Difference between revisions of "CLI/opt/--allow-uprobes"
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The <code>--allow-uprobes</code> command-line option allows CRIU to checkpoint and restore processes that have (or once had) a a kernel-created uprobes VMA (user-space probes virtual memory area). Since this VMA persists even after the probe is removed, CRIU cannot safely infer the probe state at checkpoint time without this option. | The <code>--allow-uprobes</code> command-line option allows CRIU to checkpoint and restore processes that have (or once had) a a kernel-created uprobes VMA (user-space probes virtual memory area). Since this VMA persists even after the probe is removed, CRIU cannot safely infer the probe state at checkpoint time without this option. | ||
| − | {{Note|If a checkpoint has been created with <code>--allow-uprobes</code>, this option '''must''' be specified during restore and any relevant uprobes must remain active. This option does not create or manage uprobes; it only instructs CRIU to accept the presence of the corresponding VMAs.}} | + | {{Note|If a checkpoint has been created with <code>--allow-uprobes</code>, this option '''must''' be specified during restore and any relevant uprobes '''must''' remain active. This option does not create or manage uprobes; it only instructs CRIU to accept the presence of the corresponding VMAs.}} |
Revision as of 12:41, 7 October 2025
The --allow-uprobes command-line option allows CRIU to checkpoint and restore processes that have (or once had) a a kernel-created uprobes VMA (user-space probes virtual memory area). Since this VMA persists even after the probe is removed, CRIU cannot safely infer the probe state at checkpoint time without this option.
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Note: If a checkpoint has been created with --allow-uprobes, this option must be specified during restore and any relevant uprobes must remain active. This option does not create or manage uprobes; it only instructs CRIU to accept the presence of the corresponding VMAs.
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