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#
# Copyright 1999-2005 Silicon Graphics, Inc. All rights reserved.
# Copyright 2004-2005 Silicon Graphics, Inc. All rights reserved.
#
# This file contains the configuration variables for Linux kernel crash
# dumps. The file should reside in /etc/dumputils.conf, with permissions
# set to 0644. There are currently eight variables defined in this file:
#
# DUMP_ACTIVE
# DUMPDEV
# DUMPDIR
# DUMP_LEVEL
# DUMP_FLAGS
# DUMP_COMPRESS
# PANIC_TIMEOUT
#
# Each one is documented below.
# ---------------------------------------------------------------------------
# DUMP_ACTIVE indicates whether the dump process is active or not. If this
# variable is 0, the dump kernel process will not be activated.
# Note that configuring with DUMP_ACTIVE 0 will not deactivate an already
# configured dump driver.
# ---------------------------------------------------------------------------
# DUMPDEV represents the name of the dump device. It is typically
# the primary swap partition on the local system, although any disk
# device can be used. Please be EXTRA careful when defining this
# value, as one false slip can cause all kinds of problems.
#
# Note that we currently recommend a dedicated partition for the dump
# device, and not the swap partition.
#
# Currently, a link is created from /dev/vmdump to the right device;
# rename this to the exact device to dump to if that's what you want.
#
# ---------------------------------------------------------------------------
# DUMPDIR is the location where crash dumps are saved. In that
# directory, a directory name YEARMONTHDATE will be created, i.e. 20057241038
#
#
# The DUMPDIR location may either be a standard directory such as
# /var/log/dump or it may be an FTP URL in the form:
# ftp://user:password@host:port/path
# Where user & password, port and path are optional.
#
# ---------------------------------------------------------------------------
# DUMP_LEVEL has a number of possible values:
#
# DUMP_NONE (0): Do nothing, just return if called.
# DUMP_HEADER (1): Dump the dump header and first 128K bytes out.
# DUMP_KERN (2): Everything in DUMP_HEADER and kernel pages only.
# DUMP_USED (4): Everything except kernel free pages.
# DUMP_ALL (8): All memory.
#
# For now, either DUMP_NONE, DUMP_HEADER or DUMP_ALL are valid, until
# someone comes along and adds page typing, at which time DUMP_KERN and
# DUMP_USED should be added. NOTE: You must use the numeric value, not
# the name of the variable.
# ---------------------------------------------------------------------------
# DUMP_COMPRESS indicates which compression mechanism the kernel should
# attempt to use for compression -- the new method is not to use dump
# compression unless someone specifically asks for it. There are multiple
# types of compression available. For now, if you 'modprobe dump_rle',
# the dump_rle.o module will be installed, which enables RLE compression
# of the dump pages. The RLE compression algorithm used in the kernel
# gives (on average) 40% compression of the memory image, which can
# vary depending on how much memory is used on the system. There are
# also other compression modules coming (such as GZIP). The values for
# DUMP_COMPRESS are currently:
#
# DUMP_COMPRESS_NONE(0): Don't compress this dump.
# DUMP_COMPRESS_RLE(1): Use RLE compression.
# DUMP_COMPRESS_GZIP(2): Use GZIP compression.
# ---------------------------------------------------------------------------
# For 2.4 Kernel based systems:
#
# 2.4 kernels expect to see DUMP_FLAGS as a decimal number.
#
# DUMP_FLAGS are the flag parameters to use when configuring system dumps.
# There are multiple values coming, but for now, the only valid value is
# DUMP_FLAGS_NONDISRUPT. The table includes:
#
# DUMP_FLAGS_NONE(0): No flags are required.
# DUMP_FLAGS_NONDISRUPT(1): Do not reboot after dumping; continue running.
#
# DUMP_FLAGS_NONDISRUPT is not recommended.
#
# For 2.6 Kernel based systems:
#
# 2.6 kernels expect to see DUMP_FLAGS as a hex number.
#
# DUMP_FLAGS, this is needed for versions of LKCD 6.x.x and prior. You do
# not need a DUMP_FLAGS with LKCD >= 8.0.0 that supports the sysfs interface.
#
# DUMP_FLAGS are the flag parameters to use when configuring system dumps.
# it consists of a base value that specifies the dump type and optional
# values that specifies features.
#
# The table includes:
# DUMP_FLAGS_DISKDUMP(0x80000000): Dump target is a local block device.
# DUMP_FLAGS_POLL(0x00000004): Use polling I/O if available.
#
# Right now the only valid base value is:
#
# DUMP_FLAGS=0x80000000 -- dump target is a local block device.
#
# and the only valid feature value is:
#
# DUMP_FLAGS_POLL(0x00000004): Use polling I/O if available.
#
# So you either have a choice of:
# DUMP_FLAGS=0x80000000 -- dump to block device interrupt driven.
# or
# DUMP_FLAGS=0x80000004 -- dump to block device polling I/O driven.
#
# It is important to note that polling I/O driven will fall back to interrupt
# driven if there is not a polling I/O driver available for your block device
# or you are using an older version of LKCD that does not support polling I/O.
#
# ---------------------------------------------------------------------------
# PANIC_TIMEOUT represents the timeout (in seconds) before reboot after a
# panic occurs. Typically this is set to 0 on the system, which means the
# kernel sits and spins until someone resets the machine. This is not the
# preferred action if we want to recover the dump after the reboot.
#
# ---------------------------------------------------------------------------
# NETDUMP Support:
#
# Requires LKCD >= 8.0.0 and the netdump server that is part of the
# lkcdutils package.
#
# DUMPDEV = network device
# TARGET_HOST = IP of the netdump server
# TARGET_PORT = Port on the netdump sever
# SOURCE_PORT = Local netdum port
# ETH_ADDRESS = The mac address of the netdump server
#
# Example:
# DUMP_ACTIVE=1
# DUMPDEV=eth0
# DUMP_LEVEL=8
# PANIC_TIMEOUT=5
# TARGET_HOST=192.168.0.23
# TARGET_PORT=6688
# SOURCE_PORT=6688
# ETH_ADDRESS=00:07:95:E6:08:FB
#
# Dump is disabled by default
DUMP_ACTIVE=0
DUMPDEV=/dev/vmdump
DUMPDIR=/var/log/dump
DUMP_LEVEL=8
DUMP_COMPRESS=2
PANIC_TIMEOUT=5
# The following is only needed for LKCD <= 6.x.x
DUMP_FLAGS=0x80000004
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