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
tty: amba-pl011: probe ZTE device from AMBA bus with a pseudo-ID
2016-08-31 15:24:23 +02:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-10-05 10:11:24 -07:00
can: dev: fix deadlock reported after bus-off
2016-09-22 10:01:21 +02:00
dmaengine: hsu: refactor hsu_dma_do_irq() to return int
2016-09-15 21:15:40 +05:30
extcon: adc-jack: Remove the usage of extcon_set_state()
2016-09-10 16:48:46 +05:30
Merge branch 'gpio-irq-validmask' of /home/linus/linux-pinctrl into devel
2016-09-23 14:51:18 +02:00
Second set of iio new device support, features and cleanups for the 4.9 cycle.
2016-09-14 20:42:03 +02:00
irqchip/gicv3-its: Refactor ITS DT init code to prepare for ACPI
2016-09-12 20:32:42 +01:00
- Core Frameworks
2016-10-07 08:35:35 -07:00
net/mlx4: Add VF vlan protocol 802.1ad support
2016-09-24 08:01:27 -04:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-09-12 15:52:44 -07:00
MMC core:
2016-10-05 11:34:53 -07:00
netfilter: conntrack: remove packet hotpath stats
2016-09-12 19:59:39 +02:00
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-10-03 19:43:08 -07:00
phy: Add reset callback
2016-09-10 17:31:39 +05:30
dmaengine updates for 4.8-rc1
2016-10-06 17:13:54 -07:00
power: supply: bq27xxx_battery: allow kernel poll_interval parameter runtime update
2016-09-21 02:08:04 +02:00
qed: Add RoCE ll2 & GSI support
2016-10-03 23:22:47 -04:00
Merge tag 'md/4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
2016-10-07 09:45:43 -07:00
Merge remote-tracking branches 'regulator/topic/of', 'regulator/topic/pv88080', 'regulator/topic/rk808', 'regulator/topic/set-voltage' and 'regulator/topic/tps65218' into regulator-next
2016-09-30 09:13:58 -07:00
Merge remote-tracking branches 'spi/topic/fsl-espi', 'spi/topic/imx', 'spi/topic/jcore', 'spi/topic/loopback' and 'spi/topic/meson' into spi-next
2016-09-30 09:14:10 -07:00
NFS client bugfixes for Linux 4.8
2016-08-12 12:32:24 -07:00
usb: patches for v4.9 merge window
2016-09-14 20:37:50 +02:00
usb: gadget: add a new quirk to avoid skb_reserve in u_ether.c
2016-08-31 10:06:03 +03:00
TTY/Serial patches for 4.9-rc1
2016-10-03 20:11:49 -07:00
ACPI: Add new IORT functions to support MSI domain handling
2016-09-12 20:32:40 +01:00
PCI/AER: Remove duplicate AER severity translation
2016-09-20 14:35:59 -05:00
iommu/amd: Implements irq_set_vcpu_affinity() hook to setup vapic mode for pass-through devices
2016-09-05 12:41:46 +02:00
tty/serial: atmel: fix fractional baud rate computation
2016-09-27 12:54:03 +02:00
block: fix bdi vs gendisk lifetime mismatch
2016-08-04 14:19:16 -06:00
block: fix bdi vs gendisk lifetime mismatch
2016-08-04 14:19:16 -06:00
block: Fix secure erase
2016-08-16 09:16:51 -06:00
add basic register-field manipulation macros
2016-09-09 12:09:24 +03:00
bitmap.h, perf/core: Fix the mask in perf_output_sample_regs()
2016-08-18 10:44:20 +02:00
mm/vmalloc.c: fix align value calculation error
2016-10-07 18:46:26 -07:00
block: rename bio bi_rw to bi_opf
2016-08-07 14:41:02 -06:00
block: rename bio bi_rw to bi_opf
2016-08-07 14:41:02 -06:00
