Gollum got crashed

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LEARN ABOUT SUNOS

tnfxtract

tnfxtract(1)							   User Commands						      tnfxtract(1)

NAME

       tnfxtract - extract kernel probes output into a trace file

SYNOPSIS

       tnfxtract [ -d dumpfile -n namelist] tnf_file

DESCRIPTION

       The tnfxtract utility collects kernel trace output from an in-core buffer in the Solaris kernel, or from the memory image of a crashed sys-
       tem, and generates a binary TNF trace file like those produced directly by user programs being traced.

       Either both or neither of the -d and -n options must be specified. If neither is specified, trace output is extracted from the running ker-
       nel. If both are specified, the -d argument names the file containing the (crashed) system memory image, and the -n argument names the file
       containing the symbol table for the system memory image.

       The TNF trace file tnf_file produced is exactly the same size as the in-core buffer; it is essentially a snapshot of that  buffer.   It	is
       legal  to  run tnfxtract while kernel tracing is active, i.e., while the in-core buffer is being written. tnfxtract insures that the output
       file it generates is low-level consistent, that is, that only whole probes are written out, and that internal data structures in the buffer
       are not corrupted because the buffer is being concurrently written.

       The TNF trace file generated is suitable as input to tnfdump(1), which will generate an ASCII file.

OPTIONS

       The following options are supported:

       -d dumpfile     Uses  dumpfile  as the system memory image, instead of the running kernel. The dumpfile is normally the path name of a file
		       generated by the savecore utility.

       -n namelist     Uses namelist as the file containing the symbol table information for the given dumpfile.

OPERANDS

       The following operand is supported:

       tnf_file        Output file generated by tnfxtract based on kernel trace output from an in-core buffer in the Solaris kernel.

EXAMPLES

       Example 1: Extracting probes from a running kernel

       Extract probes from the running kernel into ktrace.out:

       example% tnfxtract ktrace.out

       Example 2: Extracting probes from a kernel crash dump

       Extract probes from a kernel crash dump into ktrace.out:

       example% tnfxtract -d /var/crash/`uname -n`/vmcore.0 
	  -n /var/crash/`uname -n`/unix.0 ktrace.out

EXIT STATUS

       The following exit values are returned:

       0	Successful completion.

       >0	An error occurred.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWtnfc			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       prex(1), tnfdump(1), savecore(1M), tnf_kernel_probes(4), attributes(5)

SunOS 5.10							    19 Aug 2003 						      tnfxtract(1)

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