Re: [PATCH] doc: Clarify that nmi_watchdog param is for hardlockups

[Jonathan Corbet]

On Sat, 10 Oct 2015 15:40:42 -0400
Pranith Kumar  wrote:

> The kernel NMI watchdog acts as both a hardlockup and softlockup detector.
> However, the kernel parameter nmi_watchdog can only enable or disable the
> hardlockup detector. Clarify that in the documentation.

Applied to the docs tree, thanks.

jon
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Re: [PATCH] doc: Clarify that nmi_watchdog param is for hardlockups

[Jonathan Corbet]

On Sat, 10 Oct 2015 15:40:42 -0400
Pranith Kumar  wrote:

> The kernel NMI watchdog acts as both a hardlockup and softlockup detector.
> However, the kernel parameter nmi_watchdog can only enable or disable the
> hardlockup detector. Clarify that in the documentation.

Applied to the docs tree, thanks.

jon
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[PATCH] doc: Clarify that nmi_watchdog param is for hardlockups

[Pranith Kumar]

The kernel NMI watchdog acts as both a hardlockup and softlockup detector.
However, the kernel parameter nmi_watchdog can only enable or disable the
hardlockup detector. Clarify that in the documentation.

Signed-off-by: Pranith Kumar 
---
 Documentation/kernel-parameters.txt | 7 ---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Documentation/kernel-parameters.txt 
b/Documentation/kernel-parameters.txt
index 6fecc72..5b83279 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2329,11 +2329,12 @@ bytes respectively. Such letter suffixes can also be 
entirely omitted.
nmi_watchdog=   [KNL,BUGS=X86] Debugging features for SMP kernels
Format: [panic,][nopanic,][num]
Valid num: 0 or 1
-   0 - turn nmi_watchdog off
-   1 - turn nmi_watchdog on
+   0 - turn hardlockup detector in nmi_watchdog off
+   1 - turn hardlockup detector in nmi_watchdog on
When panic is specified, panic when an NMI watchdog
timeout occurs (or 'nopanic' to override the opposite
-   default).
+   default). To disable both hard and soft lockup 
detectors,
+   please see 'nowatchdog'.
This is useful when you use a panic=... timeout and
need the box quickly up again.
 
-- 
2.6.0

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[PATCH] doc: Clarify that nmi_watchdog param is for hardlockups

[Pranith Kumar]

The kernel NMI watchdog acts as both a hardlockup and softlockup detector.
However, the kernel parameter nmi_watchdog can only enable or disable the
hardlockup detector. Clarify that in the documentation.

Signed-off-by: Pranith Kumar 
---
 Documentation/kernel-parameters.txt | 7 ---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Documentation/kernel-parameters.txt 
b/Documentation/kernel-parameters.txt
index 6fecc72..5b83279 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2329,11 +2329,12 @@ bytes respectively. Such letter suffixes can also be 
entirely omitted.
nmi_watchdog=   [KNL,BUGS=X86] Debugging features for SMP kernels
Format: [panic,][nopanic,][num]
Valid num: 0 or 1
-   0 - turn nmi_watchdog off
-   1 - turn nmi_watchdog on
+   0 - turn hardlockup detector in nmi_watchdog off
+   1 - turn hardlockup detector in nmi_watchdog on
When panic is specified, panic when an NMI watchdog
timeout occurs (or 'nopanic' to override the opposite
-   default).
+   default). To disable both hard and soft lockup 
detectors,
+   please see 'nowatchdog'.
This is useful when you use a panic=... timeout and
need the box quickly up again.
 
-- 
2.6.0

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