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linux/drivers/watchdog
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Anithra P Janakiraman 7fff4beb31 watchdog: softdog.c: enhancement to optionally invoke panic instead of reboot on timer expiry 
This is needed for determining the reason for failure when a softdog
timeout occurs.

We use softdog to watch for critical application failures and at the
minimum a snapshot of the system would help to determine the cause.  In
such a scenario the application could fail but there isn't a softlockup as
such, hence the detect softlockup feature does not help.

The patch adds a module parameter soft_panic which when set to 1 causes
softdog to invoke panic instead of reboot when the softdog timer expires. 
By invoking panic we execute kdump if it is configured and the vmcore
generated by kdump should provide atleast a minimal idea of the reason for
failure.

Based on an original patch by Ken Sugawara <sugaken.r3@gmail.com>
Signed-off-by: Anithra P J <anithra@linux.vnet.ibm.com>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2011-03-29 11:56:22 +00:00
..
acquirewdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
advantechwdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
adx_wdt.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
alim1535_wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
alim7101_wdt.c
watchdog: convert to DEFINE_PCI_DEVICE_TABLE
2011-03-15 16:02:22 +00:00
ar7_wdt.c
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
at32ap700x_wdt.c
watchdog: at32ap700x_wdt: register misc device last in probe() function
2010-06-17 09:56:57 +00:00
at91rm9200_wdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
at91sam9_wdt.c
[WATCHDOG] Correct WDIOF_MAGICCLOSE flag
2009-06-18 07:30:57 +00:00
ath79_wdt.c
watchdog: add driver for the Atheros AR71XX/AR724X/AR913X SoCs
2011-01-12 13:51:29 +00:00
bcm47xx_wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
bcm63xx_wdt.c
watchdog: bcm63xx_wdt: improve platform part.
2010-12-02 14:10:16 +00:00
bfin_wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
booke_wdt.c
watchdog: booke_wdt: clean up status messages
2011-03-15 16:02:39 +00:00
coh901327_wdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
cpu5wdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
cpwd.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
2011-03-17 17:09:29 -07:00
davinci_wdt.c
watchdog: Convert release_resource to release_region/release_mem_region
2011-03-29 11:05:48 +00:00
ep93xx_wdt.c
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
eurotechwdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
f71808e_wdt.c
watchdog: f71808e_wdt: Add Fintek F71869 watchdog
2011-01-12 10:23:04 +00:00
gef_wdt.c
dt: Eliminate of_platform_{,un}register_driver
2011-02-28 13:22:46 -07:00
geodewdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
hpwdt.c
watchdog: convert to DEFINE_PCI_DEVICE_TABLE
2011-03-15 16:02:22 +00:00
i6300esb.c
watchdog: convert to DEFINE_PCI_DEVICE_TABLE
2011-03-15 16:02:22 +00:00
ib700wdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
ibmasr.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
imx2_wdt.c
watchdog: imx: use clk_get to acquire the watchdog clock
2010-12-14 09:54:19 +01:00
indydog.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
intel_scu_watchdog.c
watchdog: Intel SCU Watchdog Timer Driver for Moorestown and Medfield platforms.
2011-03-15 16:02:06 +00:00
intel_scu_watchdog.h
watchdog: Intel SCU Watchdog Timer Driver for Moorestown and Medfield platforms.
2011-03-15 16:02:06 +00:00
iop_wdt.c
[WATCHDOG] sizeof cleanup
2009-09-18 08:39:37 +00:00
it87_wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
it8712f_wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
iTCO_vendor_support.c
iTCO_wdt: fix TCO V1 timeout values and limits
2010-05-25 09:05:56 +00:00
iTCO_vendor.h
[WATCHDOG 18/57] iTCO: unlocked_ioctl, coding style and cleanup
2008-05-28 11:51:32 +00:00
iTCO_wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
ixp4xx_wdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
ixp2000_wdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
jz4740_wdt.c
watchdog: jz4740_wdt - fix magic character checking
2011-03-15 16:01:57 +00:00
Kconfig
Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
2011-03-17 17:09:29 -07:00
ks8695_wdt.c
watchdog: ks8695_wdt: include mach/hardware.h instead of mach/timex.h.
2011-01-12 10:24:52 +00:00
m54xx_wdt.c
m68knommu: Rename m548x_wdt.c to m54xx_wdt.c
2011-02-08 15:07:45 +10:00
machzwd.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
Makefile
watchdog: Xen watchdog driver
2011-03-15 16:02:18 +00:00
max63xx_wdt.c
watchdog: Convert release_resource to release_region/release_mem_region
2011-03-29 11:05:48 +00:00
mixcomwd.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
mpc8xxx_wdt.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
