1 files changed, 317 insertions, 267 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 421920897a37..e87bdbfbcc75 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -17,6 +17,12 @@ are specified on the kernel command line with the module name plus
 
         usbcore.blinkenlights=1
 
+Hyphens (dashes) and underscores are equivalent in parameter names, so
+        log_buf_len=1M print-fatal-signals=1
+can also be entered as
+        log-buf-len=1M print_fatal_signals=1
+
+
 This document may not be entirely up to date and comprehensive. The command
 "modinfo -p ${modulename}" shows a current list of all parameters of a loadable
 module. Loadable modules, after being loaded into the running kernel, also
@@ -50,6 +56,7 @@ parameter is applicable:
         ISAPNP  ISA PnP code is enabled.
         ISDN    Appropriate ISDN support is enabled.
         JOY     Appropriate joystick support is enabled.
+        KMEMTRACE kmemtrace is enabled.
         LIBATA  Libata driver is enabled
         LP      Printer support is enabled.
         LOOP    Loopback device support is enabled.
@@ -133,7 +140,7 @@ and is between 256 and 4096 characters. It is defined in the file
 ./include/asm/setup.h as COMMAND_LINE_SIZE.
 
 
-        acpi=           [HW,ACPI,X86-64,i386]
+        acpi=           [HW,ACPI,X86]
                         Advanced Configuration and Power Interface
                         Format: { force | off | ht | strict | noirq | rsdt }
                         force -- enable ACPI if default was off
@@ -152,60 +159,6 @@ and is between 256 and 4096 characters. It is defined in the file
                         1,0: use 1st APIC table
                         default: 0
 
-        acpi_sleep=     [HW,ACPI] Sleep options
-                        Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig,
-                                  old_ordering, s4_nonvs }
-                        See Documentation/power/video.txt for information on
-                        s3_bios and s3_mode.
-                        s3_beep is for debugging; it makes the PC's speaker beep
-                        as soon as the kernel's real-mode entry point is called.
-                        s4_nohwsig prevents ACPI hardware signature from being
-                        used during resume from hibernation.
-                        old_ordering causes the ACPI 1.0 ordering of the _PTS
-                        control method, with respect to putting devices into
-                        low power states, to be enforced (the ACPI 2.0 ordering
-                        of _PTS is used by default).
-                        s4_nonvs prevents the kernel from saving/restoring the
-                        ACPI NVS memory during hibernation.
-
-        acpi_sci=       [HW,ACPI] ACPI System Control Interrupt trigger mode
-                        Format: { level | edge | high | low }
-
-        acpi_irq_balance [HW,ACPI]
-                        ACPI will balance active IRQs
-                        default in APIC mode
-
-        acpi_irq_nobalance [HW,ACPI]
-                        ACPI will not move active IRQs (default)
-                        default in PIC mode
-
-        acpi_irq_pci=   [HW,ACPI] If irq_balance, clear listed IRQs for
-                        use by PCI
-                        Format: <irq>,<irq>...
-
-        acpi_irq_isa=   [HW,ACPI] If irq_balance, mark listed IRQs used by ISA
-                        Format: <irq>,<irq>...
-
-        acpi_no_auto_ssdt       [HW,ACPI] Disable automatic loading of SSDT
-
-        acpi_os_name=   [HW,ACPI] Tell ACPI BIOS the name of the OS
-                        Format: To spoof as Windows 98: ="Microsoft Windows"
-
-        acpi_osi=       [HW,ACPI] Modify list of supported OS interface strings
-                        acpi_osi="string1"      # add string1 -- only one string
-                        acpi_osi="!string2"     # remove built-in string2
-                        acpi_osi=               # disable all strings
-
-        acpi_serialize  [HW,ACPI] force serialization of AML methods
-
-        acpi_skip_timer_override [HW,ACPI]
-                        Recognize and ignore IRQ0/pin2 Interrupt Override.
-                        For broken nForce2 BIOS resulting in XT-PIC timer.
-        acpi_use_timer_override [HW,ACPI]
-                        Use timer override. For some broken Nvidia NF5 boards
-                        that require a timer override, but don't have
-                        HPET
-
         acpi_backlight= [HW,ACPI]
                         acpi_backlight=vendor
                         acpi_backlight=video
@@ -213,11 +166,6 @@ and is between 256 and 4096 characters. It is defined in the file
                         (e.g. thinkpad_acpi, sony_acpi, etc.) instead
                         of the ACPI video.ko driver.
 
-        acpi_display_output=    [HW,ACPI]
-                        acpi_display_output=vendor
-                        acpi_display_output=video
-                        See above.
-
         acpi.debug_layer=       [HW,ACPI,ACPI_DEBUG]
         acpi.debug_level=       [HW,ACPI,ACPI_DEBUG]
                         Format: <int>
@@ -246,6 +194,41 @@ and is between 256 and 4096 characters. It is defined in the file
                         unusable.  The "log_buf_len" parameter may be useful
                         if you need to capture more output.
 
