1 ==========================
2 WatchDog Module Parameters
3 ==========================
5 This file provides information on the module parameters of many of
6 the Linux watchdog drivers. Watchdog driver parameter specs should
7 be listed here unless the driver has its own driver-specific information
10 See Documentation/admin-guide/kernel-parameters.rst for information on
11 providing kernel parameters for builtin drivers versus loadable
14 -------------------------------------------------
18 Acquire WDT 'stop' io port (default 0x43)
20 Acquire WDT 'start' io port (default 0x443)
22 Watchdog cannot be stopped once started
23 (default=kernel config parameter)
25 -------------------------------------------------
29 Advantech WDT 'stop' io port (default 0x443)
31 Advantech WDT 'start' io port (default 0x443)
33 Watchdog timeout in seconds. 1<= timeout <=63, default=60.
35 Watchdog cannot be stopped once started
36 (default=kernel config parameter)
38 -------------------------------------------------
42 Watchdog timeout in seconds. (0 < timeout < 18000, default=60
44 Watchdog cannot be stopped once started
45 (default=kernel config parameter)
47 -------------------------------------------------
51 Watchdog timeout in seconds. (1<=timeout<=3600, default=30
53 Use the gpio watchdog (required by old cobalt boards).
56 Watchdog cannot be stopped once started
57 (default=kernel config parameter)
59 -------------------------------------------------
63 Watchdog margin in seconds (default=60)
65 Disable watchdog shutdown on close
66 (default=kernel config parameter)
68 -------------------------------------------------
72 Watchdog timeout in seconds. (default=120)
74 Disable watchdog shutdown on close
75 (default=kernel config parameter)
77 -------------------------------------------------
81 Watchdog time in seconds. (default=5)
83 Watchdog cannot be stopped once started
84 (default=kernel config parameter)
86 -------------------------------------------------
90 Watchdog heartbeats in seconds. (default = 15)
92 Watchdog cannot be stopped once started
93 (default=kernel config parameter)
95 -------------------------------------------------
99 Watchdog time in seconds. (default=30)
101 Watchdog cannot be stopped once started
102 (default=kernel config parameter)
104 -------------------------------------------------
108 Watchdog margin in seconds (default 60s)
110 -------------------------------------------------
114 base address of watchdog card, default is 0x91
116 be verbose, default is 0 (no)
118 count down ticks, default is 10000
120 -------------------------------------------------
124 Default watchdog0 timeout in 1/10secs
126 Default watchdog1 timeout in 1/10secs
128 Default watchdog2 timeout in 1/10secs
130 -------------------------------------------------
134 Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
136 Watchdog cannot be stopped once started
137 (default=kernel config parameter)
139 -------------------------------------------------
143 Watchdog heartbeat period in seconds from 1 to 600, default 60
145 -------------------------------------------------
149 Watchdog timeout in seconds. (1<=timeout<=15300, default=60)
151 Watchdog cannot be stopped once started
153 -------------------------------------------------
157 Watchdog cannot be stopped once started
159 Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
161 -------------------------------------------------
165 Watchdog cannot be stopped once started
166 (default=kernel config parameter)
168 Eurotech WDT io port (default=0x3f0)
170 Eurotech WDT irq (default=10)
172 Eurotech WDT event type (default is `int`)
174 -------------------------------------------------
178 Watchdog cannot be stopped once started
179 (default=kernel config parameter)
181 -------------------------------------------------
185 Watchdog timeout in seconds. 1<= timeout <=131, default=60.
187 Watchdog cannot be stopped once started
188 (default=kernel config parameter)
190 -------------------------------------------------
194 Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
196 Watchdog cannot be stopped once started
197 (default=kernel config parameter)
199 -------------------------------------------------
203 Watchdog heartbeat in seconds.
204 (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
206 Watchdog cannot be stopped once started
207 (default=kernel config parameter)
