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b089f4a68e
This patch contains the documentation for the kexec based crash dump tool.
Quick kdump-howto
================================================================
1) Download and build kexec-tools.
2) Download and build the latest kexec/kdump (-mm) kernel patchset.
Two kernels need to be built in order to get this feature working.
A) First kernel:
a) Enable "kexec system call" feature:
CONFIG_KEXEC=y
b) Physical load address (use default):
CONFIG_PHYSICAL_START=0x100000
c) Enable "sysfs file system support":
CONFIG_SYSFS=y
d) Boot into first kernel with the command line parameter "crashkernel=Y@X":
For example: "crashkernel=64M@16M".
B) Second kernel:
a) Enable "kernel crash dumps" feature:
CONFIG_CRASH_DUMP=y
b) Physical load addreess, use same load address as X in "crashkernel"
kernel parameter in d) above, e.g., 16 MB or 0x1000000.
CONFIG_PHYSICAL_START=0x1000000
c) Enable "/proc/vmcore support" (Optional, in Pseudo filesystems).
CONFIG_PROC_VMCORE=y
3) Boot into the first kernel.
4) Load the second kernel to be booted using:
kexec -p <second-kernel> --crash-dump --args-linux --append="root=<root-dev>
maxcpus=1 init 1"
5) System reboots into the second kernel when a panic occurs. A module can be
written to force the panic, for testing purposes.
6) See Documentation/kdump.txt for how to read the first kernel's
memory image and how to analyze it.
Signed-off-by: Hariprasad Nellitheertha <hari@in.ibm.com>
Signed-off-by: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: randy_dunlap <rdunlap@xenotime.net>
Signed-off-by: Maneesh Soni <maneesh@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
295 lines
10 KiB
Plaintext
295 lines
10 KiB
Plaintext
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This is a brief list of all the files in ./linux/Documentation and what
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they contain. If you add a documentation file, please list it here in
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alphabetical order as well, or risk being hunted down like a rabid dog.
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Please try and keep the descriptions small enough to fit on one line.
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Thanks -- Paul G.
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Following translations are available on the WWW:
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- Japanese, maintained by the JF Project (JF@linux.or.jp), at
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http://www.linux.or.jp/JF/
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00-INDEX
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- this file.
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BUG-HUNTING
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- brute force method of doing binary search of patches to find bug.
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Changes
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- list of changes that break older software packages.
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CodingStyle
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- how the boss likes the C code in the kernel to look.
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DMA-API.txt
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- DMA API, pci_ API & extensions for non-consistent memory machines.
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DMA-mapping.txt
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- info for PCI drivers using DMA portably across all platforms.
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DocBook/
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- directory with DocBook templates etc. for kernel documentation.
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IO-mapping.txt
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- how to access I/O mapped memory from within device drivers.
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IPMI.txt
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- info on Linux Intelligent Platform Management Interface (IPMI) Driver.
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IRQ-affinity.txt
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- how to select which CPU(s) handle which interrupt events on SMP.
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ManagementStyle
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- how to (attempt to) manage kernel hackers.
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MSI-HOWTO.txt
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- the Message Signaled Interrupts (MSI) Driver Guide HOWTO and FAQ.
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RCU/
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- directory with info on RCU (read-copy update).
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README.DAC960
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- info on Mylex DAC960/DAC1100 PCI RAID Controller Driver for Linux.
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SAK.txt
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- info on Secure Attention Keys.
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SubmittingDrivers
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- procedure to get a new driver source included into the kernel tree.
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SubmittingPatches
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- procedure to get a source patch included into the kernel tree.
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VGA-softcursor.txt
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- how to change your VGA cursor from a blinking underscore.
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arm/
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- directory with info about Linux on the ARM architecture.
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basic_profiling.txt
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- basic instructions for those who wants to profile Linux kernel.
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binfmt_misc.txt
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- info on the kernel support for extra binary formats.
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block/
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- info on the Block I/O (BIO) layer.
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cachetlb.txt
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- describes the cache/TLB flushing interfaces Linux uses.
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cciss.txt
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- info, major/minor #'s for Compaq's SMART Array Controllers.
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cdrom/
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- directory with information on the CD-ROM drivers that Linux has.
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cli-sti-removal.txt
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- cli()/sti() removal guide.
