| ========================== |
| WatchDog Module Parameters |
| ========================== |
| |
| This file provides information on the module parameters of many of |
| the Linux watchdog drivers. Watchdog driver parameter specs should |
| be listed here unless the driver has its own driver-specific information |
| file. |
| |
| See Documentation/admin-guide/kernel-parameters.rst for information on |
| providing kernel parameters for builtin drivers versus loadable |
| modules. |
| |
| ------------------------------------------------- |
| |
| watchdog core: |
| open_timeout: |
| Maximum time, in seconds, for which the watchdog framework will take |
| care of pinging a running hardware watchdog until userspace opens the |
| corresponding /dev/watchdogN device. A value of 0 means an infinite |
| timeout. Setting this to a non-zero value can be useful to ensure that |
| either userspace comes up properly, or the board gets reset and allows |
| fallback logic in the bootloader to try something else. |
| |
| ------------------------------------------------- |
| |
| acquirewdt: |
| wdt_stop: |
| Acquire WDT 'stop' io port (default 0x43) |
| wdt_start: |
| Acquire WDT 'start' io port (default 0x443) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| advantechwdt: |
| wdt_stop: |
| Advantech WDT 'stop' io port (default 0x443) |
| wdt_start: |
| Advantech WDT 'start' io port (default 0x443) |
| timeout: |
| Watchdog timeout in seconds. 1<= timeout <=63, default=60. |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| alim1535_wdt: |
| timeout: |
| Watchdog timeout in seconds. (0 < timeout < 18000, default=60 |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| alim7101_wdt: |
| timeout: |
| Watchdog timeout in seconds. (1<=timeout<=3600, default=30 |
| use_gpio: |
| Use the gpio watchdog (required by old cobalt boards). |
| default=0/off/no |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| ar7_wdt: |
| margin: |
| Watchdog margin in seconds (default=60) |
| nowayout: |
| Disable watchdog shutdown on close |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| armada_37xx_wdt: |
| timeout: |
| Watchdog timeout in seconds. (default=120) |
| nowayout: |
| Disable watchdog shutdown on close |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| at91rm9200_wdt: |
| wdt_time: |
| Watchdog time in seconds. (default=5) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| at91sam9_wdt: |
| heartbeat: |
| Watchdog heartbeats in seconds. (default = 15) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| bcm47xx_wdt: |
| wdt_time: |
| Watchdog time in seconds. (default=30) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| coh901327_wdt: |
| margin: |
| Watchdog margin in seconds (default 60s) |
| |
| ------------------------------------------------- |
| |
| cpwd: |
| wd0_timeout: |
| Default watchdog0 timeout in 1/10secs |
| wd1_timeout: |
| Default watchdog1 timeout in 1/10secs |
| wd2_timeout: |
| Default watchdog2 timeout in 1/10secs |
| |
| ------------------------------------------------- |
| |
| da9052wdt: |
| timeout: |
| Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| davinci_wdt: |
| heartbeat: |
| Watchdog heartbeat period in seconds from 1 to 600, default 60 |
| |
| ------------------------------------------------- |
| |
| ebc-c384_wdt: |
| timeout: |
| Watchdog timeout in seconds. (1<=timeout<=15300, default=60) |
| nowayout: |
| Watchdog cannot be stopped once started |
| |
| ------------------------------------------------- |
| |
| ep93xx_wdt: |
| nowayout: |
| Watchdog cannot be stopped once started |
| timeout: |
| Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD) |
| |
| ------------------------------------------------- |
| |
| eurotechwdt: |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| io: |
| Eurotech WDT io port (default=0x3f0) |
| irq: |
| Eurotech WDT irq (default=10) |
| ev: |
| Eurotech WDT event type (default is `int`) |
| |
| ------------------------------------------------- |
| |
| gef_wdt: |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| geodewdt: |
| timeout: |
| Watchdog timeout in seconds. 1<= timeout <=131, default=60. |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| i6300esb: |
| heartbeat: |
| Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| iTCO_wdt: |
| heartbeat: |
| Watchdog heartbeat in seconds. |
| (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| iTCO_vendor_support: |
| vendorsupport: |
| iTCO vendor specific support mode, default=0 (none), |
| 1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS |
| |
| ------------------------------------------------- |
| |
| ib700wdt: |
| timeout: |
