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Kernel v2.6.9 /Documentation/kernel-parameters.txt

Filename:/Documentation/kernel-parameters.txt
Lines Added:81
Lines Deleted:4
Also changed in: (Previous) 2.6.9-final  2.6.9-rc4  2.6.9-rc3-bk10  2.6.9-rc3-bk9  2.6.9-rc3-bk8  2.6.9-rc3-bk7 
(Following) 2.6.9-bk2  2.6.9-bk3  2.6.9-bk4  2.6.9-bk5  2.6.9-bk6  2.6.9-bk7 

Location
[  2.6.9
  [  Documentation
     o  kernel-parameters.txt

Patch

diff -Nru a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
--- a/Documentation/kernel-parameters.txt   2004-10-18 14:57:18 -07:00
+++ b/Documentation/kernel-parameters.txt   2004-10-18 14:57:18 -07:00
@@ -97,9 +97,6 @@
          See header of drivers/scsi/53c7xx.c.
          See also Documentation/scsi/ncr53c7xx.txt.
 
-   98busmouse.irq=   [HW,MOUSE] PC-9801 Bus Mouse Driver
-         Format: <irq>, default is 13
-
    acpi=      [HW,ACPI] Advanced Configuration and Power Interface 
          Format: { force | off | ht | strict }
          force -- enable ACPI if default was off
@@ -138,6 +135,20 @@
          Recognize and ignore IRQ0/pin2 Interrupt Override.
          For broken nForce2 BIOS resulting in XT-PIC timer.
 
+   acpi_dbg_layer=   [HW,ACPI]
+         Format: <int>
+         Each bit of the <int> indicates an acpi debug layer,
+         1: enable, 0: disable. It is useful for boot time
+         debugging. After system has booted up, it can be set
+         via /proc/acpi/debug_layer.
+
+   acpi_dbg_level=   [HW,ACPI]
+         Format: <int>
+         Each bit of the <int> indicates an acpi debug level,
+         1: enable, 0: disable. It is useful for boot time
+         debugging. After system has booted up, it can be set
+         via /proc/acpi/debug_level.
+
    ad1816=      [HW,OSS]
          Format: <io>,<irq>,<dma>,<dma2>
          See also Documentation/sound/oss/AD1816.
@@ -189,6 +200,11 @@
          Disable APC CPU standby support. SPARCstation-Fox does
          not play well with APC CPU idle - disable it if you have
          APC and your system crashes randomly.
+
+   apic=      [APIC,i386] Change the output verbosity  whilst booting
+         Format: { quiet (default) | verbose | debug }
+         Change the amount of debugging information output
+         when initialising the APIC and IO-APIC components.
  
    apm=      [APM] Advanced Power Management
          See header of arch/i386/kernel/apm.c.
@@ -448,6 +464,11 @@
    hd?=      [HW] (E)IDE subsystem
    hd?lun=      See Documentation/ide.txt.
 
+   highmem=nn[KMG]   [KNL,BOOT] forces the highmem zone to have an exact
+         size of <nn>. This works even on boxes that have no
+         highmem otherwise. This also works to reduce highmem
+         size on bigger boxes.
+
    hisax=      [HW,ISDN]
          See Documentation/isdn/README.HiSax.
 
@@ -523,6 +544,18 @@
    isapnp=      [ISAPNP]
          Format: <RDP>, <reset>, <pci_scan>, <verbosity>
 
+   isolcpus=   [KNL,SMP] Isolate CPUs from the general scheduler.
+         Format: <cpu number>, ..., <cpu number>
+         This option can be used to specify one or more CPUs
+         to isolate from the general SMP balancing and scheduling
+         algorithms. The only way to move a process onto or off
+         an "isolated" CPU is via the CPU affinity syscalls.
+
+         This option is the preferred way to isolate CPUs. The
+         alternative - manually setting the CPU mask of all tasks
+         in the system can cause problems and suboptimal load
+         balancer performance.
+
    isp16=      [HW,CD]
          Format: <io>,<irq>,<dma>,<setup>
 
@@ -574,6 +607,20 @@
             so, the driver will manage that printer.
             See also header of drivers/char/lp.c.
 