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computone.txt
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- info on Computone Intelliport II/Plus Multiport Serial Driver.
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cpqarray.txt
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- info on using Compaq's SMART2 Intelligent Disk Array Controllers.
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cpu-freq/
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- info on CPU frequency and voltage scaling.
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cris/
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- directory with info about Linux on CRIS architecture.
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crypto/
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- directory with info on the Crypto API.
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debugging-modules.txt
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- some notes on debugging modules after Linux 2.6.3.
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device-mapper/
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- directory with info on Device Mapper.
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devices.txt
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- plain ASCII listing of all the nodes in /dev/ with major minor #'s.
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digiepca.txt
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- info on Digi Intl. {PC,PCI,EISA}Xx and Xem series cards.
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dnotify.txt
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- info about directory notification in Linux.
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driver-model/
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- directory with info about Linux driver model.
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dvb/
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- info on Linux Digital Video Broadcast (DVB) subsystem.
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early-userspace/
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- info about initramfs, klibc, and userspace early during boot.
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eisa.txt
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- info on EISA bus support.
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exception.txt
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- how Linux v2.2 handles exceptions without verify_area etc.
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fb/
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- directory with info on the frame buffer graphics abstraction layer.
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filesystems/
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- directory with info on the various filesystems that Linux supports.
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firmware_class/
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- request_firmware() hotplug interface info.
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floppy.txt
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- notes and driver options for the floppy disk driver.
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ftape.txt
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- notes about the floppy tape device driver.
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hayes-esp.txt
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- info on using the Hayes ESP serial driver.
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highuid.txt
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- notes on the change from 16 bit to 32 bit user/group IDs.
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hpet.txt
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- High Precision Event Timer Driver for Linux.
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hw_random.txt
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- info on Linux support for random number generator in i8xx chipsets.
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i2c/
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- directory with info about the I2C bus/protocol (2 wire, kHz speed).
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i2o/
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- directory with info about the Linux I2O subsystem.
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i386/
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- directory with info about Linux on Intel 32 bit architecture.
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ia64/
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- directory with info about Linux on Intel 64 bit architecture.
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ide.txt
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- important info for users of ATA devices (IDE/EIDE disks and CD-ROMS).
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initrd.txt
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- how to use the RAM disk as an initial/temporary root filesystem.
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input/
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- info on Linux input device support.
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io_ordering.txt
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- info on ordering I/O writes to memory-mapped addresses.
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ioctl-number.txt
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- how to implement and register device/driver ioctl calls.
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iostats.txt
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- info on I/O statistics Linux kernel provides.
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isapnp.txt
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- info on Linux ISA Plug & Play support.
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isdn/
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- directory with info on the Linux ISDN support, and supported cards.
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java.txt
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- info on the in-kernel binary support for Java(tm).
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kbuild/
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- directory with info about the kernel build process.
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kdumpt.txt
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- mini HowTo on getting the crash dump code to work.
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kernel-doc-nano-HOWTO.txt
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- mini HowTo on generation and location of kernel documentation files.
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kernel-docs.txt
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- listing of various WWW + books that document kernel internals.
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kernel-parameters.txt
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- summary listing of command line / boot prompt args for the kernel.
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kobject.txt
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- info of the kobject infrastructure of the Linux kernel.
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laptop-mode.txt
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- How to conserve battery power using laptop-mode.
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ldm.txt
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- a brief description of LDM (Windows Dynamic Disks).
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locks.txt
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- info on file locking implementations, flock() vs. fcntl(), etc.
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logo.gif
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- Full colour GIF image of Linux logo (penguin).
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logo.txt
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- Info on creator of above logo & site to get additional images from.
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m68k/
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- directory with info about Linux on Motorola 68k architecture.
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magic-number.txt
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- list of magic numbers used to mark/protect kernel data structures.
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mandatory.txt
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- info on the Linux implementation of Sys V mandatory file locking.
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mca.txt
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- info on supporting Micro Channel Architecture (e.g. PS/2) systems.
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md.txt
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- info on boot arguments for the multiple devices driver.
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memory.txt
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- info on typical Linux memory problems.
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mips/
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- directory with info about Linux on MIPS architecture.
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mono.txt
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- how to execute Mono-based .NET binaries with the help of BINFMT_MISC.