209 -------------------------------------------------
213 iTCO vendor specific support mode, default=0 (none),
214 1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
216 -------------------------------------------------
220 Watchdog timeout in seconds. 0<= timeout <=30, default=30.
222 Watchdog cannot be stopped once started
223 (default=kernel config parameter)
225 -------------------------------------------------
229 Watchdog cannot be stopped once started
230 (default=kernel config parameter)
232 -------------------------------------------------
236 Watchdog timeout in seconds (default 60 s)
238 Watchdog cannot be stopped once started
239 (default=kernel config parameter)
241 -------------------------------------------------
245 Watchdog cannot be stopped once started
246 (default=kernel config parameter)
248 -------------------------------------------------
252 Watchdog cannot be stopped once started
253 (default=kernel config parameter)
255 -------------------------------------------------
259 Watchdog margin in seconds (default 60)
261 Disable watchdog shutdown on close
262 (default=kernel config parameter)
264 -------------------------------------------------
268 Forbid the activation of game port, default=0
270 Forbid the use of CIR (workaround for some buggy setups); set to 1 if
271 system resets despite watchdog daemon running, default=0
273 Watchdog exclusive device open, default=1
275 Watchdog timeout in seconds, default=60
277 Watchdog test mode (1 = no reboot), default=0
279 Watchdog cannot be stopped once started
280 (default=kernel config parameter)
282 -------------------------------------------------
286 Watchdog heartbeat in seconds (default 60s)
288 Watchdog cannot be stopped once started
289 (default=kernel config parameter)
291 -------------------------------------------------
295 Watchdog time in seconds. (default=5)
297 Watchdog cannot be stopped once started
298 (default=kernel config parameter)
300 -------------------------------------------------
304 Watchdog cannot be stopped once started
305 (default=kernel config parameter)
307 after watchdog resets, generate:
308 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI
310 -------------------------------------------------
314 Watchdog heartbeat period in seconds from 1 to 60, default 60
316 Watchdog cannot be stopped once started
317 (default=kernel config parameter)
319 Force selection of a timeout setting without initial delay
320 (max6373/74 only, default=0)
322 -------------------------------------------------
326 Watchdog cannot be stopped once started
327 (default=kernel config parameter)
329 -------------------------------------------------
333 Watchdog timeout in ticks. (0<timeout<65536, default=65535)
335 Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
337 Watchdog cannot be stopped once started
338 (default=kernel config parameter)
340 -------------------------------------------------
344 Watchdog cannot be stopped once started
345 (default=kernel config parameter)
347 -------------------------------------------------
351 Initial watchdog timeout in seconds (0<timeout<516, default=60)
353 Watchdog cannot be stopped once started
354 (default=kernel config parameter)
356 -------------------------------------------------
360 Initial watchdog timeout in seconds (0<timeout<464, default=80)
362 Watchdog cannot be stopped once started
363 (default=kernel config parameter)
365 -------------------------------------------------
369 Watchdog heartbeats in seconds.
372 Watchdog cannot be stopped once started
373 (default=kernel config parameter)
375 -------------------------------------------------
379 initial watchdog timeout (in seconds)
381 Watchdog is started on module insertion (default=0
383 Watchdog cannot be stopped once started
384 (default=kernel config parameter)
386 -------------------------------------------------
390 Initial watchdog heartbeat in seconds
392 Watchdog cannot be stopped once started
393 (default=kernel config parameter)
395 -------------------------------------------------
399 pc87413 WDT I/O port (default: io).
401 Watchdog timeout in minutes (default=timeout).
403 Watchdog cannot be stopped once started
404 (default=kernel config parameter)
406 -------------------------------------------------
410 Watchdog heartbeats in seconds. (default = 15)
412 Watchdog cannot be stopped once started
413 (default=kernel config parameter)
415 -------------------------------------------------
419 Watchdog heartbeat period in seconds from 1 to 60, default 19
421 Set to 1 to keep watchdog running after device release
423 -------------------------------------------------
427 Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
429 Watchdog cannot be stopped once started
430 (default=kernel config parameter)
432 Watchdog is started on module insertion (default=1)
434 -------------------------------------------------
438 Watchdog timeout value, in seconds (default=20)
440 Watchdog cannot be stopped once started
441 (default=kernel config parameter)
443 -------------------------------------------------
447 Watchdog timeout in minutes (default=1)
449 -------------------------------------------------
453 Watchdog tmr_margin in seconds. (default=15)
455 Watchdog is started at boot time if set to 1, default=0
457 Watchdog cannot be stopped once started
458 (default=kernel config parameter)
460 Watchdog action, set to 1 to ignore reboots, 0 to reboot
462 Watchdog debug, set to >1 for debug, (default 0)
464 -------------------------------------------------
468 Watchdog margin in seconds (default 60s)