| Watchdog timeout in seconds. 0<= timeout <=30, default=30. |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| ibmasr: |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| imx2_wdt: |
| timeout: |
| Watchdog timeout in seconds (default 60 s) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| indydog: |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| iop_wdt: |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| it8712f_wdt: |
| margin: |
| Watchdog margin in seconds (default 60) |
| nowayout: |
| Disable watchdog shutdown on close |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| it87_wdt: |
| nogameport: |
| Forbid the activation of game port, default=0 |
| nocir: |
| Forbid the use of CIR (workaround for some buggy setups); set to 1 if |
| system resets despite watchdog daemon running, default=0 |
| exclusive: |
| Watchdog exclusive device open, default=1 |
| timeout: |
| Watchdog timeout in seconds, default=60 |
| testmode: |
| Watchdog test mode (1 = no reboot), default=0 |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| ixp4xx_wdt: |
| heartbeat: |
| Watchdog heartbeat in seconds (default 60s) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| machzwd: |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| action: |
| after watchdog resets, generate: |
| 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI |
| |
| ------------------------------------------------- |
| |
| max63xx_wdt: |
| heartbeat: |
| Watchdog heartbeat period in seconds from 1 to 60, default 60 |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| nodelay: |
| Force selection of a timeout setting without initial delay |
| (max6373/74 only, default=0) |
| |
| ------------------------------------------------- |
| |
| mixcomwd: |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| mpc8xxx_wdt: |
| timeout: |
| Watchdog timeout in ticks. (0<timeout<65536, default=65535) |
| reset: |
| Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| mv64x60_wdt: |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| ni903x_wdt: |
| timeout: |
| Initial watchdog timeout in seconds (0<timeout<516, default=60) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| nic7018_wdt: |
| timeout: |
| Initial watchdog timeout in seconds (0<timeout<464, default=80) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| omap_wdt: |
| timer_margin: |
| initial watchdog timeout (in seconds) |
| early_enable: |
| Watchdog is started on module insertion (default=0 |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| orion_wdt: |
| heartbeat: |
| Initial watchdog heartbeat in seconds |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| pc87413_wdt: |
| io: |
| pc87413 WDT I/O port (default: io). |
| timeout: |
| Watchdog timeout in minutes (default=timeout). |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| pika_wdt: |
| heartbeat: |
| Watchdog heartbeats in seconds. (default = 15) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| pnx4008_wdt: |
| heartbeat: |
| Watchdog heartbeat period in seconds from 1 to 60, default 19 |
| nowayout: |
| Set to 1 to keep watchdog running after device release |
| |
| ------------------------------------------------- |
| |
| pnx833x_wdt: |
| timeout: |
| Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| start_enabled: |
| Watchdog is started on module insertion (default=1) |
| |
| ------------------------------------------------- |
| |
| pseries-wdt: |
| action: |
| Action taken when watchdog expires: 0 (power off), 1 (restart), |
| 2 (dump and restart). (default=1) |
| timeout: |
| Initial watchdog timeout in seconds. (default=60) |
| nowayout: |
| Watchdog cannot be stopped once started. |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| rc32434_wdt: |
| timeout: |
| Watchdog timeout value, in seconds (default=20) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| riowd: |
| riowd_timeout: |
| Watchdog timeout in minutes (default=1) |
| |
| ------------------------------------------------- |
| |
| s3c2410_wdt: |
| tmr_margin: |
| Watchdog tmr_margin in seconds. (default=15) |
| tmr_atboot: |
| Watchdog is started at boot time if set to 1, default=0 |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| soft_noboot: |
| Watchdog action, set to 1 to ignore reboots, 0 to reboot |
| debug: |
| Watchdog debug, set to >1 for debug, (default 0) |
| |
| ------------------------------------------------- |
| |
| sa1100_wdt: |
| margin: |
| Watchdog margin in seconds (default 60s) |
| |
| ------------------------------------------------- |
| |
| sb_wdog: |
| timeout: |
| Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs) |
| |
| ------------------------------------------------- |
| |
| sbc60xxwdt: |
| wdt_stop: |
| SBC60xx WDT 'stop' io port (default 0x45) |
| wdt_start: |
