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Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
[pandora-kernel.git]
/
Documentation
/
kernel-parameters.txt
diff --git
a/Documentation/kernel-parameters.txt
b/Documentation/kernel-parameters.txt
index
137e993
..
b79bcdf
100644
(file)
--- a/
Documentation/kernel-parameters.txt
+++ b/
Documentation/kernel-parameters.txt
@@
-164,6
+164,10
@@
and is between 256 and 4096 characters. It is defined in the file
acpi_skip_timer_override [HW,ACPI]
Recognize and ignore IRQ0/pin2 Interrupt Override.
For broken nForce2 BIOS resulting in XT-PIC timer.
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_dbg_layer= [HW,ACPI]
Format: <int>
acpi_dbg_layer= [HW,ACPI]
Format: <int>
@@
-289,9
+293,6
@@
and is between 256 and 4096 characters. It is defined in the file
autotest [IA64]
autotest [IA64]
- awe= [HW,OSS] AWE32/SB32/AWE64 wave table synth
- Format: <io>,<memsize>,<isapnp>
-
aztcd= [HW,CD] Aztech CD268 CDROM driver
Format: <io>,0x79 (?)
aztcd= [HW,CD] Aztech CD268 CDROM driver
Format: <io>,0x79 (?)
@@
-355,9
+356,9
@@
and is between 256 and 4096 characters. It is defined in the file
clock= [BUGS=IA-32, HW] gettimeofday clocksource override.
[Deprecated]
clock= [BUGS=IA-32, HW] gettimeofday clocksource override.
[Deprecated]
- Forces specified clocksource (if ava
li
able) to be used
+ Forces specified clocksource (if ava
il
able) to be used
when calculating gettimeofday(). If specified
when calculating gettimeofday(). If specified
- clocksource is not ava
li
ble, it defaults to PIT.
+ clocksource is not ava
ila
ble, it defaults to PIT.
Format: { pit | tsc | cyclone | pmtmr }
disable_8254_timer
Format: { pit | tsc | cyclone | pmtmr }
disable_8254_timer
@@
-536,10
+537,6
@@
and is between 256 and 4096 characters. It is defined in the file
Default value is 0.
Value can be changed at runtime via /selinux/enforce.
Default value is 0.
Value can be changed at runtime via /selinux/enforce.
- es1370= [HW,OSS]
- Format: <lineout>[,<micbias>]
- See also header of sound/oss/es1370.c.
-
es1371= [HW,OSS]
Format: <spdif>,[<nomix>,[<amplifier>]]
See also header of sound/oss/es1371.c.
es1371= [HW,OSS]
Format: <spdif>,[<nomix>,[<amplifier>]]
See also header of sound/oss/es1371.c.
@@
-560,9
+557,6
@@
and is between 256 and 4096 characters. It is defined in the file
floppy= [HW]
See Documentation/floppy.txt.
floppy= [HW]
See Documentation/floppy.txt.
- ftape= [HW] Floppy Tape subsystem debugging options.
- See Documentation/ftape.txt.
-
gamecon.map[2|3]=
[HW,JOY] Multisystem joystick and NES/SNES/PSX pad
support via parallel port (up to 5 devices per port)
gamecon.map[2|3]=
[HW,JOY] Multisystem joystick and NES/SNES/PSX pad
support via parallel port (up to 5 devices per port)
@@
-580,9
+574,6
@@
and is between 256 and 4096 characters. It is defined in the file
gscd= [HW,CD]
Format: <io>
gscd= [HW,CD]
Format: <io>
- gus= [HW,OSS]
- Format: <io>,<irq>,<dma>,<dma16>
-
gvp11= [HW,SCSI]
hashdist= [KNL,NUMA] Large hashes allocated during boot
gvp11= [HW,SCSI]
hashdist= [KNL,NUMA] Large hashes allocated during boot
@@
-608,11
+599,9
@@
and is between 256 and 4096 characters. It is defined in the file
hugepages= [HW,IA-32,IA-64] Maximal number of HugeTLB pages.
hugepages= [HW,IA-32,IA-64] Maximal number of HugeTLB pages.
- noirqbalance [IA-32,SMP,KNL] Disable kernel irq balancing
-
i8042.direct [HW] Put keyboard port into non-translated mode
i8042.direct [HW] Put keyboard port into non-translated mode
- i8042.dumbkbd [HW] Pretend that controlle
d
can only read data from
- keyboard and can
not control its state
+ i8042.dumbkbd [HW] Pretend that controlle
r
can only read data from
+ keyboard and cannot control its state
(Don't attempt to blink the leds)
i8042.noaux [HW] Don't check for auxiliary (== mouse) port
i8042.nokbd [HW] Don't check/create keyboard port
(Don't attempt to blink the leds)
i8042.noaux [HW] Don't check for auxiliary (== mouse) port
i8042.nokbd [HW] Don't check/create keyboard port
@@
-659,6
+648,10
@@
and is between 256 and 4096 characters. It is defined in the file
idle= [HW]
Format: idle=poll or idle=halt
idle= [HW]
Format: idle=poll or idle=halt
+ ignore_loglevel [KNL]
+ Ignore loglevel setting - this will print /all/
+ kernel messages to the console. Useful for debugging.
