diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/IPMI.txt | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/IPMI.txt b/Documentation/IPMI.txt index 83b05459eb5c..bc38283379f0 100644 --- a/Documentation/IPMI.txt +++ b/Documentation/IPMI.txt | |||
| @@ -584,9 +584,11 @@ The watchdog will panic and start a 120 second reset timeout if it | |||
| 584 | gets a pre-action. During a panic or a reboot, the watchdog will | 584 | gets a pre-action. During a panic or a reboot, the watchdog will |
| 585 | start a 120 timer if it is running to make sure the reboot occurs. | 585 | start a 120 timer if it is running to make sure the reboot occurs. |
| 586 | 586 | ||
| 587 | Note that if you use the NMI preaction for the watchdog, you MUST | 587 | Note that if you use the NMI preaction for the watchdog, you MUST NOT |
| 588 | NOT use nmi watchdog mode 1. If you use the NMI watchdog, you | 588 | use the nmi watchdog. There is no reasonable way to tell if an NMI |
| 589 | must use mode 2. | 589 | comes from the IPMI controller, so it must assume that if it gets an |
| 590 | otherwise unhandled NMI, it must be from IPMI and it will panic | ||
| 591 | immediately. | ||
| 590 | 592 | ||
| 591 | Once you open the watchdog timer, you must write a 'V' character to the | 593 | Once you open the watchdog timer, you must write a 'V' character to the |
| 592 | device to close it, or the timer will not stop. This is a new semantic | 594 | device to close it, or the timer will not stop. This is a new semantic |