a strange segment fault about ltp-posix test Post: 302328465

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Top Forums Programming a strange segment fault about ltp-posix test Post 302328465 by yanglei_fage on Wednesday 24th of June 2009 11:11:42 AM

06-24-2009

Registered User

a strange segment fault about ltp-posix test

Hi all

In the ltp-posix test,there is a case in open_posix_testsuite\conformance\interfaces\timer_gettime\speculative/6-1.c

Quote:

#include <time.h>
#include <stdio.h>
#include <errno.h>
//#include "posixtest.h"
#define BOGUSTID 9999
int main(int argc, char *argv[])
{
timer_t tid;
struct itimerspec its;
tid = (timer_t) BOGUSTID;

if (timer_gettime(tid, &its) == -1) {
if (EINVAL == errno) {
printf("fcn returned -1 and errno==EINVAL\n");
//return PTS_PASS;
} else {
printf("fcn returned -1 but errno!=EINVAL\n");
printf("Test FAILED\n");
//return PTS_FAIL;
}
}
printf("fcn did not return -1\n");
//return PTS_PASS;
}

I run the above code,it will has a segment fault, if I modify it to below,it works well

Quote:

#include <time.h>
#include <stdio.h>
#include <errno.h>
//#include "posixtest.h"
#define BOGUSTID 9999
int main(int argc, char *argv[])
{
timer_t tid;
struct itimerspec its;
int tval=BOGUSTID;
printf("%d\n",tval);
tid = (timer_t) &tval;
printf("%d\n",tid);
if (timer_gettime(tid, &its) == -1) {
if (EINVAL == errno) {
printf("fcn returned -1 and errno==EINVAL\n");
//return PTS_PASS;
} else {
printf("fcn returned -1 but errno!=EINVAL\n");
printf("Test FAILED\n");
//return PTS_FAIL;
}
}
printf("fcn did not return -1\n");
// return PTS_PASS;
}

Anybody can tell me why?

yanglei_fage

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ltpcli

LTPCLI(1)							  BP executables							 LTPCLI(1)

NAME

       ltpcli - LTP-based BP convergence layer input task

SYNOPSIS

       ltpcli local_node_nbr

DESCRIPTION

       ltpcli is a background "daemon" task that receives LTP data transmission blocks, extracts bundles from the received blocks, and passes them
       to the bundle protocol agent on the local ION node.

       ltpcli is spawned automatically by bpadmin in response to the 's' (START) command that starts operation of the Bundle Protocol; the text of
       the command that is used to spawn the task must be provided at the time the "ltp" convergence layer protocol is added to the BP database.
       The convergence layer input task is terminated by bpadmin in response to an 'x' (STOP) command.	ltpcli can also be spawned and terminated
       in response to START and STOP commands that pertain specifically to the LTP convergence layer protocol.

EXIT STATUS

       0   ltpcli terminated normally, for reasons noted in the ion.log file.  If this termination was not commanded, investigate and solve the
	   problem identified in the log file and use bpadmin to restart ltpcli.

       1   ltpcli terminated abnormally, for reasons noted in the ion.log file.  Investigate and solve the problem identified in the log file,
	   then use bpadmin to restart ltpcli.

FILES

       No configuration files are needed.

ENVIRONMENT

       No environment variables apply.

DIAGNOSTICS

       The following diagnostics may be issued to the ion.log log file:

       ltpcli can't attach to BP.
	   bpadmin has not yet initialized Bundle Protocol operations.

       No such ltp duct.
	   No LTP induct matching local_node_nbr has been added to the BP database.  Use bpadmin to stop the LTP convergence-layer protocol, add
	   the induct, and then restart the LTP protocol.

       CLI task is already started for this duct.
	   Redundant initiation of ltpcli.

       ltpcli can't initialize LTP.
	   ltpadmin has not yet initialized LTP operations.

       ltpcli can't open client access.
	   Another task has already opened the client service for BP over LTP.

       ltpcli can't create receiver thread
	   Operating system error.  Check errtext, correct problem, and restart LTP.

BUGS

       Report bugs to <ion-bugs@korgano.eecs.ohiou.edu>

SEE ALSO

       bpadmin(1), bprc(5), ltpadmin(1), ltprc(5), ltpclo(1)

perl v5.14.2							    2012-05-25								 LTPCLI(1)