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Full Discussion: core dump
Top Forums Programming core dump Post 302216074 by Manabhanjan on Friday 18th of July 2008 12:09:08 AM
Old 07-18-2008
core dump

how to view core dumped file using gdb and how to extract information from the coredumped file.can we get similar information from the other utilites like strace or ptrace.
 

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crashdc(8)						      System Manager's Manual							crashdc(8)

NAME
crashdc - Diagnostic data collection for a running or crashed system SYNOPSIS
/usr/bin/crashdc [system-kernel] [core-image] DESCRIPTION
The crashdc utility examines the core image of the operating system to extract critical diagnostic data. This utility is a shell script that invokes several tools and commands that extract selected parameters of a running or a crashed system (for example, system configura- tion, running processes, and panic messages). The arguments to the crashdc utility are the system kernel and the core image. The default values are /vmunix and /dev/mem, respectively. If you specify no arguments, the crashdc utility examines the running system. The system usually invokes the crashdc utility during system startup. If the most recent core dump has been saved by the savecore command, both the core image and the system kernel (respectively vmcore.n and vmunix.n, where the variable n is the crash number) are saved in the crash directory (by default, /var/adm/crash). Also, the crashdc utility saves the output as the file crash-data.n (where the variable n is the crash number) in the crash directory. The crashdc utility is invoked only if crash-data.n output in the crash directory does not exist or is not from the most recent crash. FILES
Default core image Default system image Output from crashdc SEE ALSO
Commands: dbx(1), kdbx(8), savecore(8) crashdc(8)
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