" process or any other process as far as that
goes? There are many reasons why it may be necessary to stop a process.
I obviously don't know the best way. For just one example, when using
FireFox web browser to capture web pages I have seen it hang Ubuntu
because of some conflict with a media player that is not responding or
does not exist.
Not sure about your firefox problem.. That in itself is an anomaly and
not business as usual. I have seen something similar on my Gutsy system
with the Gnash open source Flash player.. It would start filling all
ram (which starts filling swap, causing the system to be unresponsive)
and would continue until the system finally ran out and the Out of
Memory heuristics killed it.
As for killing a process, use the kill command (without the -9). That
sends a Term signal by default, which means the process itself is
supposed intercept the signal and exit.
It does happen that sometimes a very misbehaving app will not respond to
the term signal and you need end it with a -9. However, you should save
that as a last resort for already broken apps.
--
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- From: Ted Hilts - Thunderbird Acct.
- Re: Gutsy 7.10 - A mind of it's own.
- From: Rashkae
- Re: Gutsy 7.10 - A mind of it's own.
- From: Ted Hilts
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