Karl, I agree; that's a very good point. How about:
* Instead of setting a hard limit on the process count we can set a limit on
the rate of increase?
* Or otherwise, expressing the maximum as a function of the hardware specs?
Also, at the end of the day even if we don't change the default value
The problem with 'sensible default', is that different systems handle different
amount of load differently.
Ubuntu runs on systems from ~800mhz PC to 8 cored x32 threads (?) T2 Sparcs.
the limit that saves my (example) 800mhz pc will mean that the T2 is
almost idle.
ps. I think the bug would hav
This is a really good article as well:
http://www.securityfocus.com/columnists/308
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ubuntu freezes completely (all graphics and mouse) when executing shell ascii
forkbomb
https://bugs.launchpad.net/bugs/163185
You received this bug notification because you are a member of Ubuntu
Bugs, which is
I knew about limits.conf before I even posted this bug. The bug is only
about the default values that ubuntu ships with nothing else. I believe
Ubuntu should ship with a secure and stable configuration by default.
* Saying that "all other platforms crash" is bad argument (try "Windows boots
slow
On Fri, Nov 16, 2007 at 10:39:46PM -, mnemo wrote:
> Maybe ubuntu devs feel that a default limit is bad for some reason? If
> so, one idea would be to allow the administrator to say "maximum X
> processes can be created every Y seconds", such a feature could be use
> to set a pretty non-intrusi
FWIW, I just tried it on Vista and W2K. On the latter I was able to
recover just fine although it took 2-3 minutes before all my programs
were swapped back into RAM. On the former taskmgr.exe just crashed so I
could not get the fork bomb to stop but on Vista it can run the fork
bomb for 10 minutes
This honestly isn't a bug that Ubuntu becomes unstable/slow as you
instruct it to open an infinite number of processes. We assume that when
the user tells the computer to do something he means it. One should
avoid typing in forkbombs into the terminal if one does not want to
forkbomb his computer.
In addition, to safely restart your computer after a forkbomb has been
initiated, you can hold ALT-SysRq and press R E I S U B with about 5
seconds in between each letter. This will safely unmount your
filesystems before restarting, so you do not incur filesystem
corruption.
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ubuntu freezes com
I think it's fair to say that it's a problem that I can login to my
shared web hosting company and run some command that makes the whole
server unresponsive for several minutes. For this reason (and to avoid
the laptop crash), I would like to see a change ubuntu default config
here.
Maybe ubuntu d
To avoid that just edit /etc/security/limits.conf and add a line like:
"*nproc MAX_PROCESS_COUNT"
where MAX_PROCESS_COUNT is a high number (i have 2000)
Problem solved
PS my other post have way to many * to make sense
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ubuntu freezes completely (all graphics and mouse) wh
As Alejandro said, yeah, you can set limits on the maximum process
count.
To stall a forkbomb you first want to killall -STOP its associated
processes, then killall them.
--
ubuntu freezes completely (all graphics and mouse) when executing shell ascii
forkbomb
https://bugs.launchpad.net/bugs/16
To avoid that just
* edit /etc/security/limits.conf
* add a line like:
* nproc MAX_PROCESS_COUNT
where MAX_PROCESS_COUNT is a high number (i have 2000)
Problem solved
--
ubuntu freezes completely (all graphics and mouse) when executing shell ascii
forkbomb
https://bugs.launchpad.net/bugs/
Yes, Ubunbu becoming slow is very much expected but it should be
possible to "cancel" any mess and the machine should never freeze to the
point when it's not possible to move the mouse.
--
ubuntu freezes completely (all graphics and mouse) when executing shell ascii
forkbomb
https://bugs.launchp
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ubuntu freezes completely (all graphics and mouse) when executing shell ascii
forkbomb
https://bugs.launchpad.net/bugs/163185
You received this bug notification because you are a member of Ubuntu
Bugs, which is the bug contact for Ubuntu.
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