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Elektronik Bilgi Kütüphanesi



229
Kernel threads share resources. If a kernel thread monopolizes the CPU, other threads cannot run,
resulting in a deadloop.
This feature enables the device to detect deadloops. If a thread occupies the CPU for a specific interval,
the device considers that a deadloop has occurred. It generates a deadloop message and reboots to
remove the deadloop.
To configure kernel thread deadloop detection (MSR 2600/MSR 3600):
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enable kernel thread
deadloop detection.
monitor kernel deadloop enable
By default, the function is
enabled.
3. (Optional.) Set the interval
for identifying a kernel
thread deadloop.
monitor kernel deadloop time interval The default is 8 seconds.
4. (Optional.) Disable kernel
thread deadloop detection
for a kernel thread.
monitor kernel deadloop exclude-thread
tid
After enabled, kernel thread
deadloop detection monitors
all kernel threads by default.
To configure kernel thread deadloop detection (MSR 5600):
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enable kernel thread
deadloop detection.
monitor kernel deadloop enable [ slot
slot-number ]
By default, the function is
enabled.
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 confi
g
uration 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 (MSR 2600/MSR 3600):