+
ihash_entries= [KNL]
Set number of hash buckets for inode cache.
ihash_entries= [KNL]
Set number of hash buckets for inode cache.
@@
-723,7
+716,12
@@
and is between 256 and 4096 characters. It is defined in the file
Format: <RDP>,<reset>,<pci_scan>,<verbosity>
isolcpus= [KNL,SMP] Isolate CPUs from the general scheduler.
Format: <RDP>,<reset>,<pci_scan>,<verbosity>
isolcpus= [KNL,SMP] Isolate CPUs from the general scheduler.
- Format: <cpu number>,...,<cpu number>
+ Format:
+ <cpu number>,...,<cpu number>
+ or
+ <cpu number>-<cpu number> (must be a positive range in ascending order)
+ or a mixture
+ <cpu number>,...,<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
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
@@
-841,12
+839,6
@@
and is between 256 and 4096 characters. It is defined in the file
(machvec) in a generic kernel.
Example: machvec=hpzx1_swiotlb
(machvec) in a generic kernel.
Example: machvec=hpzx1_swiotlb
- mad16= [HW,OSS] Format:
- <io>,<irq>,<dma>,<dma16>,<mpu_io>,<mpu_irq>,<joystick>
-
- maui= [HW,OSS]
- Format: <io>,<irq>
-
max_loop= [LOOP] Maximum number of loopback devices that can
be mounted
Format: <1-256>
max_loop= [LOOP] Maximum number of loopback devices that can
be mounted
Format: <1-256>
@@
-1027,6
+1019,10
@@
and is between 256 and 4096 characters. It is defined in the file
emulation library even if a 387 maths coprocessor
is present.
emulation library even if a 387 maths coprocessor
is present.
+ noaliencache [MM, NUMA] Disables the allcoation of alien caches in
+ the slab allocator. Saves per-node memory, but will
+ impact performance on real NUMA hardware.
+
noalign [KNL,ARM]
noapic [SMP,APIC] Tells the kernel to not make use of any
noalign [KNL,ARM]
noapic [SMP,APIC] Tells the kernel to not make use of any
@@
-1067,9
+1063,14
@@
and is between 256 and 4096 characters. It is defined in the file
in certain environments such as networked servers or
real-time systems.
in certain environments such as networked servers or
real-time systems.
+ noirqbalance [IA-32,SMP,KNL] Disable kernel irq balancing
+
noirqdebug [IA-32] Disables the code which attempts to detect and
disable unhandled interrupt sources.
noirqdebug [IA-32] Disables the code which attempts to detect and
disable unhandled interrupt sources.
+ no_timer_check [IA-32,X86_64,APIC] Disables the code which tests for
+ broken timer IRQ sources.
+
noisapnp [ISAPNP] Disables ISA PnP code.
noinitrd [RAM] Tells the kernel not to load any configured
noisapnp [ISAPNP] Disables ISA PnP code.
noinitrd [RAM] Tells the kernel not to load any configured
@@
-1114,9
+1115,6
@@
and is between 256 and 4096 characters. It is defined in the file
opl3= [HW,OSS]
Format: <io>
opl3= [HW,OSS]
Format: <io>
- opl3sa= [HW,OSS]
- Format: <io>,<irq>,<dma>,<dma2>,<mpu_io>,<mpu_irq>
-
opl3sa2= [HW,OSS] Format:
<io>,<irq>,<dma>,<dma2>,<mss_io>,<mpu_io>,<ymode>,<loopback>[,<isapnp>,<multiple]
opl3sa2= [HW,OSS] Format:
<io>,<irq>,<dma>,<dma2>,<mss_io>,<mpu_io>,<ymode>,<loopback>[,<isapnp>,<multiple]
@@
-1250,6
+1248,11
@@
and is between 256 and 4096 characters. It is defined in the file
machine check when some devices' config space
is read. But various workarounds are disabled
and some IOMMU drivers will not work.
machine check when some devices' config space
is read. But various workarounds are disabled
and some IOMMU drivers will not work.
+ bfsort Sort PCI devices into breadth-first order.
+ This sorting is done to get a device
+ order compatible with older (<= 2.4) kernels.
+ nobfsort Don't sort PCI devices into breadth-first order.
