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Rik van Riel 5045bcae0f sysrq: add show-backtrace-on-all-cpus function 
SysRQ-P is not always useful on SMP systems, since it usually ends up showing
the backtrace of a CPU that is doing just fine, instead of the backtrace of
the CPU that is having problems.

This patch adds SysRQ show-all-cpus(L), which shows the backtrace of every
active CPU in the system.  It skips idle CPUs because some SMP systems are
just too large and we already know what the backtrace of the idle task looks
like.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Rik van Riel <riel@redhat.com>
Randy Dunlap <randy.dunlap@oracle.com>
Cc: <lwoodman@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2008-04-29 08:06:03 -07:00
..
ABI Merge git://git.infradead.org/~dedekind/ubi-2.6 2008-04-23 09:57:25 +01:00
DocBook docbook: fix bitops fatal filename error 2008-04-28 10:26:51 -07:00
PCI PCI: doc/pci: create Documentation/PCI/ and move files into it 2008-04-20 21:46:51 -07:00
RCU remove final fastcall users 2008-02-13 16:21:18 -08:00
accounting getdelays: fix gcc warnings 2008-02-08 09:22:41 -08:00
acpi ACPI: Remove ACPI_CUSTOM_DSDT_INITRD option 2008-03-15 11:58:04 -07:00
aoe aoe: user can ask driver to forget previously detected devices 2008-02-08 09:22:31 -08:00
arm [MTD] [NAND] S3C2410 Large page NAND support 2008-04-22 21:39:16 +01:00
auxdisplay documentation: convert the Documentation directory to UTF-8 2007-05-09 08:58:19 +02:00
blackfin Blackfin arch: kgdb specific code 2007-06-29 16:35:17 +08:00
block DOCUMENTATION: Use newer DEFINE_SPINLOCK macro in docs. 2008-04-21 22:44:50 +00:00
cdrom cdrom: make unregister_cdrom() return void 2008-04-21 09:50:08 +02:00
connector some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
console Typo: fro -> from 2007-07-19 10:04:47 -07:00
controllers Memory controller: rename to Memory Resource Controller 2008-03-04 16:35:12 -08:00
cpu-freq [ARM] pxa: add cpufreq support 2008-01-26 15:07:52 +00:00
cpuidle cpuidle: Add Documentation 2008-02-14 00:16:13 -05:00
cris
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crypto [CRYPTO] doc: Update api-intro.txt 2008-01-11 08:16:14 +11:00
device-mapper dm crypt: add documentation 2008-04-25 13:27:03 +01:00
driver-model Driver core: Update some prototypes in platform.txt 2008-02-02 15:14:49 -08:00
dvb V4L/DVB (7077): bt878: remove handcrafted PCI subsystem ID check 2008-01-25 19:05:22 -02:00
early-userspace Documentation: Remove last references to BitKeeper. 2008-04-21 22:19:05 +00:00
fault-injection fault-injection: fix example scripts in documentation 2007-07-16 09:05:45 -07:00
fb fbdev: intelfb: add support for the Intel Integrated Graphics Controller 965G/965GM 2008-04-28 08:58:41 -07:00
filesystems fat: Add allow_utime option 2008-04-28 08:58:47 -07:00
firmware_class firmware_sample_driver.c: fix coding style 2008-04-21 22:23:30 +00:00
frv move frv docs one level up 2008-02-03 15:54:28 +02:00
hwmon hwmon: New driver for Analog Devices ADT7473 sensor chip 2008-02-18 21:51:29 -05:00
i2c i2c-i801: Add support for the ICH10 2008-02-24 20:03:42 +01:00
i2o documentation: convert the Documentation directory to UTF-8 2007-05-09 08:58:19 +02:00
i386 x86, boot: Document for linked list of struct setup_data 2008-04-26 21:34:42 +02:00
ia64 KVM: ia64: Add a guide about how to create kvm guests on ia64 2008-04-27 12:01:14 +03:00
ide gayle: add "doubler" parameter 2008-04-27 15:38:30 +02:00
infiniband IB/umad: Add P_Key index support 2007-10-09 19:59:15 -07:00
