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Guilherme G. Piccoli a1ff1de00d docs: sysctl/kernel: add missing bit to panic_print 
Patch series "Some improvements on panic_print".

This is a mix of a documentation fix with some additions to the
"panic_print" syscall / parameter.  The goal here is being able to collect
all CPUs backtraces during a panic event and also to enable "panic_print"
in a kdump event - details of the reasoning and design choices in the
patches.

This patch (of 3):

Commit de6da1e8bc ("panic: add an option to replay all the printk
message in buffer") added a new bit to the sysctl/kernel parameter
"panic_print", but the documentation was added only in
kernel-parameters.txt, not in the sysctl guide.

Fix it here by adding bit 5 to sysctl admin-guide documentation.

[rdunlap@infradead.org: fix table format warning]
  Link: https://lkml.kernel.org/r/20220109055635.6999-1-rdunlap@infradead.org

Link: https://lkml.kernel.org/r/20211109202848.610874-1-gpiccoli@igalia.com
Link: https://lkml.kernel.org/r/20211109202848.610874-2-gpiccoli@igalia.com
Fixes: de6da1e8bc ("panic: add an option to replay all the printk message in buffer")
Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Reviewed-by: Feng Tang <feng.tang@intel.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Iurii Zaikin <yzaikin@google.com>
Cc: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-23 19:00:35 -07:00
arch arm64: mm: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef 2022-03-23 19:00:34 -07:00
block
certs
crypto
Documentation docs: sysctl/kernel: add missing bit to panic_print 2022-03-23 19:00:35 -07:00
drivers
fs fat: use pointer to simple type in put_user() 2022-03-23 19:00:34 -07:00
include kexec: make crashk_res, crashk_low_res and crash_notes symbols always visible 2022-03-23 19:00:34 -07:00
init init/main.c: return 1 from handled __setup() functions 2022-03-23 19:00:34 -07:00
ipc
kernel taskstats: remove unneeded dead assignment 2022-03-23 19:00:35 -07:00
lib ubsan: no need to unset panic_on_warn in ubsan_epilogue() 2022-03-23 19:00:35 -07:00
LICENSES
mm kasan: no need to unset panic_on_warn in end_report() 2022-03-23 19:00:35 -07:00
net
samples
scripts checkpatch: use python3 to find codespell dictionary 2022-03-23 19:00:34 -07:00
security
sound
tools linux/types.h: remove unnecessary __bitwise__ 2022-03-23 19:00:33 -07:00
usr
virt
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.cocciconfig
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README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.