A process is an instance of a computer program that is being executed.
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2answers
203 views
Discrepancy between reported used memory and sum of application memory usage
I'm running a desktop system that quite regularly suffers from lack of memory, this prompted me to investigate what causes the issue in the first place.
Problem is, there's no single process that ...
4
votes
1answer
54 views
Kill user processess on logout
I have a Ubuntu server that handles remote X sessions from users. However, I don't want to allow users to run any kind of background processes - so here is my question:
How do I prevent users from ...
3
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1answer
241 views
What is the need of the struct thread_info in locating struct task_struct?
While reading through the Linux Device Drivers, I could understand that the Process Descriptor (of type struct task_struct) has all the info regarding a particular task. The process descriptors are ...
2
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1answer
155 views
How to log processes in daemon-mode?
I would like to save the standard output of the program motion in a text file. If I don't use motion in daemon-mode I would simply do it by:
motion > log.txt
But what is the equivalent when I ...
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1answer
34 views
How to trace process scheduling of certain process?
For a project at my university I am researching ways to trace, log and manipulate the process scheduling of certain processes. I would like to launch an number of applications, everyone in a single ...
1
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1answer
52 views
List of killed processes HP-UX
Is there a file similar to the one in this answer http://unix.stackexchange.com/a/10078/5027 to determine the processes which were killed, in a certain time, for example, yesterday, in HP-UX?
3
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0answers
80 views
Elegantly get list of descendant processes
I would like to get a list of all the processes that descend (e.g. children, grand-children, etc) from $pid. This is the simplest way I've come up with:
pstree -p $pid | tr "\n" " " |sed "s/[^0-9]/ ...
3
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0answers
99 views
Can I get WCHAN from ps on Mac OS X 10.7.4?
From the manual it seems that ps -AO wchan should tell me what everything is sleeping on, but everything comes up as -. (And nwchan as 0). Did they do away with the old sleep()/tsleep() interface in ...
3
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0answers
265 views
Suggestions needed to debug why ps -ef gets stuck
A few of my processes consume 100% cpu. I'm trying to figure out which scripts are causing it
I tried running strace ps -ef:
open("/proc/PID/status", O_RDONLY) = 6
read(6, "Name:\textract\nState:\tR ...
2
votes
0answers
94 views
How to find current chroot jail path on Linux <2.6.26
While running kernel 2.6.26 or newer it's possible to get the path of the current chroot jail by comparing the mountinfo of the current process and the init process. Is there a way to get the same ...
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0answers
399 views
`[java] <defunct>` with defunct children -> Any way to collect them?
Relating to question : What if 'kill -9' doesn't work?
I have following situation : zombie process with threads, not collected by init :
[root@Arch64]# ps auxH | grep java
gwpl 569 ...
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0answers
302 views
How to kill a ghost process? AIX 6.1
oslevel: 6100-05-01-1016
according to topas:
root 1769602 1 93 20 112 0 128 32498:07 87.1 0 0 ldmp_pro
according to ps:
-bash-4.1# ps -ef | egrep -i "1769602|ldmp"
...
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0answers
141 views
Rogue Java process brings my computer to a halt
In reference to my earlier post: Is there a log of past threads that are now closed?
I gave the process a kill -STOP signal and started examining the details. I can't seem to figure out why it is ...
0
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0answers
39 views
Tracing system call on Ubuntu 12.04
The main task I have to carry out, is to trace the system call of processes in ubuntu 12.04 LTS.
Problem is, I am unable to trace them continuously, i.e. as soon as they are added to the system, they ...
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0answers
35 views
Forking two interactive bash processes causes parent process to stop or second bash to go background
If you fork (exec) two interactive bash processes within same parent process (from different threads) causes that parent process becomes stopped or second interactive bash goes to background which ...
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0answers
99 views
Very large values for utime and stime for foo. Is foo still running?
I am running a program foo
It has been running for close to 30 days now (even more)
Until around 10 days ago (I cannot be very exact) it used 100% of one cpu on my dual core laptop (it was at the ...
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0answers
107 views
Unable to use SIP over VPN, how to find out why
I am doing a VPN access using openvpn utility to connect to my private network. However I cannot use my SIP soft-phone service (which uses a private domain) even if I am connected to that private ...
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0answers
33 views
Is it possible that a method inside a module (in kernel mode) be preempted?
My basic question is about system stack of a thread, and system stack of a process
Two methods in a module?
Which of the methods can be preempted via kernel mode preemption,
the one in process ...
