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14a3a26242
Function smp_save_dump_cpus() collects CPU state of a crashed system for secondary CPUs and for the IPL CPU very differently. The Signal Processor stop-and-store-status orders are used for the former while Hardware System Area requests and memcpy_real() routine are called for the latter. In addition a system reset is triggered, which pins smp_save_dump_cpus() function call before CPU and device initialization. Move the collection of IPL CPU state to a later stage when DAT becomes available. That is needed to allow a follow-up rework of memcpy_real() routine. Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@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 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.