Aaron Tomlin 270750dbc1 hung_task: Display every hung task warning ...

When khungtaskd detects hung tasks, it prints out
backtraces from a number of those tasks.

Limiting the number of backtraces being printed
out can result in the user not seeing the information
necessary to debug the issue. The hung_task_warnings
sysctl controls this feature.

This patch makes it possible for hung_task_warnings
to accept a special value to print an unlimited
number of backtraces when khungtaskd detects hung
tasks.

The special value is -1. To use this value it is
necessary to change types from ulong to int.

Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: oleg@redhat.com
Link: http://lkml.kernel.org/r/1390239253-24030-3-git-send-email-atomlin@redhat.com
[ Build warning fix. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2014-01-25 12:13:33 +01:00

..

ABI

x86: Export x86 boot_params to sysfs

2013-12-29 13:09:07 +00:00

accounting

Documentation/accounting/getdelays.c: avoid strncpy in accounting tool

2013-07-03 16:08:06 -07:00

acpi

ACPI, APEI, EINJ: Changes to the ACPI/APEI/EINJ debugfs interface

2013-12-17 16:04:22 -08:00

aoe

aoe: remove do-nothing NAME="%k" term from example udev rules

2013-09-11 15:59:28 -07:00

arm

Merge tag 'sunxi-core-for-3.13' of https://github.com/mripard/linux into next/soc

2013-10-28 10:19:38 -07:00

arm64

arm64: Use 42-bit address space with 64K pages

2013-11-05 17:23:52 +00:00

auxdisplay

…

backlight

backlight: lp855x_bl: support new LP8555 device

2013-11-13 12:09:14 +09:00

blackfin

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block

null_blk: set use_per_node_hctx param to false

2013-12-21 09:30:33 -07:00

blockdev

floppy: Correct documentation of driver options when used as a module.

2013-11-08 09:10:31 -07:00

bus-devices

ARM: OMAP2+: gpmc: generic timing calculation

2012-11-09 18:07:11 +05:30

cdrom

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cgroups

memcg: support hierarchical memory.numa_stats

2013-11-13 12:09:06 +09:00

connector

connector - documentation: simplify netlink message length assignment

2013-10-02 16:03:51 -04:00

console

TTY:console: update document console.txt

2013-05-21 10:21:57 -07:00

cpu-freq

cpufreq: Implement light weight ->target_index() routine

2013-10-25 22:42:24 +02:00

cpuidle

cpuidle: remove cpuidle_unregister_governor()

2013-10-30 01:21:24 +01:00

cris

…

crypto

drivers/dma: remove unused support for MEMSET operations

2013-07-03 16:07:42 -07:00

development-process

Documentation: development-process: Update -mm and -next URLs

2013-07-25 12:37:24 +02:00

device-mapper

dm cache: update Documentation for invalidate_cblocks's range syntax

2013-12-10 16:35:15 -05:00

devicetree

Merge branch 'clockevents/3.14' of git://git.linaro.org/people/daniel.lezcano/linux into timers/core

2014-01-14 14:33:29 +01:00

DocBook

Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2013-12-12 11:06:13 -08:00

driver-model

Merge tag 'spi-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

2013-11-12 15:01:39 +09:00

dvb

[media] get_dvb_firmware: Fix the location of firmware for Terratec HTC

2013-01-01 11:18:26 -02:00

early-userspace

Documentation: remove reference to 2.7 kernel in early-userspace

2013-08-20 12:47:28 +02:00

EDID

drm: Add 1600x1200 (UXGA) screen resolution to the built-in EDIDs

2013-04-12 14:06:16 +10:00

extcon

extcon: Simplify extcon_dev_register() prototype by removing unnecessary parameter

2013-09-27 09:37:01 +09:00

fault-injection

doc: fix quite a few typos within Documentation

2012-11-19 14:28:24 +01:00

fb

Documentation/fb/viafb.modes fix a typo

2013-08-20 12:41:11 +02:00

filesystems

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2013-11-22 08:38:55 -08:00

firmware_class

firmware loader: document firmware cache mechanism

2012-11-14 15:07:18 -08:00

fmc

doc: Fix typo "is is" in Documentations

2013-08-27 10:50:52 +02:00

frv

…

gpio

Documentation: gpiolib: add 00-INDEX file

2013-12-03 13:10:48 +01:00

hid

HID: uhid: use generic hidinput_input_event()