2011-03-17 17:09:29 -07:00
mpcore_wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
mtx-1_wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
mv64x60_wdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
nuc900_wdt.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
nv_tco.c
watchdog: fix nv_tco section mismatch
2011-03-29 11:06:04 +00:00
nv_tco.h
watchdog: Add TCO support for nVidia chipsets
2011-01-12 13:51:23 +00:00
octeon-wdt-main.c
WATCHDOG: octeon-wdt: Use I/O clock rate for timing calculations.
2010-10-29 19:08:42 +01:00
octeon-wdt-nmi.S
WATCHDOG: Add watchdog driver for OCTEON SOCs
2010-08-05 13:26:22 +01:00
omap_wdt.c
Watchdog: omap_wdt: add fine grain runtime-pm
2011-03-10 22:40:05 -07:00
omap_wdt.h
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
orion_wdt.c
[ARM] Orion/Kirkwood: rename orion5x_wdt to orion_wdt
2009-06-08 13:05:00 -04:00
pc87413_wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
pcwd_pci.c
watchdog: convert to DEFINE_PCI_DEVICE_TABLE
2011-03-15 16:02:22 +00:00
pcwd_usb.c
USB: rename usb_buffer_alloc() and usb_buffer_free() users
2010-05-20 13:21:38 -07:00
pcwd.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
pika_wdt.c
[WATCHDOG] powerpc: pika_wdt ident cannot be const
2010-04-03 22:22:20 +00:00
pnx833x_wdt.c
watchdog: fix several MODULE_PARM_DESC strings
2010-05-25 09:03:52 +00:00
pnx4008_wdt.c
watchdog: Convert release_resource to release_region/release_mem_region
2011-03-29 11:05:48 +00:00
rc32434_wdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
rdc321x_wdt.c
rdc321x-southbridge: Use mfd_data instead of driver_data
2011-03-23 10:41:57 +01:00
riowd.c
dt: Eliminate of_platform_{,un}register_driver
2011-02-28 13:22:46 -07:00
s3c2410_wdt.c
watchdog: s3c2410_wdt.c: Convert release_resource to release_region/release_mem_region
2011-03-29 11:05:28 +00:00
sa1100_wdt.c
[WATCHDOG] SA1100 watchdog maximum timeout
2009-07-09 18:29:38 +00:00
sb_wdog.c
watchdog: sb_wdog: release irq and reboot notifier in error path and module_exit()
2010-09-15 18:43:47 +00:00
sbc60xxwdt.c
[WATCHDOG] Some more general cleanup
2009-06-18 07:30:30 +00:00
sbc7240_wdt.c
[WATCHDOG] Coding style - Indentation - part 2
2008-08-06 13:21:09 +00:00
sbc8360.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
sbc_epx_c3.c
Remove one to many n's in a word
2011-03-01 15:47:58 +01:00
sbc_fitpc2_wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
sc520_wdt.c
[WATCHDOG] More coding-style and trivial clean-up
2009-03-25 09:07:04 +00:00
sc1200wdt.c
[WATCHDOG] sizeof cleanup
2009-09-18 08:39:37 +00:00
sch311x_wdt.c
watchdog: sch311x_wdt: fix printk condition
2011-03-14 10:40:21 +00:00
scx200_wdt.c
[WATCHDOG] Correct WDIOF_MAGICCLOSE flag
2009-06-18 07:30:57 +00:00
shwdt.c
Merge branches 'sh/wdt', 'sh/pci-express-async' and 'common/serial-rework' into sh-latest
2011-01-26 18:24:18 +09:00
smsc37b787_wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
softdog.c
watchdog: softdog.c: enhancement to optionally invoke panic instead of reboot on timer expiry
2011-03-29 11:56:22 +00:00
sp805_wdt.c
ARM: amba: make probe() functions take const id tables
2011-02-23 16:24:14 +00:00
sp5100_tco.c
watchdog: sp5100_tco.c: Check if firmware has set correct value in tcobase.
2011-03-29 11:05:57 +00:00
sp5100_tco.h
watchdog: Add support for sp5100 chipset TCO
2011-01-12 13:51:16 +00:00
stmp3xxx_wdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
ts72xx_wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
twl4030_wdt.c
watchdog: twl4030_wdt: Disable watchdog during probing
2010-05-25 09:05:46 +00:00
txx9wdt.c
[WATCHDOG] change reboot_notifier to platform-shutdown method.
2010-03-07 10:30:59 +00:00
w83627hf_wdt.c
watchdog: Fix reboot on W83627ehf chipset.
2011-01-12 10:23:52 +00:00
w83697hf_wdt.c
[WATCHDOG] Some more general cleanup
2009-06-18 07:30:30 +00:00
w83697ug_wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
w83877f_wdt.c
[WATCHDOG] Coding style - Indentation - part 2
2008-08-06 13:21:09 +00:00
w83977f_wdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
wafer5823wdt.c
[PATCH] Switch all my contributions stuff to a single common address
2008-10-28 19:16:11 +00:00
wd501p.h
[WATCHDOG] More coding-style and trivial clean-up
2009-03-25 09:07:04 +00:00
wdrtas.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
wdt285.c
[PATCH] Switch all my contributions stuff to a single common address
2008-10-28 19:16:11 +00:00
wdt977.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
wdt_pci.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
wdt.c
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
wm831x_wdt.c
[WATCHDOG] watchdog_info constify
2010-03-07 10:30:57 +00:00
wm8350_wdt.c
[PATCH 2/11] drivers/watchdog: Eliminate a NULL pointer dereference
2010-06-07 15:55:03 +00:00
xen_wdt.c
watchdog: Xen watchdog driver
2011-03-15 16:02:18 +00:00