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authorIngo Molnar <mingo@elte.hu>2008-09-22 07:08:57 -0400
committerIngo Molnar <mingo@elte.hu>2008-09-22 07:08:57 -0400
commit0b88641f1bafdbd087d5e63987a30cc0eadd63b9 (patch)
tree81dcf756db373444140bb2623584710c628e3048 /Documentation/kernel-parameters.txt
parentfbdbf709938d155c719c76b9894d28342632c797 (diff)
parent72d31053f62c4bc464c2783974926969614a8649 (diff)
Merge commit 'v2.6.27-rc7' into x86/debug
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r--Documentation/kernel-parameters.txt51
1 files changed, 40 insertions, 11 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 8679e80b9fc..82a079d4097 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -87,7 +87,8 @@ parameter is applicable:
87 SH SuperH architecture is enabled. 87 SH SuperH architecture is enabled.
88 SMP The kernel is an SMP kernel. 88 SMP The kernel is an SMP kernel.
89 SPARC Sparc architecture is enabled. 89 SPARC Sparc architecture is enabled.
90 SWSUSP Software suspend is enabled. 90 SWSUSP Software suspend (hibernation) is enabled.
91 SUSPEND System suspend states are enabled.
91 TS Appropriate touchscreen support is enabled. 92 TS Appropriate touchscreen support is enabled.
92 USB USB support is enabled. 93 USB USB support is enabled.
93 USBHID USB Human Interface Device support is enabled. 94 USBHID USB Human Interface Device support is enabled.
@@ -147,10 +148,12 @@ and is between 256 and 4096 characters. It is defined in the file
147 default: 0 148 default: 0
148 149
149 acpi_sleep= [HW,ACPI] Sleep options 150 acpi_sleep= [HW,ACPI] Sleep options
150 Format: { s3_bios, s3_mode, s3_beep, old_ordering } 151 Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig, old_ordering }
151 See Documentation/power/video.txt for s3_bios and s3_mode. 152 See Documentation/power/video.txt for s3_bios and s3_mode.
152 s3_beep is for debugging; it makes the PC's speaker beep 153 s3_beep is for debugging; it makes the PC's speaker beep
153 as soon as the kernel's real-mode entry point is called. 154 as soon as the kernel's real-mode entry point is called.
155 s4_nohwsig prevents ACPI hardware signature from being
156 used during resume from hibernation.
154 old_ordering causes the ACPI 1.0 ordering of the _PTS 157 old_ordering causes the ACPI 1.0 ordering of the _PTS
155 control method, wrt putting devices into low power 158 control method, wrt putting devices into low power
156 states, to be enforced (the ACPI 2.0 ordering of _PTS is 159 states, to be enforced (the ACPI 2.0 ordering of _PTS is
@@ -362,6 +365,8 @@ and is between 256 and 4096 characters. It is defined in the file
362 no delay (0). 365 no delay (0).
363 Format: integer 366 Format: integer
364 367
368 bootmem_debug [KNL] Enable bootmem allocator debug messages.
369
365 bttv.card= [HW,V4L] bttv (bt848 + bt878 based grabber cards) 370 bttv.card= [HW,V4L] bttv (bt848 + bt878 based grabber cards)
366 bttv.radio= Most important insmod options are available as 371 bttv.radio= Most important insmod options are available as
367 kernel args too. 372 kernel args too.
@@ -774,8 +779,22 @@ and is between 256 and 4096 characters. It is defined in the file
774 hisax= [HW,ISDN] 779 hisax= [HW,ISDN]
775 See Documentation/isdn/README.HiSax. 780 See Documentation/isdn/README.HiSax.
776 781
777 hugepages= [HW,X86-32,IA-64] Maximal number of HugeTLB pages. 782 hugepages= [HW,X86-32,IA-64] HugeTLB pages to allocate at boot.
778 hugepagesz= [HW,IA-64,PPC] The size of the HugeTLB pages. 783 hugepagesz= [HW,IA-64,PPC,X86-64] The size of the HugeTLB pages.
