Login or Register to Ask a Question and Join Our Community


Emergency UNIX and Linux Support

How to open the core dump file in linux?

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Homework and Emergencies Emergency UNIX and Linux Support How to open the core dump file in linux?
# 1  
Old 08-23-2011
How to open the core dump file in linux?
Hi,


I have got core dump stating "core.bash.29846" so i am unable to open.

How to open the core dump file for further analysis?

Reagards
Vanitha
# 2  
Old 08-23-2011
GNU GDB Core Dump Debugging
# 3  
Old 08-23-2011
Please check below links:

Basic Info:
Core Dump Management on the Solaris OS

Using mdb:
http://download.oracle.com/docs/cd/E19082-01/817-2543/
http://www.cuddletech.com/blog/pivot/entry.php?id=965

Using Solaris CAT:
http://www.cuddletech.com/blog/pivot/entry.php?id=966

Using dbx:
http://download.oracle.com/docs/cd/E19422-01/819-3683/
Last edited by psshah; 08-23-2011 at 07:27 AM.. Reason: Updated links.
# 4  
Old 08-23-2011
use string command to read all string from core and redirect it to some tmp file.
# 5  
Old 08-24-2011
if you are using solaris, then refer the below commands

dbx
pstack
mdb
# 6  
Old 08-26-2011
Quote:
Originally Posted by donadarsh
use string command to read all string from core and redirect it to some tmp file.
This is not the proper way to debug a core file. use a debugger like already suggested.
# 7  
Old 12-05-2011
If you have a core file and you have compiled the program with debuging options (-g), you can see where the core was dumped:
$ gcc -g -o something something.c $ ./something Segmentation fault (core dumped) $ gdb something core You can use this to do some post-mortem debuging. A few gdb commands: br prints the stack, fr jumps to given stack frame (see the output of br).
Now if you want to see which files are opened at a segmentation fault, just handle the SIGSEGV signal, and in the handler, just dump the contents of the /proc/PID/fd directory (i.e. with system('ls -l /proc/PID/fs') or execv).
With these informations at hand you can easily find what caused the crash, which files are opened and if the crash and the file descriptor leak are connected.


Visit : techyv.com/questions/open-core-dump-file-linux
This User Gave Thanks to michelle_denise For This Post:
frappa
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Red Hat

Core Dump of a process in Red Hat Linux 5.9

Hello All, I am new joiner of this forum.I am new to Linux shell scripting. At present I have identified 1 application which stalls very frequently (PID is say xyz) and I am not having much information in its application log to identify the root cause of stalling. I need to take the core dump... (19 Replies)
Discussion started by: Anjan Ganguly
19 Replies

2. UNIX for Dummies Questions & Answers

Learn Linux Core Dump Analysis

Can any body provide me some good link to learn to create and analyze linux user mode application / kernel module core dumps? (1 Reply)
Discussion started by: rupeshkp728
1 Replies

3. Solaris

Problems in reading CORE DUMP file with dbx

I am new to UNIX. My Application is using c (.so files) and Java code. My application crashes and CORE DUMP file is generated ,which is huge. Now I want to view the CORE DUMP file to debug the application using dbx without starting process again. By only using the CORE DUMP file and dbx ,can i... (1 Reply)
Discussion started by: satde
1 Replies

4. Linux

Thread specific data from linux core dump

How do i get pointer to thread's local storage or thread specific data while analyzing core dump for linux ? i use pthread_setspecific to store some data in the pthread's local stoare. my multi threaded program on linux crashed, and i want to see what is stored in current running thread's... (2 Replies)
Discussion started by: vishwasungal
2 Replies

5. Shell Programming and Scripting

Cannot generate core dump file

Segmentation fault(core dumped) but I cant find core file any where. how to make it out? I try the command:ulimit -c unlimited, I even added it to the .bashrc file.And I removed ulimit setting in /etc/init.d/function. And there's no ulimit setting in /etc/profile. And I tried sudo find /... (8 Replies)
Discussion started by: vistastar
8 Replies

6. Programming

How to use a core dump file

Hi All, May be it is a stupid question, but, I would like to know what is the advantage using a core dump file at the moment of debugging using gdb. I know a core dump has information about the state of the application when it crashed, but, what is the difference between debugging using the... (2 Replies)
Discussion started by: lagigliaivan
2 Replies

7. Programming

how to view a core dump file

by what name does a core dump file stored??? like i wrote a test code: //dump.c main() { char *p=NULL; printf("%s",p); } of course the above code will produce a segmentation fault. but i cant see any file named core in my CWD. am using SUN0S 5.9 (6 Replies)
Discussion started by: vikashtulsiyan
6 Replies

8. UNIX for Dummies Questions & Answers

core dump file size

Hi All, is there any way to find out the optimal/would be size of the cor dump file generated by the system while a process got terminated abnormally? Basically we have been asked to provide the size of the core dump file being generated by the administrators who maintained the UNIX boxes.... (4 Replies)
Discussion started by: pushp.gahlot
4 Replies

9. UNIX for Dummies Questions & Answers

core dump

I've got a core dump in my weblogic home directory, which i have tried to debug by initiating savecore from /etc/init.d/savecore start but savecore failed to create the two files, that is vmcore.n and vmunix.n. savecore is enable on my server to save vmcore and vmunix in /var/crash/hostname 1)... (4 Replies)
Discussion started by: hassan2
4 Replies

10. UNIX for Dummies Questions & Answers

help, what is the difference between core dump and panic dump?

help, what is the difference between core dump and panic dump? (1 Reply)
Discussion started by: aileen
1 Replies
Login or Register to Ask a Question