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
..
boards	sh: use common clock framework with device tree boards	2016-08-05 03:29:45 +00:00
boot	sh: add device tree source for J2 FPGA on Mimas v2 board	2016-08-05 03:38:26 +00:00
cchips	genirq: Remove irq argument from irq flow handlers	2015-09-16 15:47:51 +02:00
configs	sh: add defconfig for J-Core J2	2016-08-05 03:38:22 +00:00
drivers	These changes improve device tree support (including builtin DTB), add	2016-08-06 09:00:05 -04:00
include	locking/atomic, arch/sh: Fix ATOMIC_FETCH_OP()	2016-09-22 14:47:02 +02:00
kernel	nmi_backtrace: generate one-line reports for idle cpus	2016-10-07 18:46:30 -07:00
lib	sh: New gcc support	2016-03-17 19:45:44 +00:00
lib64
math-emu	sh: remove unused do_fpu_error	2014-04-03 16:20:52 -07:00
mm	These changes improve device tree support (including builtin DTB), add	2016-08-06 09:00:05 -04:00
oprofile
tools
Kconfig	sh: add SMP support for J2	2016-08-05 03:29:39 +00:00
Kconfig.cpu	arch/sh: remove depends on CONFIG_EXPERIMENTAL	2013-01-21 14:43:13 -08:00
Kconfig.debug
Makefile	sh: add support for J-Core J2 processor	2016-08-05 03:29:31 +00:00