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35 lines
940 B
Plaintext
35 lines
940 B
Plaintext
---
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syntax: markdown
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tags: [tldr, linux]
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source: https://github.com/tldr-pages/tldr.git
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---
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# chmem
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> Modify the state of memory blocks (online or offline) in a Linux system.
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> Typically used in virtualized environments to manage memory hotplug.
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> More information: <https://manned.org/chmem>.
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- Set a memory block offline:
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`sudo chmem {{[-b|--block]}} {{[-d|--disable]}} {{block_number}}`
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- Set a memory block online:
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`sudo chmem {{[-b|--block]}} {{[-e|--enable]}} {{block_number}}`
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- Set a memory range offline using hexadecimal addresses:
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`sudo chmem {{[-d|--disable]}} 0x{{start_address}}-0x{{end_address}}`
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- Set a memory range online using hexadecimal addresses:
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`sudo chmem {{[-e|--enable]}} 0x{{start_address}}-0x{{end_address}}`
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- Set memory online and assign it to a specific zone (e.g., Movable):
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`sudo chmem {{[-e|--enable]}} 0x{{start_address}} {{[-z|--zone]}} {{Movable}}`
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- Display help:
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`chmem {{[-h|--help]}}`
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