input Input: add keyboard notifier documentation 2008-03-14 11:54:19 -04:00
ioctl [PATCH] Document how to decode an IOCTL number 2006-12-10 09:55:40 -08:00
isdn spelling fixes: Documentation/ 2007-10-20 01:30:25 +02:00
ja_JP Fix broken utf-8 encodings in ja_JP translation of stable_kernel_rules.txt 2008-02-21 15:27:06 -08:00
kbuild kconifg: 'select' considered less evil 2008-04-28 22:59:31 +02:00
kdump Add documentation for extended crashkernel syntax 2007-10-19 11:53:51 -07:00
ko_KR HOWTO: update misspelling and word incorrected 2007-12-17 10:33:19 -08:00
laptops Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-03-18 00:37:55 -07:00
lguest lguest: comment documentation update. 2008-03-28 11:05:54 +11:00
m68k [SCSI] 53c7xx: fix removal fallout 2008-01-11 18:22:30 -06:00
make Documentation/make/headers_install.txt 2007-10-17 08:43:05 -07:00
mips au1xxx-ide: fix MWDMA support 2008-04-26 22:25:22 +02:00
mn10300 mn10300: add the MN10300/AM33 architecture to the kernel 2008-02-08 09:22:30 -08:00
namespaces The namespaces compatibility list doc 2007-11-29 09:24:53 -08:00
netlabel Fix occurrences of "the the " 2007-05-09 08:57:56 +02:00
networking phylib: Add support for board-level PHY fixups 2008-04-25 02:08:52 -04:00
parisc
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pcmcia pcmcia: replace kio_addr_t with unsigned int everywhere 2008-02-05 09:44:08 -08:00
power PM: Handle device registrations during suspend/resume 2008-04-19 19:10:24 -07:00
powerpc fbdev: powerpc: driver for Freescale 8610 and 5121 DIU 2008-04-28 08:58:40 -07:00
prctl generic, x86: add tests for prctl PR_GET_TSC and PR_SET_TSC 2008-04-19 19:19:55 +02:00
s390 KVM: s390: API documentation 2008-04-27 12:00:48 +03:00
scheduler sched: better rt-group documentation 2008-04-19 19:45:01 +02:00
scsi [SCSI] st: show options currently set in sysfs 2008-04-07 12:15:40 -05:00
serial
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sh sh: SH7722 clock framework support. 2007-05-07 02:11:56 +00:00
sound [ALSA] hda - Add support of AD1989A/AD1989B 2008-04-24 12:00:36 +02:00
sparc [SPARC/64]: Prepare to remove of_platform_driver name. 2007-10-13 21:53:11 -07:00
spi documentation: move spidev_fdx example to its own source file 2008-04-28 08:58:31 -07:00
sysctl Documentation: sysctl/kernel.txt: fix documentation reference 2008-02-13 16:21:20 -08:00
telephony Add a 00-INDEX file to Documentation/telephony/ 2007-10-17 08:43:05 -07:00
thermal thermal: fix generic thermal I/F for hwmon 2008-03-13 01:49:01 -04:00
timers Documentation: move timer related documentation to a single place 2008-04-17 12:22:31 +02:00
uml Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
usb USB: add documentation about callbacks 2008-04-24 21:16:53 -07:00
video4linux V4L/DVB (7677): saa7134: Add/fix Beholder entries 2008-04-24 14:09:46 -03:00
vm Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 2008-04-28 14:08:56 -07:00
w1 w1-gpio: add GPIO w1 bus master driver 2008-02-06 10:41:15 -08:00
watchdog [WATCHDOG] clarify watchdog operation in documentation 2008-01-18 21:23:05 +00:00
x86 x86: PAT documentation 2008-04-17 17:41:19 +02:00
x86_64 x86: add gbpages switches 2008-04-17 17:40:45 +02:00
zh_CN Chinese: add translation of Codingstyle 2008-01-24 20:40:04 -08:00
00-INDEX documentation: remove smart-config.txt 2008-04-25 18:24:20 -07:00
BUG-HUNTING Documentation: add hint about call traces & module symbols to BUG-HUNTING 2008-02-06 10:41:09 -08:00
Changes [x86 setup] Document grub < 0.93 as broken 2007-08-02 13:50:43 -04:00