+
pcmv= [HW,PCMCIA] BadgePAD 4
pd. [PARIDE]
pcmv= [HW,PCMCIA] BadgePAD 4
pd. [PARIDE]
@@
-1298,6
+1301,7
@@
and is between 256 and 4096 characters. It is defined in the file
Param: "schedule" - profile schedule points.
Param: <number> - step/bucket size as a power of 2 for
statistical time based profiling.
Param: "schedule" - profile schedule points.
Param: <number> - step/bucket size as a power of 2 for
statistical time based profiling.
+ Param: "sleep" - profile D-state sleeping (millisecs)
processor.max_cstate= [HW,ACPI]
Limit processor to maximum C-state
processor.max_cstate= [HW,ACPI]
Limit processor to maximum C-state
@@
-1357,10
+1361,6
@@
and is between 256 and 4096 characters. It is defined in the file
rcu.qlowmark= [KNL,BOOT] Set threshold of queued
RCU callbacks below which batch limiting is re-enabled.
rcu.qlowmark= [KNL,BOOT] Set threshold of queued
RCU callbacks below which batch limiting is re-enabled.
- rcu.rsinterval= [KNL,BOOT,SMP] Set the number of additional
- RCU callbacks to queued before forcing reschedule
- on all cpus.
-
rdinit= [KNL]
Format: <full_path>
Run specified binary instead of /init from the ramdisk,
rdinit= [KNL]
Format: <full_path>
Run specified binary instead of /init from the ramdisk,
@@
-1368,7
+1368,7
@@
and is between 256 and 4096 characters. It is defined in the file
reboot= [BUGS=IA-32,BUGS=ARM,BUGS=IA-64] Rebooting mode
Format: <reboot_mode>[,<reboot_mode2>[,...]]
reboot= [BUGS=IA-32,BUGS=ARM,BUGS=IA-64] Rebooting mode
Format: <reboot_mode>[,<reboot_mode2>[,...]]
- See arch/*/kernel/reboot.c
.
+ See arch/*/kernel/reboot.c
or arch/*/kernel/process.c
reserve= [KNL,BUGS] Force the kernel to ignore some iomem area
reserve= [KNL,BUGS] Force the kernel to ignore some iomem area
@@
-1383,6
+1383,12
@@
and is between 256 and 4096 characters. It is defined in the file
resume= [SWSUSP]
Specify the partition device for software suspend
resume= [SWSUSP]
Specify the partition device for software suspend
+ resume_offset= [SWSUSP]
+ Specify the offset from the beginning of the partition
+ given by "resume=" at which the swap header is located,
+ in <PAGE_SIZE> units (needed only for swap files).
+ See Documentation/power/swsusp-and-swap-files.txt
+
rhash_entries= [KNL,NET]
Set number of hash buckets for route cache
rhash_entries= [KNL,NET]
Set number of hash buckets for route cache
@@
-1433,6
+1439,11
@@
and is between 256 and 4096 characters. It is defined in the file
scsi_logging= [SCSI]
scsi_logging= [SCSI]
+ scsi_mod.scan= [SCSI] sync (default) scans SCSI busses as they are
+ discovered. async scans them in kernel threads,
+ allowing boot to proceed. none ignores them, expecting
+ user space to do the scan.
+
selinux [SELINUX] Disable or enable SELinux at boot time.
Format: { "0" | "1" }
See security/selinux/Kconfig help text.
selinux [SELINUX] Disable or enable SELinux at boot time.
Format: { "0" | "1" }
See security/selinux/Kconfig help text.
@@
-1455,9
+1466,6
@@
and is between 256 and 4096 characters. It is defined in the file
sg_def_reserved_size= [SCSI]
sg_def_reserved_size= [SCSI]
- sgalaxy= [HW,OSS]
- Format: <io>,<irq>,<dma>,<dma2>,<sgbase>
-
shapers= [NET]
Maximal number of shapers.
shapers= [NET]
Maximal number of shapers.
@@
-1598,9
+1606,6
@@
and is between 256 and 4096 characters. It is defined in the file
snd-ymfpci= [HW,ALSA]
snd-ymfpci= [HW,ALSA]
- sonicvibes= [HW,OSS]
- Format: <reverb>
-
sonycd535= [HW,CD]
Format: <io>[,<irq>]
sonycd535= [HW,CD]
Format: <io>[,<irq>]
@@
-1750,6
+1755,9
@@
and is between 256 and 4096 characters. It is defined in the file
norandmaps Don't use address space randomization
Equivalent to echo 0 > /proc/sys/kernel/randomize_va_space
norandmaps Don't use address space randomization
Equivalent to echo 0 > /proc/sys/kernel/randomize_va_space
+ unwind_debug=N N > 0 will enable dwarf2 unwinder debugging
+ This is useful to get more information why
+ you got a "dwarf2 unwinder stuck"
______________________________________________________________________
______________________________________________________________________