topic Re: application core dumps with HPUX ia64 in Operating System - HP-UX

application core dumps with HPUX ia64

AK_1_1 — Mon, 13 Jun 2011 17:46:20 GMT

Hello All,

I am trying to run an application that uses Pthread. It core dumps with the a segmentation fault. After loading the the core file in gdb it showed that the "__pthread_cancel_stack()" did a Segmentation fault. I understand this is a Pthread function but I am not sure how to rectify this. Any help in this matter will be greatly appreciated.

The platform is: HP-UX B.11.31 U ia64 3435274391

Thanks and Regards,
Atul.

Re: application core dumps with HPUX ia64

Dennis Handly — Mon, 13 Jun 2011 18:12:36 GMT

It helps if you show us the stack trace.
Do you have a thread stack overflow?
Have you done a pthread_cancel recently? I.e. is it reasonable to be in your stack trace state?

Re: application core dumps with HPUX ia64

AK_1_1 — Mon, 13 Jun 2011 18:23:07 GMT

Thanks for the reply. Below is the trace that I get from loading the core file in gdb.

HP gdb 5.9 for HP Itanium (32 or 64 bit) and target HP-UX 11.2x.
Copyright 1986 - 2001 Free Software Foundation, Inc.
Hewlett-Packard Wildebeest 5.9 (based on GDB) is covered by the
GNU General Public License. Type "show copying" to see the conditions to
change it and/or distribute copies. Type "show warranty" for warranty/support.
..
Core was generated by `eventsystemtest'.
Program terminated with signal 11, Segmentation fault.
SEGV_ACCERR - Invalid Permissions for object
#0 0xc0000000000e4980:1 in __pthread_cancel_stack ()
at /ux/core/libs/threadslibs/src/common/pthreads/pthread.c:5290
5290 /ux/core/libs/threadslibs/src/common/pthreads/pthread.c: No such file or directory.
in /ux/core/libs/threadslibs/src/common/pthreads/pthread.c

I am running a unittest program that runs well on several other Unix platforms with PThread. That made me wonder if this has something to do with HP-UX and Pthreads.

Thanks and Regards,
Atul.

Re: application core dumps with HPUX ia64

Dennis Handly — Mon, 13 Jun 2011 18:42:50 GMT

>Below is the trace that I get

I only see the top, not a trace. Where is the rest of the "bt" stack trace?