config KERNEL_CRASHLOG
bool "Crash logging"
- depends on !(arm || powerpc || sparc)
+ depends on !(arm || powerpc || sparc || TARGET_uml)
default y
config KERNEL_SWAP
default y
config KERNEL_DEBUG_FS
- bool "Compile the kernel with Debug FileSystem enabled"
+ bool "Compile the kernel with debug filesystem enabled"
default y
help
debugfs is a virtual file system that kernel developers use to put
debugging files into. Enable this option to be able to read and
- write to these files.
+ write to these files. Many common debugging facilities, such as
+ ftrace, require the existence of debugfs.
config KERNEL_PERF_EVENTS
bool
bool "Compile the kernel with symbol table information"
default y
help
- This will give you more information in stack traces from kernel oopses
+ This will give you more information in stack traces from kernel oopses.
config KERNEL_FTRACE
bool "Compile the kernel with tracing support"
depends on arm
select KERNEL_DEBUG_LL_UART_NONE
help
- ARM low level debugging
+ ARM low level debugging.
config KERNEL_DYNAMIC_DEBUG
bool "Compile the kernel with dynamic printk"
config KERNEL_EARLY_PRINTK
bool "Compile the kernel with early printk"
+ default y if TARGET_bcm53xx
default n
depends on arm
select KERNEL_DEBUG_KERNEL
select KERNEL_DEBUG_LL if arm
help
- Compile the kernel with early printk support.
- This is only useful for debugging purposes to send messages
- over the serial console in early boot.
+ Compile the kernel with early printk support. This is only useful for
+ debugging purposes to send messages over the serial console in early boot.
Enable this to debug early boot problems.
config KERNEL_AIO
bool "Enable printk timestamps"
default y
+config KERNEL_SLUB_DEBUG
+ bool
+
+config KERNEL_SLUB_DEBUG_ON
+ bool
+
+config KERNEL_SLABINFO
+ select KERNEL_SLUB_DEBUG
+ select KERNEL_SLUB_DEBUG_ON
+ bool "Enable /proc slab debug info"
+
+config KERNEL_PROC_PAGE_MONITOR
+ bool "Enable /proc page monitoring"
+
config KERNEL_RELAY
bool
config KERNEL_CGROUP_FREEZER
bool "Freezer cgroup subsystem"
- default n
+ default y
help
Provides a way to freeze and unfreeze all tasks in a
cgroup.
usage tracking struct at boot. Total amount of this is printed out
at boot.
- Only enable when you're ok with these trade offs and really
+ Only enable when you're ok with these tradeoffs and really
sure you need the memory resource controller. Even when you enable
this, you can set "cgroup_disable=memory" at your boot option to
- disable memory resource controller and you can avoid overheads.
- (and lose benefits of memory resource controller)
+ disable memory resource controller and you can avoid overheads
+ (but lose benefits of memory resource controller).
This config option also selects MM_OWNER config option, which
could in turn add some fork/exit overhead.
which want to enable the feature but keep it disabled by default
and let the user enable it by swapaccount boot command line
parameter should have this option unselected.
- For those who want to have the feature enabled by default should
- select this option (if, for some reason, they need to disable it
+
+ Those who want to have the feature enabled by default should
+ select this option (if, for some reason, they need to disable it,
then swapaccount=0 does the trick).
the kmem extension can use it to guarantee that no group of processes
will ever exhaust kernel resources alone.
- config KERNEL_PERF_EVENTS
- bool
- default y if KERNEL_CGROUP_PERF
-
config KERNEL_CGROUP_PERF
bool "Enable perf_event per-cpu per-container group (cgroup) monitoring"
+ select KERNEL_PERF_EVENTS
default n
help
This option extends the per-cpu mode to restrict monitoring to
bool "UTS namespace"
default y
help
- In this namespace tasks see different info provided
- with the uname() system call
+ In this namespace, tasks see different info provided
+ with the uname() system call.
config KERNEL_IPC_NS
bool "IPC namespace"
default y
help
- In this namespace tasks work with IPC ids which correspond to
+ In this namespace, tasks work with IPC ids which correspond to
different IPC objects in different namespaces.
config KERNEL_USER_NS
operations on message queues.
endif
+
+config KERNEL_SECCOMP
+ bool "Enable seccomp support"
+ depends on !(TARGET_uml || TARGET_avr32)
+ default n
+ help
+ Build kernel with support for seccomp.
+
+config KERNEL_SECCOMP_FILTER
+ bool "Enable seccomp filter support"
+ depends on KERNEL_SECCOMP
+ default n
+ help
+ Build kernel with support for seccomp BPF programs.