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Andreas Gerstmayr 1a4025f060 perf script report: Fix SEGFAULT when using DWARF mode
When running perf script report with a Python script and a callgraph in
DWARF mode, intr_regs->regs can be 0 and therefore crashing the regs_map
function.

Added a check for this condition (same check as in builtin-script.c:595).

Signed-off-by: Andreas Gerstmayr <agerstmayr@redhat.com>
Tested-by: Kim Phillips <kim.phillips@amd.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Link: http://lore.kernel.org/lkml/20200402125417.422232-1-agerstmayr@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-04-03 09:39:53 -03:00
arch x86/insn: Add Control-flow Enforcement (CET) instructions to the opcode map 2020-03-27 10:38:46 -03:00
block block: Fix partition support for host aware zoned block devices 2020-03-12 07:54:39 -06:00
certs
crypto
Documentation A single commit to handle an erratum in Cavium ThunderX to prevent access 2020-03-15 13:15:16 -07:00
drivers Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2020-03-17 09:38:03 -07:00
fs Fix for yet another subtle futex issue. The futex code used ihold() to 2020-03-15 12:55:52 -07:00
include perf/core: Add PERF_SAMPLE_CGROUP feature 2020-03-27 10:41:44 -03:00
init perf/core: Add PERF_SAMPLE_CGROUP feature 2020-03-27 10:41:44 -03:00
ipc
kernel perf/core: Add PERF_SAMPLE_CGROUP feature 2020-03-27 10:41:44 -03:00
lib
LICENSES
mm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 16:19:19 -07:00
net taprio: Fix sending packets without dequeueing them 2020-03-12 11:25:08 -07:00
samples
scripts parse-maintainers: Mark as executable 2020-03-06 16:29:21 -06:00
security
sound ASoC: Fixes for v5.6 2020-03-07 07:24:36 +01:00
tools perf script report: Fix SEGFAULT when using DWARF mode 2020-04-03 09:39:53 -03:00
usr
virt
.clang-format clang-format: Update with the latest for_each macro list 2020-03-06 21:50:05 +01:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 16:19:19 -07:00
Makefile Linux 5.6-rc6 2020-03-15 15:01:23 -07:00
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 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.