AVR32 AVR32 architecture is enabled.
AX25 Appropriate AX.25 support is enabled.
BLACKFIN Blackfin architecture is enabled.
+ DM Device mapper support is enabled.
DRM Direct Rendering Management support is enabled.
DYNAMIC_DEBUG Build in debug messages and enable them at runtime
EDD BIOS Enhanced Disk Drive Services (EDD) is enabled
Also note the kernel might malfunction if you disable
some critical bits.
+ cma=nn[MG] [ARM,KNL]
+ Sets the size of kernel global memory area for contiguous
+ memory allocations. For more information, see
+ include/linux/dma-contiguous.h
+
cmo_free_hint= [PPC] Format: { yes | no }
Specify whether pages are marked as being inactive
when they are freed. This is used in CMO environments
a hypervisor.
Default: yes
+ coherent_pool=nn[KMG] [ARM,KNL]
+ Sets the size of memory pool for coherent, atomic dma
+ allocations.
+
code_bytes [X86] How many bytes of object code to print
in an oops report.
Range: 0 - 8192
a memory unit (amount[KMG]). See also
Documentation/kdump/kdump.txt for an example.
+ cros_shared_mem=[ARM]
+ Format: <hex integer>
+ Base address of the ChromeOS shared memory window,
+ aligned at megabyte boundary, window size is fixed at
+ 1 megabyte.
+
cs89x0_dma= [HW,NET]
Format: <dma>
Disable PIN 1 of APIC timer
Can be useful to work around chipset bugs.
+ dm= [DM] Allows early creation of a device-mapper device.
+ See Documentation/device-mapper/boot.txt.
+
+ dmasound= [HW,OSS] Sound subsystem buffers
+
dma_debug=off If the kernel is compiled with DMA_API_DEBUG support,
this option disables the debugging code at boot.
The default is to send the implementation identification
information.
+ nfsd.nfs4_disable_idmapping=
+ [NFSv4] When set to the default of '1', the NFSv4
+ server will return only numeric uids and gids to
+ clients using auth_sys, and will accept numeric uids
+ and gids from such clients. This is intended to ease
+ migration from NFSv2/v3.
objlayoutdriver.osd_login_prog=
[NFS] [OBJLAYOUT] sets the pathname to the program which
shutdown the other cpus. Instead use the REBOOT_VECTOR
irq.
+ nomodule Disable module load
+
nopat [X86] Disable PAT (page attribute table extension of
pagetables) support.