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Catalin Marinas 7ddeb91f5b mm: kmemleak: add support for dumping physical and __percpu object info 
Patch series "mm: kmemleak: Usability improvements".

Following a recent false positive tracking that led to commit 488b5b9eca
("mm: kmemleak: fix upper boundary check for physical address objects"), I
needed kmemleak to give me more debug information about the objects it is
tracking.  This lead to the first patch of this series.  The second patch
changes the kmemleak-test module to show the raw pointers for debugging
purposes.


This patch (of 2):

Currently, echo dump=...  > /sys/kernel/debug/kmemleak only looks up the
main virtual address object tree.  However, for debugging, it's useful to
dump information about physical address and __percpu objects.

Search all three object trees for the dump= command and also print the
type of the object if not virtual: "(phys)" or "(percpu)".  In addition,
allow search by alias (pointer within the object).

Link: https://lkml.kernel.org/r/20250206114537.2597764-1-catalin.marinas@arm.com
Link: https://lkml.kernel.org/r/20250206114537.2597764-2-catalin.marinas@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
History 2025-03-16 22:06:08 -07:00
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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 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.