CodingStyle CodingStyle: relax the 80-cole rule 2007-10-17 08:42:55 -07:00
DMA-API.txt dma_free_coherent() needs irqs enabled (sigh) 2007-10-12 15:03:15 -07:00
DMA-ISA-LPC.txt Fix typos in /Documentation : 'T'' 2006-11-30 04:55:36 +01:00
DMA-mapping.txt Update DMA-mapping documentation 2007-10-17 08:43:06 -07:00
HOWTO Various fixes to Documentation/HOWTO 2008-04-25 11:23:56 -06:00
IO-mapping.txt
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IPMI.txt IPMI: new NMI handling 2007-10-18 14:37:32 -07:00
IRQ-affinity.txt
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IRQ.txt
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Intel-IOMMU.txt Intel IOMMU: Iommu Gfx workaround 2007-10-22 08:13:19 -07:00
MSI-HOWTO.txt PCI: Remove no longer correct documentation regarding MSI vector assignment 2007-10-12 15:03:16 -07:00
ManagementStyle Fix this Paul Simon song's name 2007-09-13 08:11:10 -07:00
README.DAC960
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README.cycladesZ
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SAK.txt
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SM501.txt Tweak Documentation/SM501.txt 2007-10-17 08:43:06 -07:00
SecurityBugs
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Smack.txt Smack: Simplified Mandatory Access Control Kernel 2008-02-05 09:44:20 -08:00
SubmitChecklist Documentation: prune redundant SubmitChecklist items 2008-02-13 16:21:18 -08:00
SubmittingDrivers Update 2.4 maintainer in document 2007-10-20 02:02:12 +02:00
SubmittingPatches Correct a few trivial tree details in Documentation/SubmittingPatches 2008-04-21 22:12:32 +00:00
VGA-softcursor.txt
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applying-patches.txt
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atomic_ops.txt documentation: atomic_add_unless() doesn't imply mb() on failure 2008-02-23 17:52:36 -08:00
basic_profiling.txt
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binfmt_misc.txt documentation: convert the Documentation directory to UTF-8 2007-05-09 08:58:19 +02:00
cachetlb.txt remove unused flush_tlb_pgtables 2007-10-19 11:53:34 -07:00
cciss.txt Documentation: cciss: detecting failed drives 2007-05-08 11:15:10 -07:00
cgroups.txt cgroup: fix and update documentation 2008-02-23 17:13:24 -08:00
cli-sti-removal.txt DOCUMENTATION: Use newer DEFINE_SPINLOCK macro in docs. 2008-04-21 22:44:50 +00:00
computone.txt remove mentionings of devfs in documentation 2006-10-03 22:17:48 +02:00
cpqarray.txt
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cpu-hotplug.txt [S390] Get rid of additional_cpus kernel parameter. 2008-01-26 14:11:15 +01:00
cpu-load.txt [PATCH] Documentation: CPU load calculation description 2007-03-01 14:53:39 -08:00
cpusets.txt sched, cpuset: customize sched domains, docs 2008-04-19 19:45:00 +02:00
cputopology.txt Fix typos in Documentation/: 'D'-'E' 2006-10-03 22:47:42 +02:00
dcdbas.txt
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debugging-modules.txt Documentation: Clarify when module debugging actually works. 2008-02-03 15:27:38 +02:00
debugging-via-ohci1394.txt firewire: fw-ohci: add option for remote debugging 2008-04-18 17:55:33 +02:00
dell_rbu.txt Fix typos in Documentation/: 'N'-'P' 2006-10-03 22:52:05 +02:00
devices.txt typo fixes 2007-10-20 01:34:40 +02:00
digiepca.txt
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dontdiff dontdiff: ignore timeconst.h 2008-04-28 22:51:56 +02:00
edac.txt move edac.txt two levels up 2008-02-07 08:42:17 -08:00
eisa.txt Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
