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→Linux Kernel
Note you might have to enable
Note you might have to enable
; <code>CONFIG_EXPERT</code>
; <code>CONFIG_EXPERT=y</code>
: General setup -> Configure standard kernel features (expert users)
: General setup -> Configure standard kernel features (expert users)
option, which depends on
option, which depends on
; <code>CONFIG_EMBEDDED</code>
; <code>CONFIG_EMBEDDED=y</code>
: General setup -> Embedded system
: General setup -> Embedded system
(welcome to Kconfig reverse chains hell).
(welcome to Kconfig reverse chains hell).
The following options must be enabled for CRIU to work:
The following options must be enabled for CRIU to work:
; <code>CONFIG_CHECKPOINT_RESTORE</code>
; <code>CONFIG_CHECKPOINT_RESTORE=y</code>
: General setup -> Checkpoint/restore support
: General setup -> Checkpoint/restore support
; <code>CONFIG_NAMESPACES</code>
; <code>CONFIG_NAMESPACES=y</code>
: General setup -> Namespaces support
: General setup -> Namespaces support
; <code>CONFIG_UTS_NS</code>
; <code>CONFIG_UTS_NS=y</code>
: General setup -> Namespaces support -> UTS namespace
: General setup -> Namespaces support -> UTS namespace
; <code>CONFIG_IPC_NS</code>
; <code>CONFIG_IPC_NS=y</code>
: General setup -> Namespaces support -> IPC namespace
: General setup -> Namespaces support -> IPC namespace
; <code>CONFIG_PID_NS</code>
; <code>CONFIG_PID_NS=y</code>
: General setup -> Namespaces support -> PID namespaces
: General setup -> Namespaces support -> PID namespaces
; <code>CONFIG_NET_NS</code>
; <code>CONFIG_NET_NS=y</code>
: General setup -> Namespaces support -> Network namespace
: General setup -> Namespaces support -> Network namespace
; <code>CONFIG_FHANDLE</code>
; <code>CONFIG_FHANDLE=y</code>
: General setup -> open by fhandle syscalls
: General setup -> open by fhandle syscalls
; <code>CONFIG_EVENTFD</code>
; <code>CONFIG_EVENTFD=y</code>
: General setup -> Enable eventfd() system call
: General setup -> Enable eventfd() system call
; <code>CONFIG_EPOLL</code>
; <code>CONFIG_EPOLL=y</code>
: General setup -> Enable eventpoll support
: General setup -> Enable eventpoll support
; <code>CONFIG_INOTIFY_USER</code>
; <code>CONFIG_INOTIFY_USER=y</code>
: File systems -> Inotify support for userspace
: File systems -> Inotify support for userspace
; <code>CONFIG_IA32_EMULATION</code>
; <code>CONFIG_IA32_EMULATION=y</code> (x86 only)
: Executable file formats -> Emulations -> IA32 Emulation
: Executable file formats -> Emulations -> IA32 Emulation
; <code>CONFIG_UNIX_DIAG</code>
; <code>CONFIG_UNIX_DIAG=y</code>
: Networking support -> Networking options -> Unix domain sockets -> UNIX: socket monitoring interface
: Networking support -> Networking options -> Unix domain sockets -> UNIX: socket monitoring interface
; <code>CONFIG_INET_DIAG</code>
; <code>CONFIG_INET_DIAG=y</code>
: Networking support -> Networking options -> TCP/IP networking -> INET: socket monitoring interface
: Networking support -> Networking options -> TCP/IP networking -> INET: socket monitoring interface
; <code>CONFIG_INET_UDP_DIAG</code>
; <code>CONFIG_INET_UDP_DIAG=y</code>
: Networking support -> Networking options -> TCP/IP networking -> INET: socket monitoring interface -> UDP: socket monitoring interface
: Networking support -> Networking options -> TCP/IP networking -> INET: socket monitoring interface -> UDP: socket monitoring interface
; <code>CONFIG_PACKET_DIAG</code>
; <code>CONFIG_PACKET_DIAG=y</code>
: Networking support -> Networking options -> Packet socket -> Packet: sockets monitoring interface
: Networking support -> Networking options -> Packet socket -> Packet: sockets monitoring interface
; <code>CONFIG_NETLINK_DIAG</code>
; <code>CONFIG_NETLINK_DIAG=y</code>
: Networking support -> Networking options -> Netlink socket -> Netlink: sockets monitoring interface
: Networking support -> Networking options -> Netlink socket -> Netlink: sockets monitoring interface
For some [[usage scenarios]] there is an ability to track memory changes and produce [[incremental dumps]]. Need to enable
For some [[usage scenarios]] there is an ability to track memory changes and produce [[incremental dumps]]. Need to enable
; <code>CONFIG_MEM_SOFT_DIRTY</code>
; <code>CONFIG_MEM_SOFT_DIRTY=y</code> (optional)
: Processor type and features -> Track memory changes
: Processor type and features -> Track memory changes
At the moment it's known that CRIU will '''NOT''' work if packet generator module is loaded. Thus make sure
At the moment it's known that CRIU will '''NOT''' work if packet generator module is loaded. Thus make sure
that either module is unloaded or not compiled at all.
that either module is unloaded or not compiled at all.
; <code>CONFIG_NET_PKTGEN</code>
; <code># CONFIG_NET_PKTGEN is not set</code>
: Networking support -> Networking options -> Network testing -> Packet generator
: Networking support -> Networking options -> Network testing -> Packet generator