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
..
boot	kbuild: drop redundant "PHONY += FORCE"	2016-04-20 10:38:40 +02:00
configs	unicore32: use the new LED disk activity trigger	2016-06-27 08:58:42 +02:00
include	unicore32: mm: Add missing parameter to arch_vma_access_permitted	2016-08-13 08:53:18 -07:00
kernel	nmi_backtrace: generate one-line reports for idle cpus	2016-10-07 18:46:30 -07:00
lib	unicore32: fix build error for find bitops	2011-11-15 17:13:14 +08:00
mm	dma-mapping: use unsigned long for dma_attrs	2016-08-04 08:50:07 -04:00
.gitignore	unicore32 core architecture: build infrastructure	2011-03-17 09:19:05 +08:00
Kconfig	unicore: do away with ARCH_REQUIRE_GPIOLIB	2016-06-08 09:55:46 +02:00
Kconfig.debug	arch: consolidate CONFIG_STRICT_DEVM in lib/Kconfig.debug	2016-01-09 06:30:49 -08:00
Makefile	unicore32: Use generic init_task	2012-05-05 13:00:26 +02:00