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Full Discussion: Memory fault(Coredump)
Top Forums UNIX for Advanced & Expert Users Memory fault(Coredump) Post 302666671 by shilpa_20 on Thursday 5th of July 2012 03:26:30 AM
Old 07-05-2012
Memory fault(Coredump)
Hi,

In my application we have one job which is used to process the files. But that job is failing with memory fault while processing a file or while shutting down the job. Sometime it generates the coredump and sometimes not. When I analysed the core dump I got below code snippet where it failed,

Code:
if ( addlUsage.pParamVal != NULL )
      {
                free (addlUsage.pParamVal);
                addlUsage.pParamVal = NULL;
      }

It failed while trying to free memory 'free (addlUsage.pParamVal);'.

When I analyzed the addlUsage.pParamVal value then I got one junk character at the end. So I added the \0 at the end after allocating the memory for it (o_pADUbuffer in below code is addlUsage) and then copied required value to addlUsage.pParamVal . Please see below,

Code:
lenOfVarADU = sizeOfAddlUsage - sizeOfFixedAddlUsage;
o_pADUbuffer->pParamVal = (char *)malloc((sizeOfAddlUsage - sizeOfFixedAddlUsage) + 1);
o_pADUbuffer->pParamVal[lenOfVarADU] = '\0';
 
memcpy(o_pADUbuffer->pParamVal, temp_buf + inputBuffPosIndx,
                   (sizeOfAddlUsage - sizeOfFixedAddlUsage));

But still I am getting same issue.

Please help....Thanks in advance.
Last edited by Scrutinizer; 07-05-2012 at 04:37 AM.. Reason: code tags
 

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LEARN ABOUT DEBIAN

globus_gram_protocol_job_state

GRAM Job States(3)					       globus gram protocol						GRAM Job States(3)

NAME

       GRAM Job States -

   Enumerations
       enum globus_gram_protocol_job_state_t { GLOBUS_GRAM_PROTOCOL_JOB_STATE_PENDING = 1, GLOBUS_GRAM_PROTOCOL_JOB_STATE_ACTIVE = 2,
	   GLOBUS_GRAM_PROTOCOL_JOB_STATE_FAILED = 4, GLOBUS_GRAM_PROTOCOL_JOB_STATE_DONE = 8, GLOBUS_GRAM_PROTOCOL_JOB_STATE_SUSPENDED = 16,
	   GLOBUS_GRAM_PROTOCOL_JOB_STATE_UNSUBMITTED = 32, GLOBUS_GRAM_PROTOCOL_JOB_STATE_STAGE_IN = 64, GLOBUS_GRAM_PROTOCOL_JOB_STATE_STAGE_OUT
	   = 128, GLOBUS_GRAM_PROTOCOL_JOB_STATE_ALL = 0xFFFFF }

Detailed Description
       The globus_gram_protocol_job_state_t contains information about the current state of the job as known by the job manager.

       Job state changes are sent by the Job Manager to all registered clients. A client may ask for information from the job manager via the
       status request.

Enumeration Type Documentation
   enum globus_gram_protocol_job_state_t
       GRAM Job States.

       Enumerator:

       GLOBUS_GRAM_PROTOCOL_JOB_STATE_PENDING
	      The job is waiting for resources to become available to run.

       GLOBUS_GRAM_PROTOCOL_JOB_STATE_ACTIVE
	      The job has received resources and the application is executing.

       GLOBUS_GRAM_PROTOCOL_JOB_STATE_FAILED
	      The job terminated before completion because an error, user-triggered cancel, or system-triggered cancel.

       GLOBUS_GRAM_PROTOCOL_JOB_STATE_DONE
	      The job completed successfully.

       GLOBUS_GRAM_PROTOCOL_JOB_STATE_SUSPENDED
	      The job has been suspended. Resources which were allocated for this job may have been released due to some scheduler-specific
	      reason.

       GLOBUS_GRAM_PROTOCOL_JOB_STATE_UNSUBMITTED
	      The job has not been submitted to the scheduler yet, pending the reception of the GLOBUS_GRAM_PROTOCOL_JOB_SIGNAL_COMMIT_REQUEST
	      signal from a client.

       GLOBUS_GRAM_PROTOCOL_JOB_STATE_STAGE_IN
	      The job manager is staging in files to run the job.

       GLOBUS_GRAM_PROTOCOL_JOB_STATE_STAGE_OUT
	      The job manager is staging out files generated by the job.

       GLOBUS_GRAM_PROTOCOL_JOB_STATE_ALL
	      A mask of all job states.

Author
       Generated automatically by Doxygen for globus gram protocol from the source code.

Version 11.3							  Mon Apr 30 2012						GRAM Job States(3)
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