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Kernel 3.18 development – the kernel column

Dec 01, 2014, 11:00 (0 Talkback[s])


Re-Imagining Linux Platforms to Meet the Needs of Cloud Service Providers

The Linux kernel includes support for the kexec subsystem which provides a means for a running Linux kernel to chain load into another kernel.

It can be used to test another kernel without a complete reboot, but it is most commonly used as part of the kdump kernel crash dumping framework to capture a kernel crash dump and save logs. When the kernel crashes (especially in Enterprise Linux distros), it can be configured to automatically execute a special kdump kernel that has been previously loaded into a reserved region of memory.

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