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Add CONFIG_USERFAULTFD=y
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* <code>CONFIG_IA32_EMULATION=y</code> (x86 only) (Executable file formats -> Emulations -> IA32 Emulation)
* <code>CONFIG_IA32_EMULATION=y</code> (x86 only) (Executable file formats -> Emulations -> IA32 Emulation)
−For some [[usage scenarios]] there is an ability to track memory changes and produce [[incremental dumps]]. Need to enable the <code>CONFIG_MEM_SOFT_DIRTY=y</code> (optional) (Processor type and features -> Track memory changes).
+For some [[usage scenarios]] there is an ability to track memory changes and produce [[incremental dumps]]. Need to enable the <code>CONFIG_MEM_SOFT_DIRTY=y</code> (optional) (Processor type and features -> Track memory changes). In order to enable [[lazy migration]], the [[userfaultfd]] system call is required <code>CONFIG_USERFAULTFD=y</code> (optional) (General setup -> Enable userfaultfd() system call).
In the beginning of the project we had our [[custom kernel]], which contained some experimental CRIU related patches. Nowadays this is almost not used.
In the beginning of the project we had our [[custom kernel]], which contained some experimental CRIU related patches. Nowadays this is almost not used.
[[Category: Building]]
[[Category: Building]]