generating core dumps Post: 302397252

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1. UNIX for Advanced & Expert Users

reading core dumps

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

2. Solaris

I have the following set up on a Sun server running solaris 5.8 for core dump generation coreadm global core file pattern: /var/core init core file pattern: /var/core global core dumps: enabled per-process core dumps: enabled global setid core dumps:...

3. Programming

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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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5. UNIX for Advanced & Expert Users

Using GDB to analyse different CORE dumps

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...

6. Programming

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7. Solaris

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....

8. Ubuntu

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'...

9. Programming

Stack only core dumps

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Generate core dumps

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 FREEBSD

crashinfo

CRASHINFO(8)						    BSD System Manager's Manual 					      CRASHINFO(8)

NAME

     crashinfo -- analyze a core dump of the operating system

SYNOPSIS

     crashinfo [-d crashdir] [-n dumpnr] [-k kernel] [core]

DESCRIPTION

     The crashinfo utility analyzes a core dump saved by savecore(8).  It generates a text file containing the analysis in the same directory as
     the core dump.  For a given core dump file named vmcore.XX the generated text file will be named core.txt.XX.

     By default, crashinfo analyzes the most recent core dump in the core dump directory.  A specific core dump may be specified via either the
     core or dumpnr arguments.	Once crashinfo has located a core dump, it analyzes the core dump to determine the exact version of the kernel
     that generated the core.  It then looks for a matching kernel file under each of the subdirectories in /boot.  The location of the kernel
     file can also be explicitly provided via the kernel argument.

     Once crashinfo has located a core dump and kernel, it uses several utilities to analyze the core including dmesg(8), fstat(1), iostat(8),
     ipcs(1), kgdb(1), netstat(1), nfsstat(1), ps(1), pstat(8), and vmstat(8).

     The options are as follows:

     -d crashdir
	     Specify an alternate core dump directory.	The default crash dump directory is /var/crash.

     -n dumpnr
	     Use the core dump saved in vmcore.dumpnr instead of the latest core in the core dump directory.

     -k kernel
	     Specify an explicit kernel file.

SEE ALSO

     textdump(4), savecore(8)

HISTORY

     The crashinfo utility appeared in FreeBSD 6.4.

BSD
								   June 28, 2008							       BSD

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

reading core dumps

Discussion started by: suntan

2. Solaris