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moxa-smartio
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- info on installing/using Moxa multiport serial driver.
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mtrr.txt
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- how to use PPro Memory Type Range Registers to increase performance.
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nbd.txt
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- info on a TCP implementation of a network block device.
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networking/
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- directory with info on various aspects of networking with Linux.
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nfsroot.txt
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- short guide on setting up a diskless box with NFS root filesystem.
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nmi_watchdog.txt
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- info on NMI watchdog for SMP systems.
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numastat.txt
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- info on how to read Numa policy hit/miss statistics in sysfs.
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oops-tracing.txt
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- how to decode those nasty internal kernel error dump messages.
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paride.txt
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- information about the parallel port IDE subsystem.
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parisc/
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- directory with info on using Linux on PA-RISC architecture.
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parport.txt
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- how to use the parallel-port driver.
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parport-lowlevel.txt
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- description and usage of the low level parallel port functions.
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pci.txt
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- info on the PCI subsystem for device driver authors.
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pm.txt
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- info on Linux power management support.
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pnp.txt
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- Linux Plug and Play documentation.
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power/
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- directory with info on Linux PCI power management.
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powerpc/
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- directory with info on using Linux with the PowerPC.
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preempt-locking.txt
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- info on locking under a preemptive kernel.
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ramdisk.txt
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- short guide on how to set up and use the RAM disk.
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riscom8.txt
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- notes on using the RISCom/8 multi-port serial driver.
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rocket.txt
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- info on the Comtrol RocketPort multiport serial driver.
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rpc-cache.txt
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- introduction to the caching mechanisms in the sunrpc layer.
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rtc.txt
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- notes on how to use the Real Time Clock (aka CMOS clock) driver.
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s390/
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- directory with info on using Linux on the IBM S390.
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sched-coding.txt
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- reference for various scheduler-related methods in the O(1) scheduler.
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sched-design.txt
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- goals, design and implementation of the Linux O(1) scheduler.
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sched-domains.txt
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- information on scheduling domains.
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sched-stats.txt
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- information on schedstats (Linux Scheduler Statistics).
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scsi/
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- directory with info on Linux scsi support.
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serial/
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- directory with info on the low level serial API.
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serial-console.txt
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- how to set up Linux with a serial line console as the default.
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sgi-visws.txt
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- short blurb on the SGI Visual Workstations.
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sh/
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- directory with info on porting Linux to a new architecture.
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smart-config.txt
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- description of the Smart Config makefile feature.
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smp.txt
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- a few notes on symmetric multi-processing.
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sonypi.txt
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- info on Linux Sony Programmable I/O Device support.
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sound/
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- directory with info on sound card support.
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sparc/
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- directory with info on using Linux on Sparc architecture.
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specialix.txt
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- info on hardware/driver for specialix IO8+ multiport serial card.
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spinlocks.txt
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- info on using spinlocks to provide exclusive access in kernel.
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stallion.txt
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- info on using the Stallion multiport serial driver.
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svga.txt
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- short guide on selecting video modes at boot via VGA BIOS.
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sx.txt
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- info on the Specialix SX/SI multiport serial driver.
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sysctl/
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- directory with info on the /proc/sys/* files.
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sysrq.txt
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- info on the magic SysRq key.
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telephony/
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- directory with info on telephony (e.g. voice over IP) support.
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time_interpolators.txt
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- info on time interpolators.
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tipar.txt
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- information about Parallel link cable for Texas Instruments handhelds.
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tty.txt
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- guide to the locking policies of the tty layer.
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unicode.txt
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- info on the Unicode character/font mapping used in Linux.
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uml/
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- directory with infomation about User Mode Linux.
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usb/
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- directory with info regarding the Universal Serial Bus.
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video4linux/
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- directory with info regarding video/TV/radio cards and linux.
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vm/
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- directory with info on the Linux vm code.
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voyager.txt
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- guide to running Linux on the Voyager architecture.
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watchdog/
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- how to auto-reboot Linux if it has "fallen and can't get up". ;-)
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x86_64/
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- directory with info on Linux support for AMD x86-64 (Hammer) machines.
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xterm-linux.xpm
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- XPM image of penguin logo (see logo.txt) sitting on an xterm.
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zorro.txt
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- info on writing drivers for Zorro bus devices found on Amigas.
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