+        acpi_display_output=    [HW,ACPI]
+                        acpi_display_output=vendor
+                        acpi_display_output=video
+                        See above.
+
+        acpi_irq_balance [HW,ACPI]
+                        ACPI will balance active IRQs
+                        default in APIC mode
+
+        acpi_irq_nobalance [HW,ACPI]
+                        ACPI will not move active IRQs (default)
+                        default in PIC mode
+
+        acpi_irq_isa=   [HW,ACPI] If irq_balance, mark listed IRQs used by ISA
+                        Format: <irq>,<irq>...
+
+        acpi_irq_pci=   [HW,ACPI] If irq_balance, clear listed IRQs for
+                        use by PCI
+                        Format: <irq>,<irq>...
+
+        acpi_no_auto_ssdt       [HW,ACPI] Disable automatic loading of SSDT
+
+        acpi_os_name=   [HW,ACPI] Tell ACPI BIOS the name of the OS
+                        Format: To spoof as Windows 98: ="Microsoft Windows"
+
+        acpi_osi=       [HW,ACPI] Modify list of supported OS interface strings
+                        acpi_osi="string1"      # add string1 -- only one string
+                        acpi_osi="!string2"     # remove built-in string2
+                        acpi_osi=               # disable all strings
+
+        acpi_pm_good    [X86]
+                        Override the pmtimer bug detection: force the kernel
+                        to assume that this machine's pmtimer latches its value
+                        and always returns good values.
+
         acpi.power_nocheck=     [HW,ACPI]
                         Format: 1/0 enable/disable the check of power state.
                         On some bogus BIOS the _PSC object/_STA object of
@@ -254,30 +237,57 @@ and is between 256 and 4096 characters. It is defined in the file
                         power state again in power transition.
                         1 : disable the power state check
 
-        acpi_pm_good    [X86-32,X86-64]
-                        Override the pmtimer bug detection: force the kernel
-                        to assume that this machine's pmtimer latches its value
-                        and always returns good values.
+        acpi_sci=       [HW,ACPI] ACPI System Control Interrupt trigger mode
+                        Format: { level | edge | high | low }
 
-        agp=            [AGP]
-                        { off | try_unsupported }
-                        off: disable AGP support
-                        try_unsupported: try to drive unsupported chipsets
-                                (may crash computer or cause data corruption)
+        acpi_serialize  [HW,ACPI] force serialization of AML methods
 
-        enable_timer_pin_1 [i386,x86-64]
-                        Enable PIN 1 of APIC timer
-                        Can be useful to work around chipset bugs
-                        (in particular on some ATI chipsets).
-                        The kernel tries to set a reasonable default.
+        acpi_skip_timer_override [HW,ACPI]
+                        Recognize and ignore IRQ0/pin2 Interrupt Override.
+                        For broken nForce2 BIOS resulting in XT-PIC timer.
 
-        disable_timer_pin_1 [i386,x86-64]
-                        Disable PIN 1 of APIC timer
-                        Can be useful to work around chipset bugs.
+        acpi_sleep=     [HW,ACPI] Sleep options
+                        Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig,
+                                  old_ordering, s4_nonvs }
+                        See Documentation/power/video.txt for information on
+                        s3_bios and s3_mode.
+                        s3_beep is for debugging; it makes the PC's speaker beep
+                        as soon as the kernel's real-mode entry point is called.
+                        s4_nohwsig prevents ACPI hardware signature from being
+                        used during resume from hibernation.
+                        old_ordering causes the ACPI 1.0 ordering of the _PTS
+                        control method, with respect to putting devices into
+                        low power states, to be enforced (the ACPI 2.0 ordering
+                        of _PTS is used by default).
+                        s4_nonvs prevents the kernel from saving/restoring the
+                        ACPI NVS memory during hibernation.
+
+        acpi_use_timer_override [HW,ACPI]
+                        Use timer override. For some broken Nvidia NF5 boards
+                        that require a timer override, but don't have HPET
+
+        acpi_enforce_resources= [ACPI]
+                        { strict | lax | no }
+                        Check for resource conflicts between native drivers
+                        and ACPI OperationRegions (SystemIO and SystemMemory
+                        only). IO ports and memory declared in ACPI might be
+                        used by the ACPI subsystem in arbitrary AML code and
+                        can interfere with legacy drivers.
+                        strict (default): access to resources claimed by ACPI
+                        is denied; legacy drivers trying to access reserved
+                        resources will fail to bind to device using them.
+                        lax: access to resources claimed by ACPI is allowed;
+                        legacy drivers trying to access reserved resources
+                        will bind successfully but a warning message is logged.
+                        no: ACPI OperationRegions are not marked as reserved,
+                        no further checks are performed.
 
         ad1848=         [HW,OSS]
                         Format: <io>,<irq>,<dma>,<dma2>,<type>
 
+        add_efi_memmap  [EFI; X86] Include EFI memory map in
+                        kernel's map of available physical RAM.
+
         advansys=       [HW,SCSI]
                         See header of drivers/scsi/advansys.c.
 
@@ -288,6 +298,12 @@ and is between 256 and 4096 characters. It is defined in the file
                         Format: <io>,<irq>,<dma>,<mss_io>,<mpu_io>,<mpu_irq>
                         See also header of sound/oss/aedsp16.c.
 
+        agp=            [AGP]
+                        { off | try_unsupported }
+                        off: disable AGP support
+                        try_unsupported: try to drive unsupported chipsets
+                                (may crash computer or cause data corruption)
+
         aha152x=        [HW,SCSI]
                         See Documentation/scsi/aha152x.txt.
 
@@ -335,7 +351,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         not play well with APC CPU idle - disable it if you have
                         APC and your system crashes randomly.
 
-        apic=           [APIC,i386] Advanced Programmable Interrupt Controller
+        apic=           [APIC,X86-32] Advanced Programmable Interrupt Controller
                         Change the output verbosity whilst booting
                         Format: { quiet (default) | verbose | debug }
                         Change the amount of debugging information output
@@ -415,12 +431,6 @@ and is between 256 and 4096 characters. It is defined in the file
                         possible to determine what the correct size should be.
                         This option provides an override for these situations.
 