470 -------------------------------------------------
474 Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
476 -------------------------------------------------
480 SBC60xx WDT 'stop' io port (default 0x45)
482 SBC60xx WDT 'start' io port (default 0x443)
484 Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
486 Watchdog cannot be stopped once started
487 (default=kernel config parameter)
489 -------------------------------------------------
493 Watchdog timeout in seconds. (1<=timeout<=255, default=30)
495 Disable watchdog when closing device file
497 -------------------------------------------------
501 Index into timeout table (0-63) (default=27 (60s))
503 Watchdog cannot be stopped once started
504 (default=kernel config parameter)
506 -------------------------------------------------
510 Watchdog cannot be stopped once started
511 (default=kernel config parameter)
513 -------------------------------------------------
517 Watchdog margin in seconds (default 60s)
519 Watchdog cannot be stopped once started
521 -------------------------------------------------
525 Watchdog timeout in seconds. (default 10s)
527 Watchdog action at the first stage timeout,
528 set to 0 to ignore, 1 to panic. (default=0)
530 Watchdog cannot be stopped once started
531 (default=kernel config parameter)
533 -------------------------------------------------
537 When set to 0 driver ISA PnP support will be disabled (default=1)
541 range is 0-255 minutes, default is 1
543 Watchdog cannot be stopped once started
544 (default=kernel config parameter)
546 -------------------------------------------------
550 Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
552 Watchdog cannot be stopped once started
553 (default=kernel config parameter)
555 -------------------------------------------------
559 Override the detected device ID
561 Should a ThermTrip trigger the reset generator
563 Watchdog timeout in seconds. 1<= timeout <=15300, default=60
565 Watchdog cannot be stopped once started
566 (default=kernel config parameter)
568 -------------------------------------------------
572 Watchdog margin in seconds
574 Disable watchdog shutdown on close
576 -------------------------------------------------
579 clock_division_ratio:
580 Clock division ratio. Valid ranges are from 0x5 (1.31ms)
581 to 0x7 (5.25ms). (default=7)
583 Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
585 Watchdog cannot be stopped once started
586 (default=kernel config parameter)
588 -------------------------------------------------
592 range is 1-255 units, default is 60
594 Watchdog cannot be stopped once started
595 (default=kernel config parameter)
597 -------------------------------------------------
601 Watchdog soft_margin in seconds.
602 (0 < soft_margin < 65536, default=60)
604 Watchdog cannot be stopped once started
605 (default=kernel config parameter)
607 Softdog action, set to 1 to ignore reboots, 0 to reboot
610 -------------------------------------------------
614 Watchdog heartbeat period in seconds from 1 to 4194304, default 19
616 -------------------------------------------------
620 Watchdog heartbeats in seconds. (default = 120)
622 Watchdog cannot be stopped once started
623 (default=kernel config parameter)
625 -------------------------------------------------
629 Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
631 Disable watchdog shutdown on close
633 -------------------------------------------------
637 Watchdog cannot be stopped once started
638 (default=kernel config parameter)
640 -------------------------------------------------
644 Watchdog timeout in seconds. (0<timeout<N, default=60)
646 Watchdog cannot be stopped once started
647 (default=kernel config parameter)
649 -------------------------------------------------
653 Watchdog timeout in power of two seconds.
654 (1 <= timeout <= 128, default=64)
656 Watchdog cannot be stopped once started
657 (default=kernel config parameter)
659 -------------------------------------------------
663 w83627hf/thf WDT io port (default 0x2E)
665 Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
667 Watchdog cannot be stopped once started
668 (default=kernel config parameter)
670 -------------------------------------------------
674 Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
676 Watchdog cannot be stopped once started
677 (default=kernel config parameter)
679 -------------------------------------------------
683 Watchdog timeout in seconds (15..7635), default=45)
685 Watchdog testmode (1 = no reboot), default=0
687 Watchdog cannot be stopped once started
688 (default=kernel config parameter)
690 -------------------------------------------------
694 Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
696 Watchdog cannot be stopped once started
697 (default=kernel config parameter)
699 -------------------------------------------------
703 Watchdog timeout in seconds (default=60)
705 -------------------------------------------------
709 Watchdog timeout in seconds (60..15300, default=60)
711 Watchdog testmode (1 = no reboot), default=0
713 Watchdog cannot be stopped once started
714 (default=kernel config parameter)
716 -------------------------------------------------
720 Watchdog cannot be stopped once started
721 (default=kernel config parameter)
723 -------------------------------------------------
727 Watchdog cannot be stopped once started
728 (default=kernel config parameter)
730 -------------------------------------------------
734 Watchdog timeout in milliseconds 1..180000, default=60000)
736 Watchdog cannot be stopped once started