| SBC60xx WDT 'start' io port (default 0x443) |
| timeout: |
| Watchdog timeout in seconds. (1<=timeout<=3600, default=30) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| sbc7240_wdt: |
| timeout: |
| Watchdog timeout in seconds. (1<=timeout<=255, default=30) |
| nowayout: |
| Disable watchdog when closing device file |
| |
| ------------------------------------------------- |
| |
| sbc8360: |
| timeout: |
| Index into timeout table (0-63) (default=27 (60s)) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| sbc_epx_c3: |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| sbc_fitpc2_wdt: |
| margin: |
| Watchdog margin in seconds (default 60s) |
| nowayout: |
| Watchdog cannot be stopped once started |
| |
| ------------------------------------------------- |
| |
| sbsa_gwdt: |
| timeout: |
| Watchdog timeout in seconds. (default 10s) |
| action: |
| Watchdog action at the first stage timeout, |
| set to 0 to ignore, 1 to panic. (default=0) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| sc1200wdt: |
| isapnp: |
| When set to 0 driver ISA PnP support will be disabled (default=1) |
| io: |
| io port |
| timeout: |
| range is 0-255 minutes, default is 1 |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| sc520_wdt: |
| timeout: |
| Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| sch311x_wdt: |
| force_id: |
| Override the detected device ID |
| therm_trip: |
| Should a ThermTrip trigger the reset generator |
| timeout: |
| Watchdog timeout in seconds. 1<= timeout <=15300, default=60 |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| scx200_wdt: |
| margin: |
| Watchdog margin in seconds |
| nowayout: |
| Disable watchdog shutdown on close |
| |
| ------------------------------------------------- |
| |
| shwdt: |
| clock_division_ratio: |
| Clock division ratio. Valid ranges are from 0x5 (1.31ms) |
| to 0x7 (5.25ms). (default=7) |
| heartbeat: |
| Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30 |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| smsc37b787_wdt: |
| timeout: |
| range is 1-255 units, default is 60 |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| softdog: |
| soft_margin: |
| Watchdog soft_margin in seconds. |
| (0 < soft_margin < 65536, default=60) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| soft_noboot: |
| Softdog action, set to 1 to ignore reboots, 0 to reboot |
| (default=0) |
| |
| ------------------------------------------------- |
| |
| stmp3xxx_wdt: |
| heartbeat: |
| Watchdog heartbeat period in seconds from 1 to 4194304, default 19 |
| |
| ------------------------------------------------- |
| |
| tegra_wdt: |
| heartbeat: |
| Watchdog heartbeats in seconds. (default = 120) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| ts72xx_wdt: |
| timeout: |
| Watchdog timeout in seconds. (1 <= timeout <= 8, default=8) |
| nowayout: |
| Disable watchdog shutdown on close |
| |
| ------------------------------------------------- |
| |
| twl4030_wdt: |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| txx9wdt: |
| timeout: |
| Watchdog timeout in seconds. (0<timeout<N, default=60) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| uniphier_wdt: |
| timeout: |
| Watchdog timeout in power of two seconds. |
| (1 <= timeout <= 128, default=64) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| w83627hf_wdt: |
| wdt_io: |
| w83627hf/thf WDT io port (default 0x2E) |
| timeout: |
| Watchdog timeout in seconds. 1 <= timeout <= 255, default=60. |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| w83877f_wdt: |
| timeout: |
| Watchdog timeout in seconds. (1<=timeout<=3600, default=30) |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| w83977f_wdt: |
| timeout: |
| Watchdog timeout in seconds (15..7635), default=45) |
| testmode: |
| Watchdog testmode (1 = no reboot), default=0 |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| wafer5823wdt: |
| timeout: |
| Watchdog timeout in seconds. 1 <= timeout <= 255, default=60. |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| wdt285: |
| soft_margin: |
| Watchdog timeout in seconds (default=60) |
| |
| ------------------------------------------------- |
| |
| wdt977: |
| timeout: |
| Watchdog timeout in seconds (60..15300, default=60) |
| testmode: |
| Watchdog testmode (1 = no reboot), default=0 |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| wm831x_wdt: |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| wm8350_wdt: |
| nowayout: |
| Watchdog cannot be stopped once started |
| (default=kernel config parameter) |
| |
| ------------------------------------------------- |
| |
| sun4v_wdt: |
| timeout_ms: |
| Watchdog timeout in milliseconds 1..180000, default=60000) |
| nowayout: |
| Watchdog cannot be stopped once started |
