H3C Technologies H3C S6300 Series Switches - Manual (Page 205)

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Step Command Remarks
3. (Optional.) Set the interval
for identifying a kernel
thread deadloop.
monitor kernel deadloop time interval [ slot
slot-number ]
The default is 8 seconds.
4. (Optional.) Disable kernel
thread deadloop detection
for a kernel thread.
monitor kernel deadloop exclude-thread
tid [ slot slot-number ]
After enabled, kernel thread
deadloop detection monitors
all kernel threads by default.
Configuring kernel thread starvation detection
CAUTION:
Inappropriate configuration of kernel thread starvation detection can cause service problems or system
breakdown. Make sure you understand the impact of this configuration on your network before you do it.
Starvation occurs when a thread is unable to access shared resources.
Kernel thread starvation detection enables the system to detect and report thread starvation. If a thread
is not executed within a specific interval, the system considers that a starvation has occurred, and
generates a starvation message.
Thread starvation does not impact system operation. A starved thread can automatically run when
certain conditions are met.
To configure kernel thread starvation detection:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable kernel thread
starvation detection. monitor kernel starvation enable [ slot
slot-number ] By default, the function is
disabled.
3. (Optional.) Set the interval
for identifying a kernel
thread starvation.
monitor kernel starvation time interval [ slot
slot-number ]
The default is 120 seconds.
4. (Optional.) Disable kernel
thread starvation detection
for a kernel thread.
monitor kernel starvation exclude-thread
tid [ slot slot-number ]
After enabled, kernel thread
starvation detection monitors
all kernel threads by default.
Displaying and maintaining kernel threads
Execute display commands in any view and reset commands in user view.
Task Command
Display kernel thread deadloop information.
display kernel deadloop show-number [ offset ] [ verbose ]
[ slot slot-number ]
Display kernel thread deadloop detection
configuration.
display kernel deadloop configuration [ slot slot-number ]
Display kernel thread exception information.
display kernel exception show-number [ offset ] [ verbose ]
[ slot slot-number ]