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 gets a pre-action. During a panic or a reboot, the watchdog will start a 120 timer if it is running to make sure the reboot occurs. -Note that if you use the NMI preaction for the watchdog, you MUST -NOT use nmi watchdog mode 1. If you use the NMI watchdog, you -must use mode 2. +Note that if you use the NMI preaction for the watchdog, you MUST NOT +use the nmi watchdog. There is no reasonable way to tell if an NMI +comes from the IPMI controller, so it must assume that if it gets an +otherwise unhandled NMI, it must be from IPMI and it will panic +immediately. Once you open the watchdog timer, you must write a 'V' character to the device to close it, or the timer will not stop. This is a new semantic |