tree 97309901620848a9bc045dd88df6cc7eb2582ab0
parent 75b0768a396f2a25901b7b1edc87b95cdb3af4ef
author Corey Minyard <[EMAIL PROTECTED]> Wed, 07 Sep 2005 05:18:39 -0700
committer Linus Torvalds <[EMAIL PROTECTED]> Thu, 08 Sep 2005 06:57:48 -0700
[PATCH] ipmi: watchdog/NMI interaction fixes
There are some interactions between IPMI NMI timeouts and the other operations
of the IPMI driver. This make sure those interactions are handled properly.
Signed-off-by: Corey Minyard <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
drivers/char/ipmi/ipmi_watchdog.c | 18 +++++++++++-------
1 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/drivers/char/ipmi/ipmi_watchdog.c
b/drivers/char/ipmi/ipmi_watchdog.c
--- a/drivers/char/ipmi/ipmi_watchdog.c
+++ b/drivers/char/ipmi/ipmi_watchdog.c
@@ -259,7 +259,7 @@ static int i_ipmi_set_timeout(struct ipm
data[1] = 0;
WDOG_SET_TIMEOUT_ACT(data[1], ipmi_watchdog_state);
- if (pretimeout > 0) {
+ if ((pretimeout > 0) && (ipmi_watchdog_state != WDOG_TIMEOUT_NONE)) {
WDOG_SET_PRETIMEOUT_ACT(data[1], preaction_val);
data[2] = pretimeout;
} else {
@@ -817,15 +817,19 @@ static void ipmi_register_watchdog(int i
static int
ipmi_nmi(void *dev_id, struct pt_regs *regs, int cpu, int handled)
{
+ /* If we are not expecting a timeout, ignore it. */
+ if (ipmi_watchdog_state == WDOG_TIMEOUT_NONE)
+ return NOTIFY_DONE;
+
/* If no one else handled the NMI, we assume it was the IPMI
watchdog. */
- if ((!handled) && (preop_val == WDOG_PREOP_PANIC))
+ if ((!handled) && (preop_val == WDOG_PREOP_PANIC)) {
+ /* On some machines, the heartbeat will give
+ an error and not work unless we re-enable
+ the timer. So do so. */
+ pretimeout_since_last_heartbeat = 1;
panic(PFX "pre-timeout");
-
- /* On some machines, the heartbeat will give
- an error and not work unless we re-enable
- the timer. So do so. */
- pretimeout_since_last_heartbeat = 1;
+ }
return NOTIFY_DONE;
}
-
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