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pthread library version

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Operating Systems AIX pthread library version
# 1  
Old 01-05-2010
pthread library version
Hi,
I am encountering a strange problem. We have a COREBA based C++ application running on an AIX box. The application crashes at times at the test environment causing core dump. Analyzing the core file, we found that it points to the pthread. So we thought of checking the pthread version at the development environment and the test environment. We used lslpp -l | grep thread command to find --
bos.rte.libpthreads 5.3.0.40 COMMITTED libpthreads Library -> dev box

bos.rte.libpthreads 5.3.7.3 APPLIED libpthreads Library --> test box

The dbx on the core file shows --
pthdb_session.c, 818: 0 PTHDB_INTERNAL (internal error)
pthreaded.c, 1941: PTHDB_INTERNAL (internal error)
.() at 0x0

So we thought the pthread library has something to play in the causing core dump. I have a query ---
1) How do we make sure that the applied version is the committed version ?
2) Can a mismatch in minor version cause core dump for a C++ application ?
3) If library mismatch causes issue, how can we sync up the environments for pthread library ourselves ? We don't have support warranty with vendor.

Many thanks
Asutosh
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LEARN ABOUT MOJAVE

gcore

gcore(1)						    BSD General Commands Manual 						  gcore(1)

NAME

     gcore -- get core images of running processes

SYNOPSIS

     gcore [-s] [-v] [-b size] [-o path | -c pathformat] pid

DESCRIPTION

     The gcore program creates a core file image of the process specified by pid.  The resulting core file can be used with a debugger, e.g.
     lldb(1), to examine the state of the process.

     The following options are available:

     -s 	 Suspend the process while the core file is captured.

     -v 	 Report progress on the dump as it proceeds.

     -b size	 Limit the size of the core file to size MiBytes.

     The following options control the name of the core file:

     -o path
	   Write the core file to path.

     -c pathformat
	   Write the core file to pathformat.  The pathformat string is treated as a pathname that may contain various special characters which
	   cause the interpolation of strings representing specific attributes of the process into the name.

	   Each special character is introduced by the % character.  The format characters and their meanings are:

	   N	       The name of the program being dumped, as reported by ps(1).

	   U	       The uid of the process being dumped, converted to a string.

	   P	       The pid of the process being dumped, converted to a string.

	   T	       The time when the core file was taken, converted to ISO 8601 format.

	   %	       Output a percent character.

     The default file name used by gcore is %N-%P-%T.  By default, the core file will be written to a directory whose name is determined from the
     kern.corefile MIB.  This can be printed or modified using sysctl(8).

     The directory where the core file is to be written must be accessible to the owner of the target process.

     gcore will not overwrite an existing file, nor will it create missing directories in the path.

EXIT_STATUS
     The gcore utility exits 0 on success, and >0 if an error occurs.

FILES

     /cores/%N-%P-%T	   default pathname for the corefile.

BUGS

     With the -b flag, gcore writes out as much data as it can up to the specified limit, even if that results in an incomplete core image.  Such
     a partial core dump may confuse subsequent programs that attempt to parse the contents of such files.

SEE ALSO

     lldb(1), core(5), Mach-O(5), sysctl(8), sudo(8).

Darwin								   May 31, 2019 							    Darwin