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6727ad9e20
linux/arch/m68k
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Chris Metcalf 6727ad9e20 nmi_backtrace: generate one-line reports for idle cpus 
When doing an nmi backtrace of many cores, most of which are idle, the
output is a little overwhelming and very uninformative.  Suppress
messages for cpus that are idling when they are interrupted and just
emit one line, "NMI backtrace for N skipped: idling at pc 0xNNN".

We do this by grouping all the cpuidle code together into a new
.cpuidle.text section, and then checking the address of the interrupted
PC to see if it lies within that section.

This commit suitably tags x86 and tile idle routines, and only adds in
the minimal framework for other architectures.

Link: http://lkml.kernel.org/r/1472487169-14923-5-git-send-email-cmetcalf@mellanox.com
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Daniel Thompson <daniel.thompson@linaro.org> [arm]
Tested-by: Petr Mladek <pmladek@suse.com>
Cc: Aaron Tomlin <atomlin@redhat.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-07 18:46:30 -07:00
..
68000 m68k: Use vsprintf %pM extension 2015-06-16 16:45:38 +10:00
amiga m68k: Use IS_ENABLED() instead of checking for built-in or module 2016-09-19 11:29:45 +02:00
apollo char/genrtc: remove m68k support 2016-06-04 00:23:28 +02:00
atari m68k: Use IS_ENABLED() instead of checking for built-in or module 2016-09-19 11:29:45 +02:00
bvme6000 char/genrtc: remove m68k support 2016-06-04 00:23:28 +02:00
coldfire m68k: let clk_disable() return immediately if clk is NULL 2016-09-26 12:02:59 +10:00
configs m68k/defconfig: Update defconfigs for v4.8-rc1 2016-08-29 10:24:30 +02:00
emu block: change ->make_request_fn() and users to return a queue cookie 2015-11-07 10:40:46 -07:00
fpsp040
hp300 char/genrtc: remove m68k support 2016-06-04 00:23:28 +02:00
ifpsp060 m68k: Assorted spelling fixes 2016-07-03 14:05:28 +02:00
include m68k: generalize uboot command line support 2016-09-26 12:02:59 +10:00
kernel nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
lib m68k: Remove FSF address 2015-03-15 10:23:30 +01:00
mac m68k: Use IS_ENABLED() instead of checking for built-in or module 2016-09-19 11:29:45 +02:00
math-emu m68k: Assorted spelling fixes 2016-07-03 14:05:28 +02:00
mm m68k: move ColdFire _bootmem_alloc code 2016-09-26 12:02:58 +10:00
mvme16x char/genrtc: remove m68k support 2016-06-04 00:23:28 +02:00
mvme147 char/genrtc: remove m68k support 2016-06-04 00:23:28 +02:00
q40 m68k: Use IS_ENABLED() instead of checking for built-in or module 2016-09-19 11:29:45 +02:00
sun3 char/genrtc: remove m68k support 2016-06-04 00:23:28 +02:00
sun3x char/genrtc: remove m68k support 2016-06-04 00:23:28 +02:00
tools/amiga
install.sh
Kconfig m68k: move CONFIG_FPU set to per-CPU configuration 2016-09-26 12:02:58 +10:00
Kconfig.bus m68k/atari: ROM port ISA adapter support 2013-04-16 21:08:11 +02:00
Kconfig.cpu m68k: move CONFIG_FPU set to per-CPU configuration 2016-09-26 12:02:58 +10:00
Kconfig.debug m68knommu: remove obsolete 68360 support 2016-03-07 10:07:17 +10:00
Kconfig.devices Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k 2014-10-08 05:40:17 -04:00
Kconfig.machine m68knommu: remove obsolete 68360 support 2016-03-07 10:07:17 +10:00
Makefile m68knommu: remove obsolete 68360 support 2016-03-07 10:07:17 +10:00