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How to open the core dump file in linux?

 
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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
# 3  
Old 08-23-2011
# 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 08-27-2011
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 12-06-2011
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
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