-        security=       [SECURITY] Choose a security module to enable at boot.
-                        If this boot parameter is not specified, only the first
-                        security module asking for security registration will be
-                        loaded. An invalid security module name will be treated
-                        as if no module has been chosen.
-
         capability.disable=
                         [SECURITY] Disable capabilities.  This would normally
                         be used only if an alternative security model is to be
@@ -487,29 +497,11 @@ and is between 256 and 4096 characters. It is defined in the file
                         Also note the kernel might malfunction if you disable
                         some critical bits.
 
-        code_bytes      [IA32/X86_64] How many bytes of object code to print
+        code_bytes      [X86] How many bytes of object code to print
                         in an oops report.
                         Range: 0 - 8192
                         Default: 64
 
-        dma_debug=off   If the kernel is compiled with DMA_API_DEBUG support
-                        this option disables the debugging code at boot.
-
-        dma_debug_entries=<number>
-                        This option allows to tune the number of preallocated
-                        entries for DMA-API debugging code. One entry is
-                        required per DMA-API allocation. Use this if the
-                        DMA-API debugging code disables itself because the
-                        architectural default is too low.
-
-        hpet=           [X86-32,HPET] option to control HPET usage
-                        Format: { enable (default) | disable | force |
-                                verbose }
-                        disable: disable HPET and use PIT instead
-                        force: allow force enabled of undocumented chips (ICH4,
-                        VIA, nVidia)
-                        verbose: show contents of HPET registers during setup
-
         com20020=       [HW,NET] ARCnet - COM20020 chipset
                         Format:
                         <io>[,<irq>[,<nodeID>[,<backplane>[,<ckp>[,<timeout>]]]]]
@@ -553,23 +545,6 @@ and is between 256 and 4096 characters. It is defined in the file
                         console=brl,ttyS0
                 For now, only VisioBraille is supported.
 
-        earlycon=       [KNL] Output early console device and options.
-                uart[8250],io,<addr>[,options]
-                uart[8250],mmio,<addr>[,options]
-                        Start an early, polled-mode console on the 8250/16550
-                        UART at the specified I/O port or MMIO address.
-                        The options are the same as for ttyS, above.
-
-        no_console_suspend
-                        [HW] Never suspend the console
-                        Disable suspending of consoles during suspend and
-                        hibernate operations.  Once disabled, debugging
-                        messages can reach various consoles while the rest
-                        of the system is being put to sleep (ie, while
-                        debugging driver suspend/resume hooks).  This may
-                        not work reliably with all consoles, but is known
-                        to work with serial and VGA consoles.
-
         coredump_filter=
                         [KNL] Change the default value for
                         /proc/<pid>/coredump_filter.
@@ -617,36 +592,22 @@ and is between 256 and 4096 characters. It is defined in the file
 
         debug_objects   [KNL] Enable object debugging
 
+        no_debug_objects
+                        [KNL] Disable object debugging
+
         debugpat        [X86] Enable PAT debugging
 
         decnet.addr=    [HW,NET]
                         Format: <area>[,<node>]
                         See also Documentation/networking/decnet.txt.
 
-        vt.default_blu= [VT]
-                        Format: <blue0>,<blue1>,<blue2>,...,<blue15>
-                        Change the default blue palette of the console.
-                        This is a 16-member array composed of values
-                        ranging from 0-255.
-
-        vt.default_grn= [VT]
-                        Format: <green0>,<green1>,<green2>,...,<green15>
-                        Change the default green palette of the console.
-                        This is a 16-member array composed of values
-                        ranging from 0-255.
-
-        vt.default_red= [VT]
-                        Format: <red0>,<red1>,<red2>,...,<red15>
-                        Change the default red palette of the console.
-                        This is a 16-member array composed of values
-                        ranging from 0-255.
-
-        vt.default_utf8=
-                        [VT]
-                        Format=<0|1>
-                        Set system-wide default UTF-8 mode for all tty's.
-                        Default is 1, i.e. UTF-8 mode is enabled for all
-                        newly opened terminals.
+        default_hugepagesz=
+                        [same as hugepagesz=] The size of the default
+                        HugeTLB page size. This is the size represented by
+                        the legacy /proc/ hugepages APIs, used for SHM, and
+                        default size when mounting hugetlbfs filesystems.
+                        Defaults to the default architecture's huge page size
+                        if not specified.
 
         dhash_entries=  [KNL]
                         Set number of hash buckets for dentry cache.
@@ -659,27 +620,9 @@ and is between 256 and 4096 characters. It is defined in the file
                         Documentation/serial/digiepca.txt.
 
         disable_mtrr_cleanup [X86]
-        enable_mtrr_cleanup [X86]
                         The kernel tries to adjust MTRR layout from continuous
                         to discrete, to make X server driver able to add WB
-                        entry later. This parameter enables/disables that.
-
-        mtrr_chunk_size=nn[KMG] [X86]
-                        used for mtrr cleanup. It is largest continous chunk
-                        that could hold holes aka. UC entries.
-
-        mtrr_gran_size=nn[KMG] [X86]
-                        Used for mtrr cleanup. It is granularity of mtrr block.
-                        Default is 1.
-                        Large value could prevent small alignment from
-                        using up MTRRs.
-
-        mtrr_spare_reg_nr=n [X86]
-                        Format: <integer>
-                        Range: 0,7 : spare reg number
-                        Default : 1
-                        Used for mtrr cleanup. It is spare mtrr entries number.
-                        Set to 2 or more if your graphical card needs more.
+                        entry later. This parameter disables that.
 
         disable_mtrr_trim [X86, Intel and AMD only]
                         By default the kernel will trim any uncacheable
@@ -687,13 +630,39 @@ and is between 256 and 4096 characters. It is defined in the file
                         MTRR settings.  This parameter disables that behavior,
                         possibly causing your machine to run very slowly.
 
