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181 bytes added ,  05:51, 23 December 2018
m
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)
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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).
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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]]
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