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
..
configs	arch/defconfig: remove CONFIG_RESOURCE_COUNTERS	2016-05-23 17:04:14 -07:00
drivers	miscdevice: Use module_misc_device() macro	2016-08-31 14:12:35 +02:00
include	um: Don't discard .text.exit section	2016-08-23 23:16:16 +02:00
kernel	nmi_backtrace: generate one-line reports for idle cpus	2016-10-07 18:46:30 -07:00
os-Linux	um: Support kcov	2016-08-04 00:18:06 +02:00
scripts
.gitignore
Kconfig.char
Kconfig.common	Merge branch 'for-linus-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml	2016-08-04 19:37:59 -04:00
Kconfig.debug
Kconfig.net
Kconfig.rest
Kconfig.um	um: Add seccomp support	2016-01-10 21:49:49 +01:00
Makefile	Kbuild: arch: look for generated headers in obtree	2016-07-18 21:31:35 +02:00
Makefile-os-Linux
Makefile-skas