+        disable_timer_pin_1 [X86]
+                        Disable PIN 1 of APIC timer
+                        Can be useful to work around chipset bugs.
+
         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.
+
+        dma_debug_entries=<number>
+                        This option allows to tune the number of preallocated
+                        entries for DMA-API debugging code. One entry is
+                        required per DMA-API allocation. Use this if the
+                        DMA-API debugging code disables itself because the
+                        architectural default is too low.
+
         dscc4.setup=    [NET]
 
         dtc3181e=       [HW,SCSI]
 
-        earlyprintk=    [X86-32,X86-64,SH,BLACKFIN]
+        dynamic_printk  Enables pr_debug()/dev_dbg() calls if
+                        CONFIG_DYNAMIC_PRINTK_DEBUG has been enabled.
+                        These can also be switched on/off via
+                        <debugfs>/dynamic_printk/modules
+
+        earlycon=       [KNL] Output early console device and options.
+                uart[8250],io,<addr>[,options]
+                uart[8250],mmio,<addr>[,options]
+                        Start an early, polled-mode console on the 8250/16550
+                        UART at the specified I/O port or MMIO address.
+                        The options are the same as for ttyS, above.
+
+        earlyprintk=    [X86,SH,BLACKFIN]
                         earlyprintk=vga
                         earlyprintk=serial[,ttySn[,baudrate]]
                         earlyprintk=dbgp
@@ -728,12 +697,23 @@ and is between 256 and 4096 characters. It is defined in the file
                         See Documentation/block/as-iosched.txt and
                         Documentation/block/deadline-iosched.txt for details.
 
-        elfcorehdr=     [IA64,PPC,SH,X86-32,X86_64]
+        elfcorehdr=     [IA64,PPC,SH,X86]
                         Specifies physical address of start of kernel core
                         image elf header. Generally kexec loader will
                         pass this option to capture kernel.
                         See Documentation/kdump/kdump.txt for details.
 
+        enable_mtrr_cleanup [X86]
+                        The kernel tries to adjust MTRR layout from continuous
+                        to discrete, to make X server driver able to add WB
+                        entry later. This parameter enables that.
+
+        enable_timer_pin_1 [X86]
+                        Enable PIN 1 of APIC timer
+                        Can be useful to work around chipset bugs
+                        (in particular on some ATI chipsets).
+                        The kernel tries to set a reasonable default.
+
         enforcing       [SELINUX] Set initial enforcing status.
                         Format: {"0" | "1"}
                         See security/selinux/Kconfig help text.
@@ -801,7 +781,7 @@ and is between 256 and 4096 characters. It is defined in the file
 
         hashdist=       [KNL,NUMA] Large hashes allocated during boot
                         are distributed across NUMA nodes.  Defaults on
-                        for IA-64, off otherwise.
+                        for 64bit NUMA, off otherwise.
                         Format: 0 | 1 (for off | on)
 
         hcl=            [IA-64] SGI's Hardware Graph compatibility layer
@@ -821,6 +801,16 @@ and is between 256 and 4096 characters. It is defined in the file
         hisax=          [HW,ISDN]
                         See Documentation/isdn/README.HiSax.
 
+        hlt             [BUGS=ARM,SH]
+
+        hpet=           [X86-32,HPET] option to control HPET usage
+                        Format: { enable (default) | disable | force |
+                                verbose }
+                        disable: disable HPET and use PIT instead
+                        force: allow force enabled of undocumented chips (ICH4,
+                                VIA, nVidia)
+                        verbose: show contents of HPET registers during setup
+
         hugepages=      [HW,X86-32,IA-64] HugeTLB pages to allocate at boot.
         hugepagesz=     [HW,IA-64,PPC,X86-64] The size of the HugeTLB pages.
                         On x86-64 and powerpc, this option can be specified
@@ -830,15 +820,6 @@ and is between 256 and 4096 characters. It is defined in the file
                         (when the CPU supports the "pdpe1gb" cpuinfo flag)
                         Note that 1GB pages can only be allocated at boot time
                         using hugepages= and not freed afterwards.
-        default_hugepagesz=
-                        [same as hugepagesz=] The size of the default
-                        HugeTLB page size. This is the size represented by
-                        the legacy /proc/ hugepages APIs, used for SHM, and
-                        default size when mounting hugetlbfs filesystems.
-                        Defaults to the default architecture's huge page size
-                        if not specified.
-
-        hlt             [BUGS=ARM,SH]
 
         hvc_iucv=       [S390] Number of z/VM IUCV hypervisor console (HVC)
                                terminal devices. Valid values: 0..8
@@ -899,6 +880,9 @@ and is between 256 and 4096 characters. It is defined in the file
         idebus=         [HW] (E)IDE subsystem - VLB/PCI bus speed
                         See Documentation/ide/ide.txt.
 
