linux/arch/mn10300
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: delete unnecessary "@:" 2016-04-20 10:36:57 +02:00
configs arch/defconfig: remove CONFIG_RESOURCE_COUNTERS 2016-05-23 17:04:14 -07:00
include mn10300: failing __get_user() and get_user() should zero 2016-09-13 17:49:42 -04:00
kernel nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
lib mn10300: copy_from_user() should zero on access_ok() failure... 2016-09-13 17:49:42 -04:00
mm dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
oprofile
proc-mn2ws0050 char/genrtc: remove mn10300 support 2016-06-04 00:23:03 +02:00
proc-mn103e010 mn10300: use RTC_DRV_CMOS instead of CONFIG_RTC 2016-06-26 01:20:08 +02:00
unit-asb2303 mn10300: don't use module_init in non-modular flash.c code 2015-06-16 14:12:30 -04:00
unit-asb2305 PCI: Revert "PCI: Call pci_read_bridge_bases() from core instead of arch code" 2015-09-15 13:18:04 -05:00
unit-asb2364 mn10300: Remove deprecated IRQF_DISABLED 2014-03-04 21:47:51 +01:00
Kconfig mn10300: use RTC_DRV_CMOS instead of CONFIG_RTC 2016-06-26 01:20:08 +02:00
Kconfig.debug consolidate per-arch stack overflow debugging options 2013-07-04 11:25:39 -07:00
Makefile mn10300: Remove redundant debugging info flag 2014-01-28 10:57:06 +01:00