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occasional core dump

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Operating Systems AIX occasional core dump
# 1  
Old 04-11-2006
occasional core dump
Hi,

We have one application (c language) installed on our AIX 5.2. When we enter some large amount of data in one screen and do update, it is dumping core some times without any error (like bus error, segmentation fault). Next we open the application again and enter the same data and do update. This time updates go through fine without any problem.

This problem (core dump) is happening only with that particular screen and occasionally, not always for the same data update.

We tried the same on another machine. It is not dumping core on that. Updates are going through fine always.

What can be the cause for this problem? Is this problem due to some memory settings? How to troubleshoot this problem?

Please let me know, if you need more info.

Please help ...

Thanks,
Venkat.
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LEARN ABOUT BSD

gcore

GCORE(1)						      General Commands Manual							  GCORE(1)

NAME

       gcore - get core image of running process

SYNOPSIS

       gcore [-s][-c core] pid

DESCRIPTION

       gcore  creates  a  core	image  of  each specified process, suitable for use with adb(1).  By default the core image is written to the file
       <pid>.core.

       The options are:

       -c     Write the core file to the specified file instead of <pid>.core.

       -s     Stop the process while creating the core image and resume it when done.  This makes sure that the core dump will be in a	consistent
	      state.   The  process is resumed even if it was already stopped.	Of course, you can obtain the same result by manually stopping the
	      process with kill(1).

       The core image name was changed from core.<pid> to <pid>.core to prevent matching names like core.h and core.c when using programs such	as
       find(1).

FILES

       <process-id>.core   The core image.

BUGS

       If gcore encounters an error while creating the core image and the -s option was used the process will remain stopped.

       Swapped out processes and system processes (the swapper) may not be gcore'd.

4.2 Berkeley Distribution					  April 15, 1994							  GCORE(1)