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James Clark f30232b20f perf symbols: Update kcore map before merging in remaining symbols 
When loading kcore, the main vmlinux map is updated in the same loop
that merges the remaining maps. If a map that overlaps is merged in
before kcore, the list can become unsortable when the main map addresses
are updated. This will later trigger the check_invariants() assert:

  $ perf record
  $ perf report

  util/maps.c:96: check_invariants: Assertion `map__end(prev) <=
    map__start(map) || map__start(prev) == map__start(map)' failed.
  Aborted

Fix it by moving the main map update prior to the loop so that
maps__merge_in() can split it if necessary.

Fixes: 659ad3492b ("perf maps: Switch from rbtree to lazily sorted array for addresses")
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240507141210.195939-4-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-05-09 18:48:32 -03:00
arch - Add a missing memory barrier in the concurrency ID mm switching 2024-04-21 09:39:36 -07:00
block block-6.9-20240420 2024-04-20 11:28:02 -07:00
certs
crypto
Documentation perf Document: Sysfs event names must be lower or upper case 2024-05-03 17:08:20 -03:00
drivers Char/Misc driver fixes for 6.9-rc5 2024-04-21 10:32:58 -07:00
fs Kernfs bugfix and documentation update for 6.9-rc5 2024-04-21 10:30:21 -07:00
include Char/Misc driver fixes for 6.9-rc5 2024-04-21 10:32:58 -07:00
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kernel - Add a missing memory barrier in the concurrency ID mm switching 2024-04-21 09:39:36 -07:00
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tools perf symbols: Update kcore map before merging in remaining symbols 2024-05-09 18:48:32 -03:00
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.mailmap TTY/Serial driver fixes for 6.9-rc5 2024-04-21 10:27:01 -07:00
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MAINTAINERS Merge remote-tracking branch 'torvalds/master' into perf-tools-next 2024-04-22 13:35:18 -03:00
Makefile Linux 6.9-rc5 2024-04-21 12:35:54 -07:00
README

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.