block: Fix secure erase
2016-08-16 09:16:51 -06:00
mm/nobootmem.c: remove duplicate macro ARCH_LOW_ADDRESS_LIMIT statements
2016-10-07 18:46:28 -07:00
bpf: allow access into map value arrays
2016-09-29 01:35:35 -04:00
bpf: allow access into map value arrays
2016-09-29 01:35:35 -04:00
add basic register-field manipulation macros
2016-09-09 12:09:24 +03:00
bvec: avoid variable shadowing warning
2016-08-11 09:41:35 -06:00
uapi: move forward declarations of internal structures
2016-08-02 17:31:41 -04:00
[media] cec-funcs.h: add missing vendor-specific messages
2016-08-22 14:05:49 -03:00
[media] cec: add CEC_LOG_ADDRS_FL_ALLOW_UNREG_FALLBACK flag
2016-08-22 14:00:51 -03:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2016-10-06 09:52:23 -07:00
clk: change the type of clk_hw_onecell_data.num to unsigned int
2016-09-23 14:44:03 -07:00
mm, compaction: restrict full priority to non-costly orders
2016-10-07 18:46:29 -07:00
mm/usercopy: get rid of CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
2016-08-30 10:10:21 -07:00
locking/barriers: Don't use sizeof(void) in lockless_dereference()
2016-09-05 11:50:42 +02:00
- ARM: GICv3 ITS emulation and various fixes. Removal of the old
2016-08-02 16:11:27 -04:00
coresight: etm-perf: pass struct perf_event to source::enable/disable()
2016-08-31 13:05:43 +02:00
nmi_backtrace: generate one-line reports for idle cpus
2016-10-07 18:46:30 -07:00
xen: features and fixes for 4.9-rc0
2016-10-06 11:19:10 -07:00
cpumask: fix code comment
2016-08-02 19:35:24 -04:00
dax: provide an iomap based fault handler
2016-09-19 11:24:50 +10:00
Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-08-07 10:01:14 -04:00
debugfs: introduce a public file_operations accessor
2016-09-21 12:13:31 +02:00
PM / devfreq: event: remove duplicate devfreq_event_get_drvdata()
2016-09-06 13:08:40 +09:00
dma-debug: add support for resource mappings
2016-09-26 22:16:41 +05:30
dma-mapping: use unsigned long for dma_attrs
2016-08-04 08:50:07 -04:00
dmaengine updates for 4.8-rc1
2016-10-06 17:13:54 -07:00
dmaengine: add support to provide error result from a DMA transation
2016-08-08 08:11:42 +05:30
dynamic_debug: add jump label support
2016-08-04 08:50:07 -04:00
* Refactor the EFI memory map code into architecture neutral files
2016-09-13 20:21:55 +02:00
extable.h: add stddef.h so "NULL" definition is not implicit
2016-08-04 10:16:56 +09:30
include: extcon: Fix compilation error caused because of incomplete merge
2016-09-16 08:53:41 +02:00
f2fs: use crc and cp version to determine roll-forward recovery
2016-09-30 10:05:46 -07:00
include/linux: fix excess fence.h kernel-doc notation
2016-08-21 17:43:32 +02:00
bpf: add BPF_CALL_x macros for declaring helpers
2016-09-09 19:36:04 -07:00
firmware: support loading into a pre-allocated buffer
2016-08-02 19:35:10 -04:00
ovl: don't cache acl on overlay layer
2016-09-01 11:11:59 +02:00
fscrypto: require write access to mount to set encryption policy
2016-09-10 01:18:57 -04:00
fanotify: use notification_lock instead of access_lock
2016-10-07 18:46:26 -07:00
This release cycle is rather small. Just a few fixes to tracing.