+        ide-pci-generic.all-generic-ide [HW] (E)IDE subsystem
+                        Claim all unknown PCI IDE storage controllers.
+
         idle=           [X86]
                         Format: idle=poll, idle=mwait, idle=halt, idle=nomwait
                         Poll forces a polling idle loop that can slightly
@@ -914,9 +898,6 @@ and is between 256 and 4096 characters. It is defined in the file
                         In such case C2/C3 won't be used again.
                         idle=nomwait: Disable mwait for CPU C-states
 
-        ide-pci-generic.all-generic-ide [HW] (E)IDE subsystem
-                        Claim all unknown PCI IDE storage controllers.
-
         ignore_loglevel [KNL]
                         Ignore loglevel setting - this will print /all/
                         kernel messages to the console. Useful for debugging.
@@ -950,25 +931,6 @@ and is between 256 and 4096 characters. It is defined in the file
         inport.irq=     [HW] Inport (ATI XL and Microsoft) busmouse driver
                         Format: <irq>
 
-        inttest=        [IA64]
-
-        iomem=          Disable strict checking of access to MMIO memory
-                strict  regions from userspace.
-                relaxed
-
-        iommu=          [x86]
-                off
-                force
-                noforce
-                biomerge
-                panic
-                nopanic
-                merge
-                nomerge
-                forcesac
-                soft
-
-
         intel_iommu=    [DMAR] Intel IOMMU driver (DMAR) option
                 on
                         Enable intel iommu driver.
@@ -992,7 +954,29 @@ and is between 256 and 4096 characters. It is defined in the file
                         result in a hardware IOTLB flush operation as opposed
                         to batching them for performance.
 
-        io_delay=       [X86-32,X86-64] I/O delay method
+        inttest=        [IA64]
+
+        iomem=          Disable strict checking of access to MMIO memory
+                strict  regions from userspace.
+                relaxed
+
+        iommu=          [x86]
+                off
+                force
+                noforce
+                biomerge
+                panic
+                nopanic
+                merge
+                nomerge
+                forcesac
+                soft
+
+        io7=            [HW] IO7 for Marvel based alpha systems
+                        See comment before marvel_specify_io7 in
+                        arch/alpha/kernel/core_marvel.c.
+
+        io_delay=       [X86] I/O delay method
                 0x80
                         Standard port 0x80 based delay
                 0xed
@@ -1002,10 +986,6 @@ and is between 256 and 4096 characters. It is defined in the file
                 none
                         No delay
 
-        io7=            [HW] IO7 for Marvel based alpha systems
-                        See comment before marvel_specify_io7 in
-                        arch/alpha/kernel/core_marvel.c.
-
         ip=             [IP_PNP]
                         See Documentation/filesystems/nfsroot.txt.
 
@@ -1016,12 +996,6 @@ and is between 256 and 4096 characters. It is defined in the file
         ips=            [HW,SCSI] Adaptec / IBM ServeRAID controller
                         See header of drivers/scsi/ips.c.
 
-        ports=          [IP_VS_FTP] IPVS ftp helper module
-                        Default is 21.
-                        Up to 8 (IP_VS_APP_MAX_PORTS) ports
-                        may be specified.
-                        Format: <port>,<port>....
-
         irqfixup        [HW]
                         When an interrupt is not handled search all handlers
                         for it. Intended to get systems with badly broken
@@ -1062,7 +1036,9 @@ and is between 256 and 4096 characters. It is defined in the file
         js=             [HW,JOY] Analog joystick
                         See Documentation/input/joystick.txt.
 
-        kernelcore=nn[KMG]      [KNL,X86-32,IA-64,PPC,X86-64] This parameter
+        keepinitrd      [HW,ARM]
+
+        kernelcore=nn[KMG]      [KNL,X86,IA-64,PPC] This parameter
                         specifies the amount of memory usable by the kernel
                         for non-movable allocations.  The requested amount is
                         spread evenly throughout all nodes in the system. The
@@ -1078,20 +1054,14 @@ and is between 256 and 4096 characters. It is defined in the file
                         use the HighMem zone if it exists, and the Normal
                         zone if it does not.
 
-        movablecore=nn[KMG]     [KNL,X86-32,IA-64,PPC,X86-64] This parameter
-                        is similar to kernelcore except it specifies the
-                        amount of memory used for migratable allocations.
-                        If both kernelcore and movablecore is specified,
-                        then kernelcore will be at *least* the specified
-                        value but may be more. If movablecore on its own
-                        is specified, the administrator must be careful
-                        that the amount of memory usable for all allocations
-                        is not too small.
+        kmemtrace.enable=       [KNL,KMEMTRACE] Format: { yes | no }
+                                Controls whether kmemtrace is enabled
+                                at boot-time.
 
-        keepinitrd      [HW,ARM]
-
-        kstack=N        [X86-32,X86-64] Print N words from the kernel stack
-                        in oops dumps.
+        kmemtrace.subbufs=n     [KNL,KMEMTRACE] Overrides the number of
+                        subbufs kmemtrace's relay channel has. Set this
+                        higher than default (KMEMTRACE_N_SUBBUFS in code) if
+                        you experience buffer overruns.
 
         kgdboc=         [HW] kgdb over consoles.
                         Requires a tty driver that supports console polling.
@@ -1102,6 +1072,9 @@ and is between 256 and 4096 characters. It is defined in the file
                         Configure the RouterBoard 532 series on-chip
                         Ethernet adapter MAC address.
 
+        kstack=N        [X86] Print N words from the kernel stack
+                        in oops dumps.
+
         l2cr=           [PPC]
 
         l3cr=           [PPC]
@@ -1109,7 +1082,7 @@ and is between 256 and 4096 characters. It is defined in the file
         lapic           [X86-32,APIC] Enable the local APIC even if BIOS
                         disabled it.
 
