Babak Farrokhi farrokhi

If you need to debug a panic on a remote FreeBSD system, but don't want to transfer large coredumps, and can't afford the downtime caused by KDB interrupting the boot process, a text dump may be the answer. textdump(4) is the kernel dump facility, which allows you to see the crash information in a text format. It also allows for configuration of exactly what information is captured, by scripting input as if you were at the KDB prompt on the console.

Textdump has certain requirements. First, you must be running FreeBSD 7.1 or higher, and your kernel config must include the following options.

options DDB
options KDB
options KDB_UNATTENDED
options KDB_TRACE

dataset size

# wc -l bigdata-random.csv
 13013886 bigdata-random.csv

tools

Current Effective RBL Setup for Postfix

main.cf:

    smtpd_recipient_restrictions =
      permit_mynetworks,
      permit_sasl_authenticated,
      reject_non_fqdn_hostname,
      reject_non_fqdn_sender,
 reject_non_fqdn_recipient,

	#!/bin/sh
	#
	# Split default route into 8 smaller routes to avoid
	# lock contention during route lookup
	#
	# If a default router is not specified, it will be
	# taken from rc.conf.
	#

	ROUTECMD="/sbin/route -q "

	#!/bin/sh
	#
	# Copyright (c) 2015 Babak Farrokhi. All rights reserved.
	#
	# Redistribution and use in source and binary forms, with or without
	# modification, are permitted provided that the following conditions
	# are met:
	#
	# 1. Redistributions of source code must retain the above copyright
	# notice, this list of conditions and the following disclaimer.

	#!/bin/sh

	COMPILERS="clang gcc gcc45 gcc46 gcc47 gcc48 gcc49 gcc5 gcc6"

	check_compilers()
	{
	echo "Looking for available C compilers..."
	for C in ${COMPILERS}
	do
	P=`which ${C} 2>&1`

	#!/bin/sh

	#
	# Copyright (c) 2016 Babak Farrokhi. All rights reserved.
	#
	# Redistribution and use in source and binary forms, with or without
	# modification, are permitted provided that the following conditions
	# are met:
	#
	# 1. Redistributions of source code must retain the above copyright

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