2016-10-06 11:48:41 -07:00
tracing: Add NMI tracing in hwlat detector
2016-09-02 12:47:55 -04:00
iio: hid-sensors: use asynchronous resume
2016-08-21 20:12:32 +01:00
HID: add missing \n to end of dev_warn messages
2016-09-29 10:40:13 +02:00
drm/tegra: dsi: Enhance runtime power management
2016-08-24 15:58:57 +02:00
thp: reduce usage of huge zero page's atomic counter
2016-10-07 18:46:28 -07:00
mm: remove unnecessary condition in remove_inode_hugepages
2016-10-07 18:46:29 -07:00
hwmon: (core) Add basic pwm attribute support to new API
2016-09-08 21:34:15 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-10-05 10:11:24 -07:00
virt, sched: Add generic vCPU pinning support
2016-09-05 13:52:38 +02:00
i2c: mux: add support for 'i2c-mux', 'i2c-arb' and 'i2c-gate' DT subnodes
2016-08-25 22:11:02 +02:00
i2c: export i2c_adapter_depth()
2016-09-24 10:48:18 +02:00
net: bridge: add per-port multicast flood flag
2016-09-01 22:48:33 -07:00
net: Update API for VF vlan protocol 802.1ad support
2016-09-24 08:01:26 -04:00
vlan: Check for vlan ethernet types for 8021.q or 802.1ad
2016-09-08 17:10:28 -07:00
net: inet: diag: expose the socket mark to privileged processes.
2016-09-08 16:13:09 -07:00
treewide: replace obsolete _refok by __ref
2016-08-02 17:31:41 -04:00
sched/core: Free the stack early if CONFIG_THREAD_INFO_IN_TASK
2016-09-16 09:18:54 +02:00
genirq/affinity: Remove old irq spread infrastructure
2016-09-14 22:11:09 +02:00
Merge branch 'iomap-4.9-dax' into for-next
2016-10-03 09:53:59 +11:00
ipcns: Add a limit on the number of ipc namespaces
2016-08-08 14:42:03 -05:00
ipv6 addrconf: implement RFC7559 router solicitation backoff
2016-09-30 01:54:28 -04:00
Merge branch 'irq/urgent' into irq/core
2016-09-20 23:20:32 +02:00
genirq: Expose interrupt information through sysfs
2016-09-14 15:28:15 +02:00
jiffies: add time comparison functions for 64 bit jiffies
2016-10-07 18:46:26 -07:00
Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-10-03 13:22:39 -07:00
mm/kasan: get rid of ->state in struct kasan_alloc_meta
2016-08-02 17:31:41 -04:00
min/max: remove sparse warnings when they're nested
2016-10-07 18:46:30 -07:00
kexec: add a kexec_crash_loaded() function
2016-08-02 19:35:30 -04:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-10-05 10:11:24 -07:00
kvm: create per-vcpu dirs in debugfs
2016-09-16 16:57:47 +02:00
leds: gpio: introduce gpio_blink_set_t
2016-09-15 16:49:39 +02:00
list: Expand list_first_entry_or_null()
2016-09-14 12:57:43 -07:00
livepatch: use arch_klp_init_object_loaded() to finish arch-specific tasks
2016-08-18 23:41:55 +02:00
lockdep: make MAX_LOCKDEP_SUBCLASSES unconditionally visible
2016-09-24 10:48:32 +02:00
lsm,audit,selinux: Introduce a new audit data type LSM_AUDIT_DATA_FILE
2016-09-19 13:42:38 -04:00
Merge branch 'stable-4.9' of git://git.infradead.org/users/pcmoore/selinux into next
2016-09-19 12:27:10 +10:00
bus: mvebu-mbus: Provide stub function for mvebu_mbus_get_io_win_info()
2016-09-15 21:13:50 +05:30
mcb: Add a dma_device to mcb_device
2016-09-27 12:33:47 +02:00
mm/memblock.c: expose total reserved memory
2016-10-07 18:46:28 -07:00
mm: memcontrol: consolidate cgroup socket tracking
2016-10-07 18:46:29 -07:00
mm, mempolicy: task->mempolicy must be NULL before dropping final reference
2016-09-01 17:52:01 -07:00
miscdevice: Add helper macro for misc device boilerplate
