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| author | Corey Minyard <minyard@acm.org> | 2005-09-06 15:18:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-07 16:57:48 -0700 |
| commit | 8f05ee9a63b414da4fd036a9dab2d27727301188 (patch) | |
| tree | 97309901620848a9bc045dd88df6cc7eb2582ab0 /drivers | |
| parent | 75b0768a396f2a25901b7b1edc87b95cdb3af4ef (diff) | |
| download | kernel_samsung_aries-8f05ee9a63b414da4fd036a9dab2d27727301188.zip kernel_samsung_aries-8f05ee9a63b414da4fd036a9dab2d27727301188.tar.gz kernel_samsung_aries-8f05ee9a63b414da4fd036a9dab2d27727301188.tar.bz2 | |
[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 <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | 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 index d35a953..82d5643 100644 --- 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 ipmi_smi_msg *smi_msg, 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 ipmi_intf) 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; } |