Davidlohr Bueso ab51fbab39 futex: Fault/error injection capabilities ... Although futexes are well known for being a royal pita, we really have very little debugging capabilities - except for relying on tglx's eye half the time. By simply making use of the existing fault-injection machinery, we can improve this situation, allowing generating artificial uaddress faults and deadlock scenarios. Of course, when this is disabled in production systems, the overhead for failure checks is practically zero -- so this is very cheap at the same time. Future work would be nice to now enhance trinity to make use of this. There is a special tunable 'ignore-private', which can filter out private futexes. Given the tsk->make_it_fail filter and this option, pi futexes can be narrowed down pretty closely. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Darren Hart <darren@dvhart.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Link: http://lkml.kernel.org/r/1435645562-975-3-git-send-email-dave@stgolabs.net Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2015-07-20 11:45:45 +02:00
..
ABI	platform-drivers-x86 got 4.2	2015-07-01 18:55:34 -07:00
accounting
acpi	ACPI: Constify ACPI device IDs in documentation	2015-06-19 01:14:15 +02:00
aoe
arm	ARM: SoC: driver updates for v4.2	2015-06-26 11:54:29 -07:00
arm64	arm64: use fixmap region for permanent FDT mapping	2015-06-02 16:31:33 +01:00
auxdisplay
backlight
blackfin	Docs: blackfin: Use new switch macro SAMPLE_IRQ_TIMER instead of IRQ_TIMER5	2015-05-07 09:35:14 -06:00
block
blockdev	zram: add dynamic device add/remove functionality	2015-06-25 17:00:36 -07:00
bus-devices
cdrom
cgroups	Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2015-06-26 19:50:04 -07:00
cma
connector
console
cpu-freq	Documentation updates for 4.2	2015-06-24 20:01:36 -07:00
cpuidle
cris
crypto
development-process
device-mapper	dm stats: collect and report histogram of IO latencies	2015-06-17 12:40:40 -04:00
devicetree	- remoteproc fixes/cleanups from Suman Anna	2015-07-03 14:57:50 -07:00
dmaengine	Merge branch 'topic/pxa' into for-linus	2015-06-25 09:21:58 +05:30
DocBook	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2015-06-26 13:18:51 -07:00
driver-model
dvb
early-userspace
EDID
extcon
fault-injection	futex: Fault/error injection capabilities	2015-07-20 11:45:45 +02:00
fb
features	Documentation/features: Explain kernel feature descriptions and add visualization script	2015-06-03 12:59:38 +02:00
filesystems	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-07-04 19:36:06 -07:00
firmware_class
fmc
frv
gpio	Documentation updates for 4.2	2015-06-24 20:01:36 -07:00
hid
hwmon	hwmon: Document which I2C addresses can be probed	2015-07-03 14:39:05 +02:00
i2c	Merge branch 'i2c/for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2015-06-25 18:42:39 -07:00
ia64
ide
infiniband
input	Doc: Change wikipedia's URL from http to https	2015-06-22 10:14:05 -06:00
ioctl	fuse: device fd clone	2015-07-01 16:26:08 +02:00
isdn
ja_JP	Doc: ja_JP: Fix typo in HOWTO	2015-06-08 16:43:09 -06:00
kbuild	kbuild : Fix documentation of INSTALL_HDR_PATH	2015-06-22 09:56:07 -06:00
kdump
ko_KR
laptops	Move freefall program from Documentation/ to tools/	2015-06-08 16:42:07 -06:00
leds	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds	2015-07-01 19:09:11 -07:00
locking
m68k
memory-devices
metag
mic	Char/Misc driver patches for 4.2-rc1	2015-06-26 14:51:15 -07:00
mips
misc-devices	Pratyush Anand has moved	2015-06-25 17:00:38 -07:00
mmc
mn10300
mtd
namespaces
netlabel
networking	netconsole: implement extended console support	2015-06-25 17:00:39 -07:00
nfc	NFC: Fix typo in nfc-hci.txt	2015-06-08 23:15:45 +02:00
nios2
nvdimm	libnvdimm: Non-Volatile Devices	2015-06-26 11:23:38 -04:00
parisc
PCI
pcmcia
phy
platform
power	PM / runtime: add note about re-calling in during device probe()	2015-05-13 00:02:38 +02:00
powerpc	powerpc/tm: Abort syscalls in active transactions	2015-06-19 17:10:28 +10:00
pps	Doc:pps: Fix typo in pps.txt	2015-06-22 09:59:28 -06:00
prctl	Documentation/prctl: don't build tsc tests when cross compiling	2015-06-22 16:05:04 -06:00
pti
ptp
rapidio
RCU	Documentation updates for 4.2	2015-06-24 20:01:36 -07:00
s390	qeth: OSA version of SETBRIDGEPORT command	2015-05-18 12:14:17 -04:00
scheduler	sched/dl/Documentation: Split Section 3	2015-05-19 08:39:21 +02:00
scsi	Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block	2015-06-25 15:22:36 -07:00
security	Smack: allow multiple labels in onlycap	2015-06-02 11:53:42 -07:00
serial	Doc: serial-rs485.txt: update RS485 driver interface	2015-06-12 17:39:51 -07:00
sh
sound	Doc: sound:oss: Fix typo in sound/oss	2015-06-09 17:23:00 +02:00
spi
sysctl	coredump: use from_kuid/kgid when formatting corename	2015-06-25 17:00:43 -07:00
target	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-07-04 14:13:43 -07:00
