Process remians in Running state causing other similar process to sleep and results to system hang


Login or Register for Dates, Times and to Reply

 
Thread Tools Search this Thread
Top Forums UNIX for Advanced & Expert Users Process remians in Running state causing other similar process to sleep and results to system hang
# 1  
Process remians in Running state causing other similar process to sleep and results to system hang

Hi Experts,

I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.

On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.

Can you please help me here why it is getting stuck in the __init_begin API. I am using linux kernel version 2.6.17.

Also i am not facing such probelm in kernel version 2.6.39

i have seen they have given one fix inside __init_begin in the kernel version 2.6.37 . Below is the fix

Code:
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index e7a6cca..664f942 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -22,7 +22,7 @@ SECTIONS
   _text = .;
   _stext = .;
   __init_begin = .;
-  INIT_TEXT_SECTION(PAGE_SIZE)
+  INIT_TEXT_SECTION(0)
   . = ALIGN(PAGE_SIZE);

   .text      :

Now , how this fix related to my problem . please help me to overcome this problem
Looking forward for your suggestions and comments.

Moderator's Comments:
Mod Comment Use code tags, thanks.

Last edited by zaxxon; 10-07-2015 at 09:54 AM.. Reason: code tags
# 2  
We need a little more information than that.

What's your system?

What do these processes do?

If this is Linux, 2.6.18 is extremely old. I think that's the first kernel I ever used (and rapidly upgraded from due to bugs).
# 3  
Hi Corona,

I am using linux kernel 2.6.17 .

The process is actually my binary which i am running on switch.
# 4  
# 5  
Hi

here i am using network packet brokering device.
# 6  
How much memory does your network switch have available when things start failing to run? Devices like this often have very limited resources.
# 7  
Actually -- your kernel is old enough that it's using LinuxThreads instead of modern NPTL. LinuxThreads had an irreparable design flaw which led to its abandonment and replacement by NPTL. Under some circumstances, control signals between processes overflow and are simply lost, causing hanging/stuck processes strikingly similar to this. I had the same problem, way way back in the day. Ancient history now, unless you're using a 15 year old kernel.

You need to upgrade your kernel.
Login or Register for Dates, Times and to Reply

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #775
Difficulty: Medium
UML state machine is a significantly enhanced realization of the mathematical concept of a finite automaton in computer science applications.
True or False?

9 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Process remians in Running state causing other similar process to sleep and results to system hang

Hi Experts, I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state. On doing cat /proc/<pid>wchan showing the "__init_begin" in the output. Can you please help me here... (1 Reply)
Discussion started by: naveeng
1 Replies

2. BSD

Process remians in Running state causing other similar process to sleep and results to system hang

Hi Experts, I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state. On doing cat /proc/<pid>wchan showing the "__init_begin" in the output. Can you please help me here... (0 Replies)
Discussion started by: naveeng
0 Replies

3. Red Hat

How to find the process which is caused system hung state?

when system is hung state due to swap, we will reboot it through ILO. i want to know which process caused system hung. (1 Reply)
Discussion started by: Naveen.6025
1 Replies

4. Shell Programming and Scripting

Script to Kill process which is in hang state

Hi, Can anyone help to create a script that will kill the process which is in hang state. (1 Reply)
Discussion started by: A.Santhosh
1 Replies

5. Shell Programming and Scripting

script to monitor process running on server and posting a mail if any process is dead

Hello all, I would be happy if any one could help me with a shell script that would determine all the processes running on a Unix server and post a mail if any of the process is not running or aborted. Thanks in advance Regards, pradeep kulkarni. :mad: (13 Replies)
Discussion started by: pradeepmacha
13 Replies

6. UNIX for Advanced & Expert Users

make a foreground running process to run background without hang up

I've tried this a long time ago and was successful but could not remember how i did it. Tried ctrl+Z and then used bg % could not figure what i did after to keep it no hangup - not sure if used nohup -p pid, can u plz help me out if this can be done. Any help will be appreciated. (12 Replies)
Discussion started by: pharos467
12 Replies

7. UNIX for Dummies Questions & Answers

How to change the system account that a process is running on?

I'm running an Apache server on Ubuntu. When I try to call fopen() in PHP, I get a bunch of permission errors. I searched for advice on this, and I found that I needed to change the system account that Apache runs on. However, I'm not sure how to do this, and I was unable to find the answer on... (3 Replies)
Discussion started by: gloriac991
3 Replies

8. Shell Programming and Scripting

how to start a process and make it sleep for 5 mins and then kill that process

how to start a process and make it sleep for 5 mins and then kill that process (6 Replies)
Discussion started by: shrao
6 Replies

9. UNIX for Advanced & Expert Users

my process is going to sleep mode after 12 hours but i need my process in in firsy pr

hi all I process is sleeping after 12 hours but i need to be run this to 24 hours but it goes in sleep mode after 12 hours what should i do to make process always running.Kindly give me suggestion. (0 Replies)
Discussion started by: mukesh_rakesh1
0 Replies

Featured Tech Videos