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Vasily Gorbik
d20d8e5133
Suppress decompressor debug messages by default, similar to regular kernel debug messages that require 'DEBUG' or 'dyndbg' to be enabled (depending on CONFIG_DYNAMIC_DEBUG). Introduce a 'bootdebug' option to enable printing these messages when needed. All messages are still stored in the boot ring buffer regardless. To enable boot debug messages: bootdebug debug Or combine with 'earlyprintk' to print them without delay: bootdebug debug earlyprintk Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Acked-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
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 reStructuredText 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.