thermal	thermal: support slope and offset coefficients	2015-05-11 19:46:52 -07:00
timers
tpm
trace	Documentation: tracing: fix grammar	2015-05-13 15:39:04 -04:00
usb	USB patches for 4.2-rc1	2015-06-26 15:59:26 -07:00
vDSO	Documentation/vDSO: don't build tests when cross compiling	2015-06-22 16:04:57 -06:00
video4linux	[media] Documentation: update cardlists	2015-06-09 18:43:47 -03:00
virtual	KVM: x86: mark legacy PCI device assignment as deprecated	2015-06-05 17:26:39 +02:00
vm	zswap: runtime enable/disable	2015-06-25 17:00:37 -07:00
w1	w1: Add support for DS28EA00 sequence to w1-therm	2015-05-24 12:08:59 -07:00
watchdog	watchdog: omap_wdt: early_enable module parameter	2015-07-01 16:43:17 +02:00
wimax
x86	x86/asm/entry/64: Update path names	2015-07-02 11:08:50 +02:00
xtensa
zh_CN	Documentation updates for 4.2	2015-06-24 20:01:36 -07:00
00-INDEX
applying-patches.txt
assoc_array.txt
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
bcache.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
Changes
circular-buffers.txt
clk.txt	clk: Update docs after removal of clk-private.h	2015-05-13 12:32:51 -07:00
coccinelle.txt
CodeOfConflict
CodingStyle	Documentation/CodingStyle: fix example macro parenthesis imbalance	2015-05-07 17:07:41 -06:00
cpu-hotplug.txt
cpu-load.txt
cputopology.txt	Documentation: Update cputopology.txt	2015-05-27 15:22:15 +02:00
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt	Doc: Change wikipedia's URL from http to https	2015-06-22 10:14:05 -06:00
dell_rbu.txt
devices.txt
digsig.txt
DMA-API-HOWTO.txt	Documentation updates for 4.2	2015-06-24 20:01:36 -07:00
DMA-API.txt	PCI: Add pci_bus_addr_t	2015-05-29 17:21:45 -05:00
DMA-attributes.txt
dma-buf-sharing.txt
DMA-ISA-LPC.txt
dontdiff
dynamic-debug-howto.txt
edac.txt	EDAC: Update Documentation/edac.txt	2015-06-24 18:17:40 +02:00
efi-stub.txt
eisa.txt
email-clients.txt
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gdb-kernel-debugging.txt
highuid.txt
HOWTO
hsi.txt
hw_random.txt
hwspinlock.txt	hwspinlock/core: add device tree support	2015-05-02 09:54:30 +03:00
init.txt
initrd.txt
intel_txt.txt
Intel-IOMMU.txt
io_ordering.txt
io-mapping.txt
iostats.txt
IPMI.txt	ipmi:ssif: Ignore spaces when comparing I2C adapter names	2015-05-05 14:24:45 -05:00
IRQ-affinity.txt
IRQ-domain.txt
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kasan.txt	Merge branch 'doc/4.2' into docs-next	2015-06-08 17:04:11 -06:00
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt	Additional ACPICA material for v4.2-rc1	2015-07-02 17:11:28 -07:00
kernel-per-CPU-kthreads.txt
kmemcheck.txt
kmemleak.txt	Doc: Change wikipedia's URL from http to https	2015-06-22 10:14:05 -06:00
kobject.txt
kprobes.txt
kref.txt
kselftest.txt
ldm.txt
local_ops.txt
lockup-watchdogs.txt	watchdog: add watchdog_cpumask sysctl to assist nohz	2015-06-24 17:49:40 -07:00
logo.gif
logo.txt
lzo.txt
magic-number.txt	Documentation/magic-number: Remove SCC_MAGIC	2015-05-13 15:39:04 -04:00
mailbox.txt
Makefile
ManagementStyle
md-cluster.txt
md.txt	doc:md: fix typo in md.txt.	2015-06-23 06:49:44 -06:00
media-framework.txt
memory-barriers.txt	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-06-22 14:54:22 -07:00
memory-hotplug.txt
module-signing.txt
mono.txt
nommu-mmap.txt
ntb.txt	NTB: Rename Intel code names to platform names	2015-07-04 14:09:25 -04:00
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
phy.txt	phy: core: Add devm_of_phy_get_by_index to phy-core	2015-05-11 21:42:23 +05:30
pi-futex.txt
pinctrl.txt	pinctrl: move strict option to pinmux_ops	2015-05-06 14:45:19 +02:00
pnp.txt
preempt-locking.txt	x86/fpu: Rename math_state_restore() to fpu__restore()	2015-05-19 15:47:18 +02:00
printk-formats.txt
pwm.txt
ramoops.txt
rbtree.txt
remoteproc.txt	remoteproc: introduce rproc_get_by_phandle API	2015-06-16 21:12:52 +03:00
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rtc.txt
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
SM501.txt
smsc_ece1099.txt
sparse.txt
stable_api_nonsense.txt
stable_kernel_rules.txt	stable: Update documentation to clarify preferred procedure	2015-05-22 09:38:56 -06:00
static-keys.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches	SubmittingPatches: Clarify requirements for patches directed toward stable	2015-05-14 15:34:52 -04:00
svga.txt
sysfs-rules.txt
sysrq.txt
this_cpu_ops.txt
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt	vfio: powerpc/spapr: Support Dynamic DMA windows	2015-06-11 15:16:55 +10:00
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
vme_api.txt	Documentation: mention vme_master_mmap() in VME API	2015-06-12 17:26:56 -07:00
volatile-considered-harmful.txt
workqueue.txt	workqueue: fix trivial typo in Documentation/workqueue.txt	2015-05-05 09:50:38 -04:00
xillybus.txt
xz.txt
zorro.txt