-        lapic_timer_c2_ok       [X86-32,x86-64,APIC] trust the local apic timer
+        lapic_timer_c2_ok       [X86,APIC] trust the local apic timer
                         in C2 power state.
 
         libata.dma=     [LIBATA] DMA control
@@ -1247,9 +1220,8 @@ and is between 256 and 4096 characters. It is defined in the file
                         (machvec) in a generic kernel.
                         Example: machvec=hpzx1_swiotlb
 
-        max_loop=       [LOOP] Maximum number of loopback devices that can
-                        be mounted
-                        Format: <1-256>
+        max_addr=nn[KMG]        [KNL,BOOT,ia64] All physical memory greater
+                        than or equal to this physical address is ignored.
 
         maxcpus=        [SMP] Maximum number of processors that an SMP kernel
                         should make use of.  maxcpus=n : n >= 0 limits the
@@ -1257,8 +1229,9 @@ and is between 256 and 4096 characters. It is defined in the file
                         it is equivalent to "nosmp", which also disables
                         the IO APIC.
 
-        max_addr=nn[KMG]        [KNL,BOOT,ia64] All physical memory greater than
-                        or equal to this physical address is ignored.
+        max_loop=       [LOOP] Maximum number of loopback devices that can
+                        be mounted
+                        Format: <1-256>
 
         max_luns=       [SCSI] Maximum number of LUNs to probe.
                         Should be between 1 and 2^32-1.
@@ -1294,7 +1267,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         [KNL,SH] Allow user to override the default size for
                         per-device physically contiguous DMA buffers.
 
-        memmap=exactmap [KNL,X86-32,X86_64] Enable setting of an exact
+        memmap=exactmap [KNL,X86] Enable setting of an exact
                         E820 memory map, as specified by the user.
                         Such memmap=exactmap lines can be constructed based on
                         BIOS output or other requirements. See the memmap=nn@ss
@@ -1385,6 +1358,16 @@ and is between 256 and 4096 characters. It is defined in the file
         mousedev.yres=  [MOUSE] Vertical screen resolution, used for devices
                         reporting absolute coordinates, such as tablets
 
+        movablecore=nn[KMG]     [KNL,X86,IA-64,PPC] This parameter
+                        is similar to kernelcore except it specifies the
+                        amount of memory used for migratable allocations.
+                        If both kernelcore and movablecore is specified,
+                        then kernelcore will be at *least* the specified
+                        value but may be more. If movablecore on its own
+                        is specified, the administrator must be careful
+                        that the amount of memory usable for all allocations
+                        is not too small.
+
         mpu401=         [HW,OSS]
                         Format: <io>,<irq>
 
@@ -1406,6 +1389,23 @@ and is between 256 and 4096 characters. It is defined in the file
                         [HW] Make the MicroTouch USB driver use raw coordinates
                         ('y', default) or cooked coordinates ('n')
 
+        mtrr_chunk_size=nn[KMG] [X86]
+                        used for mtrr cleanup. It is largest continous chunk
+                        that could hold holes aka. UC entries.
+
+        mtrr_gran_size=nn[KMG] [X86]
+                        Used for mtrr cleanup. It is granularity of mtrr block.
+                        Default is 1.
+                        Large value could prevent small alignment from
+                        using up MTRRs.
+
+        mtrr_spare_reg_nr=n [X86]
+                        Format: <integer>
+                        Range: 0,7 : spare reg number
+                        Default : 1
+                        Used for mtrr cleanup. It is spare mtrr entries number.
+                        Set to 2 or more if your graphical card needs more.
+
         n2=             [NET] SDL Inc. RISCom/N2 synchronous serial card
 
         NCR_D700=       [HW,SCSI]
@@ -1460,17 +1460,19 @@ and is between 256 and 4096 characters. It is defined in the file
                         when a NMI is triggered.
                         Format: [state][,regs][,debounce][,die]
 
-        nmi_watchdog=   [KNL,BUGS=X86-32,X86-64] Debugging features for SMP kernels
+        nmi_watchdog=   [KNL,BUGS=X86] Debugging features for SMP kernels
                         Format: [panic,][num]
                         Valid num: 0,1,2
                         0 - turn nmi_watchdog off
                         1 - use the IO-APIC timer for the NMI watchdog
                         2 - use the local APIC for the NMI watchdog using
-                        a performance counter. Note: This will use one performance
-                        counter and the local APIC's performance vector.
-                        When panic is specified panic when an NMI watchdog timeout occurs.
-                        This is useful when you use a panic=... timeout and need the box
-                        quickly up again.
+                        a performance counter. Note: This will use one
+                        performance counter and the local APIC's performance
+                        vector.
+                        When panic is specified, panic when an NMI watchdog
+                        timeout occurs.
+                        This is useful when you use a panic=... timeout and
+                        need the box quickly up again.
                         Instead of 1 and 2 it is possible to use the following
                         symbolic names: lapic and ioapic
                         Example: nmi_watchdog=2 or nmi_watchdog=panic,lapic
@@ -1479,6 +1481,16 @@ and is between 256 and 4096 characters. It is defined in the file
                         emulation library even if a 387 maths coprocessor
                         is present.
 