2013-07-31 10:33:05 +02:00

hwmon

Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging

2013-11-15 16:35:10 -08:00

i2c

i2c: i801: Add Device IDs for Intel Wildcat Point-LP PCH

2013-11-14 18:38:04 +01:00

i2o

…

ia64

Fix example error_injection_tool

2013-04-02 09:39:55 -07:00

ide

…

infiniband

IB/ipoib: Add rtnl_link_ops support

2012-09-20 16:49:17 -04:00

input

Input: clarify gamepad API ABS values

2013-10-15 23:42:07 -07:00

ioctl

ALSA: add DICE driver

2013-10-17 21:18:32 +02:00

isdn

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ja_JP

HOWTO ja_JP sync

2013-07-24 22:06:34 -07:00

kbuild

Documentation/kbuild/kconfig.txt: 'make listnewconfig' replaces: yes "" | make oldconfig

2013-10-08 23:51:50 +02:00

kdump

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-07-04 11:40:58 -07:00

kmsg/s390

s390/zcrypt: add support for EP11 coprocessor cards

2013-12-18 17:37:15 +01:00

ko_KR

Correct unfaithful translation on HOWTO in ko_KR

2013-08-12 17:43:13 -07:00

laptops

thinkpad-acpi: Add mute and mic-mute LED functionality

2013-10-17 14:38:44 +02:00

leds

Documentation: leds-lp5521,lp5523: update device attribute information

2013-08-26 17:22:13 -07:00

m68k

block: remove refs to XD disks from documentation

2013-05-17 15:17:12 +02:00

make

…

memory-devices

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metag

doc: fix misspellings with 'codespell' tool

2013-05-28 12:02:12 +02:00

mic

misc: mic: Fix endianness issues.

2013-11-27 11:03:38 -08:00

mips

…

misc-devices

doc: fix misspellings with 'codespell' tool

2013-05-28 12:02:12 +02:00

mmc

mmc: core: Add in support to expose PRV for v4 MMCs

2013-03-22 12:10:42 -04:00

mn10300

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mtd

doc: Fix typo "is is" in Documentations

2013-08-27 10:50:52 +02:00

namespaces

userns: Recommend use of memory control groups.

2013-01-26 22:20:06 -08:00

netlabel

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networking

ipv4: improve documentation of ip_no_pmtu_disc

2013-12-17 15:20:15 -05:00

nfc

NFC: Update pn544 documentation

2013-01-10 01:27:46 +01:00

parisc

parisc: document the shadow registers

2013-07-09 22:09:19 +02:00

PCI

PCI: Update pci_find_slot() description in pci.txt

2013-09-25 15:43:33 -06:00

pcmcia

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power

Merge tag 'pm+acpi-2-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2013-11-20 13:25:04 -08:00

powerpc

powerpc: Update the 00-Index in Documentation/powerpc

2013-08-27 14:44:27 +10:00

pps

USB: serial: invoke dcd_change ldisc's handler.

2013-09-26 09:45:40 -07:00

prctl

seccomp: Make syscall skipping and nr changes more consistent

2012-10-02 21:14:29 +10:00

pti

…

ptp

ptp: add the PTP_SYS_OFFSET ioctl to the testptp program

2013-09-23 16:46:17 -04:00

rapidio

doc: Fix typo in doucmentations

2013-07-25 12:34:15 +02:00

RCU

Merge branches 'doc.2013.12.03a', 'fixes.2013.12.12a', 'rcutorture.2013.12.03a' and 'sparse.2013.12.12a' into HEAD