2016-08-31 14:12:35 +02:00
linux/mm.h: canonicalize macro PAGE_ALIGNED() definition
2016-10-07 18:46:30 -07:00
kernel, oom: fix potential pgd_lock deadlock from __mmdrop
2016-10-07 18:46:27 -07:00
include: mman: use bool instead of int for the return value of arch_validate_prot
2016-08-02 19:35:02 -04:00
mm, vmscan: only allocate and reclaim from zones with pages managed by the buddy allocator
2016-09-01 17:52:01 -07:00
modules: add ro_after_init support
2016-08-04 10:16:55 +09:30
mnt: Add a per mount namespace limit on the number of mounts
2016-09-30 12:46:48 -05:00
ipmr, ip6mr: fix scheduling while atomic and a deadlock with ipmr_get_route
2016-09-25 23:41:39 -04:00
ipmr, ip6mr: fix scheduling while atomic and a deadlock with ipmr_get_route
2016-09-25 23:41:39 -04:00
genirq/msi: Add cpumask allocation to alloc_msi_entry
2016-09-14 22:11:08 +02:00
net: Add read_sock proto_op
2016-08-28 23:32:41 -04:00
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-09-25 23:34:19 +02:00
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-09-25 23:34:19 +02:00
netfilter: replace list_head with single linked list
2016-09-25 14:38:48 +02:00
Merge branch 'work.const-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-08-06 09:49:02 -04:00
nmi_backtrace: add more trigger_*_cpu_backtrace() methods
2016-10-07 18:46:30 -07:00
nvme-fabrics: change NQN UUID to big-endian format
2016-08-19 12:00:44 +03:00
of: Add array read functions with min/max size limits
2016-09-15 08:33:01 -05:00
of/serial: move earlycon early_param handling to serial
2016-09-28 17:43:15 +02:00
gpio: OF: localize some gpiochip init functions
2016-10-03 23:38:11 +02:00
dmaengine/ARM: omap-dma: Fix the DMAengine compile test on non OMAP configs
2016-09-28 08:53:14 +05:30
mm, oom: enforce exit_oom_victim on current task
2016-10-07 18:46:28 -07:00
padata: Convert to hotplug state machine
2016-09-19 21:44:30 +02:00
mm/page_owner: don't define fields on struct page_ext by hard-coding
2016-10-07 18:46:27 -07:00
mm/page_owner: move page_owner specific function to page_owner.c
2016-10-07 18:46:27 -07:00
mm: remove page_file_index
2016-10-07 18:46:28 -07:00
PCI changes for the v4.9 merge window:
2016-10-07 11:46:37 -07:00
locking/percpu-rwsem: Add down_read_preempt_disable()
2016-09-22 15:25:54 +02:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-10-05 10:11:24 -07:00
net: ethernet: mediatek: add extension of phy-mode for TRGMII
2016-09-22 08:21:21 -04:00
pidns: Add a limit on the number of pid namespaces
2016-08-08 14:42:01 -05:00
PM / Domains: Add support for removing nested PM domains by provider
2016-09-13 02:49:34 +02:00
Revert "printk: create pr_<level> functions"
2016-08-09 10:48:18 -07:00
nsfs: add ioctl to get a parent namespace
2016-09-22 19:59:41 -05:00
include/linux/property.h: fix typo/compile error
2016-09-30 15:26:52 -07:00
pstore/pmsg: drop bounce buffer
2016-09-08 15:01:10 -07:00
pstore/pmsg: drop bounce buffer
2016-09-08 15:01:10 -07:00
ptp_clock: future-proofing drivers against PTP subsystem becoming optional
2016-09-22 02:18:33 -04:00
spi: pxa2xx: Default thresholds to PXA configuration
2016-09-12 20:01:43 +01:00
mm: filemap: don't plant shadow entries without radix tree node
2016-10-05 09:17:56 -07:00
ratelimit: extend to print suppressed messages on release
2016-08-02 19:35:06 -04:00
