Generating core dumps Post: 55253

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reading core dumps

Does anyone know how to read core dumps. Is gdb the only tool for it ? The OS is Solaris. Thanks

2. Programming

hi everyone, Right now when I do: strcmp(s1, s2); i get a core dump because at times s1 or s2 can be nothing so that makes strcmp() core dump. What is the solution, if at times I expect one of them (or both) to be NULL? I want to be able to compare that s1 is NULL and s2 is "blah" or...

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Hi, Can we modify the GDB source code so as to analyze core dumps from different targets? From my analysis, I think we need to build our section table statically for each target. i.e., including the various address boundaries in build_section_table() function. If this is the case, then the GDB...

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My program is not dumping core when hitting a segmentation violation inside a thread. However, it dumps core when the segv occurs within main. Any ideas on how to diagnose this? AIX 5.3

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core dumps

i had a situation where a process was defunct. preap would not reap the process and gcore would not work properly (not sure why). therefore, the suggestion was to force a panic and collect the core dump. obviously you could do a savecore -L and capture the dump without bringing down the system....

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enabling core dumps for daemon processes

Hello, I am debugging a program which works as daemon. It sigfaults, unfortunately I'm unable to generate core dump file. Here is what I am doing: tsurko@bastila:~$ ulimit -c unlimited tsurko@bastila:~$ ulimit -c unlimited tsurko@bastila:~$ cat /etc/sysctl.conf | grep 'core_pattern'...

8. Red Hat

generating core dumps

Hi I have a Fedora installed and I try to generate my application's core dump file. My system has no coredump limit: $ ulimit core file size (blocks, -c) unlimited But when my application crashes no core dumps generated. I can generate dump file using gcore but it is not appropraite...

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Stack only core dumps

I'm working on a program in Linux with a group of people scattered around the country. When we have a crash, I like to send a core dump to the appropriate person so that they can understand the problem better. The problem is that our application uses several gigabytes worth of data and these...

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kill -SEGV <pid> gives me the core file for that process but also terminates the process. Can I not get the core dump without terminating the process ?

LEARN ABOUT MOJAVE

time

TIME(1) 						    BSD General Commands Manual 						   TIME(1)

NAME

     time -- time command execution

SYNOPSIS

     time [-lp] utility

DESCRIPTION

     The time utility executes and times utility.  After the utility finishes, time writes the total time elapsed, the time consumed by system
     overhead, and the time used to execute utility to the standard error stream.  Times are reported in seconds.

     Available options:

     -l      The contents of the rusage structure are printed.

     -p      The output is formatted as specified by IEEE Std 1003.2-1992 (``POSIX.2'').

     Some shells may provide a builtin time command which is similar or identical to this utility.  Consult the builtin(1) manual page.

DIAGNOSTICS

     The time utility shall exit with one of the following values:

     1-125   An error occurred in the time utility.

     126     The utility was found but could not be invoked.

     127     The utility could not be found.

     Otherwise, the exit status of time shall be that of utility.

SEE ALSO

     builtin(1), csh(1), getrusage(2)

FILES

     /usr/include/sys/resource.h

STANDARDS

     The time utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').

BUGS

     The granularity of seconds on microprocessors is crude and can result in times being reported for CPU usage which are too large by a second.

BSD
								   June 6, 1993 							       BSD

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1. UNIX for Advanced & Expert Users

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Using GDB to analyse different CORE dumps

Discussion started by: nsdeeps