+        no_console_suspend
+                        [HW] Never suspend the console
+                        Disable suspending of consoles during suspend and
+                        hibernate operations.  Once disabled, debugging
+                        messages can reach various consoles while the rest
+                        of the system is being put to sleep (ie, while
+                        debugging driver suspend/resume hooks).  This may
+                        not work reliably with all consoles, but is known
+                        to work with serial and VGA consoles.
+
         noaliencache    [MM, NUMA, SLAB] Disables the allocation of alien
                         caches in the slab allocator.  Saves per-node memory,
                         but will impact performance.
@@ -1493,17 +1505,19 @@ and is between 256 and 4096 characters. It is defined in the file
 
         nocache         [ARM]
 
+        noclflush       [BUGS=X86] Don't use the CLFLUSH instruction
+
         nodelayacct     [KNL] Disable per-task delay accounting
 
         nodisconnect    [HW,SCSI,M68K] Disables SCSI disconnects.
 
         nodsp           [SH] Disable hardware DSP at boot time.
 
-        noefi           [X86-32,X86-64] Disable EFI runtime services support.
+        noefi           [X86] Disable EFI runtime services support.
 
         noexec          [IA-64]
 
-        noexec          [X86-32,X86-64]
+        noexec          [X86]
                         On X86-32 available only on PAE configured kernels.
                         noexec=on: enable non-executable mappings (default)
                         noexec=off: disable non-executable mappings
@@ -1521,8 +1535,6 @@ and is between 256 and 4096 characters. It is defined in the file
                         register save and restore. The kernel will only save
                         legacy floating-point registers on task switch.
 
-        noclflush       [BUGS=X86] Don't use the CLFLUSH instruction
-
         nohlt           [BUGS=ARM,SH] Tells the kernel that the sleep(SH) or
                         wfi(ARM) instruction doesn't work correctly and not to
                         use it. This is also useful when using JTAG debugger.
@@ -1546,10 +1558,12 @@ and is between 256 and 4096 characters. It is defined in the file
                         Valid arguments: on, off
                         Default: on
 
+        noiotrap        [SH] Disables trapped I/O port accesses.
+
         noirqdebug      [X86-32] Disables the code which attempts to detect and
                         disable unhandled interrupt sources.
 
-        no_timer_check  [X86-32,X86_64,APIC] Disables the code which tests for
+        no_timer_check  [X86,APIC] Disables the code which tests for
                         broken timer IRQ sources.
 
         noisapnp        [ISAPNP] Disables ISA PnP code.
@@ -1565,12 +1579,6 @@ and is between 256 and 4096 characters. It is defined in the file
 
         nolapic_timer   [X86-32,APIC] Do not use the local APIC timer.
 
-        nox2apic        [X86-64,APIC] Do not enable x2APIC mode.
-
-        x2apic_phys     [X86-64,APIC] Use x2apic physical mode instead of
-                        default x2apic cluster mode on platforms
-                        supporting x2apic.
-
         noltlbs         [PPC] Do not use large page/tlb entries for kernel
                         lowmem mapping on PPC40x.
 
@@ -1581,6 +1589,9 @@ and is between 256 and 4096 characters. It is defined in the file
         nomfgpt         [X86-32] Disable Multi-Function General Purpose
                         Timer usage (for AMD Geode machines).
 
+        norandmaps      Don't use address space randomization.  Equivalent to
+                        echo 0 > /proc/sys/kernel/randomize_va_space
+
         noreplace-paravirt      [X86-32,PV_OPS] Don't patch paravirt_ops
 
         noreplace-smp   [X86-32,SMP] Don't replace SMP instructions
@@ -1615,17 +1626,19 @@ and is between 256 and 4096 characters. It is defined in the file
 
         nowb            [ARM]
 
+        nox2apic        [X86-64,APIC] Do not enable x2APIC mode.
+
         nptcg=          [IA64] Override max number of concurrent global TLB
                         purges which is reported from either PAL_VM_SUMMARY or
                         SAL PALO.
 
+        nr_uarts=       [SERIAL] maximum number of UARTs to be registered.
+
         numa_zonelist_order= [KNL, BOOT] Select zonelist order for NUMA.
                         one of ['zone', 'node', 'default'] can be specified
                         This can be set from sysctl after boot.
                         See Documentation/sysctl/vm.txt for details.
 
-        nr_uarts=       [SERIAL] maximum number of UARTs to be registered.
-
         ohci1394_dma=early      [HW] enable debugging via the ohci1394 driver.
                         See Documentation/debugging-via-ohci1394.txt for more
                         info.
@@ -1716,7 +1729,7 @@ and is between 256 and 4096 characters. It is defined in the file
                                 disable the use of PCIE advanced error reporting.
                 nodomains       [PCI] Disable support for multiple PCI
                                 root domains (aka PCI segments, in ACPI-speak).
-                nommconf        [X86-32,X86_64] Disable use of MMCONFIG for PCI
+                nommconf        [X86] Disable use of MMCONFIG for PCI
                                 Configuration
                 nomsi           [MSI] If the PCI_MSI kernel config parameter is
                                 enabled, this kernel boot option can be used to
@@ -1865,6 +1878,12 @@ and is between 256 and 4096 characters. It is defined in the file
                         autoconfiguration.
                         Ranges are in pairs (memory base and size).
 
+        ports=          [IP_VS_FTP] IPVS ftp helper module
+                        Default is 21.
+                        Up to 8 (IP_VS_APP_MAX_PORTS) ports
+                        may be specified.
+                        Format: <port>,<port>....
+
         print-fatal-signals=
                         [KNL] debug: print fatal signals
                         print-fatal-signals=1: print segfault info to
@@ -1874,6 +1893,14 @@ and is between 256 and 4096 characters. It is defined in the file
         printk.time=    Show timing data prefixed to each printk message line
                         Format: <bool>  (1/Y/y=enable, 0/N/n=disable)
 
+        processor.max_cstate=   [HW,ACPI]
+                        Limit processor to maximum C-state
+                        max_cstate=9 overrides any DMI blacklist limit.
+
+        processor.nocst [HW,ACPI]
+                        Ignore the _CST method to determine C-states,
+                        instead using the legacy FADT method
+
         profile=        [KNL] Enable kernel profiling via /proc/profile
                         Format: [schedule,]<number>
                         Param: "schedule" - profile schedule points.
@@ -1883,14 +1910,6 @@ and is between 256 and 4096 characters. It is defined in the file
                                 Requires CONFIG_SCHEDSTATS
                         Param: "kvm" - profile VM exits.
 