2013-12-12 12:35:38 -08:00

s390

s390/s390dbf: add debug_level_enabled() function

2013-10-24 17:16:53 +02:00

scheduler

Merge tag 'h8300-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

2013-11-12 14:13:14 +09:00

scsi

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2013-09-15 17:41:30 -04:00

security

ima: new templates management mechanism

2013-10-25 17:17:04 -04:00

serial

serial: core: delete .set_wake() callback

2013-10-16 13:16:19 -07:00

sh

…

sound

ALSA: Fix typo in documentation/alsa

2013-10-29 11:38:04 +01:00

spi

spi/documentation: Fix usage of __initdata

2013-08-20 12:52:28 +02:00

sysctl

hung_task: Display every hung task warning

2014-01-25 12:13:33 +01:00

target

target: Remove TF_CIT_TMPL macro

2013-10-16 13:35:02 -07:00

thermal

thermal: thermal_core: allow binding with limits on bind_params

2013-09-03 09:10:24 -04:00

timers

doc: add missing files to timers/00-INDEX

2013-10-27 21:55:50 +00:00

tpm

drivers/tpm: add xen tpmfront interface

2013-08-09 10:57:06 -04:00

trace

Documentation/trace/tracepoints.txt: add links to TRACE_EVENT documentation

2013-11-13 12:09:32 +09:00

usb

doc: usb: Fix typo in Documentation/usb/gadget_configs.txt

2013-10-31 13:31:39 +01:00

vDSO

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video4linux

[media] V4L: Add support for integer menu controls with standard menu items

2013-08-18 07:12:59 -03:00

virtual

Merge branch 'kvm-ppc-queue' of git://github.com/agraf/linux-2.6 into queue

2013-11-04 10:20:57 +02:00

vm

x86, mm: do not leak page->ptl for pmd page tables

2013-11-21 16:42:28 -08:00

w1

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-07-04 11:40:58 -07:00

watchdog

watchdog: delete mpcore_wdt driver

2013-07-11 21:47:58 +02:00

wimax

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x86

x86: Add xloadflags bit for EFI runtime support on kexec

2013-12-29 13:09:06 +00:00

xtensa

xtensa: document MMUv3 setup sequence

2013-05-09 01:07:09 -07:00

zh_CN

Documentation/zh_CN/SubmittingPatches fix a typo

2013-08-20 12:41:25 +02:00

.gitignore

…

00-INDEX

doc: fix a typo in Documentation/00-INDEX

2013-08-27 10:53:07 +02:00

applying-patches.txt

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assoc_array.txt

KEYS: Fix multiple key add into associative array

2013-12-02 11:24:18 +00:00

atomic_ops.txt

Documentation: Memory barrier semantics of atomic_xchg()

2013-01-08 14:14:55 -08:00

bad_memory.txt

…

basic_profiling.txt

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bcache.txt

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-07-04 11:40:58 -07:00

binfmt_misc.txt

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braille-console.txt

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bt8xxgpio.txt

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btmrvl.txt

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BUG-HUNTING

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bus-virt-phys-mapping.txt

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cachetlb.txt

Documentation: fix typo and update version in cachetlb.txt

2013-08-20 12:46:52 +02:00

Changes

remove obsolete references to powertweak

2013-11-27 20:34:32 -08:00

circular-buffers.txt

documentation: Update circular buffer for load-acquire/store-release

2013-12-03 10:08:57 -08:00

clk.txt

clk: add support for clock reparent on set_rate

2013-08-19 12:27:17 -07:00

coccinelle.txt

Coccinelle: Update information about the minimal version required

2013-07-03 22:58:20 +02:00

CodingStyle

Documentation/CodingStyle: allow multiple return statements per function

2013-07-03 16:08:01 -07:00

cpu-hotplug.txt

MAINTAINERS: update Zwane Mwaikambo's e-mail address

2013-11-13 12:09:14 +09:00

cpu-load.txt

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cputopology.txt

doc: Documentation/cputopology.txt fix typo

2013-09-04 12:59:47 +02:00

crc32.txt

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dcdbas.txt

…

debugging-modules.txt

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debugging-via-ohci1394.txt

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dell_rbu.txt

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devices.txt

cuse: add fix minor number to /dev/cuse

2013-10-01 16:44:54 +02:00

digsig.txt

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DMA-API-HOWTO.txt

DMA-API: provide a helper to set both DMA and coherent DMA masks

2013-09-17 15:32:37 +01:00

DMA-API.txt

DMA-API: provide a helper to set both DMA and coherent DMA masks

2013-09-17 15:32:37 +01:00

DMA-attributes.txt

doc: Documentation/DMA-attributes.txt fix typo

2013-10-14 15:50:53 +02:00

dma-buf-sharing.txt

dma-buf: Expose buffer size to userspace (v2)