+   lpj=n      [KNL]
+         Sets loops_per_jiffy to given constant, thus avoiding
+         time-consuming boot-time autodetection (up to 250 ms per
+         CPU). 0 enables autodetection (default). To determine
+         the correct value for your kernel, boot with normal
+         autodetection and see what value is printed. Note that
+         on SMP systems the preset will be applied to all CPUs,
+         which is likely to cause problems if your CPUs need
+         significantly divergent settings. An incorrect value
+         will cause delays in the kernel to be wrong, leading to
+         unpredictable I/O errors and other breakage. Although
+         unlikely, in the extreme case this might damage your
+         hardware.
+
    ltpc=      [NET]
          Format: <io>,<irq>,<dma>
 
@@ -650,6 +697,12 @@
 
    mga=      [HW,DRM]
 
+   mousedev.tap_time=
+         [MOUSE] Maximum time between finger touching and
+         leaving touchpad surface for touch to be considered
+         a tap and be reported as a left button click (for
+         touchpads working in absolute mode only).
+         Format: <msecs>
    mousedev.xres=   [MOUSE] Horizontal screen resolution, used for devices
          reporting absolute coordinates, such as tablets
    mousedev.yres=   [MOUSE] Vertical screen resolution, used for devices
@@ -707,6 +760,9 @@
    noasync      [HW,M68K] Disables async and sync negotiation for
          all devices.
 
+   nobats      [PPC] Do not use BATs for mapping kernel lowmem
+         on "Classic" PPC cores.
+
    nocache      [ARM]
  
    nodisconnect   [HW,SCSI,M68K] Disables SCSI disconnects.
@@ -739,8 +795,13 @@
 
    nolapic      [IA-32,APIC] Do not enable or use the local APIC.
 
+   noltlbs      [PPC] Do not use large page/tlb entries for kernel
+         lowmem mapping on PPC40x.
+
    nomce      [IA-32] Machine Check Exception
 
+   noresidual   [PPC] Don't use residual data on PReP machines.
+
    noresume   [SWSUSP] Disables resume and restore original swap space.
  
    no-scroll   [VGA] Disables scrollback.
@@ -852,6 +913,13 @@
       noacpi         [IA-32] Do not use ACPI for IRQ routing
                or for PCI scanning.
 
+      firmware      [ARM] Do not re-enumerate the bus but
+               instead just use the configuration
+               from the bootloader. This is currently
+               used on IXP2000 systems where the
+               bus has to be configured a certain way
+               for adjunct CPUs.
+
    pcmv=      [HW,PCMCIA] BadgePAD 4
 
    pd.      [PARIDE]
@@ -887,7 +955,10 @@
          Ranges are in pairs (memory base and size).
 
    profile=   [KNL] Enable kernel profiling via /proc/profile
-         (param: profile step/bucket size as a power of 2)
+         { schedule | <number> }
+         (param: schedule - profile schedule points}
+         (param: profile step/bucket size as a power of 2 for
+            statistical time based profiling)
 
    prompt_ramdisk=   [RAM] List of RAM disks to prompt for floppy disk
          before loading.
@@ -1249,6 +1320,12 @@
          Use vga=ask for menu.
          This is actually a boot loader parameter; the value is
          passed to the kernel using a special protocol.
+
+   vmalloc=nn[KMG]   [KNL,BOOT] forces the vmalloc area to have an exact
+         size of <nn>. This can be used to increase the
+         minimum size (128MB on x86). It can also be used to
+         decrease the size and leave more room for directly
+         mapped kernel RAM.
 
    vmhalt=      [KNL,S390]
 


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