-        processor.max_cstate=   [HW,ACPI]
-                        Limit processor to maximum C-state
-                        max_cstate=9 overrides any DMI blacklist limit.
-
-        processor.nocst [HW,ACPI]
-                        Ignore the _CST method to determine C-states,
-                        instead using the legacy FADT method
-
         prompt_ramdisk= [RAM] List of RAM disks to prompt for floppy disk
                         before loading.
                         See Documentation/blockdev/ramdisk.txt.
@@ -2044,7 +2063,13 @@ and is between 256 and 4096 characters. It is defined in the file
                         allowing boot to proceed.  none ignores them, expecting
                         user space to do the scan.
 
-        selinux         [SELINUX] Disable or enable SELinux at boot time.
+        security=       [SECURITY] Choose a security module to enable at boot.
+                        If this boot parameter is not specified, only the first
+                        security module asking for security registration will be
+                        loaded. An invalid security module name will be treated
+                        as if no module has been chosen.
+
+        selinux=        [SELINUX] Disable or enable SELinux at boot time.
                         Format: { "0" | "1" }
                         See security/selinux/Kconfig help text.
                         0 -- disable.
@@ -2364,6 +2389,8 @@ and is between 256 and 4096 characters. It is defined in the file
 
         tp720=          [HW,PS2]
 
+        trace_buf_size=nn[KMG] [ftrace] will set tracing buffer size.
+
         trix=           [HW,OSS] MediaTrix AudioTrix Pro
                         Format:
                         <io>,<irq>,<dma>,<dma2>,<sb_io>,<sb_irq>,<sb_dma>,<mpu_io>,<mpu_irq>
@@ -2399,7 +2426,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         reported either.
 
         unknown_nmi_panic
-                        [X86-32,X86-64]
+                        [X86]
                         Set unknown_nmi_panic=1 early on boot.
 
         usbcore.autosuspend=
@@ -2466,15 +2493,12 @@ and is between 256 and 4096 characters. It is defined in the file
                                         medium is write-protected).
                         Example: quirks=0419:aaf5:rl,0421:0433:rc
 
-        add_efi_memmap  [EFI; x86-32,X86-64] Include EFI memory map in
-                        kernel's map of available physical RAM.
-
-        vdso=           [X86-32,SH,x86-64]
+        vdso=           [X86,SH]
                         vdso=2: enable compat VDSO (default with COMPAT_VDSO)
                         vdso=1: enable VDSO (default)
                         vdso=0: disable VDSO mapping
 
-        vdso32=         [X86-32,X86-64]
+        vdso32=         [X86]
                         vdso32=2: enable compat VDSO (default with COMPAT_VDSO)
                         vdso32=1: enable 32-bit VDSO (default)
                         vdso32=0: disable 32-bit VDSO mapping
@@ -2507,6 +2531,31 @@ and is between 256 and 4096 characters. It is defined in the file
         vmpoff=         [KNL,S390] Perform z/VM CP command after power off.
                         Format: <command>
 
+        vt.default_blu= [VT]
+                        Format: <blue0>,<blue1>,<blue2>,...,<blue15>
+                        Change the default blue palette of the console.
+                        This is a 16-member array composed of values
+                        ranging from 0-255.
+
+        vt.default_grn= [VT]
+                        Format: <green0>,<green1>,<green2>,...,<green15>
+                        Change the default green palette of the console.
+                        This is a 16-member array composed of values
+                        ranging from 0-255.
+
+        vt.default_red= [VT]
+                        Format: <red0>,<red1>,<red2>,...,<red15>
+                        Change the default red palette of the console.
+                        This is a 16-member array composed of values
+                        ranging from 0-255.
+
+        vt.default_utf8=
+                        [VT]
+                        Format=<0|1>
+                        Set system-wide default UTF-8 mode for all tty's.
+                        Default is 1, i.e. UTF-8 mode is enabled for all
+                        newly opened terminals.
+
         waveartist=     [HW,OSS]
                         Format: <io>,<irq>,<dma>,<dma2>
 
@@ -2519,6 +2568,10 @@ and is between 256 and 4096 characters. It is defined in the file
         wdt=            [WDT] Watchdog
                         See Documentation/watchdog/wdt.txt.
 
+        x2apic_phys     [X86-64,APIC] Use x2apic physical mode instead of
+                        default x2apic cluster mode on platforms
+                        supporting x2apic.
+
         xd=             [HW,XT] Original XT pre-IDE (RLL encoded) disks.
         xd_geo=         See header of drivers/block/xd.c.
 
@@ -2526,9 +2579,6 @@ and is between 256 and 4096 characters. It is defined in the file
                         Format:
                         <irq>,<irq_mask>,<io>,<full_duplex>,<do_sound>,<lockup_hack>[,<irq2>[,<irq3>[,<irq4>]]]
 
-        norandmaps      Don't use address space randomization.  Equivalent to
-                        echo 0 > /proc/sys/kernel/randomize_va_space
-
 ______________________________________________________________________
 
 TODO: