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Filename Latest commit message Latest commit date
Matthias Kaehlcke 8341f2f222 sysrq: Use panic() to force a crash
sysrq_handle_crash() currently forces a crash by dereferencing a
NULL pointer, which is undefined behavior in C. Just call panic()
instead, which is simpler and doesn't depend on compiler specific
handling of the undefined behavior.

Remove the comment on why the RCU lock needs to be released, it isn't
accurate anymore since the crash now isn't handled by the page fault
handler (for reference: the comment was added by commit 984cf355ae
("sysrq: Fix warning in sysrq generated crash.")). Releasing the lock
is still good practice though.

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-11-27 11:16:35 +01:00
arch Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-11-11 16:41:50 -06:00
block for-linus-20181109 2018-11-09 16:31:51 -06:00
certs
crypto
Documentation Merge 4.20-rc2 into tty-next 2018-11-11 18:48:25 -08:00
drivers sysrq: Use panic() to force a crash 2018-11-27 11:16:35 +01:00
firmware
fs for-4.20-rc1-tag 2018-11-11 16:54:38 -06:00
include include: Add lantiq.h in include/linux/ 2018-11-22 09:03:17 +01:00
init
ipc
kernel Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-11-11 16:37:41 -06:00
lib
LICENSES
mm
net act_mirred: clear skb->tstamp on redirect 2018-11-11 10:21:31 -08:00
samples
scripts builddeb: Fix inclusion of dtbs in debian package 2018-11-11 23:04:53 +09:00
security
sound
tools
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-11-10 06:57:34 -06:00
Makefile Linux 4.20-rc2 2018-11-11 17:12:31 -06:00
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.