Kernel kdump support and management#510
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lguohan merged 4 commits intosonic-net:masterfrom Apr 30, 2020
olivier-singla:kdump-doc
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Kernel kdump support and management#510lguohan merged 4 commits intosonic-net:masterfrom olivier-singla:kdump-doc
lguohan merged 4 commits intosonic-net:masterfrom
olivier-singla:kdump-doc
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This was referenced Nov 7, 2019
lguohan
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Nov 9, 2019
doc/kdump/SONiC-kdump.md
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user can choose to do warm reboot or fast reboot, recommend to do not integrate reboot into this config tool.
In the event of a kernel crash, we need to gather as much information as possible to understand and identify the root cause of the crash. Currently, the kernel does not provide much information, which make kernel crash investigation difficult and time consuming. Fortunately, there is a way in the kernel to provide more information in the case of a kernel crash. kdump is a feature of the Linux kernel that creates crash dumps in the event of a kernel crash. This proposal will add kernel kdump support. An extension to the CLI utilities config and show is provided to configure and manage kdump: - enable / disable kdump functionality - configure kdump (how many kernel core files can be stored locally, how much memory is allocated for kdump) - view kernel crash logs
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In the event of a kernel crash, we need to gather as much information as possible to understand and identify the root cause of the crash. Currently, the kernel does not provide much information, which make kernel crash investigation difficult and time consuming. Fortunately, there is a way in the kernel to provide more information in the case of a kernel crash. kdump is a feature of the Linux kernel that creates crash dumps in the event of a kernel crash. This PR will add kernel kdump support. Please note that there is another PR in sonic-utilities which is also needed: sonic-net/sonic-buildimage#3722 An extension to the CLI utilities config and show is provided to configure and manage kdump: view kdump status (enabled/disabled, active, configuration, stored crash files) enable / disable kdump functionality configure kdump (how many kernel crash logs can be saved, memory allocated for capture kernel) view kernel crash logs There is a design document which describes this kdump implementation: sonic-net/SONiC#510
malletvapid23
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Aug 3, 2023
In the event of a kernel crash, we need to gather as much information as possible to understand and identify the root cause of the crash. Currently, the kernel does not provide much information, which make kernel crash investigation difficult and time consuming. Fortunately, there is a way in the kernel to provide more information in the case of a kernel crash. kdump is a feature of the Linux kernel that creates crash dumps in the event of a kernel crash. This PR will add kernel kdump support. Please note that there is another PR in sonic-utilities which is also needed: sonic-net/sonic-buildimage#3722 An extension to the CLI utilities config and show is provided to configure and manage kdump: view kdump status (enabled/disabled, active, configuration, stored crash files) enable / disable kdump functionality configure kdump (how many kernel crash logs can be saved, memory allocated for capture kernel) view kernel crash logs There is a design document which describes this kdump implementation: sonic-net/SONiC#510
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In the event of a kernel crash, we need to gather as much information
as possible to understand and identify the root cause of the crash.
Currently, the kernel does not provide much information, which make
kernel crash investigation difficult and time consuming.
Fortunately, there is a way in the kernel to provide more information
in the case of a kernel crash. kdump is a feature of the Linux kernel
that creates crash dumps in the event of a kernel crash. This proposal
will add kernel kdump support.
An extension to the CLI utilities config and show is provided to
configure and manage kdump:
how much memory is allocated for kdump)