email-clients.txt email-clients.txt: sylpheed is OK at IMAP 2008-02-07 08:42:17 -08:00
exception.txt Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
feature-removal-schedule.txt mm: remove nopage 2008-04-28 08:58:18 -07:00
floppy.txt
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gpio.txt gpio: define gpio_is_valid() 2008-04-28 08:58:34 -07:00
hayes-esp.txt
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highuid.txt [SPARC]: Remove SunOS and Solaris binary support. 2008-04-21 15:10:15 -07:00
hpet.txt hpet.txt: broken link fix 2007-07-31 15:39:42 -07:00
hw_random.txt hw_random doc updates 2008-03-24 19:22:19 -07:00
initrd.txt use the newc archive format as requested by initramfs 2008-02-03 14:54:41 +02:00
io_ordering.txt
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ioctl-number.txt KVM: Register ioctl range 2008-04-27 12:01:16 +03:00
iostats.txt Enhanced partition statistics: documentation update 2008-02-08 12:42:11 +01:00
irqflags-tracing.txt [PATCH] lockdep: irqtrace subsystem, docs 2006-07-03 15:27:03 -07:00
isapnp.txt
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java.txt Documentation/java.txt: typo and grammar fixes 2007-10-20 02:37:21 +02:00
kernel-doc-nano-HOWTO.txt [PATCH] Discuss a couple common errors in kernel-doc usage. 2007-02-11 10:51:32 -08:00
kernel-docs.txt typo fixes 2007-10-20 01:34:40 +02:00
kernel-parameters.txt ide: remove obsoleted "idex=" kernel parameters 2008-04-27 15:38:24 +02:00
keys-request-key.txt KEYS: Make request_key() and co fundamentally asynchronous 2007-10-17 08:42:57 -07:00
keys.txt KEYS: Make request_key() and co fundamentally asynchronous 2007-10-17 08:42:57 -07:00
kobject.txt kobject: update the kobject/kset documentation 2008-01-24 20:40:41 -08:00
kprobes.txt kprobes: update document about batch registration 2008-04-28 08:58:32 -07:00
kref.txt docs: convert kref semaphore to mutex 2008-02-06 10:41:09 -08:00
ldm.txt LDM: Fix for Windows Vista dynamic disks 2007-05-21 09:58:40 -07:00
leds-class.txt leds: disable triggers on brightness set 2008-04-24 23:34:18 +01:00
local_ops.txt Revert "local_t Documentation update" 2008-01-17 15:38:59 -08:00
lockdep-design.txt [PATCH] fix lockdep-design.txt 2006-10-11 11:14:24 -07:00
lockstat.txt lockstat: documentation 2007-10-07 16:28:43 -07:00
logo.gif
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logo.txt
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magic-number.txt [SPARC]: Remove SunOS and Solaris binary support. 2008-04-21 15:10:15 -07:00
markers.txt Linux Kernel Markers: document format string 2007-11-14 18:45:40 -08:00
mca.txt The ps2esdi driver was marked as BROKEN more than two years ago due to being 2008-03-17 09:03:05 +01:00
md.txt md: introduce get_priority_stripe() to improve raid456 write performance 2008-04-28 08:58:42 -07:00
memory-barriers.txt PCI: doc/pci: create Documentation/PCI/ and move files into it 2008-04-20 21:46:51 -07:00
memory-hotplug.txt memory hotplug: document the memory hotplug notifier 2007-10-22 08:13:17 -07:00
memory.txt
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mono.txt Fix "can not" in Documentation and Kconfig 2006-10-03 22:53:09 +02:00
moxa-smartio
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mtrr.txt
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mutex-design.txt Documentation: Add nested versions of mutex locks to docs 2007-10-20 00:15:26 +02:00
nbd.txt
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nmi_watchdog.txt x86, documentation: nmi_watchdog=2 works on x86_64 2008-03-27 16:08:45 +01:00
