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Booting a POWER9 PowerNV system generates a few messages below with "____ptrval____" due to the pointers printed without a specifier extension (i.e unadorned %p) are hashed to prevent leaking information about the kernel memory layout. radix-mmu: Initializing Radix MMU radix-mmu: Partition table (____ptrval____) radix-mmu: Mapped 0x0000000000000000-0x0000000040000000 with 1.00 GiB pages (exec) radix-mmu: Mapped 0x0000000040000000-0x0000002000000000 with 1.00 GiB pages radix-mmu: Mapped 0x0000200000000000-0x0000202000000000 with 1.00 GiB pages radix-mmu: Process table (____ptrval____) and radix root for kernel: (____ptrval____) Signed-off-by: Qian Cai <cai@lca.pw> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1566570120-16529-1-git-send-email-cai@lca.pw
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.