locking, rcu, cgroup: Avoid synchronize_sched() in __cgroup_procs_write()
2016-08-18 15:36:59 +02:00
rcu: Provide exact CPU-online tracking for RCU
2016-08-22 09:36:57 -07:00
regmap: Allow longer flag masks for read and write
2016-09-16 12:06:24 +01:00
relayfs: Convert to hotplug state machine
2016-09-06 18:30:20 +02:00
remoteproc: Split driver and consumer dereferencing
2016-10-02 22:50:21 -07:00
rhashtable: Add rhlist interface
2016-09-20 04:43:36 -04:00
rapidio: modify for rev.3 specification changes
2016-08-02 19:35:37 -04:00
rapidio/switches: add driver for IDT gen3 switches
2016-08-02 19:35:38 -04:00
rapidio: modify for rev.3 specification changes
2016-08-02 19:35:37 -04:00
rpmsg: Allow callback to return errors
2016-09-08 22:15:25 -07:00
rtnetlink: fdb dump: optimize by saving last interface markers
2016-09-01 16:56:15 -07:00
thp: reduce usage of huge zero page's atomic counter
2016-10-07 18:46:28 -07:00
sctp: Export struct sctp_info to userspace
2016-08-08 12:51:58 -07:00
Merge branch 'stable-4.9' of git://git.infradead.org/users/pcmoore/selinux into next
2016-09-19 12:27:10 +10:00
seq/proc: modify seq_put_decimal_[u]ll to take a const char *, not char
2016-10-07 18:46:30 -07:00
Revert "tty/serial/8250: use mctrl_gpio helpers"
2016-08-31 15:36:01 +02:00
ACPI: parse SPCR and enable matching console
2016-09-28 17:46:46 +02:00
net: skbuff: Export __skb_vlan_pop
2016-09-22 01:34:20 -04:00
slab: Convert to hotplug state machine
2016-09-06 18:30:20 +02:00
net: smc91x: fix SMC accesses
2016-08-28 23:44:55 -04:00
smp: Add function to execute a function synchronously on a CPU
2016-09-05 13:52:39 +02:00
PM / sleep: enable suspend-to-idle even without registered suspend_ops
2016-09-13 02:17:19 +02:00
mm, swap: add swap_cluster_list
2016-10-07 18:46:27 -07:00
dma-mapping: use unsigned long for dma_attrs
2016-08-04 08:50:07 -04:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2016-10-06 09:52:23 -07:00
scsi: sd: Move DIF protection types to t10-pi.h
2016-09-15 09:51:14 -04:00
tcp: export data delivery rate
2016-09-21 00:23:00 -04:00
thread_info: Use unsigned long for flags
2016-09-24 09:35:06 +02:00
time: Avoid undefined behaviour in timespec64_add_safe()
2016-08-31 14:43:35 -07:00
timekeeping: Include the correct header for errno definitions
2016-09-22 17:02:55 +02:00
torture: TOROUT_STRING(): Insert a space between flag and message
2016-08-22 10:10:12 -07:00
u64_stats: Introduce IRQs disabled helpers
2016-09-30 11:46:40 +02:00
unsafe_[get|put]_user: change interface to use a error target label
2016-08-08 13:02:01 -07:00
fix iov_iter_fault_in_readable()
2016-09-17 14:05:30 -07:00
scsi: introduce a quirk for false cache reporting
2016-09-13 08:08:24 +02:00
Merge branch 'nsfs-ioctls' into HEAD
2016-09-22 20:00:36 -05:00
utsns: Add a limit on the number of uts namespaces
2016-08-08 14:42:02 -05:00
virtio: new feature to detect IOMMU device quirk
2016-08-01 21:44:52 +03:00
VSOCK: Introduce virtio_vsock_common.ko
2016-08-02 02:57:29 +03:00
vme: change LM callback argument to void pointer
2016-08-31 13:20:15 +02:00
sched/wait: Introduce init_wait_entry()
2016-09-30 10:54:03 +02:00
lib/win_minmax: windowed min or max estimator
2016-09-21 00:22:59 -04:00
mm, vmscan: get rid of throttle_vm_writeout
2016-10-07 18:46:27 -07:00
tree-wide: replace config_enabled() with IS_ENABLED()
2016-08-04 08:50:07 -04:00