nommu-mmap.txt [PATCH] NOMMU: Make futexes work under NOMMU conditions 2006-09-27 08:26:15 -07:00
numastat.txt
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oops-tracing.txt Taint kernel after WARN_ON(condition) 2008-04-29 08:05:59 -07:00
paride.txt
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parport-lowlevel.txt plip: fix parport_register_device name parameter 2007-11-26 19:39:01 -08:00
parport.txt
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pi-futex.txt fix a typo in Documentation/pi-futex.txt 2006-10-03 23:39:02 +02:00
pnp.txt Documentation: Replace obsolete "driverfs" with "sysfs". 2008-01-24 20:40:04 -08:00
preempt-locking.txt
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prio_tree.txt Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
ramdisk.txt Remove final traces of long-deprecated "ramdisk" kernel parm 2007-10-17 08:42:56 -07:00
rbtree.txt [PATCH] Documentation/rbtree.txt 2007-02-11 10:51:35 -08:00
rfkill.txt [RFKILL]: Add rfkill documentation 2007-10-10 16:49:24 -07:00
riscom8.txt
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robust-futex-ABI.txt Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
robust-futexes.txt Fix typos in /Documentation : Misc 2006-11-30 05:21:10 +01:00
rocket.txt Fix typos in Documentation/: 'S' 2006-10-03 22:55:17 +02:00
rt-mutex-design.txt [PATCH] typo fixes for rt-mutex-design.txt 2006-10-01 00:39:24 -07:00
rt-mutex.txt
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rtc.txt rtc: cleanup example code 2008-02-06 10:41:14 -08:00
serial-console.txt
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sgi-ioc4.txt
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sgi-visws.txt
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sparse.txt [PATCH] update 'getting sparse' info. 2007-03-08 16:47:58 -08:00
specialix.txt
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spinlocks.txt Add additional examples in Documentation/spinlocks.txt 2008-04-11 13:21:14 -06:00
stable_api_nonsense.txt stable_api_nonsense.txt: Disambiguate the use of "this" by using "that" to refer to the syscall interface 2007-07-30 14:25:12 -07:00
stable_kernel_rules.txt stable_kernel_rules: fix must already be in mainline 2008-02-21 15:27:07 -08:00
stallion.txt
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svga.txt
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sx.txt
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sysfs-rules.txt Fix Doc/sysfs-rules typos 2007-07-30 14:25:12 -07:00
sysrq.txt sysrq: add show-backtrace-on-all-cpus function 2008-04-29 08:06:03 -07:00
tty.txt termios: document callback more clearly 2007-11-29 09:24:52 -08:00
unaligned-memory-access.txt Fix typos in Documentation/unaligned-memory-access.txt 2008-04-02 15:28:19 -07:00
unicode.txt
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unshare.txt Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
video-output.txt output: Add output class document 2006-12-20 01:46:58 -05:00
volatile-considered-harmful.txt "volatile considered harmful" 2007-06-24 08:59:11 -07:00
voyager.txt
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zorro.txt
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README.cycladesZ 

The Cyclades-Z must have firmware loaded onto the card before it will
operate.  This operation should be performed during system startup,

The firmware, loader program and the latest device driver code are
available from Cyclades at
    ftp://ftp.cyclades.com/pub/cyclades/cyclades-z/linux/