784 On x86-64 and powerpc, this option can be specified
785 multiple times interleaved with hugepages= to reserve
786 huge pages of different sizes. Valid pages sizes on
787 x86-64 are 2M (when the CPU supports "pse") and 1G
788 (when the CPU supports the "pdpe1gb" cpuinfo flag)
789 Note that 1GB pages can only be allocated at boot time
790 using hugepages= and not freed afterwards.
791 default_hugepagesz=
792 [same as hugepagesz=] The size of the default
793 HugeTLB page size. This is the size represented by
794 the legacy /proc/ hugepages APIs, used for SHM, and
795 default size when mounting hugetlbfs filesystems.
796 Defaults to the default architecture's huge page size
797 if not specified.
779 798
780 i8042.direct [HW] Put keyboard port into non-translated mode 799 i8042.direct [HW] Put keyboard port into non-translated mode
781 i8042.dumbkbd [HW] Pretend that controller can only read data from 800 i8042.dumbkbd [HW] Pretend that controller can only read data from
@@ -1055,6 +1074,9 @@ and is between 256 and 4096 characters. It is defined in the file
1055 1074
1056 * [no]ncq: Turn on or off NCQ. 1075 * [no]ncq: Turn on or off NCQ.
1057 1076
1077 * nohrst, nosrst, norst: suppress hard, soft
1078 and both resets.
1079
1058 If there are multiple matching configurations changing 1080 If there are multiple matching configurations changing
1059 the same attribute, the last one is used. 1081 the same attribute, the last one is used.
1060 1082
@@ -1225,6 +1247,14 @@ and is between 256 and 4096 characters. It is defined in the file
1225 1247
1226 mga= [HW,DRM] 1248 mga= [HW,DRM]
1227 1249
1250 mminit_loglevel=
1251 [KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this
1252 parameter allows control of the logging verbosity for
1253 the additional memory initialisation checks. A value
1254 of 0 disables mminit logging and a level of 4 will
1255 log everything. Information is printed at KERN_DEBUG
1256 so loglevel=8 may also need to be specified.
1257
1228 mousedev.tap_time= 1258 mousedev.tap_time=
1229 [MOUSE] Maximum time between finger touching and 1259 [MOUSE] Maximum time between finger touching and
1230 leaving touchpad surface for touch to be considered 1260 leaving touchpad surface for touch to be considered
@@ -2107,6 +2137,12 @@ and is between 256 and 4096 characters. It is defined in the file
2107 2137
2108 tdfx= [HW,DRM] 2138 tdfx= [HW,DRM]
2109 2139
2140 test_suspend= [SUSPEND]
2141 Specify "mem" (for Suspend-to-RAM) or "standby" (for
2142 standby suspend) as the system sleep state to briefly
2143 enter during system startup. The system is woken from
2144 this state using a wakeup-capable RTC alarm.
2145
2110 thash_entries= [KNL,NET] 2146 thash_entries= [KNL,NET]
2111 Set number of hash buckets for TCP connection 2147 Set number of hash buckets for TCP connection
2112 2148
@@ -2134,13 +2170,6 @@ and is between 256 and 4096 characters. It is defined in the file
2134 <deci-seconds>: poll all this frequency 2170 <deci-seconds>: poll all this frequency
2135 0: no polling (default) 2171 0: no polling (default)
2136 2172
2137 tipar.timeout= [HW,PPT]
2138 Set communications timeout in tenths of a second
2139 (default 15).
2140
2141 tipar.delay= [HW,PPT]
2142 Set inter-bit delay in microseconds (default 10).
2143
2144 tmscsim= [HW,SCSI] 2173 tmscsim= [HW,SCSI]
2145 See comment before function dc390_setup() in 2174 See comment before function dc390_setup() in
2146 drivers/scsi/tmscsim.c. 2175 drivers/scsi/tmscsim.c.