2013-09-10 11:36:45 +05:30

DMA-ISA-LPC.txt

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dmaengine.txt

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dmatest.txt

dmatest: add a 'wait' parameter

2013-11-14 11:04:40 -08:00

dontdiff

x86: remove offsets.h from .gitignore and dontdiff

2012-11-19 14:10:53 +01:00

dynamic-debug-howto.txt

doc: fix misspellings with 'codespell' tool

2013-05-28 12:02:12 +02:00

edac.txt

Merge branch 'devel'

2012-07-29 21:11:05 -03:00

efi-stub.txt

EFI stub documentation updates

2013-09-25 12:34:32 +01:00

eisa.txt

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email-clients.txt

…

flexible-arrays.txt

…

futex-requeue-pi.txt

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gcov.txt

gcov: compile specific gcov implementation based on gcc version

2013-11-13 12:09:34 +09:00

highuid.txt

…

HOWTO

Documentation: Updated broken link in HOWTO

2013-06-03 14:22:57 -07:00

hw_random.txt

hwrng: Fix a wrong comment in Documentation/hw_random.txt

2013-03-10 18:16:36 +08:00

hwspinlock.txt

doc: documentation/hwspinlock.txt fix typo

2013-08-27 10:46:02 +02:00

init.txt

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initrd.txt

…

intel_txt.txt

Documentation: remove depends on CONFIG_EXPERIMENTAL

2013-01-11 11:38:03 -08:00

Intel-IOMMU.txt

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io_ordering.txt

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io-mapping.txt

…

iostats.txt

iostats.txt: add easy-to-find description for field 6

2013-04-29 15:18:50 +02:00

IPMI.txt

ipmi: add options to disable openfirmware and PCI scanning

2013-02-27 19:10:21 -08:00

IRQ-affinity.txt

doc: fix a typo about irq affinity

2013-08-20 12:59:18 +02:00

IRQ-domain.txt

irqdomain: update documentation

2012-12-05 23:52:10 +00:00

IRQ.txt

…

irqflags-tracing.txt

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isapnp.txt

…

java.txt

…

kernel-doc-nano-HOWTO.txt

kernel-doc: Update references to SGML to refs to XML instead.

2013-05-28 12:02:11 +02:00

kernel-docs.txt

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kernel-parameters.txt

Merge branch 'x86-kaslr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-01-20 14:45:50 -08:00

kernel-per-CPU-kthreads.txt

kthread: Add pointer to vmstat-avoidance patch

2013-09-25 06:49:46 -07:00

kmemcheck.txt

Documentation/kmemcheck: update kmemcheck documentation

2013-08-27 10:47:05 +02:00

kmemleak.txt

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kobject.txt

Documentation: Fix "struct kobj_type" to include newer members.

2012-09-04 16:06:34 -07:00

kprobes.txt

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kref.txt

kref: Add kref_get_unless_zero documentation

2012-11-28 18:36:06 +10:00

ldm.txt

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local_ops.txt

…

lockdep-design.txt

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lockstat.txt

lockstat: Report avg wait and hold times

2013-10-09 08:19:08 +02:00

lockup-watchdogs.txt

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logo.gif

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logo.txt

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magic-number.txt

wanrouter: completely decouple obsolete code from kernel.

