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
..
asm-offsets.c
dma.c	dma-mapping: use unsigned long for dma_attrs	2016-08-04 08:50:07 -04:00
head.S
hexagon_ksyms.c	arch: hexagon: kernel: hexagon_ksyms.c: export related symbols which various modules need	2014-04-04 18:20:00 -05:00
irq_cpu.c
kgdb.c	hexagon: Fix misspellings in comments.	2016-04-18 12:45:54 +02:00
Makefile	Hexagon: add screen_info for VGA_CONSOLE	2014-04-04 18:20:01 -05:00
module.c
process.c	exit_thread: remove empty bodies	2016-05-20 17:58:30 -07:00
ptrace.c	Hexagon: set the e_flags in user regset view for core dumps	2014-04-04 18:20:02 -05:00
reset.c	arch: hexagon: kernel: reset.c: use function pointer instead of function for pm_power_off and export it	2014-04-04 18:20:00 -05:00
screen_info.c	Hexagon: add screen_info for VGA_CONSOLE	2014-04-04 18:20:01 -05:00
setup.c	hexagon: Fix build failures in linux-next	2014-12-16 13:27:12 -06:00
signal.c	all arches, signal: move restart_block to struct task_struct	2015-02-12 18:54:12 -08:00
smp.c	arch/hotplug: Call into idle with a proper state	2016-03-01 20:36:57 +01:00
stacktrace.c
syscalltab.c
time.c	hexagon/time: Migrate to new 'set-state' interface	2015-09-08 18:43:17 -05:00
trampoline.S
traps.c	Hexagon: fix signal delivery for debug traps	2014-12-16 13:27:39 -06:00
vdso.c	vdso: make arch_setup_additional_pages wait for mmap_sem for write killable	2016-05-23 17:04:14 -07:00
vm_entry.S
vm_events.c
vm_init_segtable.S
vm_ops.S	hexagon: Fix misspellings in comments.	2016-04-18 12:45:54 +02:00
vm_switch.S
vm_vectors.S
vmlinux.lds.S	nmi_backtrace: generate one-line reports for idle cpus	2016-10-07 18:46:30 -07:00