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	nios2: dts: 10m50: Add tx-threshold parameter	2016-09-27 12:55:50 +02:00
configs	nios2: add Max10 defconfig	2015-09-08 18:16:02 +08:00
include	nios2: fix __get_user()	2016-09-13 17:49:43 -04:00
kernel	nmi_backtrace: generate one-line reports for idle cpus	2016-10-07 18:46:30 -07:00
lib	nios2: memset: use the right constraint modifier for the %4 output operand	2016-04-27 16:35:55 +08:00
mm	dma-mapping: use unsigned long for dma_attrs	2016-08-04 08:50:07 -04:00
platform	nios2: Remove unnecessary of_platform_populate with default match table	2016-06-23 15:00:31 -05:00
Kconfig	lib/GCD.c: use binary GCD algorithm instead of Euclidean	2016-05-20 17:58:30 -07:00
Kconfig.debug	nios2: add early printk support	2015-02-10 23:21:08 +08:00
Makefile	nios2: Add order-only DTC dependency to %.dtb target	2016-05-19 09:15:00 +08:00