2013-01-31 19:20:33 -05:00

Makefile

…

ManagementStyle

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md.txt

md: remove doubled description for sync_max, merging it within sync_min/sync_max

2013-07-03 09:43:28 +10:00

media-framework.txt

Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2013-07-13 12:09:57 -07:00

memory-barriers.txt

locking/doc: Rename LOCK/UNLOCK to ACQUIRE/RELEASE

2014-01-12 10:37:13 +01:00

memory-hotplug.txt

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-09-06 09:36:28 -07:00

module-signing.txt

Add Documentation/module-signing.txt file

2013-12-13 15:59:11 +00:00

mono.txt

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mutex-design.txt

locking/doc: Update references to kernel/mutex.c

2013-11-11 12:41:33 +01:00

nommu-mmap.txt

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numastat.txt

…

oops-tracing.txt

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padata.txt

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parport-lowlevel.txt

…

parport.txt

…

percpu-rw-semaphore.txt

percpu-rw-semaphore: fix documentation typos

2012-09-26 19:56:15 +02:00

phy.txt

drivers: phy: add generic PHY framework

2013-09-27 17:35:41 -07:00

pi-futex.txt

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pinctrl.txt

pinctrl: add documentation for pinctrl_get_group_pins()

2013-10-16 15:35:21 +02:00

pnp.txt

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preempt-locking.txt

…

printk-formats.txt

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-09-06 09:36:28 -07:00

pwm.txt

Documentation/pwm: Fix trivial typos

2013-10-24 10:51:33 +02:00

ramoops.txt

pstore/ftrace: Convert to its own enable/disable debugfs knob

2012-09-06 22:16:58 -07:00

rbtree.txt

rbtree: move augmented rbtree functionality to rbtree_augmented.h

2012-10-09 16:22:40 +09:00

remoteproc.txt

remoteproc: add rproc_report_crash function to notify rproc crashes

2012-09-18 12:53:22 +03:00

rfkill.txt

…

robust-futex-ABI.txt

Documentation/robust-futex-API: Count properly to 4

2013-11-30 14:08:28 +01:00

robust-futexes.txt

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rpmsg.txt

Documentation: remove __dev* attributes.

2013-01-03 15:57:16 -08:00

rt-mutex-design.txt

sched: Rename sched.c as sched/core.c in comments and Documentation

2013-06-19 12:58:42 +02:00

rt-mutex.txt

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rtc.txt

rtc: add ability to push out an existing wakealarm using sysfs

2013-07-03 16:07:54 -07:00

SAK.txt

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SecurityBugs

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serial-console.txt

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sgi-ioc4.txt

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sgi-visws.txt

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SM501.txt

…

smsc_ece1099.txt

mfd: smsc: Add support for smsc gpio io/keypad driver

2012-10-01 15:27:48 +02:00

sparse.txt

Documentation/sparse.txt: document context annotations for lock checking

2012-12-17 17:15:23 -08:00

spinlocks.txt

sched: Rename sched.c as sched/core.c in comments and Documentation

2013-06-19 12:58:42 +02:00

stable_api_nonsense.txt

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stable_kernel_rules.txt

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static-keys.txt

…

SubmitChecklist

Finally eradicate CONFIG_HOTPLUG

2013-06-03 14:20:18 -07:00

SubmittingDrivers

…

SubmittingPatches

Documentation/SubmittingPatches: Request summaries for commit references

2013-08-20 12:58:15 +02:00

svga.txt

…

sysfs-rules.txt

doc: Fix typo in doucmentations

2013-07-25 12:34:15 +02:00

sysrq.txt

sysrq: Allow magic SysRq key functions to be disabled through Kconfig

2013-10-16 13:01:44 -07:00

this_cpu_ops.txt

percpu: add documentation on this_cpu operations

2013-04-04 10:24:53 -07:00

unaligned-memory-access.txt

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unicode.txt

…

unshare.txt

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vfio.txt

vfio: fix documentation

2013-09-05 16:36:21 -06:00

VGA-softcursor.txt

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vgaarbiter.txt

…

video-output.txt

…

vme_api.txt

…

volatile-considered-harmful.txt

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workqueue.txt

workqueue: Correct/Drop references to gcwq in Documentation

2013-08-21 10:32:09 -04:00

ww-mutex-design.txt

mutex: Add support for wound/wait style locks

2013-06-26 12:10:56 +02:00

xz.txt

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zorro.txt

zorro/UAPI: Disintegrate include/linux/zorro*.h

2013-11-26 11:09:08 +01:00